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djverab [1.8K]
3 years ago
15

What is the measure of angle A ?

Mathematics
2 answers:
erastova [34]3 years ago
5 0

Answer:  88 degrees

===========================================

Explanation:

Sides AC and AB are tangents to the circle, so 90 degree angles form at points C and B.

Angle O = 92

Angle B = 90

Angle C = 90

Angle A = unknown

----------

The four interior angles of any convex quadrilateral always add to 360 degrees

(angle O) + (angle A) + (angle B) + (angle C) = 360

92 + A + 90 + 90 = 360

A + 272 = 360

A+272-272 = 360-272

A = 88

-----------

A shortcut is to subtract angle O from 180

angle A = 180 - (angle O)  = 180 - 92 = 88

we get the same answer

Bad White [126]3 years ago
3 0

Answer:25%

It's spit into fourths so yeah

Step-by-step explanation:

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Mark is a coin collector. At the first store he went to, he bought 3 sets of 4 coins. At the second store, he bought 5 sets of 3
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6 0
4 years ago
Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda.
Kisachek [45]

Question

<em>Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda. Part A: Write an equation using one variable that can be used to find the total number of liters of grape juice and lemon-lime soda in the punch. Define the variable used in the equation and solve the equation. Hint: 0.6x represents the number of liters of grape juice in the punch. (5 points) Part B: How many liters of grape juice are present in the punch? Show your work. (5 points)</em>

Answer:


<u>5l = 0.4l(1) + 0.6l(2)</u>


<h2>Step-By-Step-Explenation </h2>

5l = Total litres.

0.4l = 0.4 represents % of lemon-lime soda in litres.

0.6l = 0.6 represents % of grape juice in litres.

For grape juice, make L(1) = 0 and find for L(2), you will get 3L

For lemon-lime soda, make L(2) = 0 and find for L(1), you will get 2L

3L + 2L = 5L.

60% + 40% = 100%

I think this is right but i really tried.!

Hope this helps!




7 0
3 years ago
Read 2 more answers
HELP THIS IS DUE SOON!!!
aev [14]

Answer:

x≥9

Step-by-step explanation:

Pretend the Less than or equal to sign is just an equals sign

-7x+7=-56 Solve:

-7x=-56-7

-7x=-63

For the last step, if you divide a negative number, the Sign switches. So not the sign is greater than or equal to.

x>=9

6 0
3 years ago
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