kevin has a ratio of 2 wrong answers to 7 correct answers on his math test. If he got 6 questions ewrong then how many did he answr correctly

Answer: +5

Step-by-step explanation:

-6 + 5 = -1

-1 + 5 = 4

4 + 5 = 9

9 + 5 = 14

A relation represents a function when each input value is mapped to a single output value.

On a graph, a function is represented if the graph contains no vertical aligned points, that is, if there are no values of x at which we could trace a vertical line that would cross the graph of the function more than once.

Tracing a vertical line for any x > -3, the vertical line would cross the graph at two points, meaning that the relation is not a function.

As for the domain and the range, we have that:

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Answer: I = $ 500.00

Step-by-step explanation:

Hello Microplays!

To solve this equation. First, convert R percent to r a decimal r = R/100 2.5%/100 = 0.025 per year, then, solving our equation

I = 5000 × 0.025 × 4

I = 5000 × 0.10

I = $ 500.00

The simple interest accumulated on a principal of $5,000.00 at a rate of 2.5% per year for 4 years is $500.00.

Hopefully this helps, and hope this is correct.

Answer:

Step-by-step explanation:

I can't give answer you by step to step cause I can't make any symbols through my computer.

Answer:

4796204839. Just use a calculator

Answer: 4796204839

Step-by-step explanation: use calculator

Answer:

\(t\leq 6.25\) in decimal form

\(t\leq \frac{25}{4}\) in fractional form

Step-by-step explanation:

-4 times a number t is greater than or equal to - 25. This is what they mean by at least.

\(-4t \geq -25\)

Solve for t.

\(t\leq \frac{-25}{-4}\) , we flip the inequality because we are dividing by a negative number.

\(t\leq 6.25\)

Hey there! :)

Answer:

y = 7/2x - 11

Step-by-step explanation:

Use the slope formula to calculate the slope:

\(m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}\)

Plug in the coordinates:

\(m = \frac{10-(-4)}{6-2}\)

Simplify:

\(m= \frac{14}{4}\)

\(m = \frac{7}{2}\)

Slope-intercept form is y = mx + b. Plug in the slope, as well as the coordinates of a point given to solve for b:

10 = 7/2(6) + b

10 = 42/2 + b

10 = 21 + b

10 - 21 = b

b = -11.

Write the equation:

y = 7/2x - 11

Answer:

180 square inches

5 x 6 = 32.5

32.5 x 4 = 130

5 x 5 = 25

25 x 2 = 50

130 + 50 = 180

Step-by-step explanation:

first find the area of all the sides (length times width)

width = 5

length = 6.5

5 x 6.5 = 32.5

32.5 is the area for one side. there are 4 others identical to it

32.5 (one side) x 4 (the amount of sides identical) = 130

then you need to find the area for the bottom/top side

5 = length

5= width

5(L) x 5(W) = 25

25 is the area for the bottom. the top is identical to it

25(bottom side) x 2 (the amount of sides identical)

now add all of the sides up

130 + 50 = 180

The equation of a line that passes through points (2,5) and (4,3) is

y = -x+7.

Finding the equation of a line:

First, we need to find out the slope for the given points.

(X1,Y1) = (2,5)

(X2,Y2) = (4,3)

formula for slope(m) = \(\frac{Y2 - Y1}{X2 - X1}\)

substitute the points in the above formula

\(\frac{3 - 5}{4 - 2}\) = \(\frac{-2}{2}\)

\(\frac{-2}{2}\) = -1

slope for the given points(m) = -1.

m = -1

The equation of a line is y-y1 = m(x-x1), where x and y are variables.

substituting the values in the above equation then :

y-5 = -1(x-2)

y-5 = -x+2

y+x = 2+5

x+y = 7

y = -x+7

Therefore, the equation of the line passing through the points (2,5) and (4,3) is y = -x+7

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Answer: 4 units

Step-by-step explanation:

Answer:

x=3.536, y=7.356

Step-by-step explanation:

The point of intersection can be found out be equating the equations x^2+(y-4)^2=25 and y=x+4. Solving it we will get x=3.536, y=7.356

Answer:

4 scoops

Explanation:

Madelyn baked 18 cookies with 3 scoops of flour.

First, find the unit rate.

Therefore:

Madelyn needs 4 scoops in order to bake 24 cookies.

The solution to the equation is x = 10 or x = -2.

An equation refers to a mathematical expression showing that two expressions are equal.

It must have variables (e.g. a, c, x, y), constants (like 1, 13, 50, etc), and mathematical operations (like +, -, *, /).

To solve for x, we shall start with the given equation:

x + 6 = √(2x + 29) + 9

Subtract 9 from both sides:

x - 3 = √(2x + 29)

Square both sides:

\((x - 3)^2\) = 2x + 29

Expand the left side:

\(x^2\) - 6x + 9 = 2x + 29

We then subtract 2x and 9 from both sides:

\(x^2\) - 8x - 20 = 0

Next, actor the quadratic equation:

(x - 10)(x + 2) = 0

Therefore, the equation x = 10 or x = -2

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I calculated this myself, and I got the answer 3/4, but I'm trash at explaining long problems. So here is what I found to help explain it. It's not a link.

"If (p, r) lies on the line y = x + b, then

r = p + b…. (1)

If (2p, 5r) lies on the line y = 2x + b, then

5r = 2(2p) + b

or 5r = 4p + b…. (2)

Subtracting equation (1) from (2), we get

5r - r = 4p + b - p - b

4r = 3p or r/p = 3/4"

Since I don't believe in plagiarism here's the person who is a life saver at explaining things.

(Mohammad Faizan)

PS. I really did try to explain it myself, only to give myself a headache, so please don't be mad and report me. I only wanted to help.

Answer:

a

Step-by-step explanation:

\(-21x^{2}-588\)

let me know if anything is unclear, I'm happy to help!

Answer:

  (b)  -4.5

Step-by-step explanation:

Choosing the correct answer here is not the same as knowing what the correct value is.

You know that √30 < √100 = 10, so the sum must be negative. That is, 10 subtracted from a positive number less than 10 will give a negative result.

You know that 25 < 30 < 36, so √25 < √30 <√36. That is, √30 will be between 5 and 6. If we say √30 ≈ 5.5, then the sum is ...

  -10 +√30 ≈ -10 +5.5 = -4.5

__

Additional comment

Of course, a calculator can tell you the value to the desired precision.

Answer:

it is greater than 0 but less than 1/2

Step-by-step explanation:

to compare changing fraction into decimal is the simplest way.

so 4/10=0.4

1/2=0.5

ya 0.4 is greater than 0 because it is 0.4 there is four , and it is less than 0.5 because 4 is less than 5:- to compare decimals we should only see the number after the decimal of the numbers if only the numbers before decimals are the same.

hope it helps

for any question comment me ❤❤

Answer:

the correct answer is O. x ≤ 1

Step-by-step explanation:

the rest are wrong because of the equal to sign in inequalities

Therefore,  one of the rectangle braces measures 137.3 cm to the closest tenth of a centimetre.

A rectangle is a rectangle with four perpendicularly in the Euclidean plane. It is also known as an apparent equal-sided rectangle or an equiangular parallelogram. Another option for the trapezoid is a straight angle. A square has four edges that are the same length. Quadrilaterals that are rectangular have four identical sides and 4 90° edges. As a result, it is sometimes referred to as a "rectangular trapezoid".

Here,

the vertical brace serves as the hypotenuse of a right triangle, which has the bookcase's sides serving as its legs. The diagonal brace's length can be determined as follows:

length of diagonal brace

=> √(length² + height²)

When we enter the numbers from the problem, we obtain:

length of diagonal brace

= >√(115² + 76²) ≈ 137.3 cm

Using the closest tenth of a centimetre as a guide, we obtain:

diagonal brace length: 137.3 centimetres

As a result, one of the braces measures 137.3 cm to the closest tenth of a centimetre.

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Answer:

Straight angle

<----------------------------->

You can determine if an angle is a straight angle only if it is 180 degrees. You can also draw it by drawing a straight line and drawing an arrow facing outward at each end.

The value of square root of x + y squared + z squared is 30

x = 2, y = 3 and z = -5

\(( \sqrt{x + y} )^{2} + z ^{2} \)

substitute the value of x, y and z

\( = ( \sqrt{2 + 3} )^{2} + - 5 ^{2} \)

simplify the square root and square

\( = (2 + 3) + 25\)

\( = 5 + 25\)

\( = 30\)

Ultimately, x + y squared + z squared is 30

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Answer:

The answer is 1800!

Step-by-step explanation:

Answer:

the answer is 1

Step-by-step explanation:

3/12+3/4

1/4+3/4

1+3/4

4/4

1

Answer:

a=10

b=6

Step-by-step explanation:

add 2 to 8, to get a, then subtract 4 from 10 to get b

Answer:

10 and 6

Step-by-step explanation:

Answer:

c = 7

Step-by-step explanation:

6c = 7c - 7

Subtract 6c to both sides

0 = c - 7

Add 7 to both sides

c = 7

Answer:

c = 7

Step-by-step explanation:

Step 1: Subtract 7c from both sides.

6c − 7c = 7c − 7 − 7c

−c = −7

Step 2: Divide both sides by -1.

-c/-1 = -7/-1

c = 7

Answer:

a. 0.36 = 36% probability that a movie is either a comedy or produced by Warner Bros.

b. 0.2308 = 23.08% probability that a Warner Bros movie is a comedy

c. 0.1154 = 11.54% probability that a comedy has Warner Bros as its producer

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

\(P(B|A) = \frac{P(A \cap B)}{P(A)}\)

In which

P(B|A) is the probability of event B happening, given that A happened.

\(P(A \cap B)\) is the probability of both A and B happening.

P(A) is the probability of A happening.

a. What is the probability that a movie is either a comedy or produced by Warner Bros?

We solve this question treating these events as Venn sets.

I am going to say that:

Set A: Movie is a comedy.

Set B: Movie is produced by Warner Bros.

26% of movies coming out of Hollywood are comedies

This means that\(P(A) = 0.26\)

Warner Bros has been the lead studio for about 13% of recent movies

This means that \(P(B) = 0.13\)

3% of recent movies are comedies from Warner Bros.

This means that \(P(A \cap B) = 0.03\)

The desired probability is:

\(P(A \cup B) = P(A) + P(B) - P(A \cap B) = 0.26 + 0.13 - 0.03 = 0.36\)

0.36 = 36% probability that a movie is either a comedy or produced by Warner Bros.

b. What is the probability that a Warner Bros movie is a comedy?

Conditional probability, in which

Event A: Produced by Warner Bros

Event B: Comedy

Warner Bros has been the lead studio for about 13% of recent movies

This means that \(P(A) = 0.13\)

3% of recent movies are comedies from Warner Bros.

This means that \(P(A \cap B) = 0.03\)

The desired probability is:

\(P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.03}{0.13} = 0.2308\)

0.2308 = 23.08% probability that a Warner Bros movie is a comedy.

c. What is the probability that a comedy has Warner Bros as its producer?

Now,

Event A: Comedy

Event B: Warner Bros as its producer.

About 26% of movies coming out of Hollywood are comedies

This means that \(P(A) = 0.26\)

3% of recent movies are comedies from Warner Bros.

This means that \(P(A \cap B) = 0.03\)

The desired probability is:

\(P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.03}{0.26} = 0.1154\)

0.1154 = 11.54% probability that a comedy has Warner Bros as its producer

The graph of the function \(f(x) = (9/4)x^2\) is a symmetric upward-opening parabola.

Overall, the graph represents a quadratic function with a positive leading coefficient, resulting in an upward-opening parabolic curve. The graph has been attached.

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