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3 years ago

-2-|-5|+(-6)-(-2 ).

Mathematics

2 answers:

Elanso [62]3 years ago

3 0

I believe it is just a simple -7

atroni [7]3 years ago

3 0

-2 - |-5| + (-6) - (-2)
Take the absolute value of 5
-2 - 5 + (-6) - (-2)
Combine -2 and 5
-7 + (-6) - (-2)
Combine -6 and -2
-7 - 4

And finally, the answer is

-11

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Can anyone help with 20-22?

aliina [53]

Answer:

zx would equal 19 as well

wt=4.5

wy=19

Step-by-step explanation:

this is easy speacily since i am in 8th grade lol

3 0

3 years ago

One of the diagonals of a rhombus of perimeter 120m is 36m. Find its area and the length of the other diagonal. pls answer fastt

mash [69]

Answer: $864\ m^2,\ 24\ m$

Step-by-step explanation:

Given

Perimeter of the rhombus is $120\ m$

Length of one of the diagonal is $d_1=36\ m$

All the sides of the rhombus are equal

$\Rightarrow 4a=120\\\Rightarrow a=30\ m$

Area of the rhombus with side and one diagonal is

$\Rightarrow \text{Area=}\dfrac{1}{2}d\sqrt{4a^2-d^2}$

Insert the values

$\Rightarrow \text{Area=}\dfrac{1}{2}\times 36\times \sqrt{4\cdot 30^2-36^2}\\\\\Rightarrow \text{Area= }18\sqrt{3600-1296}\\\Rightarrow \text{Area= }18\times 48\\\Rightarrow \text{Area= }864\ m^2$

Area with two diagonals length can be given by

$\Rightarrow \text{Area =}0.5\times d_1\times d_2 \\\text{Insert the values}\\\Rightarrow 864=36\times d_2\\\Rightarrow d_2=24\ m$

Thus, the area of the rhombus is $864\ m^2$ and the length of the other diagonal is $24\ m$

4 0

3 years ago

The perimeter of a rectangle is 40 inches. If the length is four less than twice the width, find the dimensions and area

Vinvika [58]

Answer:

L = 12 inches and W = 8 inches

Area = 96 in^2

Step-by-step explanation:

Perimeter(P) = 2(width) + 2(length)

Let W = width and L = length

P = 2W + 2L

L = 2W - 4

Substitute: P = 2W + 2(2W - 4)

P = 6W - 8

P = 40 inches

40 = 6W - 8

6W = 48

W = 8

L = 2W - 4

L = 2(8) - 4

L = 12

L = 12 inches and W = 8 inches

===============================

Check to see if this works:

P = 2W + 2L

P = 2(12) + 2(8)

P = 24 + 16

P = 40 inches YES

========

Area = WxL

Area = (12)*(8)

Area = 96 in^2

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2 years ago

Tap on the photo pls help

DerKrebs [107]

Answer:

Step-by-step explanation:

5^2 - 4(-3)(2)

5^2 - 4(-6)

25 - 4(-6)

25 - (-24)

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8 0

3 years ago

Read 2 more answers

g Gravel is being dumped from a conveyor belt at a rate of 40 cubic feet per minute. It forms a pile in the shape of a right cir

Zepler [3.9K]

Answer:

$\frac{16}{10\pi}$ feet per minute.

Explanation:

We have been given that g Gravel is being dumped from a conveyor belt at a rate of 40 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal.

This means that 2 times radius is equal to height that is $2r=h$ .