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agasfer [191]
3 years ago
10

The square of 9 less than a number is 3 less than the number. What is the number?

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
5 0

Answer:

D. 7 or 12

Step-by-step explanation:

Just took it. Edg 2020. Hope this helps :)

alexdok [17]3 years ago
4 0

Answer:

7, 12

Step-by-step explanation:

( n-9)^2 = n-3

Foil the right

n^2 -18n +81 = n-3

Subtract n from each side

n^2 -19n +81 =-3

Add 3 to each side

n^2 -19n +84 = 0

Factor

What 2 numbers multiply to 84 and add to -19

-12*-7 = 84

-12+-7 = -19

( n-7) (n-12) =0

Using the zero product property

n-7 =0   n-12= 0

n=7  n=12

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2x + 2y - x - (8 + 1)?
kotegsom [21]

Answer:

x + 2 y − 9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A soccer team is having a car wash.The team spent $55 on supplies and earned $275,including tips. The teams's profit is the amou
Dafna11 [192]

hey there

the answer is

220

thanks

SAVAGELEGEND72

6 0
4 years ago
Solve the following problems. Choose the letter of the correct answer. (Show your complete solutions.)
motikmotik

:1

i didnt understand the question because of my English sorry

:2

we all know that the total of degrees is 180 so 70+70=140

180-140=40

so the answer is 40

3:

we have a figure with 4 angle so the total of degrees is 360 so the answer is 126

4:

the answer most be 50 becuse we have a Special degree witch always equal 90 if we have recatngle so

x+40=90

X=50 the answer and if you want to try again choose the second one

2x-10=90

2x=100

X=50 same answe you see

5:

in this quastion i searched and find alot of answers any way

its should be 7 or 3 but the correct answer in my opinion its 7

its shows in the picture i sent hopefully its helpful to you i will try to translate the first quastion and sent it to you

6 0
3 years ago
A cylinder has a height of 10 inches and a radius of 17 inches. What is its volume? Use ​ ≈ 3.14 and round your answer to the ne
Gelneren [198K]

Steps:

Radius= 17in

Height= 10in

Formula: V=πr2h

Shape: Right cylinder

Solved for volume

H= Height

R= Radius

Description:

We know that R is 17 inches, and H is 10 inches. Since we are finding the volume we use the formula V=πr2h to calculate. After calculating your answer will come as V≈9079.2in³. You also said to round your answer to the nearest hundredth. After rounding your answer to th enearest hundredth your answer will come as 9,079.20.

Answer: V≈9079.2in³

Round to the nearest hundredth = 9,079.20

Please mark brainliest

<em><u>Hope this helps.</u></em>

8 0
3 years ago
Can somebody please clearly (and correctly) explain how to successfully work out this question?
STatiana [176]

Answer:

No

Step-by-step explanation:

To calculate the number of tiles needed

divide 4m by 0.2m for row of tiles ⇒ 20 tiles per row

divide 3m by 0.2m for column of tiles ⇒ 15 tiles per column

number of tiles = 20 × 15 = 300

number of packs = 300 ÷ 10 = 30

cost = 30 × £34.99 = £1049.70

Since she has £1000 to spend and £1049.70 > £1000

She does not have enough to cover the wall




6 0
3 years ago
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