1.) Ace wanted to buy a gift for his mother
worth $18.60. He has $7.40 in Savings
and another $6.30 Saved from his
allowance for the past two weeks. How much more
does he need to save this week?

Answer:

56 + (- 56) = 0

(- 240) + 370 = 130

(- 5.7) - (- 4.2) = - 1.5

Step-by-step explanation:

56 + (- 56)

56 - 56

0

(- 240) + 370

- 240 + 370

370 - 240

130

(- 5.7) - (- 4.2)

- 5.7 + 4.2

4.2 - 5.7

- 1.5

Answer:

0, 130, -1.5

Step-by-step explanation:

Lets go over a few things that will help answer the questions:

A + and - make a - sign

A - and a - make a + sign

Ok, now lets sum our first expression:

56+(-56)

Remembering above that a + and - make a - sign:

56-(56)

=

0

Next:

(-240)+370

This is just a postive adding to a negative. So its:

-240+370=130

Finally we have:

(-5.7)-(-4.2)

This may look a bit confusing, so lets clean it up a bit:

The parethese around the -5.7 dont matter, and can be removed:

-5.7-(-4.2)

And remembering that a - and - make a +:

-5.7+4.2

Now adding the postive to the negative value:

-1.5

It is still a negative because the postive value being added to to -5.7 was smaller, so it still was negative, just a smaller negative number.

Hope this helps!

Answer:

y = 5/4x - 8

Step-by-step explanation:

first you convert the equation to y = mx + b

then you add the the -8 into the x and the 2 into the y and solve for b

b = -8 and since it is parallel same slope.

hope this helps :)

Answer is 1832.7

step by step

z=kx^3 / y^3

167=27k/1000

k=16700/27

k=6185.2, then

z=6185.2×4^3/6^3

z=6185.2×64/216

z=1832.7

Answer:

Step-by-step explanation:

If Robert is 7 1/2 months old you need to multiply 7 1/2 by 12 because there are 12 months in a year.  

7x12=84  

1/2x12=6

6+84=90

Answer:

r < -504

Step-by-step explanation:

The problem says;

72 + r < -432

Inverse operations;

72 + r < -432

-72       -72

r < - 504

Answer:

if 25c + 15d = 0, then d = -25/15c

Step-by-step explan

just yes, that

Answer:

1) 9

2) 34

Step-by-step explanation:

For the first one, it would be

= (6×3)/2

= 18/2

= 9

The second one is,

= 36- (12/6)

= 36 - 2

= 34

Answer:Click on the file below

Step-by-step explanation:

Answer:

12.25

Step-by-step explanation:

3.5*3.5=12.25

Answer:

12.25m^2

Step-by-step explanation:

3 1/2 × 3 1/2

3 1/2 is equivalent to 7/2

7/2 × 7/2= 49/4

this simplifies to 12.25

answer: 12.25 m^2

The option (b) set y equal to a constant other than zero to get the curve of points where the slope is that constant.

A slope field is a visual representation of the slopes of a function's derivative at different points on the xy-plane. The slope at a particular point in the xy-plane is given by the derivative of the function at that point.

To match the given equations with their corresponding slope fields, you need to analyze the behavior of the slopes and isoclines. An isocline is a curve in the plane along which the slope of a function is constant. Isoclines are useful in constructing slope fields by hand, as they help in determining the slope at different points.

To start with, set y equal to zero and observe how the derivative behaves along the x-axis. Similarly, set x equal to zero and observe the behavior of the derivative along the y-axis. These observations will give you an idea of the direction and magnitude of the slope at different points in the xy-plane.

Next, consider the curve in the plane defined by setting y' = 0. This curve represents the points in the picture where the slope is zero. These points are known as critical points or equilibrium points. They are essential in analyzing the stability and behavior of a system.

These curves are called isoclines and can be used to construct the slope field picture by hand.

To know more about slope here.

https://brainly.com/question/3605446

#SPJ4

Complete Question:

Match the following equations with their slope field. Clicking on each picture will give you an enlarged view. While you can probably sove this problem by guessing, it is useful to try to predict characteristics of the slope field and then match them to the picture Here are some handy characteristics to start with- you will develop more as you practice. Set y equal to zero and look at how the derivatiwe behaves along the x axis. Do the same for the y axis by setting x equal to 0. Consider the curve in the plane defined by setting y' = 0-this should correspond to the points in the picture where the slope is zero. Setting y equal to a constant other than zero gives the curve of points where the slepe is that constant. These are called isoclines, and can be used to construct the slope field picture by hand.

Answer:

AB is not a tangent. The lengths 4, 12, and 13 do not form a right triangle.

√(4^2 + 12^2) = √160, which is not equal to 13.

Answer:

No

Step-by-step explanation:

if AB is a tangent the the angle BAC = 90°

using Pythagoras' theorem

then square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

BC² = 13² = 169

AB² + AC² = 12² + 4² = 144 + 16 = 160

since BC²≠ AB² + AC²

then Δ ABC is not a right triangle so AB is not a tangent

Type I error is "Megan's results show significant improvements in health associated with a whole foods diet."

A Type I error occurs when the null hypothesis is rejected, even though it is true.

In this case, the null hypothesis states that a whole foods diet would not have any impact on general health.

Therefore, a Type I error would occur if Megan's results show significant improvements in health associated with a whole foods diet.

This means that Megan would reject the null hypothesis and conclude that a whole foods diet does have an impact on general health, even though it is not true.

So, the statement that would indicate a Type I error is "Megan's results show significant improvements in health associated with a whole foods diet."

To learn more on Null hypothesis click:

https://brainly.com/question/30821298

#SPJ1

Answer:

\(Area = 153.938040026m^2\)

\(Circumference= 43.9822971503m\)

Step-by-step explanation:

Area

\(Area = \pi r^2\\Area = \pi *7^2\\Area = 49\pi\\Area = 153.938040026\)

Circumference

\(C = 2\pi r\\C = 2\pi*7\\C= 14\pi\\C=43.9822971503\)

Answer:

ok

Step-by-step explanation:

The best assessment of the linearity of the relationship between the day of the month and account balance would be "Because the residual plot has no obvious pattern, and the scatterplot appears linear, it is appropriate to use the line of best fit to predict the account balance based on the day of the month."The correct answer is option C.

When assessing linearity, it is important to examine both the scatterplot and the residual plot. The scatterplot is used to visualize the relationship between the variables, while the residual plot helps us assess the appropriateness of a linear model by examining the pattern of the residuals (the differences between observed and predicted values).

If the scatterplot appears reasonably linear, it suggests that there is a linear relationship between the variables. In this case, since the scatterplot appears linear, it supports the use of a linear model to predict the account balance based on the day of the month.

Furthermore, the residual plot is used to check for any patterns or systematic deviations from the line of best fit. If the residual plot exhibits no obvious pattern and the residuals appear randomly distributed around zero, it indicates that the linear model captures the relationship adequately.

Therefore, if the residual plot shows no obvious pattern, it provides further evidence in favor of using the line of best fit to predict the account balance based on the day of the month.

In conclusion, when the scatterplot appears linear and the residual plot shows no obvious pattern, it is appropriate to use the line of best fit to predict the account balance based on the day of the month.

For more such questions on linearity,click on

https://brainly.com/question/2030026

#SPJ8  

Answer:

person above

Step-by-step explanation:

the obvious

Answer

D

Step-by-step explanation:

Edge 2020

Answer:

6th grade all the way up to colledge

Step-by-step explanation:

Answer:

Not really ideal as this is just fact finder and not crunch home schooling, This is because as the real teachings for 3rd grader and 6th grader start with worksheets and end with tests and such prep for such is exactly worksheets and tests, then mock past papers and predicted past papers and finally learning the specification ie) formula need to be at front of answers to guarantee higehr points as one of the specs of good exam efforts.

Thus saying;  For 3rd yr and 6th graders

Maths worksheets that would help both units are

Fractions both converting, adding (HCF for denominator) , dividing (Flipping and subtracting), multiplying  various ways.

Graphs  Showing all equations

Linear is y to find points = mx+c format

Linear is equation of the line is  y - y1 = y1 (x-x1)

Perpendicular is  if m1 , m2 are perpendicular lines then then m1= -1/m2   which basically means  divide your gradient by -1.

For year 6 build up to partial fractions A / ( x+ a)  +B/ (x+a)^2  =  C/(x+b)  

Being special case of the recognised formula   (x)^2 (a+b) sort of question.

Faster Theorem = f(a)

Then x-a is a factor of f(x)

inequalities true method is negating flips

<  flips to > and vice verca

when rearranging etc.

Index Laws  

a^n x a ^m = a^ n+m

a^n = 1   as  n always means 1   and 1x 1 = 1

Here their are 6 formats for index laws

Log Laws

In 1 = 0  is year 7

Here there is 6 In   as Log law examples to find in Log type question formats.

ie) In xy = In x + Iny

and

Inx/y = In x-Iny

In 1/x =  negative  - In x  

as it turns negative from moving from divide to the side of the = sign.

This is why worksheets are so important.

As reflecting y = x even can be tough to recognise sometimes.

Midpoint formula is  x^1 +x^2  /  2  see if they know this.

Find x  <-> y do they know they would need to rearrange

Reciprocal graphs

find y = k/x  find the graph

Reciprocal graphs

find y = -k/x   find the graph   (its opposite diagonals reciprocal to the one above

Reciprocal graphs

find y =  k/x^1   (it shows a symmetrical (upside down V above the x axis)

Reciprocal graph

find k/x-1    it shows a symmetrical V below x axis  so they reflect with the reciprocal above, one above.

Get them to draw it and make a game of it.

This sort of thing will help your kindergarten sit at table and draw and remember formula as its just y = k/x  etc.

Other functions such as Domain = input x  and Range = input y can be drawn out for the kindergarten child and cut out x and y's help him play games.

Nth route needs N

Such formula is   a^n = 1

^ this is a square so cna be shown   smaller number raised to n

like n²   so you cna also cut these out and make them interactive for your kindergarten child along with fractions and Surds for year 6.

The Units in books are around 200 - 235 for year 3-6

I would most certainly get at least 1/4 of these in worksheets and attempt 2 easy and 2 hard questions on each, then learn formulas and then do past papers and mock exams that show the answer to re correct and try again.

Such maths websites include fun mock exam tests answer given etc..

Copy and paste the formulas so you can help them.

IF you need more just ask me below and post request and i can try sending whole list for you. But you would have to do another question if the list is full where you can remind me here when I've responded same time

Take care.

Hope this helps.

Answer:

c

Step-by-step explanation:

Step-by-step explanation:

x=36/12

x=2

12x = 36

x = 36÷12

x = 3

Hope it helps......

To complete the sequence "7444> →→19-", we need to find the missing terms that fit the pattern established by the given numbers. Let's analyze the sequence and identify any discernible pattern or rule.

Looking at the sequence, we can observe that each number is decreasing by a certain value. In this case, the first number is 7444, and the second number is 19, indicating a decrease of 7425. Now, we need to continue this pattern.

To find the third missing term, we subtract 7425 from 19, resulting in -7406. Therefore, the third missing term is -7406

To find the fourth missing term, we subtract 7425 from -7406, resulting in -14831. Therefore, the fourth missing term is -14831.

To find the fifth missing term, we subtract 7425 from -14831, resulting in -22256. Therefore, the fifth missing term is -22256.

Therefore, the completed sequence is:

7444> →→19- → -7406 → -14831 → -22256

Each term in the sequence is obtained by subtracting 7425 from the previous term.

It's important to note that this solution assumes a linear pattern in which the same subtraction value is applied to each term. However, without additional context or information about the sequence, there could be alternative patterns or interpretations.

For more such questions on sequence.

https://brainly.com/question/7882626

#SPJ8

The smaller angle made by the two hands of the clock at 3 o'clock is 90 degrees.

A figure known as an angle is created by two rays or line segments that meet at a place known as the vertex of the angle. The sides or legs of the angle are other names for the rays or line segments.

To determine the smaller angle made by the two hands of a clock when it is 3 o'clock, we can use the following formula:

angle = |(11/2) * m - 30h|

where:

m is the number of minutes past the hour (in this case, since it is 3 o'clock, m = 0)

h is the hour (in this case, h = 3)

By using this formula, we get:

angle = |(11/2) * 0 - 30(3)| = |0 - 90| = 90

Therefore, the smaller angle made by the two hands of the clock at 3 o'clock is 90 degrees.

To know more about angle visit:

https://brainly.com/question/28451077

#SPJ1

Answer: 441

Step-by-step explanation:

\(7*(6+2)^2-3^2\)

\(7*8^2-3^2\)

\(7*64-9\)

\(448-9\)

441

The solution of the inequality 15n>8n-21 is given by, n<-3.

Inequality is a relation between two or more mathematical expression or quantities via unequal signs i.e. greater, less, greater or equal, less or equal, not equal.

Given that the inequality is 15n<8n-21

Solving the inequality we have,

15n<8n-21

15n-8n<8n-21-8n, subtracting from both sides

7n<-21

n<-3, dividing 7 from both sides

So the solution of the given inequality is, n<-3.

To know more about Inequality refer to:

https://brainly.com/question/24372553

#SPJ1

Answer:

(a)6 (b)3 (c)0.5

Step-by-step explanation:

Given a fair die with the numbers 1,2,3,4,5, or 6 on each of its faces.

(a)The sample space for the outcomes in this experiment is {1,2,3,4,5,6}

There are 6 outcomes in the sample space.

n(S)=6

(b)

Event A is the event of rolling an even number

Sample space of A = {2,4,6}

There are 3 outcomes in event A.

n(A)=3

(c)The probability of event A

\(P(A)=\dfrac{n(A)}{n(S)} =\dfrac{3}{6} =0.5\)

P(A) =0.5 is the probability that you choose an even number.

Answer:

Eduardo will get $4.03

Step-by-step explanation:

To solve this problem, first add 4.99 and 0.98 together, remember to line up the decimals

4.99

+ 0.98

-------------

5.97

Now take 5.97 from 10.00

first you can't take 7 from 0 so you take 1 from the tens place making 10.00 into 9.9 10, now you can take 7 from 10 which equals 3. Into the tenths place you can take 9 from 9 which is a 0. Lastly 9 - 5 is 4, adding the decimal back you get

10.00

- 05.97

--------------

$ 4.03

Answer:

\((a)\ g(x) = \frac{2}{3}(x+1)\)

\((b)\ h(y) = \frac{1}{3}[1 + 4y]\)

\((c)\) \(P(x>0.5) =\frac{5}{12}\)

Step-by-step explanation:

Given

\(f(x,y) = \left \{ {{\frac{2}{3}(x+2y)\ \ 0\le x \le 1,\ 0\le y\le 1} \right.\)

Solving (a): The marginal density of X

This is calculated as:

\(g(x) = \int\limits^{\infty}_{-\infty} {f(x,y)} \, dy\)

\(g(x) = \int\limits^{1}_{0} {\frac{2}{3}(x + 2y)} \, dy\)

\(g(x) = \frac{2}{3}\int\limits^{1}_{0} {(x + 2y)} \, dy\)

Integrate

\(g(x) = \frac{2}{3}(xy+y^2)|\limits^{1}_{0}\)

Substitute 1 and 0 for y

\(g(x) = \frac{2}{3}[(x*1+1^2) - (x*0 + 0^2)}\)

\(g(x) = \frac{2}{3}[(x+1)}\)

Solving (b): The marginal density of Y

This is calculated as:

\(h(y) = \int\limits^{\infty}_{-\infty} {f(x,y)} \, dx\)

\(h(y) = \int\limits^{1}_{0} {\frac{2}{3}(x + 2y)} \, dx\)

\(h(y) = \frac{2}{3}\int\limits^{1}_{0} {(x + 2y)} \, dx\)

Integrate

\(h(y) = \frac{2}{3}(\frac{x^2}{2} + 2xy)|\limits^{1}_{0}\)

Substitute 1 and 0 for x

\(h(y) = \frac{2}{3}[(\frac{1^2}{2} + 2y*1) - (\frac{0^2}{2} + 2y*0) ]\)

\(h(y) = \frac{2}{3}[(\frac{1}{2} + 2y)]\)

\(h(y) = \frac{1}{3}[1 + 4y]\)

Solving (c): The probability that the drive-through facility is busy less than one-half of the time.

This is represented as:

\(P(x>0.5)\)

The solution is as follows:

\(P(x>0.5) = P(0\le x\le 0.5,0\le y\le 1)\)

Represent as an integral

\(P(x>0.5) =\int\limits^1_0 \int\limits^{0.5}_0 {\frac{2}{3}(x + 2y)} \, dx dy\)

\(P(x>0.5) =\frac{2}{3}\int\limits^1_0 \int\limits^{0.5}_0 {(x + 2y)} \, dx dy\)

Integrate w.r.t. x

\(P(x>0.5) =\frac{2}{3}\int\limits^1_0 (\frac{x^2}{2} + 2xy) |^{0.5}_0\, dy\)

\(P(x>0.5) =\frac{2}{3}\int\limits^1_0 [(\frac{0.5^2}{2} + 2*0.5y) -(\frac{0^2}{2} + 2*0y)], dy\)

\(P(x>0.5) =\frac{2}{3}\int\limits^1_0 (0.125 + y), dy\)

\(P(x>0.5) =\frac{2}{3}(0.125y + \frac{y^2}{2})|^{1}_{0}\)

\(P(x>0.5) =\frac{2}{3}[(0.125*1 + \frac{1^2}{2}) - (0.125*0 + \frac{0^2}{2})]\)

\(P(x>0.5) =\frac{2}{3}[(0.125 + \frac{1}{2})]\)

\(P(x>0.5) =\frac{2}{3}[(0.125 + 0.5]\)

\(P(x>0.5) =\frac{2}{3} * 0.625\)

\(P(x>0.5) =\frac{2 * 0.625}{3}\)

\(P(x>0.5) =\frac{1.25}{3}\)

Express as a fraction, properly

\(P(x>0.5) =\frac{1.25*4}{3*4}\)

\(P(x>0.5) =\frac{5}{12}\)

The dimensions of the rectangular garden to maximize the area is length = width = 75 meters.

Let l be the length and w be the width of the rectangular garden.

We need to find the dimensions of the rectangular garden of greatest area that can be fenced off (all four sides) with 300 meters of fencing.

The perimeter of the  rectangular garden = 300 meters

We know that the perimeter of the rectangle =2(length + width)

300 = 2(l + w)

l + w = 150               .......(1)

Now, the maximum area of a  rectangular garden is when Length  = width

So, for equation 1

l + l = 150

l = 75 meters

So, w = 75 meters

And the area of the rectangular garden = length * width

                                                               = 75 * 75

                                                               = 5625 m²

So the maximum area of the  rectangular garden is 5625 m²

Therefore, the dimensions of the garden to maximize the area is length = width = 75 meters and maximum area is  5625 m²

Learn more about rectangles here:

brainly.com/question/16021628

#SPJ4

Answer:

f(x) = - 2x + 4

Step-by-step explanation:

Since we are only trying to move the graph up 3 units, the slope does not change. So, it would be -2.

We also know that the 1 in f(x)= -2x + 1 is the y-intercept (y=mx+b). But again, we are moving the graph 3 units up, so we have to add 3. That makes it 4 (3+1=4).

So, the new equation would be f(x) = -2x + 4

Step-by-step explanation:

it simply means that g(x) is f(x) just shifted 3 units upwards.

that means nothing else changes, only whatever y result f(x) produces is increased by 3.

so,

g(x) = f(x) + 3 = -2x + 1 + 3 = -2x + 4

therefore, as domain and range were the whole set of real numbers, the addition of 3 does not make any difference in relation to infinity. so, they remain unchanged.

the slope stays the same (g(x) is simply a parallel line to f(x)).

the y-intercept (the y-value when x = 0) also increases by 3, and is 4.

the x-intercept (the x-value when y = 0) changes :

0 = -2x + 4

2x = 4

x = 2

the x-intercept is 2.

Answer:

20%

Step-by-step explanation:

To answer this question we have to 5% of 400, this will give us the number of managers!

1) 5% of 400

This gives us the answer!

Have a lovely day :)