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Scorpion4ik [409]
3 years ago
7

Indicate the equation of the given line in standard form. The line through point (-3, 4) and perpendicular to a line that has sl

ope 2/5
Mathematics
1 answer:
statuscvo [17]3 years ago
6 0
To be perpendicular the product of the two slopes must equal -1.

2m/5=-1

2m=-5

m=-2.5

since y=mx+b we have so far

y=-2.5x+b, using point (-3,4) we can solve for b

4=-2.5(-3)+b

4=7.5+b

b=-3.5 so

y=-2.5x-3.5  We can multiply the whole equation by two so that the coefficients are integers...

2y=-5x-7  add 5x to both sides

5x-2y=-7
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Whats the volume of the solid?
tatuchka [14]

The volume of the solid will be equal to V=64 Cubic inches.

<h3>What is volume?</h3>

The space occupied by any solid object in the three-dimension is called as the volume.

Here we have 8 cubes in the solid object each cube has the side equal to 2 inches.

So the volume of one cube will be:

V=a³=2³=8 cubic inches

Since total number of the cubes are 8 so total volume will be:

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3 0
2 years ago
Solve the system of equations using any appropriate method: 5x + 2y = -4 and -x + 2y = 8
Maru [420]

Answer:

A

Step-by-step explanation:

-x + 2y = 8

5x + 2y = -4

+ x. -2y. -8

6x = -12

÷6. ÷6

x = -2

5(-2) + 2y = -4

-10 + 2y = -4

+10. +10

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4 0
3 years ago
To the nearest​ millimeter, a cell phone is 72 mm long and 46 mm wide. What is the ratio of the width to the​ length
earnstyle [38]

Answer:

Length = 72 mm

Width = 46 mm

Ratio = 72:46 = 36:23

Step-by-step explanation:

72 and 36 both are divisible by 2. so when we divide them by two we get 36 and 23. we can divide both the sides only with the same number, but 36 and 23 have no common factors. so we leave it here and this is the answer.

5 0
3 years ago
NEED HELP IMMEDIATELY Which expression is equivalent to one over four n − 16?
Gemiola [76]

B. 1/4(n - 64)

Multiplying n and -64 by 1/4 leaves you with 1/4n - 16, the original equation.

5 0
3 years ago
Find the sum<br> 10 + 8 + 0.6 + 0.04
Fudgin [204]

10 + 8 + 0.6 + 0.04 = 18.64

7 0
3 years ago
Read 2 more answers
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