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BartSMP [9]
3 years ago
14

Please help with these two questions. Really important

Mathematics
1 answer:
shutvik [7]3 years ago
6 0
Complementary angles
26
54
48
39
22
supplementary angles
54
48
2
135
91
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2 years ago
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Find the values of a and b such that x^2-x+5=(x-a)^2+b
Romashka [77]

Answer:

a = 0.5 or 1/2

b = 19/4 or 4.75

Step-by-step explanation:

Step 1: Isolate <em>x</em>'s

x² - x = -5

Step 2: Complete the Square

x² - x + 1/4 = -5 + 1/4

(x - 1/2)² = -19/4

Step 3: Move everything to one side

(x - 0.5)² + 4.75

5 0
2 years ago
An angle measures 6° less than the measure of a complementary angle. what is the measure of each angle?
Sauron [17]
A and 90-a is the measure of the two angles

a=90-a-6
2a=84
a=42
42° and 48°
3 0
3 years ago
A bag contains 5 red marbles, 6 blue marbles and 9 yellow marbles.
lilavasa [31]

Answer:

Step-by-step explanation:

The total number of marbles is 20

Question A

P(Red) = 4/20 = 1/5

P(yellow) = 9/20

P(Red then Yellow) = 1/5 * 9/20 = 9 / 100

Question B

P(B) = 6/20

P(B again) = 5/19 because you  have 1 less total plus 1 less blue.

P(B and B) = 6/20 * 5/19

P(B and B) = 30/ 380 = 3/38

7 0
3 years ago
UnansweredIf Measure of angle a is 155°, what is Measure of angle c?
Gnom [1K]

Answer: 155°

because ∠a and ∠c are 2 opposing angles => m∠a = m∠c = 155°

Step-by-step explanation:

8 0
3 years ago
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