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3 years ago

Simplify. usa test prep ✓16 + ✓40

Mathematics

1 answer:

Travka [436]3 years ago

5 0

Answer:

Step-by-step explanation:

First factorise 16 and 40

$\sqrt{16}+\sqrt{40}=\sqrt{4*4}+\sqrt{2*2*2*5}\\\\= 4 +2*\sqrt{2*5}\\\\= 4 +2\sqrt{10}$

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What is the answer to this question really need the answer

jeyben [28]

Answer:

A, B, D

Step-by-step explanation:

2 x 3x =6x - 2 times 9y which equals 18y+ and 2 times 18 equals 36 so 2(3x-9y+18)

3 0

3 years ago

Find the angle measure of angle E in Triangle DEF if angle D is 34 degrees & angle E is 117 degrees.

Sliva [168]

Answer:

Step-by-step explanation:

full angle of a triangle is 180 and 34+177=151 then you just do 180-151=29.

4 0

3 years ago

How many questions would I have to miss on a 25 question test to get 88% ?

N76 [4]

Let's start with the question, how many questions do you need to get 88%?

so were are looking for
?/25 = 88% and 88% is also 0.88 so we can multiply 25 by 0.88

we get 22

But this doesn't here. the question asks us how many mistakes do you need. you can just subtract 22 from 25

25-22= 3
you need 3 misses to get 88%

7 0

3 years ago

The combined age of three sisters is 74. The eldest sisters age is twelve less than the sum of both sisters age. The middle sist

Anni [7]

Answer:

Step-by-step explanation:

let their ages be x,y,z and x>y>z

x+y+z=74 ...(1)

x=(y+z)-12

or x-y-z=-12 ...(2)

y=z+5 ...(3)

add (1) and (2)

2x=62

x=62/2=31

from (1)

31+y+z=74

y+z=74-31=43

substitute from (3)

z+5+z=43

2z=43-5=38

z=38/2=19

y=19+5=24

so their ages are 31,24 and 19

4 0

3 years ago

If both sides of a gable roof are the same size, and one side of the roof measures 15'x 36*, how many squares of 16" x 5/2" wood

kogti [31]

Approximately 3 shingles used to cove the area of the roof.

According to the statement

we have to find the number of shingles used to cover the roof.

So, For this purpose, we know that the

one side of the roof measures 15'x 36

And we have given that the both sides of a gable roof are the same size.

So, For this purpose,

The roof is a of a rectangle shape so,

Area of rectangle = 2(L+B)

Then

Area of rectangle = 2(L+B)

Area of rectangle = 2(15+36)

Area of rectangle = 102 ft.

Then

Area of shingles = 2(L+B)

Area of shingles = 2(16+2.5)

Area of shingles = 37

then number of shingles used = 37/102

So, Approximately 3 shingles used to cove the area of the roof.

Learn more about Area here

brainly.com/question/6613758

#SPJ4

4 0

2 years ago