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3 years ago

-(3-10y) simplify expression pls

Mathematics

2 answers:

Diano4ka-milaya [45]3 years ago

6 0

Answer:

-3+10y

Step-by-step explanation:

Distribute the Negative.

Pani-rosa [81]3 years ago

6 0

Answer:

-3 + 10y

Step-by-step explanation:

Apply the distributive property. Think of the negative outside the parentheses as -1. Multiply each term inside the parentheses by -1. What that does is change each sign inside the parentheses.

-(3 - 10y) = -1 * (3 - 10y) = -1 * 3 - 1 * (-10y) = -3 + 10y

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The height of a right rectangular prism is 3 units greater than the length of the base. The edge length of the square base is x

jok3333 [9.3K]

Answer:

B. x^3 + 3x^2

Step-by-step explanation:

Volume of a rectangular prism=width * length * height

V=w*l*h

h=3 greater than the length of the base

h=x+3

Length of the base=x

Width=x

Substituting values into the formula

V=w*l*h

=(x)*(x)*(x+3)

Multiplying

=(x^2)(x+3)

=x^3 + 3x^2

Option B is the correct answer

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3 years ago

I need help on solving these types of geometry problems! Teacher said the answer is 7 but I have to show work. Thank you!

Nikolay [14]

The vertex where the two triangles touch forms a pair of vertical angles, so that the angles on opposites sides of the vertex are congruent. You're shown that two legs of both triangles are congruent. All this tells you that the two triangles are isosceles, and furthermore that they are similar because of the congruence of their "base" angles.

This means

$82^\circ=m\angle 2$

$\implies82=10x+12$

$\implies10x=70$

$\implies\boxed{x=7}$

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3 years ago

If a 3-pound bunch of bananas cost $1.50, how

LUCKY_DIMON [66]

Answer:

Approximately 3 bunches would equal $4.50. So you should be able to buy at least 4 bunches which would be 10 pounds

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3 years ago

. Mrs. Rojas deposited $8000 into an account paying 4% interest annually. After 8 months Mrs. Rojas withdrew the $6000 plus inte

Mashcka [7]

well, keeping in mind that a year has 12 months, that means that 8 months is 8/12 of a year, when Mrs Rojas pull her money out.

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well, she put in 6000 bucks, got back 160 extra, that's the interest earned in the 8 months.

what if she had left her money for 1 whole year, then

$~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$6000\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ t=years\dotfill &1 \end{cases} \\\\\\ A=6000[1+(0.04)(1)]\implies A=6240$

so had she left it in for a year, she'd have gotten 6240, namely 240 in interest, well, what fraction of a year's interest was earned? or worded differently, what fraction is 160(8 months) of 240(1 year)?

$\cfrac{\stackrel{\textit{for 8 months}}{160}}{\underset{\textit{for 12 months}}{240}}\implies \cfrac{2}{3}$

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2 years ago

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erica [24]

The answer will be A. 471/11. Hope it help!

4 0

3 years ago