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Montano1993 [528]
3 years ago
15

H E L P P P P P P P PP P P P P P P P P P P P PP. PP. P PP P P P P P P P P P P P P P P P P PP P. PP P P P P P P P. P P

Mathematics
2 answers:
Anni [7]3 years ago
5 0
X=69 for the second one
Oxana [17]3 years ago
3 0

Answer:

x≈7.5

Step-by-step explanation:

Part A:

Let's call the missing side of x:

5²+x²=9²

25+x²=81

x²=56

x= square root of 56

x≈7.5

Part B:

The sum of the internal angles of a triangle is always 180°, and the square in the top angle means that it is 90°, so:

90°+21°+y=180°

y=180°-90°-21°

y=69°

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1/2×-7=1/3(×-12) solve​
alexgriva [62]

Answer:

X=18

Step-by-step explanation:

(1/2)*x-7 = (1/3)*(x-12) // - (1/3)*(x-12)

(1/2)*x-((1/3)*(x-12))-7 = 0

(-1/3)*(x-12)+(1/2)*x-7 = 0

x/2-1/3*(x-12)-7 = 0

(-1/3*2*(x-12))/2+x/2+(-7*2)/2 = 0

x-1/3*2*(x-12)-7*2 = 0

1/3*x-14+8 = 0

1/3*x-6 = 0

(1/3*x-6)/2 = 0

(1/3*x-6)/2 = 0 // * 2

1/3*x-6 = 0

1/3*x-6 = 0 // + 6

1/3*x = 6 // : 1/3

x = 6/1/3

x = 18

8 0
3 years ago
I need the anwser and the fractions
alexandr1967 [171]

Answer:

5.5/3 - 3/1 = 2.5/3

7 0
3 years ago
If y is directly proportional to x and if y = 20 when x = 6, what is the value of y when x = 9 ?
11Alexandr11 [23.1K]
E - 30. From 6 to 9 is increase of 1.5times
4 0
3 years ago
Please answer the following;
34kurt

The Surface area of the cube will be 433.5 square feet.  Then the correct option is C.

<h3>What is a surface area of a cube?</h3>

Suppose that: The side length of the considered cube is L units. Then, we get:

Surface area of that cube = 6L² square units.

Bella is wrapping a cube shape box that measures 8.5 inches along each side.

The edge length of the cube is 8.5 meters.

Then the Surface area of the cube will be

Surface area = 6 x 8.5²

Surface area = 6 x 72.25

Surface area = 433.5 square feet

The Surface area of the cube will be 433.5 square feet.

Then the correct option is C.

More about the surface area of the cube link is given below.

brainly.com/question/13789496

#SPJ1

6 0
2 years ago
For numbers 1a-1d, tell wheaten the fractions are equivalent by selecting the correct symbol
Deffense [45]
What fractions? I see nothing...Do you have the choices?
5 0
3 years ago
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