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sladkih [1.3K]
3 years ago
13

PLEASE HELP EASY MATH

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0

Answer:90

Step-by-step explanation:

When the sum of two angles is 90°, then the angles are known as complementary angles. In other words, if two angles add up to form a right angle, then these angles are referred to as complementary angles.

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When 9/10 is divided by 2/5 , will the quotient be greater than 1 or less than 1.
Feliz [49]
9/10 * 5/2 = 45/20
The quotient will be greater than 1
3 0
3 years ago
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A right triangle has legs that are 21 in. and 25 in. long. What is the area of the triangle?
vfiekz [6]

Answer:

The area of the right triangle is 262.5

Step-by-step explanation:

6 0
3 years ago
leah would like to earn at least $160 per month. She works at a restaurant for $5 an hour and works at an ice cream shop for $8
Ne4ueva [31]

Answer:

Leah can make more than $160 in a month if he works 7 hours for $35 and 10 hours for $80 daily or weekly.

Step-by-step explanation:

7 0
3 years ago
Can you solve it ????
Dima020 [189]
Angle ABD=87 degrees
angle ABC+angle CBD= angle ABD
Therefore, 9x-1+6x+58=87
15x+57=87
15x=87-57
15x=30
x=30/15
x=2   


Angle ABC= 9x-1
=9(2)-1
=18-1
=17 degrees


7 0
3 years ago
A dose of a new pharmaceutical drug is decaying according to the half-life model f(t) = Ne-0.2174, where N is the dose
Rudiy27

Answer:

  14.7

Step-by-step explanation:

Perhaps your equation is ...

  f(t) = N·e^(-0.2174t)

We want f(6) = 4, so ...

  4 = N·e^(-0.2174·6) = N·e^-1.3044 ≈ 0.2713N

  N = 4/0.2713 = 14.7 . . . . milligrams

The dose amount was about 14.7 mg.

6 0
3 years ago
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