3x+5+2x^-7+8x-5x^-11x+4-5x+3x^+4+3x-6+2x+x^ <br><br><br> ^ = the 2nd power

a rectangular prism and its dimensions are shown in the drawing .What us the total surface area of the rectangular prism in Squa

Xelga [282]

Answer:

Superficie de un prisma rectangular fórmula

Área de un prisma rectangular = 2la + 2ah + 2lh.

Step-by-step explanation:

4 0

2 years ago

A pilot flew a 400 mile flight in 2.5 hours flying into the wind. Flying the same rate and with the same wind speed the return t

eduard

Answer: 20 mph

Explanation:

Speed is a physical quantity which is equal to the ratio between the distance covered (d) and the time taken (t):

$v=\frac{d}{t}$

In the first part of the problem, the plane flew a distance of d=400 mi in a time of t=2.5 h. The speed of the plane in this case was the difference between the proper speed of the plane, v, and the speed of the wind, w, since the plane flew opposite to the wind. So we can write:

$v-w=\frac{400mi}{2.5h}=160 mph$ (1)

During the return trip, the plane flew with a speed (v+w), since the wind was on the tail, and it took 2 hours to cover the same distance:

$v+w=\frac{400 mi}{2 h}=200 mph$ (2)

So we have two equations with two unknown variables. From (1), we get

$v=160+w$

Substituting into eq.(2)

$(160+w)+w=200\\160+2w=200\\2w=40\\w=20 mph$

So, the speed of the wind was 20 mph.

3 0

2 years ago

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Which choice is the solution to the inequality below?

Georgia [21]

<h3>hello!</h3>

In order to solve this inequality, we should divide both sides by 9:-

$\sf{9x < 72}$

Why 9? Because x is multiplied by 9, and we need to isolate x in order to find its value.

$\sf{x < 8}$

Hence, that's the solution to the inequality.

<em>It also means that the numbers less than 8 will satisfy the given inequality (make the inequality true)</em>

(Option C is correct :) )

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)

8 0

1 year ago

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When a researcher asked 35 people if they liked a new brand of toilet paper; 22 said 'yes', 8 said 'no' and 5 were 'undecided'.

VARVARA [1.3K]

I guess maybe 5/35 because there are only 5 chances that you could get one of the 5 in the 35 people

6 0

2 years ago

Read 2 more answers

N

artcher [175]

Perpendicular lines have negative reciprocals. This means that if you multiply the slopes of both lines, the product will be a -1.

In your given point-slope equation, the slope is 1/3. Therefore, the negative reciprocal of 1/3 must be -3.

Out of the given options:

y + 2 = -3(x — 4)
y = -3x - 5

are the linear equations that are perpendicular to y — 1 = 1/3(x + 2).

Therefore, the correct answers are Options 1 and 3.

Please mark my answers as the Brainliest if you find my explanations helpful :)

7 0

2 years ago

3x+5+2x^-7+8x-5x^-11x+4-5x+3x^+4+3x-6+2x+x^ ^ = the 2nd power