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zhannawk [14.2K]
1 year ago
13

How do i get the method on how to solve this x+5(-2)-1

Mathematics
1 answer:
galben [10]1 year ago
8 0

Answer:

I forgot the name but I can show you how to do it lol

Step-by-step explanation:

x+5(-2)-1

x-10-1 we multiplied 5 and -2

x-11

x=11

how I did the last one is there is a non-existent 0 with an equal sign like my teacher says  so we added 11 to both sides.

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What is the square root of 18 plus the square root of 2? And is it rational or irrational?<br>​
kicyunya [14]
The answer is (rounded to the nearest tenth) about 5.7 and since neither 18 or 2 have a perfect square, so this is irrational.
6 0
2 years ago
On a number line whats the distance between -8 and -2 ? ​
Stels [109]

Answer:

as in the number line negative digits occur on the left side if we subtract -2 from -8 we will get our answer that is -6

Step-by-step explanation:

-8-(-2)

-8+2

-6

8 0
3 years ago
What would be the LCD of 1/6 &amp; 3/8?
slega [8]

Answer:

24

Step-by-step explanation:

Rewriting input as fractions if necessary:

1/6, 3/8

For the denominators (6, 8) the least common multiple (LCM) is 24.

LCM(6, 8)

Therefore, the least common denominator (LCD) is 24.

Calculations to rewrite the original inputs as equivalent fractions with the LCD:

1/6 = 1/6 × 4/4 = 4/24

3/8 = 3/8 × 3/3 = 9/24

7 0
3 years ago
Without using a calculator, evaluate 3675° - 3680 x 3670 by using special algebraic<br>identities.​
asambeis [7]

Answer:

13,505,599 good luck

5 0
3 years ago
Read 2 more answers
Pls pls pls answer! I will mark brainliest!!!! tysm<br> xy = 72<br> (x + 2)(y - 4) = 128
zheka24 [161]

Answer:

x=2 and y=36

Step-by-step explanation:

you have two equations

1) xy=72 and 2) (x+2)(y-4)=128

solve for one of the variables in equation 2), lets do y

(x+2)(y-4)=128, divide by (x+2) to both sides and add 4 to isolate variable y

therefore, y=(128/(x+2))+4

then plug in y into equation 1)

so x(our new y)=72

x( 128/(x+2) +4 )=72

distribute the x so you will get

(128/(x+2))x +4x=72

we are now solving for x, so isolate the x by subtracting 4x and multiplying by (x+2) to get

128x=(x+2)(72-4x)

multiply by distribution and combine like terms

-4x^2 -64x +144 =0

solve for x by quadratic formula, you'll get x=2 or x=-18

substitute back into equation 1), (2)(y)=72, solve for y to get 36

then you can check by substituting back into equation 2)

(2+2)(36-4)=128

(4)(32)=128, 128=128

6 0
3 years ago
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