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MariettaO [177]
3 years ago
8

Solve the quadratic equation by using either numeric or a graphic approach x^2 - 14x - 49 = 0

Mathematics
2 answers:
riadik2000 [5.3K]3 years ago
4 0

Answer:

C

Step-by-step explanation:

edge 2021

vagabundo [1.1K]3 years ago
3 0

Answer:

x =  +  -   7\sqrt{2 + 7}

or in decimal form:

x = 16.89 , -2.89

You get this by completing the square.

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A log splitter can split 6/5 cords of wood in 4/5 of an hour. Complete the unit rate by setting up a complex fraction and simpli
Digiron [165]

Answer:

1½ cords per hour

Step-by-step explanation:

A log splitter can split 6/5 cords of wood in 4/5 of an hour.

To find a unit rate, we divide the quantity of cords of wood by the time.

This gives us the complex fraction.

\frac{ \frac{6}{5} }{ \frac{4}{5} }

This is the same as

\frac{6}{5}  \div  \frac{4}{5}

To divide two fractions, we multiply by the reciprocal of the second fraction.

\frac{6}{5}   \times   \frac{5}{4}

\frac{3}{1}   \times   \frac{1}{2}

This simplifies to:

\frac{3}{2}  = 1 \frac{1}{2}

The unit rate is 1.5 cords per hour

3 0
3 years ago
Which expression is equivalent to (3-5x)(3+5x)​
Levart [38]
I think the answer is 9-25x
5 0
3 years ago
2/3+4/7 is it 26/21 or 6/21 or 3/5 or 6/10
Step2247 [10]

Answer:

26/21 = 1 5/20 = 4

5 0
3 years ago
Read 2 more answers
6x - 5 = -47 helpppp
BabaBlast [244]

Answer:

-7

Step-by-step explanation:

6x - 5 = -47           subtract 5 from both sides so the x is alone

6x = -42            divide by 6 so you can find what x equals

x= -7

4 0
4 years ago
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The perimeter of a rectangle is 90 inches. The width of the rectangle is 9 inches less than the length of the rectangle find the
Sphinxa [80]

Answer:

810

Step-by-step explanation:just

just multiply both numbers

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3 years ago
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