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Tamiku [17]
3 years ago
9

Remove the brackets using the distributive law for the following: -7(2x - 5y)

Mathematics
1 answer:
Fed [463]3 years ago
4 0
The answer is -14x+35
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The product of a number and -3 increased by 8 is 20
Roman55 [17]

Answer:

The answer would be -4.

Step-by-step explanation:

This is because the product of a number and -3 must be 8 less than 20, which is 12. And -3 times -4 is 12.

8 0
4 years ago
How many milligrams is equal to 85 grams?
myrzilka [38]

85,000 milligrams is equal to 85 grams! :)

5 0
3 years ago
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12) A radio transmission tower is 170 feet tall. How long should a guy wire be if it is to be attached 15 feet from the top and
ser-zykov [4K]

The length of guy wire needed to make an angle of 30° with the ground is 310 feet. The angle between the end of the shadow and the vertical side of the building is 23°

<h3>What is trigonometric ratio?</h3>

Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.

a) Let l represent the length of the guy wire.

sin(30) = (170 - 15) / l

l = 310 feet

b) Let Ф represent the angle, hence:

tanФ = 100/230

Ф = 23°

The length of guy wire needed to make an angle of 30° with the ground is 310 feet. The angle between the end of the shadow and the vertical side of the building is 23°

Find out more on trigonometric ratio at: brainly.com/question/24349828

6 0
2 years ago
Hannah wants to buy cupcakes and cookies for her friends with a budget of $35. Cupcakes are $6
Serggg [28]
1. She can buy 5 cupcakes and spend 30 dollars.
2. So she can by 5 more cookies with the rest of her money.
3 0
3 years ago
Solve the proportion <br><br> 12/16 = 3z/4
WITCHER [35]

Answer:

z = 1

Step-by-step explanation:

12/16 = 3z/4

=> 12 x 4/16 = 3z

=> 3z = 12 x 4/16

=> 3z = 12 x 1/4

=> 3z = 3

=> z = 1

5 0
3 years ago
Read 2 more answers
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