What is the reciprocal of −3 2/7?

a.−3 7/2

b.−2 3/7

c.−7 2/3

d.3 2/7

Answer:

In vertex form: y = 1(x - (-3))² + 7

Vertex: Minimum (-3, 7)

Explanation:

Vertex form: y = a(x - h)² + k

Completing square (rules) :

1st rule: (x + d)² = x² + 2dx + d²    and   (x - d)² = x² - 2dx + d²

2nd rule: x² + 2dx = (x + d)² - d²   and  x² - 2dx = (x - d)² - d²

Given equation:

y = x² + 6x + 16

y = x² + 2(3)x + 3² + 7

y = (x + 3)² + 7

Into vertex form:

y = 1(x - (-3))² + 7

From this identify:

a = 1, h = -3, k = 7

Solution, vertex of this equation: Minimum (-3, 7)

Answer: if it's the same question I just answered for you then I tried it again and im like 99% sure x= -2

Step-by-step explanation:

Answer:

8 cups of trail mix

Step-by-step explanation:

2 1/2 + 3 1/4 + 2 2/3= 8 5/12

1) Note that the area of the painting is 12√(30)x In²

2)  the number of times the graph of y = 5x² - 10x + 5 intersects the x-axis without graphing is 1.

1) The area of the painting is given by the product of its length and width. So, the expression for the area (A) of the rectangle in simplest form would be:

A = (length) x (width)

A = √(30)x x 36/√3

A = √(30)x x 36/(√(3) x √(3))

A = √(30)x x 36/3

A = 12√(30)x

Therefore, the area of the painting  is 12√(30)x In²

2)
To determine the number of times the graph of y = 5x² - 10x + 5 intersects the x-axis without graphing, you can use the discriminant formula from quadratic equations. The x-axis corresponds to y = 0, so you can set y = 0 in the equation and solve for x:

0 = 5x² - 10x + 5

Next, use the discriminant formula, which is b² - 4ac, where a = 5, b = -10, and c = 5, to find the number of real roots of the equation. If the discriminant is positive, the equation has two real roots and the graph intersects the x-axis twice. If the discriminant is zero, the equation has one real root and the graph intersects the x-axis once. If the discriminant is negative, the equation has no real roots and the graph does not intersect the x-axis.

In this case, the discriminant is (-10)² - 4(5)(5) = 0, which means the equation has one real root and the graph intersects the x-axis once. Therefore, the number of times the graph of y = 5x² - 10x + 5  intersects the x-axis without graphing is 1.

Learn more about graphing  at:

https://brainly.com/question/17267403

#SPJ1

Answer:

a soccer net with a negative slope

Step-by-step explanation:

Answer:

d) 7(30 + 9) = 7(30) + 7(9)

Step-by-step explanation:

Distributive method:

Here given:

Among the option's:

1st option (7 + 3) (7 + 9) is wrong, changes final answer.

2nd option (7 × 30) + 9 is wrong, changes final answer.

3rd option 39 × 7 shows commutative property of multiplication.

4th option show distributive method.

Answer:

"cake recipes" instead of "how to make a cake."

Answer:

sucks that I cant lol

Step-by-step explanation:

Answer:

Step-by-step explanation:

32

Answer: The answer is 3

Step-by-step explanation:

just do 236x3 next time. Have a good day!

Answer:

\(k \: = 4 \)

Step-by-step explanation:

Thanks alot

Answer: a) Surface Area : 488 \(cm^{2}\)

Volume : 672 \(cm^{3}\)

b) Surface Area

c) Volume

Step-by-step explanation:

The object given is a cuboid. A cuboid has 6 sides.

To calculate the surface area and volume, we need the dimensions of the cuboid which are the length(l), breadth(b), and height(h).

According to the image given, l = 14 cm, b = 8 cm, and h = 6 cm.

a) Surface Area:

The formula for the surface area of a cuboid is  = 2*((l*b)+(l*h)+(b*h))

Therefore, the surface area = 2*((14*8)+(14*6)+(8*6)) = 488 \(cm^{2}\)

The area is always denoted as \(cm^{2}\)

Volume:

The formula for volume of a cuboid is  = l*b*h

Therefore, the volume = 14*8*6 = 672 \(cm^{3}\)

The area is always denoted as \(cm^{3}\)

b) Plating is done to usually protect the surface area of an Object. Therefore the answer is Surface Area.

c) If the brick is made of concrete, it means that the whole space occupied by the brick consists of concrete. Therefore volume is the right option.

To learn more about surface area and volume:

https://brainly.com/question/13789496

Answer:

1. Volume: 672cm

   SA: 488cm

2. SA
3. Volume

Please give brainly!

Answer: 120 ways

Step-by-step explanation:

Number of people in baking club = 10

Number of people who make up an executive committee = 3

Number of committees which can be formed :

This is a combination problem:

nCr = n! / (n-r)! r!

n = 10 ; r = 3

10C3 = 10! / (10 - 3)! 3!

= 10! / 7! 3!

= ( 10 * 9 * 8) / 3 * 2 * 1

= 720 / 6

= 120 ways

Answer:

So, 6 feet is equal to 72 inches. You need 18 inches for one bracelet, so by dividing 72/18, you get 4. So, he can make 4 bracelets.

Answer:

So, 6 feet is equal to 72 inches. You need 18 inches for one bracelet, so by dividing 72/18, you get 4. So, he can make 4 bracelets.

Step-by-step explanation:

Answer:

1/2 half of them are blondies

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answer is 1/2 half of them are blondies

Answer:

y=-5x

Step-by-step explanation:

Hope this helps!

Brainliest if correct pls

Answer:

1. -8 - 15 = -8 + -15

2. 8 - (-15) = 8 + 15

3. -8 - (-15) = -8 + 15

4. 8 - 15 = 8 + (-15)

The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:

2/8 = j/18

This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:

2/8 = j/18

218 = 8j

36 = 8*j

j = 36/8

j = 4.5

Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.

Answer:

Step-by-step explanation
2 over 8 equals j over 18

This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.

So, the correct proportion is:

Answer:

no bro, sorry. even though I needed to I don't have it

Answer:

uh ma'am - you need help this totally make sense ^_^

Answer:

-r+65/60

hope it helps

This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:

x^2-2y=3 - (x-2y=3) => x^2-x=0

Then we can factor the resulting equation and find the values of x:

x^2-x=0 => x(x-1)=0 => x=0 or x=1

Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:

x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1

Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:

x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1

Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.

Answer:

of the First rectangle Is smaller than the second the factor Is greater than One , if the First and the second are the same the scale factor Is one, and of the First Is bigger than the second the factor Is less than one

so:

a greater

b greater

c less

D greater

e equal

f less

g equal

Answers in bold:

========================================================

Explanation:

We have these three rules for scale factors

With those rules in mind, we have enlargements for these transformations.

All of which represent some scale factor larger than 1. We don't have enough information to pinpoint what that scale factor would be.

In other words, if you go from small to big, then you apply some scale factor larger than 1 to enlarge the image.

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

We also have these reductions

This is where we go from big to small. The image shrinks and we use some scale factor between 0 and 1.

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

And finally we have these transformations in which the size of the image does not change. Therefore the scale factor is 1.

The order doesn't matter for this subset, but the order will matter for the other batches of transformations.

Answer:

Step-by-step explanation:

Scale Factor of Triangle STU to Triangle PQR  = 15 :  10 = 3 : 2

Scale Factor of Triangle PQR to Triangle STU = 2 : 3

Scale Factor of Trapezoid EFGH to Trapezoid JKLM = 5 : 10 =    1 : 2

Scale Factor of Trapezoid JKLM to Trapezoid EFGH = 2 : 1

Answer:

T F F T

Step-by-step explanation:

T - there are no green marbles

F - the majority of the marbles are yellow

F - nothing is for certain there's possibilities to pick the other 2 colours

T - there are few red marbles compared to the total of the others

Answer:

T, F, F, T

Step-by-step explanation:

1. There are no green marbles

2. more than half the marbles are yellow there is a high chance

3. Blue have quite a lot as well

4. there are only 2 red marbles very low chance

Answer:

The unit rate for the first station is 2.1. The unit rate for the second station is 2.19. The unit rate for the last station is 2.07.

Step-by-step explanation:

25.20 divided by 12 is 2.1

19.71 divided by 9 is 2.19

33.12 divided by 16 is 2.07

Answer:

D) 27

Step-by-step explanation:

It's a rectangle so the opposite sides are congruent to each other.

Long Side:

6x + 6 = 42

subtract 6 from both sides:

6x = 36

divide both sides by 6:

x = 6

Short Side:

5y + 5 = 30

subtract 5 from both sides:

5y = 25

divide both sides by 5:

y = 5

The Equation:

2x + 3y

substitute in the values:

2(6) + 3(5)

do the multiplication:

12 + 15

add the values together:

27

Answer:

1/5 or 20%

Step-by-step explanation:

Probability = favorable outcomes

                   total num. of outcomes

Probability =  2

                      10

Find the GCF, 2.

2 ÷ 2 = 1

10 ÷ 2 = 5

1/5

sorry if it's wrong

Answer:

The probability of choosing a green shirt is 20%=1/5=.2

Step-by-step explanation:

find the total amount = 10

Find the total of question (probability of choosing green) = 2

set as a fraction:

Numerator = amount needed (2)

Denominator = all things/objects involved (10)

PS*

With probability there is a good chance the answer is going to be less than 1 or 100%, knowing that can help to tell which number goes in what place of the fraction

ex:

10/2=5=500% (this can't be the answer)

So Flip it 2/10=.2=20% (This seems more of a reasonable answer)