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Nimfa-mama [501]

3 years ago

15

12) 10 + (-2)+1how do i solve this?

1 answer:

Step2247 [10]3 years ago

4 0

Answer: 9

Step-by-step explanation: its very simple , first take the -2 out of the parenthesis and put is as 10-2+1 which is positive 9 because 10-2=8 and plus 1 is 9.

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PLEASE HELP!!<br> just look at the picture

arlik [135]

Answer:

its the math that solve

Step-by-step explanation:

4 0

3 years ago

Prove that the value of the expression does not depend on the variable x:

Leviafan [203]

Answer:

See below

Step-by-step explanation:

If an expression is not dependent on x, it simplified form must not contain x. To show that this is the case for (a) and (b) we need to simplify them and assess:

(a)

$(x-5)(x+8)-(x+4)(x-1)=\\=x^2-5x+8x-40-x^2-4x+x+4=-36$

Indeed, does not depend on x!

And (b)

$x^4-(x^2-1)(x^2+1)=x^4-x^4+x^2-x^2+1=1$

Again, does not depend on x.

8 0

3 years ago

I will give u 100 points if u can answer this quition pls it is hard for me John has three pieces of rope. One piece was 31 cm l

serious [3.7K]

Answer:

Add 0.31 + 0.33 + 0.45;

Step-by-step explanation:

Hope I got it right! If not i'm sorry.

7 0

3 years ago

Read 2 more answers

Solve 2(9-x) = 3 ( x +16 )

andreyandreev [35.5K]

Answer: x=-6

Step-by-step explanation:

Let's solve your equation step-by-step.

2(9−x)=3(x+16)

Step 1: Simplify both sides of the equation by distribution

$2(9-x)=3(x+16)\\(2)(9)+(2)(-x)=(3)(x)+(3)(16)\\18+-2x=3x+48\\-2x+18=3x+48\\$

Step 2: Subtract 3x from both sides.

$-2x+18-3x=3x+48-3x\\-5x+18=48$

Step 3: Subtract 18 from both sides.

$-5x+18-18=48-18\\-5x=30$

Step 4: Divide both sides by -5.

$\frac{-5x}{-5} =\frac{30}{-5} \\x=-6$

3 0

2 years ago

Caculate the distance between the points L= (-1 ,-2) and (7,-9)

LUCKY_DIMON [66]

Distance sqrt of (x2-x1)/(y2-y1).

Distance = sqrt of 8/-7

Hope this helps!

5 0

3 years ago

Read 2 more answers