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4 years ago

Which expressions are equivalent to 7 (negative three-fourths x minus 3)? Select two options.

Mathematics

2 answers:

Gre4nikov [31]4 years ago

8 0

Answer:sorry but thats the wrong answer it a a and c

Step-by-step explanation:

steposvetlana [31]4 years ago

6 0

Answer:

its b

Step-by-step explanatio Whichexpression is not equivalent to Negative 3 x minus one-half + 4 y?

2 y minus 5 x minus one-half + 2 y + 2 x

Negative 2 x minus one-half + 6 y + 3 x

Negative 3 x minus three-fourths + 4 y + one-fourth

Negative 3 y minus three-fourths + 7 y + one-fourth minus 3 x

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An ant has a mass of approximately 4 × 10–3 grams and an elephant has a mass of approximately 8 x 106 grams. About how many time

Butoxors [25]

Ant's mass: 4 x 10 - 3
Elephant's mass: 8 x 106

First, we should evaluate these expressions by using PEMDAS. PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction. From P to S is the order that we must follow these steps.

So first for the ant's mass, we have to multiply first since the M comes before the S, resulting in 40 - 3 grams.
Next we have to subtract, leading us to getting 37.

For the elephant since there is only one operation, all we have to do is multiply, which equals 848.

In order to see how many times larger the elephant is than the ant, we have to divide the elephant's mass by the ant's.
848/37 = 22.9

Since you only want an approximate answer, you can put down 23 or even go a bit more vague and put down 20.

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3 years ago

How do I solve this? PLEASE HELP TIME LIMIT

katrin [286]

im not sure how to explain it, but i know its b

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3 years ago

These data represent the volumes in cubic yards of the largest dams in the united states and in South America. Construct a boxpl

Vsevolod [243]

Answer:

Check it below

Step-by-step explanation:

1) The Boxplot is a visual tool to easily find the quartiles of a Distribution. To construct a boxplot it's necessary to organize the data, find at least the upper (3rd Quartile) and lower quartile (1st Quartile), and register the maximum and the minimum value.

2) This graph confirms that the South American ones have much more water than the North American counterparts. Notice the Upper Quartile, (the top of the box) for the Southern ones, it's over 100,000 yrds³. And Compare to the Northern one.

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3 years ago

The bar diagram represents 24 hours in one day and shows a mark at 30%If you sleep 30% of the day, how many hours do you sleep?

horrorfan [7]

Let:

100%---------------->24h

30%------------------>xh

Using cross multiplication:

$\begin{gathered} \frac{100}{30}=\frac{24}{x} \\ solve_{\text{ }}for_{\text{ }}x\colon \\ x=\frac{30\cdot24}{100} \\ x=\frac{720}{100}=7.2h \end{gathered}$

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1 year ago

Need help finding a domain

CaHeK987 [17]

Answer:

the domains is

$- 10 < x \leqslant 10$

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