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rosijanka [135]
3 years ago
8

Find the values of k that make 2x^2 + kx + 5 factorable.. . A.. 1 or 10. . B.. 2 or 5. . C.. 7 or 11. . D.. 1 or 5

Mathematics
2 answers:
Damm [24]3 years ago
4 0
Test them
1 doesn't work, so cross out A and D
2 doesn't work cross out B
answer is C

andreev551 [17]3 years ago
4 0
The third term of the quadratic equation, also called the constant, is the product of the roots of the equations. Among the choices, only letter D. 1 or 5, will give a product of 5. All the rest of the choices do not satisfy the condition. 
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Trigonometry help?? Thank you so much!!
liq [111]

Answer:

7) a = 60; b = 100

8) c = 20

9) d = 45

Step-by-step explanation:

7)

a + 120 = 180

a = 60

b + 80 = 180

b = 100

8)

5c + 4c = 180

9c = 180

c = 20

9)

3d + d = 180

4d = 180

d = 45

6 0
3 years ago
Please help me with both problems thank you so much!!
motikmotik
The one on the left is -5/6
The one on the right is 1/21
6 0
2 years ago
Read 2 more answers
What’s 9+10?????????????????<br><br><br> ?
Aleks [24]

Answer:

19

Step-by-step explanation:

9+10=19

8 0
3 years ago
A baker sells a dozen for &amp;3.99 the cost of to make three donuts is $0.45 how much is the total profit on 5 dozen donuts?
Ber [7]
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5 0
3 years ago
42 ÷ 1 1<br> -<br> 2<br><br> is equal to
Bad White [126]

Step-by-step explanation:

or alternative answer is 1.818181...

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2 years ago
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