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Yuki888 [10]
3 years ago
9

Evaluate for x = 7. A) -49 B) 1/49 C) 49

Mathematics
1 answer:
stepladder [879]3 years ago
8 0
I think the answer is c
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What is the answer for m^2-5m-14=0?
tensa zangetsu [6.8K]

Answer: m = 7 or -2

Step-by-step explanation:

Quadratic Formula!  \frac{{-b (+/-)\sqrt{(b^{2}-4ac }}}{2a}

Polynomial Form: ax^{2} +bx+c

So in this example a: 1  b: -5  c: -14

You get:\frac{{-(-5) (+/-)\sqrt{((-5)^{2}-4(1)(-14) }}}{2(1)}

m = 7 or -2

Check by plugging a value back in for m

(7)^{2} -5(7)-14=0?\\(-2)^{2} -5(-2)-14=0?\\

True for both.

3 0
3 years ago
if you have budgeted 12% of your monthly income for groceries how much can you spend on groceries if you earn 950 bi-weekly
Leviafan [203]

Answer:

$247

Step-by-step explanation:

It depends.

Most months, you will earn $1900, so your budget will be ...

... 12% × $1900 = $228.

In one month out of 6, you will earn $2850, so your budget can be ...

... 12% × $2850 = $342.

_____

If you average out your earnings over 6 months, and compute your budget on that basis, then your monthly grocery budget is ...

... ($950 × 13)/6 × 12% = $247

7 0
3 years ago
128/5 square root<br> It's for test corrections
Alchen [17]
The square root of 128/5 is 5.059644
Hope this helped!
8 0
3 years ago
A pharmacy wants to survey its customers to find out which brand of toothpaste they prefer. Which survey methods are likely to b
iVinArrow [24]
C- Often times, if someone is using a coupon, they just want the lowest price and don't care what toothpaste is considered "the Best."
6 0
3 years ago
Find the perimeter of the given rectangle: 5x - 9 by 7
amid [387]

Answer:

x=12.6

Step-by-step explanation:

5x -9 / 7

5x= -9x7

5x= -63

x= -63/5 = -12.6

x= -12.6

5 0
2 years ago
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