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4 years ago

Which equations have a leading coefficient of 3 and a constant term of -2?

Mathematics

1 answer:

const2013 [10]4 years ago

3 0

Answer: the answer to this is 3x-2

Step-by-step explanation:

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Do just 12 and 13 for brainliest.

Stella [2.4K]

Answer:

12 = Congruent Isosceles triangles

13= Congruent Scalene triangles

I hope this helps, but the paper is confusing, and jumbled.

4 0

4 years ago

A rectangular prism has a length of 12 in., a width of 5 in., and a height of 414 in.

Dafna11 [192]

Answer:

16320 cubes are needed to fill the rectangular prism.

Step-by-step explanation:

Given : A rectangular prism has a length of 12 in., a width of 5 in., and a height of $4\frac{1}{4}$ in.

The prism is filled with cubes that have edge lengths of $\frac{1}{4}$ in.

To find : How many cubes are needed to fill the rectangular prism?

Solution :

A rectangular prism has

Length of 12 in.

Width of 5 in.

Height of $4\frac{1}{4}=\frac{17}{4}$ in.

Volume of rectangular prism is $V=L\times B\times H$

$V=12\times 5\times \frac{17}{4}$

$V=255 in^3$

A cube has length of $\frac{1}{4}$ in.

Volume of cube is $V=L^3$

$V=\frac{1}{4}^3$

$V=\frac{1}{64}in^3$

Cubes are needed to fill the rectangular prism is

$=\frac{\text{Volume of rectangular prism}}{\text{Volume of cubes}}$

$=\frac{255}{\frac{1}{64}}$

$=255\times 64$

$=16320$

Therefore, 16320 cubes are needed to fill the rectangular prism.

6 0

4 years ago

Read 2 more answers

Simplify.<br> 7x + 3(x - 2) - 4x + 8

alisha [4.7K]

Answer:

6x+2

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Last year, the price of a 45-ounce box of detergent was $3.75. This year, the price of a 45-ounce box of detergent is $4.50. Wha

Romashka-Z-Leto [24]

First, we need to find out how much the price increased by.

$4.50 - $3.75 = $0.75

Now we have to figure out what percent $0.75 is of $3.75. To do this, we divide $0.75 by $3.75.

The answer is 0.2. Now, we convert this into a percent by moving the decimal to the right by to spaces: 0.2 = 20%

The percent of increase is 20%.

4 0

4 years ago

Read 2 more answers

A simple random sample of 125 SAT scores has a mean of 1522. Assume that SAT scores have a population standard deviation of 335.

Fed [463]

Answer:

$1463.3\:$

Step-by-step explanation:

Since the population standard deviation $\sigma$ , is known, we use the z confidence interval for the mean.

This is given by:

$\bar X-z_{\frac{\alpha}{2} }(\frac{\sigma}{\sqrt{n} } )\:$

For a 95% confidence interval we use $z=1.96$ .

It was also given that: $n=125$ , $\bar X=1522$ and $\sigma=335$

Let us substitute the values to get:

$1522-1.96(\frac{335}{\sqrt{125} } )\:$

$1463.3\:$

<u>Interpretation:</u>

We can say with 95% confidence that the interval between 1463.3 and 1580.7 SAT scores contains the population mean based on the sample 125 SAT scores.

7 0

3 years ago