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3 years ago

Which of the following is an expression? *

Mathematics

1 answer:

Yanka [14]3 years ago

4 0

Answer:

Step-by-step explanation:

An expression does not have an equals sign

An equation has an equals sign

4x = 12 equation

25 - 12 = 13 equation

7x - 3 + 2y =29 equation

3m expression

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What is the probability of rolling a number less than or equal to eight with the sum of two dice, given that at least one of the

Daniel [21]

Answer:

4/11

Step-by-step explanation:

Outcomes that meet your requirement are

(1, 6), (2, 6), (6, 1), (6, 2)

for a total of 4 favorable outcomes.

There are 11 outcomes in which one die shows a 6.

So your probability would be 4/11.

6 0

2 years ago

What is the power of 90000÷5768

Georgia [21]

0.00015603328 to the power of

3 0

2 years ago

Pleaseee help me I’m lost

mestny [16]

Answer:

10x^3+14x^2-25x-35

Step-by-step explanation:

f(x) = 2x^2 -5

g(x)= 5x+7

f(g(x)) = (2x^2 -5)(5x+7)

5x(2x^2 -5)+7(2x^2 -5)

10x^3-25x+14x^2-35

10x^3+14x^2-25x-35

8 0

3 years ago

Solve the inequality and graph the solution on the line 5x+7≤-8

bija089 [108]

Answer:

If my calculations are correct.

Step-by-step explanation:

3 0

2 years ago

Solve the equatuon x/2-(2/(x+1))=1 x=?

Snezhnost [94]

$\frac{x}{2}-\frac{2}{x+1}=1$

We have 2 denominators that we need to get rid of. Whenever there are the denominators, all we have to do is multiply all whole equation with the denominators.

Our denominators are both 2 and x+1. Therefore, we multiply the whole equation by 2(x+1)

$\frac{x}{2}[2(x+1)]-\frac{2}{x+1}[2(x+1)] = 1[2(x+1)]$

Then shorten the fractions.

$\frac{x}{2}[2(x+1)]-\frac{2}{x+1}[2(x+1)] = 1[2(x+1)]\\x(x+1)-2(2)=1(2x+2)$

Distribute in all.

$x^2+x-4=2x+2$

We should get like this. Because the polynomial is 2-degree, I'd suggest you to move all terms to one place. Therefore, moving 2x+2 to another side and subtract.

$x^2+x-4-2x-2=0\\x^2-x-6=0\\$

We are almost there. All we have to do is, solving for x by factoring. (Although there are more than just factoring but factoring this polynomial is faster.)

$(x-3)(x+2)=0\\x=3,-2$

Thus, the answer is x = 3, -2

7 0

2 years ago