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8090 [49]
3 years ago
8

X² - 7 what does equal to

Mathematics
1 answer:
andrezito [222]3 years ago
3 0

Answer:

X-7

Step-by-step explanation:

X the second power is x

X-7 would be the next step and that should be the answer.

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The sum of two numbers is twenty-five.One number is five less than the other number. Find the larger number
djverab [1.8K]
The larger number is 30.

Set up your equation.

x + y = 25

The question tells us one number is 5 less than the other.

The equation now becomes
x -5 = 25

Add 5 to each side to isolate x.

x=30
3 0
2 years ago
Find the area of the circle and explain how u got the answer  . thanks 
trasher [3.6K]

A = (pi)r^2

diameter = 12 in

radius = d/2 = 6 in

A = (pi)6^2

A = 36(pi)

3 0
2 years ago
What is the missing value of 5x-2y=30 (8,)
AnnZ [28]

Answer:

In this equation, we can start by understanding that "x" has a value of 8, as given in the ordered pair. When multiplied by 5, this leads to "40 - 2y = 30". Next, we can subtract 40 from both sides of the equation. This leads us to a value of "-2y = -10". The next step would be to divide both sides by -2 as a way of isolating "y", which leads us to a final value of "y = 5". The final ordered pair would be (8,5).

7 0
3 years ago
Find a three digit number. The tens digit is 3 time the hundreds digit. The sum of the digits is 15. If you reverse the digits,
tresset_1 [31]

Answer:

number = 267

Step-by-step explanation:

i am a 3 digit number divisible by 3.

100a + 10b + c

my tens digit is 3 times as great as my hundreds digit

b = 3a, from this we know a = 1, 2, 3, then b = 3, 6, 9

and the sum of my digits is 15.

a + b + c = 15

if you reverse my digits i am divisible by 6 and 3

100c + 10b + a

this is a logic problem, an equation won't help us here

From the given information b = 3a, and the sum of the 3 digits = 15, we have:

1 3 ___; three single digits can't add up to 15

2 6 _7_; this has to be the number

3 9 _3_; reverse number is not different

Check for division by 3 and 6

267/3 = 89

762/6 = 127

267 is the number

3 0
2 years ago
2x + 9 = 83<br> HELP gOOD ANSWERS ONLY
mina [271]

Answer:

x = 37

Step-by-step explanation:

2x + 9 = 83

-9          -9

2x = 74

---    ----

2     2

x = 37

5 0
2 years ago
Read 2 more answers
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