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aalyn [17]
3 years ago
15

Can someone please help I can’t figure this out :(

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
6 0

Answer:

78

Step-by-step explanation:

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PLEASE HELP EASY MATH
Alexxx [7]

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.

7 0
3 years ago
What is the domain and y intercept?
bulgar [2K]
Domain (negative infinity to positive infinity)
y - intercept = (0,\sqrt[3]{3})
5 0
3 years ago
Which sum or difference identity could be used to prove that sin(π + q) = -sin q
yan [13]

Answer:

we should know that :

sin ( a + b ) = sin a * cos b + sin b cos a

For the given equation :

sin (π + q) = sin π * cos q + sin q * cos π

sin π = zero and cos π = -1

∴ sin (π + q) = 0 * cos q + sin q * (-1) = - sin q

<u>Another solution:</u>

The angle (π + q) lies in the third quarter ⇒ (1)

(π + q) and (-q) are supplementary angles ⇒ (2)

From (1) and (2)

sin(π + q) = -sin q

4 0
3 years ago
Read 2 more answers
Simplify the following expression: (1 point) 2x − 2y + 5z − 2x − y + 3z
Karo-lina-s [1.5K]

Answer: -3y + 8z

Step-by-step explanation:

2x -2x = 0

-2y + - y= -3y

5z + 3z= 8z

-3y + 8z

4 0
3 years ago
Read 2 more answers
A restaurant has fixed costs of $147.50 per day and an average unit cost of $5.75 for each meal served. If a typical meal costs
Nikolay [14]

Answer:

The answer is 118.

Step-by-step explanation:

First we need to subtract the meal cost from average unit cost for each meal:

7-5.75=1.25

A restaurant profits 1.25$ for each meal. If we divide fixed cost to profit for each meal:

147.5/1.25=118

The restaurant have to sell 118 meals at least each day for the owner to break even

5 0
3 years ago
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