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11111nata11111 [884]
3 years ago
11

Estimate the sum Round Each Number Add The Two 10s. Use smart second grade strategy 9+73

Mathematics
1 answer:
Sever21 [200]3 years ago
3 0
I added 9+73 and I got 82
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Find the measure of the missing angles .
11Alexandr11 [23.1K]

Answer:

x = 29°, y = 61°

Step-by-step explanation:

x + 61 = 90

Because of the right angle symbol

x = 90 - 61

x = 29°

x + y = 90

Because vertically opposite angles are equal

29 + y = 90

y = 90 - 29

y = 61°

6 0
2 years ago
Please help quick, if you can please show work<br> Find x.
Alja [10]

Answer:

4

Step-by-step explanation:

6 0
3 years ago
PLLEASE ANSWER THIS FOR ME
stiv31 [10]

Answer:

<h2>120 square meters</h2>

Step-by-step explanation:

To find the SA of 2 Triangles, we will use the formula... B x H, and the Base and Height is going to be the dimensions of just 1 triangle, but it's going to give the answer for 2 triangles, in this shape, we have 2 triangles.

SA = B x H

= 6 x 4

= 24

24 square meters for both of the triangles

Now, let's find the SA of the rectangle on the bottom...

SA = L x W

= 6 x 6

= 36

36 square meters for 1 of the 3 rectangular parts, the one on the bottom

Now, lets find the SA of the 2 rectangles on the top. We'll use the dimensions of 1 rectangle and find the answer for 2 answers by using the formula...

SA = L x W x 2

= 6 x 5 x 2

= 30 x 2

= 60

60 square meters for the 2 rectangles on the top.

Now, we have to add all of our answers.

24 + 36 + 60 = 120 square meters

<h2>Hence, the SA (surface area) of this shape is 120 square meters.</h2>

~Brainly Master - Helping Students~

4 0
3 years ago
A thermal insulated sleeve is used to cover the lateral surface of a hot water heater to help improve efficiency. The hot water
hjlf

Answer:

V=18,369\ in^3

Step-by-step explanation:

step 1

Find the lateral surface of the cylinder (hot water tank)

The lateral area is given by the formula

LA=2\pi r h

we have

r=13\ in\\h=75\ in

substitute

LA=2\pi (13)(75)

LA=1,950 \pi\ in^2

step 2

Find the volume of fiberglass composite needed

Multiply the lateral area by the thick

V=1,950 \pi (3)

V=5,850 \pi\ in^3 -----> exact value

assume

\pi=3.14

V=5,850(3.14)=18,369\ in^3

3 0
4 years ago
A student conlcuded that the soulion the eqution how do you agree explian why are why not 2x+1+3=0 Is x=4
MaRussiya [10]
Solving the equation:
2x+1+3=0
2x+4=0
2x+4-4=0-4
2x=-4
2x/2=-4/2
x=-2

Therefore, the student that concluded x=4 is incorrect. 
3 0
4 years ago
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