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nexus9112 [7]
3 years ago
9

If using the method of completing the square to solve the quadratic equation, which number would have to be added to “complete t

he square”?
X^2+7x-4=0
Mathematics
1 answer:
Anna11 [10]3 years ago
6 0
The answer is 80 because you add then subtract
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The low temperature on Monday was 16°F. On Tuesday, the low was 18°F cooler. On Wednesday, the low temperature was –4 times Tues
drek231 [11]

Answer:

-4(16-18), [16 + (-18)](-4)

Step-by-step explanation:

Given: The low temperature on Monday was 16°F. The low temperature on Tuesday was 18°F cooler. The low temperature on Wednesday was –4 times Tuesday’s temperature.

To find: expression that can be used to describe the low temperature on Wednesday

Solution:

Temperature on Monday = 16°F

So,

Temperature on Tuesday = (16-18)\°F

Temperature on Wednesday = -4(16-18)\°F

So, expression -4(16-18)=(16-18)(-4) can be used to describe the low temperature on Wednesday.

Also,

(16-18)(-4)=[16 + (-18)](-4)\,\,\left \{\because  (a-b)=\left [ a+(-b) \right ] \right \}

So, expression [16 + (-18)](-4) also represent temperature on Wednesday.

3 0
3 years ago
Read 2 more answers
The profit at a chocolate shop can be represented using the function f(x)=3x−95, where x is the number of chocolate truffles sol
xz_007 [3.2K]
The slope is the constant rate of change. In this case, the number is being multiplied by 3 each time

The slope is 3
“x represents number of chocolate truffles sold each day”
Represents amount of chocolate truffles sold per day
7 0
2 years ago
Brainlyist to whoever answers first
levacccp [35]

Answer:

The answer is 106

Step-by-step explanation:

angle B is equal to angle D

so do 91 + 15= 106

and the math at angle D is x - 15

hope this helps! :D


8 0
2 years ago
Read 2 more answers
Use a similar strategy to solve this problem.
Cerrena [4.2K]
Gallons! gallons!! GALLONS!!! GALLONSSS!!!! hahaha. They're all the same so C. gallons. :).....xD
6 0
2 years ago
(m-2)÷5=(m-4)÷3 Please give a step by step​
abruzzese [7]

3(m-2)=5(m-4)

3m-6=5m-20

3m-5m=-20+6

-2m=-14

-m=-7

m=7

I hope this is what you need..

4 0
3 years ago
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