Help what's the answer,

Answer:

Step-by-step explanation:
Slope is gradient which is, change in y
                                              change in x
so, on the graph, change in y = 10-2.5 = 7.5
                              change in x = 5-0 =5
so, gradient is, 7.5/5
                     = 3/2

Answer:

40% ⋅ x = 35

x = 87.5

Step-by-step explanation:

To write an equation representing this situation, use the key words. 40% stays 40%. "Of" is the same as multiplication. "X" remains "x". "Is" is the same as equal to. 35 remains 35. So, the new equation you get is: 40% ⋅ x = 35.

To solve for "x", first turn the 40% into a decimal: 0.4. Now divide 0.4 from both sides to get: x = 87.5.

Note:

The dot "⋅", stands for the multiplication sign. I'm not using the "x" symbol for it because there is a variable x in the equation already.

Hope it helps!

Answer: Simplified answer: 14x 2−28x    Factor the expresion: 14x(x−2)

Step-by-step explanation: Simplified answer: Evaluate

(2x−4)(7x ′−6g−6)

Remove the parentheses

(2x−4)×7x

Multiply the terms

7x(2x−4)

Apply the distributive property

7x×2x−7x×4

Multiply the terms

14x 2−7x×4

Solution

14x2−28x

Answer:

27 min i think

Step-by-step explanation:

Answer: 9:35

Step-by-step explanation:

i think that's the right answer

The y-intercept of the line shown is (0,4).

The intersection of the graph of the function with the y-axis gives y-intercept of that function. The y-intercept is the value of y on the y-axis at which the considered function intersects it.

Assume that we've got: y = f(x)

At y-axis, we've got x = 0, so putting it will give us the y-intercept.

Thus, y-intercept of y = f(x) is y = f(0)

Given;

A line passes through the point -4 comma 1 and through the y-axis at 4.

Now,

y=mx+c

1=m*-4+c

Line passes through 4 at y-axis

(0,4)

Therefore, the y intercept will be (0,4).

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Answer:

1. b  2. b  3. c  4. a  5. c

Step-by-step explanation:

hope this helps! i can give an explanation if needed

Answer:

What he said

Step-by-step explanation:

Answer:

$595

Step-by-step explanation:

85x7=595

Answer:

I belive the total change is $595

Step-by-step explanation:

My explanation is that you take $85 and times it by 7

Answer:

KL = 16

Step-by-step explanation:

For this problem, JL is the sum of KL and JK.  So we can say this:

JK + KL = JL

( 3x + 6 ) + ( 5x + 6 ) = 28

8x + 12 = 28

8x = 16

x = 2

So, now we can find KL:

5x + 6 = ?

5(2) + 6 = ?

10 + 6 = ?

16 = ?

So the length of KL is 16.

Cheers.

The ratios of their perimeters and the ratios of their areas are 1) 3:1 and 9:1 and 2) 7:4 and 49:16.

Given the scale factor of two similar polygons, we need to find the ratio of their perimeters and the ratios of their areas,

To find the ratio of the perimeters of two similar polygons, we can simply write the scale factor as it is because the ratio of the perimeter is equal to the ration of the corresponding lengths.

1) So, perimeter = 3:1

The ratio of areas between two similar polygons is equal to the square of the scale factor.

Since the scale factor is 3:1, the ratio of their areas is:

(Ratio of areas) = (Scale factor)² = 9/1 = 9:1

Similarly,

2) Perimeter = 7:4

Area = 49/16

Hence the ratios of their perimeters and the ratios of their areas are 1) 3:1 and 9:1 and 2) 7:4 and 49:16.

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The position vector r(t) is given as r(t) = et² îĵ + ln(1 + 3t) k for part (a), and r(t) = at cos(3t) î + b sen³(t)ĵ + c cos³(t) k for part (b), where a, b, and c are constants.

In part (a), the position vector is defined in terms of exponential and logarithmic functions. The term et² represents exponential growth, where e is Euler's number and t is the independent variable. The term ln(1 + 3t) represents the natural logarithm function applied to the expression (1 + 3t), capturing the logarithmic relationship between t and the position vector in the k-direction.

In part (b), the position vector incorporates trigonometric functions. The term at cos(3t) represents the product of the constant a and the cosine function applied to the expression 3t, resulting in periodic oscillations along the î-direction. The term b sen³(t) represents the cube of the sine function applied to t, causing periodic oscillations along the ĵ-direction. Lastly, the term c cos³(t) represents the cube of the cosine function applied to t, causing periodic oscillations along the k-direction.

These parametric equations allow us to describe the position of a point in three-dimensional space as a function of time, capturing various behaviors such as exponential growth, logarithmic relationships, and periodic oscillations. The specific values of the constants a, b, and c will determine the precise shape and characteristics of the paths traced by the points over time.

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Answer:

2 x 7

Step-by-step explanation:

4 x 7 = 28

Since you want doubled, we have to half to find start.

28/2 = 14

Only solid equation that equals 14 is 2 x 7

And since 4 is a double of 2, the answer checks out

The multiplication fact that can be doubled to find 4 x 7 is

2 x 7.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

4 x 7 = 28

Now,

The multiplication of 2 x 7 = 14.

If 2 x 7 is double we get,

2 x (2 x 7) = 2 x 14 = 28

Thus,

The multiplication fact is 2 x 7.

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Answer:

10, and 400

Step-by-step explanation:

10x40=400

Answer:

Blank one: 10

Blank two: 400

Step-by-step explanation:

The point on the graph shows that Sarah makes $10 per hour. To find how much money she makes in 40 hours, we use the equation to get 10 x 40 = 400.

Answer-

Kai spends 8 hours 20 minutes in school.

Solution-

Let us assume, Kai spends x minutes in school.

Kai calculates that he spends 15% of a school day in science class and that is 75 minutes, i.e

\Rightarrow x\times \dfrac{15}{100}=75⇒x×

100

15

=75

\Rightarrow x=75\times \dfrac{100}{15}⇒x=75×

15

100

\Rightarrow x=\dfrac{7500}{15}⇒x=

15

7500

\Rightarrow x=500\ \text{minutes}⇒x=500 minutes

\Rightarrow x=\dfrac{500}{60}\ \text{hours}⇒x=

60

500

hours

\Rightarrow x=\dfrac{25}{3}\ \text{hours}⇒x=

3

25

hours

\Rightarrow x=8\dfrac{1}{3}\ \text{hours}⇒x=8

3

1

hours

Therefore, Kai spends 8 hours 20 minutes in school.

sana po nakatulong mwaps

Moe's present age = 32

Zach's present age = 24

Let Moe's present age be represented by m

Let Zach's present age be represented by z

Moe is 8 years older than Zach now

m = z + 8..........(1)

Twenty years ago, Moe's age would be m - 20

Twenty years ago, Zach's age would be z - 20

Twenty years ago, Moe's age was three times that of Zach

m - 20 = 3(z - 20)

m - 20 = 3z - 60

m = 3z - 60 + 20

m = 3z - 40..........(2)

Let equations (1) and (2) be equal to each other:

z + 8 = 3z - 40

3z - z = 8 + 40

2z = 48

z = 48 / 2

z = 24

Substitute the value of z into equation (1)

m = z + 8

m = 24 + 8

m = 32

Moe's present age = 32

Zach's present age = 24

Answer:

\(k = 3\)

Step-by-step explanation:

A function must put in a input to get that exact output.

This means that if we for example, put 8 in the function we must get out 2.

If we put in 3, we cant get 4 so

k=3 is the answer.

Answer:

32 square units

Hope it helps!!!

Answer:

y + 2 = -0.069(x-+5)

Step-by-step explanation:

SInce the two lines intersects, we will equate it

Multiply x + 3y = 0 by 4;

4x + 12y = 0

4x-4y-13 = 0,

Subtracts both

12y +4y + 13 = 0

16y = 13

y = 13/16

get x;

x + 3(13/16) = 0

x = -39/16

The point of intersection is (0.8, -2.4) and (-5,-2)

Get the equation;

m = y2-y1/x2-x1

m = -2+2.4/-5-0.8

m = 0.4/-5.8

m = -0.069

Get the equation;

y - y0 = m(x-x0)

y - (-2)= -0.069(x-(-5))

y + 2 = -0.069(x-+5)

The estimate of the no. of people to vote varies by 25% from the actual no. of voters turned out.

Finding the per cent variation of estimated votes from the actual turnout

The no. of people estimated to vote in the election = 7000

The actual no. of people who voted = 5600

A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol “%”.

∴ The per cent by which the estimate vary from the actual turnout is given by,

= [{7000 – 5600}/ {5600}]×100

= [1400/5600]×100

= 0.25×100

= 25%  

Therefore, the 25% of the estimate vary from the actual amount.

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Answer:

A. Yes

B. No

C. No

D. The graph of the equations is attached

x = 2

Step-by-step explanation:

A. Yes, she will get the same solution

Given the solution is based on the two solutions, the solution will be the same for all algebraic methods used

B. No, the answer in A does not change

A system of two equations in two unknowns with no solution is an inconsistent system of equations and there should be no solutions for all correct algebraic methods used

C. No, the answer in A does not change

If there are infinitely many solutions, there will be infinitely many solutions for all correct algebraic methods used

D. The graph of the equations;

y = 2·x + 4...(1) and y = 3·x + 2.....(2) is attached

Subtracting equation (1) from equation (2), we have;

3·x + 2 - (2·x + 4) = y - y = 0

x - 2 = 0

∴ x = 2

The graphs of the two equations also intersect at x = 2.

Answer:

\(m(\widehat{WXZ})\) = 160°

Step-by-step explanation:

By angle sum postulate,

m∠WYX + m∠XYZ = m∠WYZ

m∠WYZ = 50° + 30°

              = 80°

Since, inscribes angle (∠WYZ) = \(\frac{1}{2}\times (\text{Intercepted arc WXZ})\)

80° = \(\frac{1}{2}(\widehat{WXZ})\)

\(m(\widehat{WXZ})\) = 160°

Answer:

the answer is 45/100=9/50 according to my solution

The statement "A histogram with the hills to the far left means the image is overexposed" is not accurate. In fact, a histogram with the hills to the far left indicates that the image is underexposed, not overexposed.

A histogram is a graphical representation of the distribution of pixel values in an image. It displays the frequency of occurrence of different tonal values. The horizontal axis represents the tonal values, while the vertical axis represents the frequency or number of pixels.

When the hills of the histogram are concentrated towards the left side, it means that a significant portion of the image has darker or lower tonal values. This indicates an underexposed image, where the exposure settings were insufficient to capture enough light, resulting in a darker overall appearance.

Conversely, an overexposed image would have the hills of the histogram concentrated towards the right side, indicating that a significant portion of the image has brighter or higher tonal values.

Therefore, the correct interpretation is that a histogram with the hills to the far left means the image is underexposed, not overexposed.

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∫(1/f(x))dy = x + C, where C is the constant of integration.

To find the equation of a curve with a given slope passing through a point, we can use separation of variables to solve a differential equation. Let's denote the independent variable as x and the dependent variable as y. Suppose the slope of the curve at any point (x, y) is given by dy/dx = f(x), and we know that the curve passes through a specific point (x0, y0).

Using separation of variables, we can write the equation as dy/f(x) = dx. Integrating both sides gives us ∫(dy/f(x)) = ∫dx. This simplifies to ∫(1/f(x))dy = x + C, where C is the constant of integration.

Integrating both sides again will give us the equation of the curve. However, the specific form of the equation will depend on the function f(x). We need additional information or constraints on f(x) to determine its expression.

Therefore, the equation of the curve with a given slope passing through a point can be found by solving the differential equation using separation of variables and applying appropriate integration techniques with the given information.

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Answer:

a on edge 2021

Step-by-step explanation:

i took the test and got 100, hope this helps:)

Answer:

I think it is D

Step-by-step explanation:

Edge

The value of f(2) as calculated by the given function is 14.

Given function:-

\(f(x)=2x^3-2\)

We have to find the value of f(2).

Putting x = 2 in the given function, we get:-

\(f(2)=2(2)^3-2\)

We know that the cube of 2 is 8. Hence, we can write,

f(2) = 2*8 -2 = 16 - 2 = 14.

Function

A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range.

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Answer:

Step-by-step explanation:

The correct answer is C. The Mode.

Data is the collection of data term that is organized and formatted in a specific way it's typically contains fact observation or statistics that are collected through a process of measurement or research data set can be used to answer question and help make informed decision they can be used in a variety of ways such as to identify trends on cover patterns and make prediction.

This measure of centre is most meaningful when the data is qualitative because it shows the value that appears most frequently in the data set. The mode can be used to identify the most popular item or most commonly occurring outcome. It is the only measure of centre that can be used for qualitative data, as the other measures (mean, median, and range) require numerical data.

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