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aalyn [17]
3 years ago
10

For what value of b will f(x)= x^2 + bx + 900 have -30 as its only zero? PLEASE HELP!!

Mathematics
1 answer:
kiruha [24]3 years ago
7 0

Answer:

60

Step-by-step explanation:

If -30 is its only zero, than the factors are (x+30)(x+30) = x^2 + 60x + 900

Than b = 60

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An incoming airplane is x miles due north from the control tower at an airport. A second incoming airplane is y miles due east o
MAVERICK [17]

Answer:

B. Square root

Step-by-step explanation:

using distance formula:

x = √z^2 - y^2

y = √z^2 - x^2

=> z = √x^2 + y^2

5 0
3 years ago
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Estimate 62% of 196.<br> A. 80<br> B. 100<br> C. 120<br> O D. 140<br> HURRY PLEASE
Mrac [35]

Answer:

The answer is C: 120

Step-by-step explanation:

Ok so to solve this, you need to know that when "of" is in an equation, it always means multiply.

So 62% of 196 = 62% * 196.

62%  * 196 = 121.52

Then you need to round 121.52 to the nearest option, which is Option C: 120.

Good luck on your assignment (or whatever this is)!! Have a nice day!!

3 0
2 years ago
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During February, Kevin will water has ivy every third day, and water his cactus every fifth day. On which date will Kevin first
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5 0
3 years ago
1/3y+11=1/2y-3<br><br> What is y???
JulijaS [17]

Answer:

y = 84

Step-by-step explanation:

1) add 3 to both sides of your equation to cancel out the -3

end up with: (1/3)y + 14 = (1/2)y

2) multiply both sides of your equation by 2 to cancel out the (1/2)

end up with: (2/3)y + 28 = y

3) subtract (2/3)y from both sides of the equation to cancel out the positive (2/3)y

end up with: 28 = (1/3)y

4) multiply both sides of the equation by 3 to cancel out the (1/3)

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6 0
3 years ago
What is the solution to the linear equation 4b + 6 = 2 - b+ 4
inessss [21]

Final Answer: b = 0

Steps/Reasons/Explanation:

Question: What is the solution to the linear equation 4b + 6 = 2 - b + 4?

<u>Step 1</u>: Simplify 2 - b + 4 to 6 - b.

4b + 6 = 6 - b

<u>Step 2</u>: Cancel 6 on both sides.

4b = -b

<u>Step 3</u>: Subtract -b from both sides.

4b + b = 0

<u>Step 4</u>: Simplify 4b + b to 5b.

5b = 0

<u>Step 5</u>: Divide both sides by 5.

b = 0

~I hope I helped you :)~

5 0
3 years ago
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