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3 years ago

7

Can someone answer this step by step to help me understand how to get my answer thank you

1 answer:

frozen [14]3 years ago

6 0

The answer is 19y – 9.

First, distribute the -3 to ( -4y + 3 ). So:
= ( 12y – 9 ) + 7y

Then, combine like terms. In this case, the like terms are 12y and 7y. So:
= 12y – 9 + 7y
= 19y – 9

You might be interested in

If log subscript 2 left parenthesis 3 x minus 2 right parenthesis equals 4, then what is the value of x?

elena-14-01-66 [18.8K]

Answer:

x = 6

See image.

Step-by-step explanation:

Logarithms are just another way to write exponents. The base on the logarithm that is the small font subscript IS the base (normal font/on the line) of an exponential equation. The "answer" in the logarithmic equation is the exponent (small font/superscript) .It is just a triple shuffle. When the logarithmic equation cant be worked on to solve it, CHANGE IT to exponential form. See image.

6 0

2 years ago

Please help! i'm not really good at these, thank u sm if u help!

Archy [21]

Answer:

Correct: a, b, c, d, f, g, h, i, l

Incorrect: e, j, k

Step-by-step explanation:

a. -120=60(-2) {insert x and y into the equation and see if it works} Correct

b. 60 is being multiplied by hours, so it is the mph Correct

c. 60 is always the one being multiplied, so it's the constant Correct

d. 210=60(3.5) {insert 3.5 as x [cause hours] and see if it equals 210 [it does]} Correct

e. y is the dependent variable, and it represent miles driven Incorrect

f. Direct variation equation is y=kx {in the equation, k=60} Correct

g. x is the independent variable, and it represents the hours driven Correct

h. The x and the y are proportional Correct

i. y is the dependent variable, and it represent miles driven Correct

j. y is the dependent variable, and it represent miles driven Incorrect

k. Rise=y Run=x The first point would be (1,60) {rise=60 run=1} Incorrect

l. (0,0) is a solution, and it is also the y-intercept Correct

(hope this helps :P)

8 0

3 years ago

Find Y.<br> Round to the nearest tenth.

Dennis_Churaev [7]

Answer:

Y ≈ 59.0°

Step-by-step explanation:

Using the Cosine rule

cosY = $\frac{x^2+z^2-y^2}{2xz}$

with x = 22, y = 20, z = 18

cosY = $\frac{22^2+18^2-20^2}{2(22)(18)}$

= $\frac{484+324-400}{792}$

= $\frac{408}{792}$ , then

Y = $cos^{-1}$ ( $\frac{408}{792}$ ) ≈ 59.0° ( to the nearest tenth )

8 0

3 years ago

-2 and 1/3 times 1 and 1/2=

torisob [31]

Answer:

$-2\frac{1}{3}\times 1\frac{1}{2}=-3.5$

Step-by-step explanation:

We are asked to find the product of $-2\frac{1}{3}$ and $1\frac{1}{2}$ .

Upon writing our expression as a product we will get,

$-2\frac{1}{3}\times 1\frac{1}{2}$

Let us convert our given mixed fractions to improper fractions.

$\frac{-7}{3}\times \frac{3}{2}$

Upon cancelling out 3 from our given expression we will get,

$\frac{-7}{2}$

Upon dividing -7 by 2 we will get,

$\frac{-7}{2}=-3.5$

Therefore, our expression simplifies to -3.5.

4 0

3 years ago

Which one is it? because idk

Natasha2012 [34]

Answer:

i cant see the picture

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers