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3 years ago

What is 175-172 divided by 29 over the square root of 20

Mathematics

1 answer:

Fiesta28 [93]3 years ago

4 0

Hello!
This is what I found. The answer is written in Exact Form and Decimal Form
I hope this helps :)

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Find the area of the blue area if each<br> square represents 1.5 square meters.

Anni [7]

Check the picture below.

so the picture has a rectangle that is 8 units high and 12 units wide, and it has a couple of "empty" trapezoids, with a height of 5 and "bases" of 9 and 3.

now, if we just take the whole area of the rectangle and then subtract the area of those two trapezoids, what's leftover is the blue area.

$\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h=height\\ a,b=\stackrel{parallel~sides}{bases}\\[-0.5em] \hrulefill\\ h=5\\ a=9\\ b=3 \end{cases}\implies \begin{array}{llll} A=\cfrac{5(9+3)}{2}\implies A=30 \end{array} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\large Areas}}{\stackrel{rectangle}{(12\cdot 8)}~~ -~~\stackrel{\textit{two trapezoids}}{2(30)}}\implies 96-60\implies 36$

3 0

2 years ago

Piano and pipe organs contain keyboard a portion of which is shown Express the ratio of Black Keys to white keys in the picture

Katena32 [7]

Ratios can be written as fractions.....so the ratio of black keys to white keys is 6:8...which can be written as 6/8....which reduces to 3/4...hence the ratio simplified is 3:4......which is also written as 3/4 and as 3 to 4

4 0

3 years ago

2 Determine whether the table represents a linear relationship. If so, state the slope of

yarga [219]

Answer:

Tables A and B represent linear relationship

-------------------------

<h3>Table A</h3>

x = 2, 3, 4, 5 Difference is 1
y = 14, 21, 28, 35 Difference is 7

This is linear and the slope is 7

<h3>Table B</h3>

x = -2, -1, 0, 1 Difference is 1
y = 10, 5, 0, -5 Difference is - 5

This is linear and the slope is - 5

<h3>Table C</h3>

x = 2, 3, 4, 5 Difference is 1
y = 48, 72, 90, 114 Difference is inconsistent

This is not linear

6 0

2 years ago

A slide 15 feet long makes an angle of 330 with its vertical ladder. To the

Shkiper50 [21]

Answer:

13ft

Step-by-step explanation:

Kindly find attached a rough draft of the situation.

Step one:

Given data

The length of the slide represents the

Hypotenuse of the situation on the rough sketch

Angle =33°

Required

The height of the ladder which is the adjacent of the rough sketch represented by x

Step two:

Applying SOH CAH TOA

Cos θ= adj/hyp

Cos 33=x/15

0.84=x/15

Cross multiplying

x=0.84*15

x=12.6

To the nearest foot the ladder is 13ft tall

6 0

3 years ago

Erin has four shirts (white, blue, red, black) and two pairs of pants (blue and black). She randomly chooses a shirt and a pair

Alexxx [7]

D- 1/4
The probability of Blue shirt blue socks is 1/4 * 1/2 = 1/8
Add this to the same probability of black and black =2/8 = 1/4

8 0

3 years ago

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