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Fofino [41]
3 years ago
12

What is 9+9 Will give branliest if correct!!

Mathematics
1 answer:
Sonja [21]3 years ago
8 0

Answer:18

Step-by-step explanation:

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Sonia is buying presents for her 3 younger brothers she wants each boy to have 4 toys how many toys will she need to buy .
otez555 [7]

Answer:

12

Step-by-step explanation:

she has 3 brothers times 4 toys.

6 0
3 years ago
Read 2 more answers
Ivan purchased stock in a company at an initial price of $8 per share. The share value reached $18 after 10 days and then began
Butoxors [25]

The quadratic equation that best represents his model of the relationship between stock value and time is given by:

y = -0.0976(x - 10)^2 + 18, x \geq 0

The graph is given at the end of the answer.

<h3>What is the equation of a parabola given it’s vertex?</h3>

The equation of a quadratic function, of vertex (h,k), is given by:

y = a(x - h)^2 + k

In which a is the leading coefficient.

In this problem, the maximum value was a share value of $18 after 10 days, hence the vertex is:

(h,k) = (10,18).

Thus:

y = a(x - 10)^2 + 18

Since the initial price was of $8 per share, we have that:

8 = a(0 - 10)^2 + 18

-82a = 8

a = -\frac{8}{82}

a = -0.0976

Hence the equation is:

y = -0.0976(x - 10)^2 + 18, x \geq 0

At the end of the answer, the sketch of the graph is given.

More can be learned about quadratic equations at brainly.com/question/24737967

6 0
3 years ago
Which number is the largest-10; -5; -1/2 (-0.50) -1/3 (-0.33)
astra-53 [7]
(-10)>(-5)>(-0.11)>(1/4), so (-1/2)*(-0.5) is the largest
8 0
3 years ago
12 - (-7)<br> I don’t know why but this is making my head spin because it’s not 5
adell [148]

Answer:

<u> </u><u>1</u><u>9</u><u> </u>

Step-by-step explanation:

=> 12 - (-7)

=> 12 + 7

=<u> </u><u>1</u><u>9</u><u> </u>

3 0
3 years ago
Read 2 more answers
Nina's grandmother deposits 3000 into a saving account for her account pays 5.5% simple interest on an annual basis if she does
sashaice [31]

Answer:

$288.8

Step-by-step explanation:

Using I=Prt, we know that the 3000 is the P, 5.5% is the r, and 21 months is the t. The t goes by years, so 21 months=1.75 years. To find the interest, we do 3000*5.5%*1.75 which is 288.75. Then the problem requires you to round to the nearest tenth, so now, the answer is $288.8

8 0
3 years ago
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