3 years ago

7.12 Equations quiz answers for k12

Mathematics

1 answer:

Darya [45]3 years ago

5 0

Answer:

7.12 equations? K12? whats that

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Please help me with this math question ASAP !!!!!!

stepan [7]

The answer to the question is b

y = (x-5)^2

y = x^2-10x+25

5 0

2 years ago

V<img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D%20%2A%202%5Cfrac%7B1%7D%7B3%7D" id="TexFormula1" title="\frac{3}{4} * 2

myrzilka [38]

Answer:

$1\frac{3}{4}$

Step-by-step explanation:

In order to find the answer, you first need to convert the mixed number (2 1/3) into a improper fraction and then multiply.

$\frac{3}{4} \times2\frac{1}{3}$

$2\frac{1}{3} =3\times2=6+1=7=\frac{7}{3}$

$\frac{3}{4} \times\frac{7}{3}$

$3\times7=21$

$4\times3=12$

$=\frac{21}{12} =\frac{7}{4} =1\frac{3}{4}$

$=1\frac{3}{4}$

Hope this helps.

7 0

2 years ago

If $12.000 is invested in an account in which the interest earned is continuously

kykrilka [37]

Answer:

If 12,000 are put at an account with 2.5% compound interest in 15 years your total would be $17,379.58

7 0

2 years ago

Divide 794.1 by 7.61 Point round off your answer to two decimal places

dolphi86 [110]

<span>By dividing the two numbers we get 104.3495... Rounding this number to two decimal places means that we must keep just 2 digits after the "." symbol, and round the last one of them. In our case, 104.3495... becomes 104.35.</span>

5 0

3 years ago

HELP !!! Evaluate f(-2) for the function f(x) = 3x2 + 2x - 5

Phoenix [80]

Answer:

Step-by-step explanation:

So we have the function:

$f(x)=3x^2+2x-5$

To evaluate the value of f(-2), substitute -2 for x. Thus:

$f(-2)=3(-2)^2+2(-2)-5$

Square first:

$f(-2)=3(4)+2(-2)-5$

Multiply:

$f(-2)=12-4-5$

Now, subtract:

$f(-2)=8-5=3$

So:

$f(-2)=3$

And we're done!

4 0

2 years ago