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2 years ago

Expand and Simplify 10a-(3a+7)

Mathematics

1 answer:

yuradex [85]2 years ago

3 0

The answer would be 7(a - 1)

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Help please! I’ll give brainliest.

Lapatulllka [165]

9514 1404 393

Answer:

(a) not proportional

(b) k = 7/8

Step-by-step explanation:

When a linear equation is of the form ...

y = mx + b

with b ≠ 0, the relation is NOT PROPORTIONAL.

If b=0, so the equation is of the form ...

y = kx

then the relation IS PROPORTIONAL. The constant of proportionality is k.

(a) Not proportional

(b) Proportional with k = 7/8

8 0

3 years ago

Solve for x using the Quadratic Formula: x2 + 4x + 4 = 0 x = −2

EleoNora [17]

Answer:

x=-2

Step-by-step explanation:

x^2+4x+4 = 0

(x+2)(x+2) = 0

x+2=0

x=-2

6 0

2 years ago

Read 2 more answers

(GIVING BRAINLIEST!! Pls help answer the problem and not just the equation!)

Damm [24]

Answer:

1/8

1/2 divided by 4 = 1/8

Step-by-step explanation:

3 0

2 years ago

Hey can you please help me posted picture of question

Ronch [10]

The formulas for conditional probability are:
$P(A\cap B')=P(A)\cdot P(B'|A)$
$P(A\cap B')=P(B')\cdot P(A|B')$ .
Since $P(A\cap B')= \frac{1}{6}$ and $p(B')= \frac{7}{18}$ , you have the equation $\frac{1}{6} = \frac{7}{18} \cdot P(A|B')$ .
Therefore, $P(A|B')= \frac{1}{6} : \frac{7}{18} =\frac{1}{6} \cdot \frac{18}{7} = \frac{3}{7}$ .
Answer: The correct choice is D.

8 0

3 years ago

What is the volume of the prism?

GREYUIT [131]

let's firstly conver the mixed fractions to improper fractions and then get their product.

$\stackrel{mixed}{4\frac{1}{2}}\implies \cfrac{4\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{9}{2}} ~\hfill \stackrel{mixed}{2\frac{1}{2}}\implies \cfrac{2\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{5}{2}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{9}{2}\cdot \cfrac{5}{2}\cdot 6\implies \cfrac{270}{2}\implies 135$

hmmm I take it that one can write that mixed as $135\frac{0}{2}$ .

is valid, not that it makes any sense.

5 0

2 years ago