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3 years ago

Which expression is not equivalent to the other three?

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

7 0

Answer:

b. 4+7x-2

Explanation:

when you add like terms for the first equation it becomes 7x-6

the second one becomes 7x+2

the third one becomes 7x-6

and the last one is also 7x-6

which means the second one is not equivalent

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What is 884 divided by 3

matrenka [14]

Answer:

294.6666666666667

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3 years ago

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The student council had six fund raisers during the school year. They raised $212, $205, $206, $190, $188, and $195. Using the c

Rus_ich [418]

Answer:

$1200

Step-by-step explanation:

The clustering method for estimation is a method used for estimating the sums and products of numbers. This method is used when the numbers that are to be multiplied or added are near in value to a single number.

Given the money raised by six fund raisers:

$212, $205, $206, $190, $188, and $195

The numbers are to be added to find the total money raised. i.e.:

$212 + $205 + $206 + $190 + $188 + $195

But all the numbers are close to $200. Hence:

Using clustering method = $200 + $200 + $200 + $200 + $200 + $200 = 6 * $200 = $1200

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3 years ago

It takes nate four hours to paint a wall and it takes jill seven hours to paint the same wall about how many hours will it take

loris [4]

If Nate paints the wall in 4 hours, it means that he can paint 1/4 of the wall every hour.

Similarly, if Jill paints the wall in 7 hours, it means that he can paint 1/7 of the wall in one hour.

So, together, they paint the following fraction of the wall in one hour:

$\frac{1}{4}+\frac{1}{7} = \frac{4+7}{28} = \frac{11}{28}$ .

At this rate, they need 28/11 hours to paint the whole wall, in fact, after that amount of time they paint

$\frac{11}{28}\frac{28}{11} = 1$

i.e. the whole wall

7 0

3 years ago

7.For the given triangle find the exact value for tan(A). Assume angle C is a right angle.

Vsevolod [243]

tan A = 2/7 (option C)

Explanation:

Angle = A

opposite = side opposite the angle = BC

opposite = 2

adjacent = AC

AC = 7

hypotenuse not given

Since angle C is a right angle, we would apply trigonometry ratio SOHCAHTOA

We are looking for tan A, tan ratio (TOA):

$\tan angle=\frac{opposite}{adjacent}$ $\tan \text{ A = }\frac{2}{7}\text{ (}option\text{ C)}$

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1 year ago

Which whole numbers fall between .53 and 2.5

aleksley [76]

There are only 2 whole numbers that fall between .53 and 2.5. (Whole numbers are basically numbers we count with through our daily life.)

1 is greater than .53 and 2 is less than 2.5. Your answer is 1 and 2.

5 0

3 years ago