Answer:
the answer is by making this question make sense and less confusing
Step-by-step explanation:
Is 89/100 terminating or repeating
Answer:
Terminating
Step-by-step explanation:
Answer:
Terminating
Step-by-step explanation:
it doesn't repeat bc 89/100 = 0.89
Julia can swim 8 km/hr in still water. She attempts to head straight east across a river flowing south at 3 km/hr. What is the magnitude and direction of Julia's velocity.
To solve this problem, we need to use vector addition to find the resultant velocity of Julia.
Let's assume that the east direction is the positive x-axis and the south direction is the negative y-axis.
The velocity of Julia in still water is 8 km/hr in the positive x-axis direction.
The velocity of the river is 3 km/hr in the negative y-axis direction.
To find the magnitude and direction of Julia's velocity, we need to find the resultant velocity vector, which is the vector sum of her velocity in still water and the velocity of the river.
Using the Pythagorean theorem, the magnitude of the resultant velocity can be calculated as:
|V| = √(Vx² + Vy²)
where Vx is the x-component of the resultant velocity and is equal to Julia's velocity in still water, and Vy is the y-component of the resultant velocity and is equal to the velocity of the river.
Vx = 8 km/hr
Vy = -3 km/hr
|V| = √(8² + (-3)²) = √(64 + 9) = √73 km/hr
The direction of the resultant velocity can be calculated as:
θ = tan⁻¹(Vy / Vx)
θ = tan⁻¹(-3 / 8) = -20.56°
The negative sign indicates that the resultant velocity vector makes an angle of 20.56° below the positive x-axis (east direction).
Therefore, the magnitude of Julia's velocity is approximately 8.54 km/hr, and the direction of her velocity is 20.56° below the positive x-axis (east direction).
(Solve the problem down below & simplify your answer. Round the final answer to 3 decimal places as needed.)
SOLUTION:
Step 1:
In this question, we are given the following:
Step 2:
The details of the solution are as follows:
CONCLUSION:
The value of x =
\(40.\text{ 243 \lparen correct to 3 decimal places\rparen}\)
Jeffrey by 203 sheets of stickers each sheet has a dozen stickers he gave away 907 stickers to his friends and family on Valentine’s Day how many stickers does Jeffrey have remaining
Answer:
1529
Step-by-step explanation:
203*12
2436-903
1529
Answer:
1529 stickers left
Step-by-step explanation:
203 × 12 = 2436
2436 - 907 = 1529
Which function will cross the y-axis at (0, 7)?
Oy=x+7
Oy=x-7
0y=x+5
Oy=7x
The value of function which cross the y-axis at point (0, 7) will be;
⇒ y = x + 7
What is substitution method?To find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.
Given that;
The point which cross the function = (0, 7)
Now,
Since, The point which cross the function = (0, 7)
Hence, The point must be satisfy the function.
By option (1);
⇒ y = x + 7
Put (x, y) = (0, 7)
⇒ 7 = 0 + 7
⇒ 7 = 7
Thus, The correct function which passes through the point (0, 7) is,
⇒ y = x + 7
Option (i) is true.
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In triangle ABC, AB = 6, BC = 8, and angle ABC = 90 degrees. Find the area of triangle ABC.
Answer:
24
Step-by-step explanation:
The formula for area of any triangle is (length * width) * 1/2. This makes the angle of 90 degrees irrelevant.
6 x 8 = 48
48 / 2 = 24
find the value of this expression if x=6 and y=5
xy/7
Answer:
4 2/7
Hope this helps and have a nice day!!
A teacher was given a bushel of apples to split amongst her students. Before splitting up the apples, the teacher took 2 for herself. She then split the apples evenly among her 18 students, and each student received 3 apples.
How many apples did the bushel contain?
Answer:
56
Step-by-step explanation:
18x3=54
54+2(which she took) =56
Which of the hypothesis tests listed below is a left-tailed test? Select all correct answers. Select all that apply: H0:μ=18, Ha:μ<18 H0:μ=19.3, Ha:μ>19.3 H0:μ=8, Ha:μ≠8 H0:μ=11.3, Ha:μ<11.3 H0:μ=3.7, Ha:μ<3.7
Answer:
H0:μ=18, Ha:μ<18
H0:μ=11.3, Ha:μ<11.3
H0:μ=3.7, Ha:μ<3.7
Step-by-step explanation:
A left tailed test is a type of test usually taken from the alternative hypothesis that includes only one of either the less than or greater than options and not both.
A left tailed test corresponds with the less than option and in this case study, the left tailed test are:
H0:μ=18, Ha:μ<18
H0:μ=11.3, Ha:μ<11.3
H0:μ=3.7, Ha:μ<3.7
If f(x) = x² - 7x + k and f(k) = -9, then the value of f(-1) is
(A) -9
(B) -3
(C) 3
(D) 11
Answer:
D.) 11
Step-by-step explanation:
-9=-k^2-7k+k Plugging in k for x
-9=k^2-6k Combine like terms
0=k^2-6k+9 Add 9 to both sides
0=(k-3)(k-3) Factor
k=3
The equation is now
f(x)=x^2-7x+3
so
f(-1)=(-1)^2-7(-1)+3
f(-1)=1+7+3
f(-1)=11
which statement best describes the end behavior of the following function? F(x)=2x^4-x^3+5x-9
Here we have a polynomial of even degree with positive leading coefficient, so the end behavior is:
as x → ∞, f(x) → ∞
as x → -∞, f(x) → ∞
How is the end behavior of F(x)?
Here we have the function:
F(x) = 2x^4 - x^3 + 5x - 9
For any polynomial of even degree, we will have the same end behavior in both ends of the domain.
If the leading coefficient is positive, in both ends the function will tend to infinity.
If the leading coefficient is negative, in both ends the function will tend to negative infinity.
In the case of our function:
F(x) = 2*x^4 - x^3 + 5x - 9
We can see that the leading coefficient is 2, so it is positive, which means that the end behavior is:
as x → ∞, f(x) → ∞
as x → -∞, f(x) → ∞
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Help pleasee
I'm doing homework and i cannot understand this one and it's due soon
Answer:
2001.19
Step-by-step explanation:
V=πr^2h
π×7^2×13=2001.19
What are three consecutive multiples of 3 if 2/3
of the sum of the first
two numbers is 1 greater than the third number?
The three consecutive multiples of 3 are 15, 18 and 21
To solve this problem
First, let's determine three successive multiples of 3:
The subsequent two would be "x+3" and "x+6" if we call the initial number "x".
Since we are aware that the third number (x+6) is one more than the first two numbers (x + x+3), we can write the following equation:
2/3(x + x+3) = (x+6) + 1
Simplifying this equation, we get:
2/3(2x+3) = x+7
Multiplying both sides by 3, we get:
2(2x+3) = 3(x+7)
Expanding and simplifying, we get:
4x + 6 = 3x + 21
Subtracting 3x and 6 from both sides, we get:
x = 15
Therefore, the three consecutive multiples of 3 are 15, 18 and 21
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The table shows how many miles Jack ran per week for weeks one through nine.Question:a. Use the table to plot the points.b. Describe the correlation, including whether it is strong or weak.c. Draw a line of best fit.d. Write the equation of a line of best fit in slope-intercept form.e. Using the line of best fit, estimate how may miles Jack ran the 10th week; show work.f. During which week would you expect Jack to run a full marathon, 26.3 miles? Do you think that you should round up or down to the nearest week? Why?
Answer:can you show a picture of it??
Step-by-step explanation:
HELP! I NEED HELP ASAP PLEASE!
Answer: False, False, True, False, True
Step-by-step explanation: JUST DO IT! MAKE YOUR DREAMS COME TRUE!
Read the information in the box below.
Last year during the hurricane season, the amount of rain that fell on the Texas Gulf Coast in October was 14 inches, which was 312times more than the rainfall during September of the same year. How much rain fell during the month of September?
Rebecca tried to solve the problem but made a mistake in her calculations. You must analyze Rebecca's work, identify the error, and then correctly solve the problem. Then, create a model to justify your thinking.
Rebecca's Math Calculations
Step 1: 14×312
Step 2: 141×72
Step 3: 982=49
Solution: In September, 49 inches of rain fell.
Be sure to –
Identify the error that the student made
Answer the question prompt
Create a pictorial model that represents the problem situation and justifies your identification of the error and its solution
Explain how the model justifies the identified error and how to correct it
Answer:
4 inches
Step-by-step explanation:
Given that :
Amount of Rainfall in October = 14 inches
Amount of Rainfall in October = 3 1/2 times more than Rainfall during September
How much rain fell.during September :
The problem is a division problem ;
Since the amount of Rainfall in October is greater, then obtaining the amount of Rainfall in September requires dividing The amount of Rainfall in October by the number of times it is more than the September rainfall;
If multiplication is applied, then tbe value obtained will be greater than 14 inches. Which makes no sense since, the Rainfall in October is much greater than that in September.
14 inches ÷ 3 1/2
14 ÷ 7/2
14 * 2 / 7
= 28 / 7
= 4 inches
Hence, the amount of Rainfall in September is 4 inches
Answer:
46
Step-by-step explanation:
you have a recipe that indicates to use 2 parts of milk for every 7 parts of flour. You use 8 cups of milk. How much flour do you need?
Answer:
28
Step-by-step explanation:
Which equation is true?
An equation which is true include the following: A. 4 × n × n × n × n = 4n⁴.
What is an exponent?In Mathematics, an exponent is a mathematical operation that is typically used in conjunction with an algebraic expression in order to raise a quantity to the power of another.
This ultimately implies that, an exponent is represented by the following mathematical expression;
bⁿ
Where:
the variables b and n are numerical values (numbers) or an algebraic expression.n is referred to as a superscript or power.By applying the multiplication law of exponents for powers to each of the expressions, we have the following:
4 × n × n × n × n = 4n⁴
4 × n⁴ = 4n⁴
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"Seven more than three-fourths of a number is no less than 31."
If anyone wants to help<3
Answer:
7+3/4x >= 31
Step-by-step explanation:
7 more = +7
three - fourths of a number = 3/4 x
no less than = >= (more than or equal to sign)
Answer:
7+3/4x >= 31
Step-by-step explanation: 7 more = +7
three - fourths of a number = 3/4 x
no less than = >= (more than or equal to sign)
95 divided by 60 step by step
9 ft
4.7 ft
6.5 ft
6.5 ft
Find the area of the triangle.
Answer: 21.15 ft²
Step-by-step explanation:
We can use the formula for the area of a triangle:
(b×h)/2
In this case, the base is 9 and the height is 4.7.
So, we substitute the variables with the numbers in this problem.
(9 × 4.7)/2
9 × 4.7 = 42.3
42.3/2 = 21.15
So, our final answer is 21.15 ft²
Find what minimum population size you need to have if you have a 99% confidence, 100 standard deviation and want a size 3 margin of error
A minimum population size of approximately 7373 to achieve a 99% confidence interval with a margin of error of 3 and a known standard deviation of 100.
How to calculate the minimum population size?To calculate the minimum population size required to achieve a 99% confidence interval with a margin of error of 3 and a known standard deviation of 100, we can use the following formula:
n = [(z-value × SD) / ME]²
Where:
n = the minimum sample size required
z-value = the critical value for the desired confidence level (99% in this case)
SD = the known standard deviation (100 in this case)
ME = the desired margin of error (3 in this case)
First, we need to determine the z-value for a 99% confidence level. Using a standard normal distribution table, we find that the z-value for a 99% confidence level is approximately 2.576.
Substituting the values into the formula, we get:
n = [(2.576 × 100) / 3]²
Simplifying this expression, we get:
n = 7373.08
Therefore, we would need a minimum population size of approximately 7373.
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CF AND AH ARE SKEW PERPENDICULAR PARALLEL
Reason: The two line segments CF and AH point in the same direction, and they never intersect. Therefore, we consider them parallel.
Skew lines are ones that point in different directions. An example of a pair of skew lines would be AB and DE. Skew lines never intersect, but we don't consider them parallel.
Find the sum. Write your answer in simplest form. 1 1/2 + 2 3/10
Answer:
\( = 3 \frac{4}{5} \\ \)
Step-by-step explanation:
\( 1\frac{1}{2} + 2 \frac{3}{10} \\ \frac{3}{2} + \frac{23}{10} \\ \frac{15 + 23}{10} \\ = \frac{38}{10} \\ = 3 \frac{8}{10 } \\ = 3 \frac{4}{5} \)
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brainliest appreciated
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Golf Strokes An Internet site compares the strokes per round for two professional golfers. Which golfer is more consistent: Player A with mu = 71.5 strokes and o = 2.3 strokes, or Player B with mu 70.1 strokes and o = 1.2 strokes? Explain your reasoning.
Answer:
Player B
Step-by-step explanation:
Player B is more consistent because their sample standard deviation of \(\sigma=1.2\) is less than that of Player A's sample standard deviation of \(\sigma=2.3\), so it creates less variance from Player B's mean number of strokes and has more consistency.
please help asap!! What is the measure of angle A?
Hint: Angle A and the 65° angle are vertical angles.
Answer:
65
Step-by-step explanation:
because it is vertically opposite angles
5.3 MATHEMATICS HOLIDAY PACKAGE-TERM 2(2023) Instructions: Attempt ALL items 1. Your family has seven siblings; peter, John, Sarah, Joy, Ali, Mary and Ivan. There is an interval of 2 years between the ages of the children from Ivan to peter. Ivan is three years old. Task: Using an arrow diagram, explain the information about your family.
Complete this sequence of numbers such that the difference between any two adjacent numbers is the same : 3/k, _, _, 9/2k.
The completed sequence is: 3/k, 3/k, 3/k, 9/2k.To complete the sequence of numbers with a constant difference between adjacent numbers, we can calculate the common difference by subtracting the first term from the second term.
Let's denote the missing terms as A and B.
The given sequence is: 3/k, A, B, 9/2k.
The common difference can be found by subtracting 3/k from A or B. Therefore:
A - 3/k = B - A = 9/2k - B.
To simplify, we can equate the two expressions for the common difference:
A - 3/k = 9/2k - B.
Next, we can solve for A and B using this equation.
Adding 3/k to both sides gives:
A = 3/k + 9/2k - B.
Now, we can substitute the value of A into the equation:
3/k + 9/2k - B - 3/k = 9/2k - B.
Simplifying further, we have:
9/2k - 3/k = 9/2k - B.
Cancelling out the common terms, we find:
-3/k = -B.
Multiplying both sides by -1, we get:
3/k = B.
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Solve the equation below for x by graphing
3x =8_2x
The solution to the equation 3x = 8 - 2x is x = 1.6.
To solve the equation 3x = 8 - 2x by graphing, we can plot the two sides of the equation as functions of x and find the point(s) where they intersect. Here's a step-by-step explanation:
Express the equation in the form of y = f(x). Rearrange the equation:
3x + 2x = 8
5x = 8
x = 8/5 or 1.6
Graph the functions y = 3x and y = 8 - 2x on the same coordinate plane. The line represented by y = 3x is upward sloping, and the line represented by y = 8 - 2x is downward sloping.
Plot the points (1.6, 3(1.6)) and (1.6, 8 - 2(1.6)) on the graph.
The point of intersection represents the solution to the equation. In this case, the lines intersect at (1.6, 4.8).
Therefore, the solution to the equation 3x = 8 - 2x is x = 1.6.
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Pls help I need a good grade
Answer:
y=3/2x
Step-by-step explanation:
Slope is 3/2 and starts at the origin.