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3 years ago

Which expression is equivalent to -3 (2m - 1) - n?

Mathematics

1 answer:

Semenov [28]3 years ago

7 0

Answer:

−6−m+3

Explanation

-3 (2m - 1) - n?

Distribute

−3(2−1)−

−6+3−

Rearange

−6+3−

−6−m+3

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What is the volume of a right trianular prism with the dimesions of 15 11 17

Harlamova29_29 [7]

Answer:

1402.5 Cubic Units

Step-by-step explanation:

Volume of a Triangular Prism: V = $\frac{1}{2}bhl$

b - base

h - height

l - length

15 is the height, 17 is the length, and 11 is the width (assuming which is the base).

$V=0.5 * (11 * 15 * 17) \\V=0.5*2085\\V=1402.5$

The volume of the prism should be 1402.5 cubic units.

3 0

3 years ago

Camille had $18.90 to spend on groceries. After buying 10 grapefruits, she had $3.90 left. Of each grapefruit costs the same amo

HACTEHA [7]

Answer: $1.5

Step-by-step explanation:

subtract 3.9 from 18.9

you get 15, divide by 10

=1.5

6 0

4 years ago

PLSSS help !!! find n AND m no need to show work

LuckyWell [14K]

180 = 2n + 128
2n = 52
n = 26°

180 - 128 = 52
90 + 52 + m = 180
142 + m = 180
m = 38°

Answer: n = 26° and m = 38°

8 0

3 years ago

Read 2 more answers

An ellipse has vertices at (0, #17) and foci at (0, ±15). Write the equation of the ellipse in standard form. Graph the ellipse.

Lunna [17]

ANSWER

$\frac{ {x}^{2} }{ 64 } + \frac{ {y}^{2} }{ 289 } = 1$

See attachment for the graph

EXPLANATION

The standard equation of the vertical ellipse with center at the origin is given by

$\frac{ {x}^{2} }{ {b}^{2} } + \frac{ {y}^{2} }{ {a}^{2} } = 1$

where

${a}^{2} \: > \: {b}^{2}$

The ellipse has its vertices at (0,±17).

This implies that:a=±17 or a²=289

The foci are located at (0,±15).

This implies that:c=±15 or c²=225

We use the following relation to find the value of b²

${a}^{2} - {b}^{2} = {c}^{2}$

$\implies \: 289 - {b}^{2} = 225$

$- {b}^{2} = 225 - 289$

$- {b}^{2} = - 64$

${b}^{2} = 64$

We substitute into the formula for the standard equation to get:

$\frac{ {x}^{2} }{ 64 } + \frac{ {y}^{2} }{ 289 } = 1$

4 0

3 years ago

PLEASE HELP!!! Hshehebsjahsvsvabsbbsbs

IRISSAK [1]

Answer:

i think its like 9.14 or sumthin

Step-by-step explanation:

is tht NWEA? lol

5 0

3 years ago