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Molodets [167]
2 years ago
6

Solve x2 + 14x = -40 by completing the square.

Mathematics
1 answer:
zalisa [80]2 years ago
6 0

Answer: C x=-4 and -10

Step-by-step explanation:

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You have a map where indy and fort wayne are 13 centimeter apart. kokomo and indy are 6.5 cm apart on the map. if you know that
Bond [772]
Since 6.5 is half of 13,you just need to find out what is half of 120,and that would be 60 miles apart,if all three are in a straight line and indy is in the middle,is there a map to go along with this question?

6 0
4 years ago
40
lana66690 [7]

Answer:

55

Step-by-step explanation:

Area of a trapezoid = 1/2 (a+b) x h

= 1/2 (5+17)*5

55 feet.

7 0
3 years ago
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Pablo's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Pablo $5.50 per pound, and type
alexandr402 [8]

Answer:

We know blend A costs 5.50 and blend B costs 4.30. We know that Pablo made 153 pounds of coffee this month. Let's let A=amount of blend A used and B=amount of blend B used. Since he made 153lbs coffee, we know that

A+B=153.

But he spent 756.30. The total amount he spent on a blend of coffee is the price * amount used. So he spent 5.50*A on blend A and 4.30*B on B, so in total, he spent 5.50*A+4.30*B in coffee. But this must add to 756.30! So

5.5A+4.3B = 756.30

Now we have two equations:

A+B = 153

5.5A + 4.3B = 756.30

We need to solve for B. I hate decimals so let's get rid of them in the second equation by multiplying both sides of the equation by 100 (which simply moves the decimals on everything two to the right). So now we have

A+B = 153

550A + 430 B = 75630

Now let's multiply the first equation by 550 (so we can eventually get rid of pesky A). So multiply the left and right side of the first equation by 550, so we have

550A + 550B = 84150

550A + 430B = 75630

Now subtract the second equation from the first, notice that since both have 550A, they cancel, so we obtain

120B = 8520

Now divide by 120 into both sides to solve for B, we get

B= 8520/120 = 71

So Pablo used 71lbs of blend B.

Step-by-step explanation:

Hope this helps you!!!!! :D

8 0
3 years ago
NEED ANSWER QUICK WITH STEP BY STEP!!!
Elden [556K]
Y-y(1) = m(x - x(1))

y - 1 = (-3/4)(x + 8)
3 0
3 years ago
The change of base formula is used to calculate a wider range of logarithms. True False
juin [17]
Your answer would be 

True

Hope I helped!
6 0
4 years ago
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