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Fudgin [204]
3 years ago
9

What is the value of x?

Mathematics
2 answers:
Yuliya22 [10]3 years ago
8 0

Answer:

As two angles are equal pf the two triangles , they are similar

Thus

40/x = 32/4

40/x = 8

x = 5

tatyana61 [14]3 years ago
3 0

Answer:

x=5cm

Step-by-step explanation:

according to the picture , those two triangles are similar triangles,

so their three sides should be proportional

then :

32/4=40/x

8=40/x

x=5

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Find small changes in cube's volume when its side increses from 10 cm to 10.1 cm
garik1379 [7]

Answer:

1030 cm^3 (1030.30 cm^3)

Step-by-step explanation:

The volume of a cube is a side length cubed (x^3).

If you have a side of 10 cm (10^3 = 1000) the volume would be 1000 cm^3. To find the volume of a cube with side lengths 10.1 cm, use the formula x^3.

10.1^3 --> (10.1)(10.1)(10.1) = 1030.301

The cube would be 1030.30 cm^3, or if rounded to the nearest whole number 1030 cm^3.

7 0
3 years ago
Read 2 more answers
a rectangle swimming pool is 9 meters wide with a surface area of 3 square meters. what is the length of the pool?
yarga [219]
L*w=A
l*9=3
(l*9)/9=3/9
l=1/3 of a meter.
7 0
3 years ago
Your teacher is giving a test worth 200 points. There are a total of 32 four-point and
adelina 88 [10]
A+b=32
4a+7b=200

a = 15
b = 20

There are 15 four pointers and 20 seven pointers. You can plug in the numbers to check.

I believe this is correct. If not i am extremely sorry.
Have a wonderful day :)
6 0
2 years ago
Read 2 more answers
Solve the following problem. Round the one decimal place if necssary.
dmitriy555 [2]

Cosθ = adjacent / hypotenuse

\cos(47)  =  \frac{28}{x}  \\ 0.68 =  \frac{28}{x}  \\ x =  \frac{28}{0.68}  \\ x = 41.1 \\ x = 41

I hope I helped you^_^

5 0
2 years ago
9. How many gallons of paint will you need to buy if you are painting a room that is 30 ft by
pentagon [3]

Answer:

To paint the room with dimension 30 ft by 50 ft by 50 ft is 26.67 gallon    

Step-by-step explanation:

Given as :

The Length of wall = L = 50 ft

The width of wall   = W = 30 ft

The height of wall  = H = 50 ft

Each gallon of paints should cover 300 sq feet

Let the amount o gallon required to paint the room = x

SO, Area of four wall = 2 × ( L + W ) × H

Or, Area of four wall = 2 × ( 50 + 30 ) × 50

Or, Area of four wall = 2 × ( 80 ) × 50

SO, Area of four wall = 8000  ft²

∵ To paint 300 sq ft the amount of paint required = 1 gallon

∴ To paint 8000 sq ft the amount of paint required = 26.67 gallon

Hence ,to paint the room with dimension 30 ft by 50 ft by 50 ft is 26.67 gallon      answer  

6 0
3 years ago
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