3 years ago

Please Help with these 3 questions Please

Mathematics

1 answer:

Pepsi [2]3 years ago

3 0

For 14 the answer is -9

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the perimeter of a pentagon (a five-sided polygon) is 50 in. the five sides are represented by consecutive integers. Find the le

posledela

Answer:

8, 9, 10, 11, 12

Step-by-step explanation:

Consecutive integer problems are often easier to work if you consider average values. Here, the middle of the 5 consecutive integers is their average, which is 50/5 = 10.

This tells you the integer side lengths are 8, 9, <em>10</em>, 11, 12.

7 0

2 years ago

Which pair of lines is parallel? A. y=-2x+4 and y=2x-1 B. y=1/2x-1 and y=1/2x+10 C. y=x+3 and y=-2x+3 D. y=3x+5 and y=1/3+2

Lana71 [14]

Parallel lines have the same slope.

The answer is choice B.

Why?

Both equations share the same slope which is 1/2.

See it?

4 0

3 years ago

Read 2 more answers

32 is 25% of x. Hurry please

kondor19780726 [428]

The answer is 128

hope that helps!

3 0

2 years ago

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A 25-foot long ladder is propped against a wall at an angle of 18° with the wall. how high up the wall does the ladder reach? ro

Alecsey [184]

Answer

Find out the how high up the wall does the ladder reach .

To proof

let us assume that the height of the wall be x .

As given

A 25-foot long ladder is propped against a wall at an angle of 18° .

as shown in the diagram given below

By using the trignometric identity

$cos\theta = \frac{Base}{Hypotenuse}$

now

$\theta = 18^{\circ}$

Base = wall height = x

Hypotenuse = 25 foot

Put in the trignometric identity

$cos18^{\circ} = \frac{x}{25}$

$cos18^{\circ} = \bar{0.9510565162}$

x = 23.8 foot ( approx)

Therefore the height of the ladder be 23.8 foot ( approx) .

8 0

3 years ago

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Determine the slope-intercept form of the equation of the line parallel to y = x + 11 that passes through the point (–6, 2).

MArishka [77]

Line parallel to y=x+11 so slopes are equal then
y= x+b
Passing through the point C (-6;2) then C belongs to this line
yc=xc+b
b= 6+2
b= 8
So y intercept is equal to 8

3 0

2 years ago

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