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3 years ago

Please help i can’t do this

Mathematics

1 answer:

Furkat [3]3 years ago

6 0

Answer: A = -3, B = 1, and C = 19 OR A = 3, B= -1, C = -19 (look at the explaination)

Step-by-step explanation:

You will need to expand the equation given to you.

y-7 = 3(x+4)

y-7=3x+12

y- 7 + 7 = 3x + 12 +7

y = 3x + 19

-3x + y = 19

Therefore, A = -3, B = 1, and C = 19

But, you can also write it as:

y = 3x + 19

3x - y = -19

A = 3, B= -1, C = -19

So, I don't know what your teacher wants but both answers should be right.

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I need to find the means to MAD ratio for these two sets of numbers.....

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3 years ago

There are 15 pieces of fruit in a bowl and 6 of them are apples. What percentage of the pieces of fruit in the bowl are apples?

zavuch27 [327]

Answer:

40%

Step-by-step explanation:

Total amount is 15

6 out of the 15 amount are apples

Thus, 6/15 x 100 = 40%

You could ask yourself, what number do I multiply by 15 to get to 100?

Then, multiply the top (numerator) by it.

The value of the numerator will give you the final % (percentage) due to percentage being out of 100.

Hope this helps!

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3 years ago

Examine the system of equations. y = 4x + 8, y = 4x – 1 Which statements best describe the two expressions? Check all that apply

Lerok [7]

Answer:

The correct statements are as follows;

1. They have different y-intercepts

2. The substitution method results in false statement 8 = -1

3. There is no solution

Step-by-step explanation:

Here, we want to select the statement that best describes the equations

The equation for a straight line is generally;

y = mx + b

m is slope and b is the y-intercept

slope of both is same ; 4

So first assertion is wrong

they have different y-intercepts

First y-intercept is 8, second is -1

This is correct

The third statement is correct too

if we equated both y;

4x + 8 = 4x -1

We shall have 4x canceled out and left with 8 = -1

(8,-1) is not a solution

There is no solution is correct because after substituting, we have 8 = -1 which is not correct and also impossible

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3 years ago

The cartesian coordinates of a point are given. (a) (2, −2) (i) find polar coordinates (r, θ) of the point, where r > 0 and 0

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5 0

3 years ago

What is the area of this parallelogram? 44 cm² 55 cm² 99 cm² 220 cm²

Art [367]

Here, we can split this parallelogram into two triangles and one rectangle. The triangles are equal to each other so we can just find the area of the rectangle and the are of one triangle.

Triangle area formula: $a= \frac{1}{2} bh$ , where a = area, b=base, and h=height.

Plug in 5 for b and 11 for h:

$\frac{1}{2}*11*5 = \frac{55}{2}$
Multiply by 2!
 $\frac{55}{2} *2=55$

Rectangle area formula: a=bh, where a = area, b = base, and h = height.

Plug in 4 for b and 11 for h.

a = 4 x 11
a = 44

44+55 = 99

Area is 99 cm².

7 0

3 years ago

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