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2 years ago

Use elimination to solve each system of equations 3x + 5y = -2 3x - 2y = - 16

Mathematics

1 answer:

Luden [163]2 years ago

3 0

Y= -6 because we eliminated 3x, subtracted 5-2 and -2-16. that gave us 3y=-18. divide by 3 on both sides.

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What is the solution to the equation 3.6m − 2.7 = −1.8m?

Finger [1]

Answer:

Option B is correct

m = 0.5 is the solution to the equation

Step-by-step explanation:

Given the equation:

$3.6m-2.7= -1.8m$

Add 2.7 to both sides, we have;

$3.6m-2.7+2.7= -1.8m+2.7$

Simplify:

$3.6m = -1.8m+2.7$

Add 1.8 m to both sides we have;

$5.4m =2.7$

Divide both sides by 5.4 we have;

$m = \frac{1}{2} = 0.5$

⇒m = 0.5

Therefore, the solution for the given equation is, 0.5

7 0

3 years ago

Read 2 more answers

Determine the area under the standard normal curve that lies to the left of (a) upper z equals 0.02 comma (b) upper z equals n

Anuta_ua [19.1K]

A) 0.50798
b) 0.42465
c) 0.35197
d) 0.040930

3 0

3 years ago

why is it not usually realistic to measure the distance between two points on a map as a straight line? explain.

aksik [14]

The map is a flat schematic of some actual distance, on a map, the distance form point A to point B may well be 10 units say, however, in actuality, if you go and walk from point A to point B, you'd notice that, first off is not a straight line most of the time, and also it may have a slanted or sloped section, and the map is not including that slope or hill, whilst you do have to walk it.

so, adding all the twists and curves along the way and any bumps or slopes, is really not exactly 10 units from A to B.

3 0

4 years ago

Read 2 more answers

In a survey of 1,532 former UF students, 84% said they were still in love with Tim Tebow. The survey's sampling error was 2%. Us

nalin [4]

Answer:

confidence interval for the proportion of all former UF students who are still in love with Tim Tebow.

(0.79 , 0.89)

Step-by-step explanation:

step 1:-

Given sample survey former UF students n = 1532

84% said they were still in love with Tim Tebow

p = 0.84

The survey sampling error

$= \sqrt{\frac{p(1-p)}{n} }$

Given standard error of proportion = 2% =0.02

Step 2:-

The 99% of z- interval is 2.57

The 99% of confidence intervals are

p ± zₐ S.E (since sampling error of proportion = $\sqrt{\frac{pq}{n} }$

$(0.84 - 2.57X0.02 , 0.84 + 2.57X0.02)$

on simplification , we get

(0.84 - 0.0514 , 0.84 + 0.0514)

(0.79 , 0.89)

conclusion:-

confidence interval for the proportion of all former UF students who are still in love with Tim Tebow.

(0.79 , 0.89)

4 0

3 years ago

0.6×8 and tell me how you got the answer pls <img src="https://tex.z-dn.net/?f=0.6%20%5Ctimes%208" id="TexFormula1" title="0.

Tresset [83]

Answer:

4.8 is the answer!

Step-by-step explanation:

0.6 x 8 = 4.8

6 x 8 = 48

multiply 6 by 8, and move the decimal to the left one time, and get 4.8

7 0

3 years ago

Read 2 more answers