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krok68 [10]
3 years ago
9

The only solution of the equation x2 + bx + 16 = 0 is x = 4. What is the value of b?

Mathematics
2 answers:
denis23 [38]3 years ago
4 0

Answer:

88

Step-by-step explanation:

x2+bx+16=0

4x2+16x4+16=0

8+64+16=0

72+16=0

88

Jlenok [28]3 years ago
4 0

Answer:

guys the answer is c.. on EDG at least trust me i just did it

Step-by-step explanation:

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Sum of 2 numbers is 42, and their difference is 8. What are the numbers?​
Tems11 [23]

Answer:

25 , 17

Step-by-step explanation:

Let the unknown two numbers be x & y.

According to the question,

Sum of 2 numbers is 42.

x + y = 42  ⇒ ( 1 )

Their difference is 8.

x - y = 8 ⇒ ( 2 )

First let us find the value of x.

( 1 ) + ( 2 )

x + y + x - y = 42 + 8

2x = 50

Divide both sides by 2.

x = 25

And now let us find the value of y.

x + y = 42

25 + y = 42

y = 42 - 25

y = 17

Therefore, the two numbers are 25 , 17

Hope this helps you :-)

Let me know if you have any other questions :-)

8 0
3 years ago
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kumpel [21]
3% is the percent increase
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What is the measure of angle R?<br> A. 30°<br> B. 50°<br> C. 100°<br> D. 180°
Ivenika [448]

Answer:

100

Step-by-step explanation:

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Volgvan

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Step-by-step explanation:

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