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3 years ago

Which terms in the expression are like terms? 7x + (-7) + 2/3 + (-7m)

1 answer:

4 0

I Believe B and C the only thing I'm ify about is the negative in front of te 7 if you have any problems go on mathway. com it is the best website created for problems other then this, and its an instant answers because the website gives the answers

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GEOMETRY - I NEED HELP!!!

Ainat [17]

Answer:

angle DLM= 21+50=71 degrees i think

Step-by-step explanation:

take the 2 from 2x and divide 42 by the 2 and you have your variable x solved

3 0

2 years ago

A Ferris wheel has a diameter of 140 ft. There are 40 cars for riders, and they are placed at even intervals around the Ferris w

WITCHER [35]

20ft apart have i great day

4 0

3 years ago

8y + 6 - 15y + 5 - 3

podryga [215]

Step-by-step explanation: im not really sure what it is but if you are working from this probplem do pemdas-

perthises,expoment,mulicaion,divishoin,addishoin, subbtraion

hope this helped! sorry if i spelt these wrong....

8 0

3 years ago

In a random sample of 16 residents of the state of Washington, the mean waste recycled per person per day was 2.8 pounds with a

kakasveta [241]

Answer: The required confidence interval would be (2.72,2.89)

Step-by-step explanation:

Since we have given that

Mean = 2.8 pounds

Standard deviation = 0.24 pounds

n = sample size = 16

We need to find the 80% confidence interval for the mean waste.

z=1.341

So, the confidence interval will be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=(2.8\pm 1.341\times \dfrac{0.24}{\sqrt{16}})\\\\=(2.8\pm 1.314\times 0.06)\\\\=(2.8-0.07884,2.8+0.07884)\\\\=(2.72116,2.87884)$

Hence, the required confidence interval would be (2.72,2.89)

4 0

3 years ago

When we slice a three-dimensional object, we expose new faces that are two dimensional. The two-dimensional face is called _____

zlopas [31]

Answer:

Cross section

Step-by-step explanation:

Cross section refers to the new two dimensional face exposed when we slice through a three dimensional objects.

It can also be the surface or shape exposed by making a straight cut through something, especially at right angles to an axis.

Cross section is the plane surface(two-dimensional objects) formed by cutting across a solid shape (three-dimensional shape) especially perpendicular to its longest axis.

8 0

3 years ago