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3 years ago

I really need help some one please

Mathematics

1 answer:

Alika [10]3 years ago

7 0

The factorization of A is y = (x - 8)(x + 7).
The factorization of B is y = (x + 1)(x - 4)(x - 5)

In order to find these, you must first find where each graph crosses the x-axis. In the first problem it does so at 8 and -7. In order to find the correct parenthesis for those, you need to write it out as a statement and then solve for 0.

x = 8 ---> subtract 8 from both sides
x - 8 = 0
This means we use (x - 8) in our factorization.

You then need to repeat the process until you have all the pieces. In the second problem, there will be 3 instead of 2 since it crosses the axis 3 times.

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How do you write 0.8 recurring as a fraction?<br><br>please can i have an explanation aswell :)

monitta

Answer:

$\frac{8}{9}$

Step-by-step explanation:

we require 2 equations with the repeating digits placed after the decimal point.

let x = 0.888.. (1) ← multiply both sides by 10

10x = 8.888.. (2)

subtract (1) from (2) thus eliminating the repeating digits

9x = 8 ( divide both sides by 9 )

x = $\frac{8}{9}$

7 0

2 years ago

I need 4 more tryna go to sleep rn :/

GenaCL600 [577]

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

It is $y=2x+2$ because you should use $m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ then just plug it in using

(1, 4) and (-2, -2).

$\frac{4--2}{1--2} =\frac{6}{3} =2$

That eliminates everything except the second one and the third.

So now we would find the b in the equation $y=mx+b$

$y=mx+b\\4=2(1)+b\\4=2+b\\2=b\\b=2$

and that's all

5 0

3 years ago

What is the area of the polygon? And how to find it

KATRIN_1 [288]

Answer:

15 Square Units

Step-by-step explanation:

if area = length x width

you take the length of 5 and multiply it by the width 3

the expression would end up looking like 5 x 3 = 15 square units

Don't forget the label <3

7 0

3 years ago

Please complete the system of equations.

likoan [24]

Answer:

Step-by-step explanation:

Eliminate the y terms by adding the equations together:

-10y+9x = -9

10y+5x = -5

——————-

14x = -14

x = -1

y = 0

6 0

3 years ago

Do the scatter plot .........................

Nuetrik [128]

For this case we have the following table:
1 190
2 220
3 200
4 330
5 300
6 410
7 450
8 410
9 530
10 650
11 570
12 650
13 750
14 720
15 700
16 800
The scatter diagram shows that as the weeks increase, sales increase.
Answer:
See attached image.

4 0

4 years ago