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sveticcg [70]
3 years ago
7

$14.50 is 30% of what number? A) $45.20 B) $48.00 C) $62.80 D) $52.40 E) $54.00

Mathematics
2 answers:
AlladinOne [14]3 years ago
5 0

Answer:

B

Step-by-step explanation:

crimeas [40]3 years ago
3 0

Answer:

B

Step-by-step explanation:

because its rellevant :)

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In multiplication what is 707 - 58
zzz [600]
707 times 58 = 41,006 
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2 years ago
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How many solutions are there to the system of equations graphed below if the lines are parallel? A. Zero B. One C. Two D. Infini
Sholpan [36]

Answer:

A) 0

Step-by-step explanation:

The solution is a couple (x, y) that are the coordinates of the intersection point of the lines.

If the lines are parallel there is no intersection and no solution to the system of equations

5 0
2 years ago
A closed box has a square base with side length l feet and height h feet. Given that the volume of the box is 29 cubic feet, exp
qwelly [4]

Answer:

The surface area of the box in terms of l is 2l^2 +116/l

Step-by-step explanation:

The length of the box = l

The height of the box = h

The volume of the box can be obtained by multiplying the surface area of the base by the height of the box.

The surface area of the base of the box is a square, so it will be obtained by multiplying l \times l = l^2

hence volume = l^2 \times h =29

Notice that we are told to give our answer in terms of l, so we will make h the Subject of the formula in the above equation.

h =29/l^2

In the next phase, we are to find the surface area of the box.

The box has a square base, hence it will be made up of

2 squares with 4 rectangles. This is assuming the top is closed.

This means the surface area will be

2(l^2) +4 (l\times h)

recall h = 29/l^2

Hence, surface area =

2(l^2) +4(l \times 29/l^2)\\2l^2 +116/l

The surface area of the box in terms of l is 2l^2 +116/l

4 0
3 years ago
Writing quadratic equations question 4​
Ratling [72]

Answer:

a²+b²=c²; (1.0)²+(5.0)²=x²

Step-by-step explanation:

(1.0×1.0)+(5.0×5.0)=(x×x)

5 0
3 years ago
Given tan theta = -2 and pi/2 < theta < pi; find cos2theta.
Kay [80]

Answer:

Cos 2theta = -3/5

Step-by-step explanation:

Given that;

tan theta = -2

tan theta = -2/1 = opp/adj

hyp^2 = (-2)^2+1^2

hyp = √4+1

hyp = √5

sin theta = opp/hyp

sin theta = -2/√5

Cos theta = adj/hyp

Cos theta = -2/√5

Cos 2theta = 1-2sin^2 theta

Cos 2theta = 1- 2(-2/√5)^2

Cos 2theta = 1- 2(4/5)

Cos 2theta = 1- 8/5

Cos 2theta = (5-8)/5

Cos 2theta = -3/5

8 0
2 years ago
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