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3 years ago

Solve the following system of equations and show all work. y = 2x2 y = −3x −1

1 answer:

8 0

2*2 is 4, so y=4. Knowing this, the second equation is 4=-3x-1. Add 1 to each side to get 5=-3x, then divide each side by -3 to get x=-5/3

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A class of 64 students was given 320 book how many will each students take home

uranmaximum [27]

Each student will take=320/64

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So the answer is 5.

Hope it will be helpful to you...

✧◝(⁰▿⁰)◜✧

4 0

3 years ago

Find the area of the regular polygon. Round to the nearest tenth.

mojhsa [17]

Given:

Side length = 12 in

To find:

The area of the regular polygon.

Solution:

Number of sides (n) = 6

Let us find the apothem using formula:

$$a=\frac{s}{2 \tan \left(\frac{180^\circ}{n}\right)}$

where s is side length and n is number of sides.

$$a=\frac{12}{2 \tan \left(\frac{180^\circ}{6}\right)}$

$$a=\frac{6}{ \tan (30^\circ)}$

$$a=\frac{6}{ \frac{1}{\sqrt{3} }}$

$$a=6\sqrt{3}$

Area of the regular polygon:

$A=\frac{1}{2}(\text { Perimeter })(\text { apothem })$

$$A=\frac{1}{2}(6 \times 12)(6\sqrt{3} )$

$$A=\frac{1}{2}(72)(6\sqrt{3} )$

$A=216 \sqrt{3}$

$A=374.1$ in²

The area of the regular polygon is 374.1 in².

4 0

3 years ago

What is a cube in math

DerKrebs [107]

Answer:

In arithmetic and algebra, the cube of a number n is its third power, that is, the result of multiplying three instances of n together. The cube is also the number multiplied by its square: n3 = n × n2 = n × n × n.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A floor lamp costs $21 less than a $99 painting. How much does the floor lamp cost?

lesya [120]

99-21=78

Answer:The floor lamp costs $78

6 0

3 years ago

Read 2 more answers

What is the circumference of the circle?

Nady [450]

Answer:

18.84

Step-by-step explanation:

The formula for circumference is 2(pi)r, I think. The radius is 3. 3 times 2 is 6. 6 times 3.14 is around 18, I think.

4 0

3 years ago