All categories

3 years ago

The answer is is 26, -44, but i dont understand how to solve it. can you explain?

Mathematics

1 answer:

Anna [14]3 years ago

4 0

║a+9║/7=5
you multiply 7 on both sides which cancel out 7.
now it ║a=9║=35
and now it would be a+9=35 and a+9=-35 then solve it.
35-9 and 9-(-35)= 26 and -44
hope this helped!

You might be interested in

There are 276 calories in 6 ounces of chicken. How many calories are in 1 pound of chicken

Mandarinka [93]

There would be 46 calories in one pound of chicken.

Just divide 276 and 6.

Hope I helped. :)

5 0

3 years ago

Read 2 more answers

3)What is the slope of the equation<br> below?<br> y=-*-7

ohaa [14]

If it’s blank and just a negative sign the answer should be -1

5 0

3 years ago

Read 2 more answers

HELLPPP ASAP PLEASEEE!!!

irina1246 [14]

Answer:

angle G = 64.9 is because the sum of interior angle is 180

7 0

3 years ago

Complete the steps to solve the polynomial equation x3 – 21x = –20. According to the rational root theorem, which number is a po

jeka94

Answer:

Zeroes : 1, 4 and -5.

Potential roots: $\pm 1, \pm 2, \pm 4, \pm 5, \pm 10, \pm 20$ .

Step-by-step explanation:

The given equation is

$x^3-21x=-20$

It can be written as

$x^3+0x^2-21x+20=0$

Splitting the middle terms, we get

$x^3-x^2+x^2-x-20x+20=0$

$x^2(x-1)+x(x-1)-20(x-1)=0$

$(x-1)(x^2+x-20)=0$

Splitting the middle terms, we get

$(x-1)(x^2+5x-4x-20)=0$

$(x-1)(x(x+5)-4(x+5))=0$

$(x-1)(x+5)(x-4)=0$

Using zero product property, we get

$x-1=0\Rightarrow x=1$

$x-4=0\Rightarrow x=4$

$x+5=0\Rightarrow x=-5$

Therefore, the zeroes of the equation are 1, 4 and -5.

According to rational root theorem, the potential root of the polynomial are

$x=\dfrac{\text{Factor of constant}}{\text{Factor of leading coefficient}}$

Constant = 20

Factors of constant ±1, ±2, ±4, ±5, ±10, ±20.

Leading coefficient= 1

Factors of leading coefficient ±1.

Therefore, the potential root of the polynomial are $\pm 1, \pm 2, \pm 4, \pm 5, \pm 10, \pm 20$ .

3 0

3 years ago

Giulia runs an average of 15 minutes each day. She has a goal of running 100 minutes in seven days. Well she complete her runnin

Snowcat [4.5K]

Running time for 1 day = 15

Running time for 1 week = 15*7= 105

So, yes she has completed her goal

4 0

3 years ago