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saw5 [17]
2 years ago
13

Helpppppp pleaseeeee

Mathematics
1 answer:
svp [43]2 years ago
7 0

Step-by-step explanation:

1. Given angles are,

40°, 3x+8° , 10x+42°

Therefore, by the problem,

=> 40° + 3x+8° + 10x+42° = 180° [Angle sum property of triangle]

=> 3x + 10x = 180° - (40°+42°+8°)

=> 13x = 180° - 90°

=> 13x = 90°

=  > x =  \frac{90}{13}

<u>Hence required value of x is (90/13)°</u>

2. Given,

12x - 18° = 5x +19° [Alternate angles]

=> 12x - 5x = 19 + 18

=> 7x = 37

=  > x =  \frac{37}{7}

<u>Hence required value of x is (37/7)°</u>

3. Given,

Exterior angle 132°

So it's paired interior angle will be = 180° - 132° (linear pair) = 48°

Hence the angles we get are = 42° , 87° , 20x - 10°

Therefore, by the problem,

48° + 87° + 20x - 10° = 180° [Angle sum property of triangle]

=> 20x = 180 - 48 - 87 + 10

=> 20x = 55

=  > x =  \frac{55}{20}

=> x = 2.75

<u>Hence required value of x is </u><u>2.75</u>

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Hi I hope you are all okay could someone help me with this math question thankyou !!!
earnstyle [38]

Answer:

x = 49

Step-by-step explanation:

Given the mathematical expression and data;

y = 1/√x

y = 7 and x = 64

First of all, we would find the constant of proportionality, k;

y = k/√x

7 = k/√64

7 = k/8

k = 7 * 8

k = 56

Next, to find the value of x, when y = 8

y = k/√x

Substituting the values, we have;

8 = 56/√x

Cross-multiplying, we have;

8 * √x = 56

√x = 56/8

√x = 7

Taking the square of both sides, we have;

(√x)² = 7²

x = 49

8 0
3 years ago
BASED ON WHAT U KNOW ALREADY What are your thoughts about avoiding high dopamine activities in order to make other activities fe
musickatia [10]

i dont know, my personal thoughts is that I will not do it:)

8 0
3 years ago
Read 2 more answers
What number will the function return if the input is 15.4?
wlad13 [49]

The rule of the function is to multiply the input by 3, since one yard is equal in length to three feet.

So, if the input is 15.4, the output will be

f(x)=3x \implies f(15.4)=3\cdot 15.4 = 46.2

4 0
3 years ago
A three-dimensional model of lucia’s apartment is shown. to cool the whole apartment, an air conditioner must provide 2.5 btus p
SashulF [63]

The number of btus which are needed to cool Lucia’s apartment shown in the three-dimensional model are 20,400 btus.

<h3>What is of volume of rectangular prism?</h3>

Volume of rectangular prism is the amount of quantity, which is obtained in it in the 3 dimensional space.

Volume of a rectangular prism is the product of its width, height and length.

V=w\times h\times l

Here, (w) is the width of the base (l) is the length and (h) is the height of the rectangular prism.

A three-dimensional model of Lucia’s apartment is shown. The image is attached below for the apartment. The three section are there in the apartment. The volume of this apartment is,

V=[(20\times12)+(20-9)\times16+(20\times20)]\times10\\V=8160\rm\; ft^3

To cool the whole apartment, an air conditioner must provide 2.5 btus per cubic foot. To cool, the 8160 cubic foot apartment the btus needed are,

n=8160\times2.5\\n=20400\rm\; btus

Hence, the number of btus which are needed to cool Lucia’s apartment shown in the three-dimensional model are 20,400 btus.



Learn more about the volume of a rectangular prism here;

brainly.com/question/4016105

5 0
2 years ago
URGENT
Ivan

This is a question of proportions:

First we can work out how many feet it goes up for each feet he steps back:

5.5/6 ft per each feet he steps back.

Now we can multiply this by the amount of ft back the cliff is:

(5.5/6)*30 = 27.5 ft

Thus the cliff is 27.5 ft tall,

Hope this helps :)

3 0
3 years ago
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