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3 years ago

7 d^2 +10 when d = 3

Mathematics

2 answers:

tankabanditka [31]3 years ago

8 0

Hey. Let me help you out

First, let's rewrite the equation in order to minimize confusion. The way you wrote it makes it hard to vision it.

$7d^2+10d=3$

Now, we just replace the variable d with a value we have.

$7(3^2)+10$

Three to the power of two is going to equal to 9.

$7*9+10$

Seven times nine is 63.

$63+10$

Finally, 63 plus 10 is going to be 73.

Answer is 73

user100 [1]3 years ago

5 0

Answer:

d = 3/7 = 0.429

d = 1

Step-by-step explanation:

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3 years ago

The coordinates of the endpoint of QS are Q(-9,8) and S(9,-4). Point R is on cue as such that QR:RS Is in the ratio 1:2. What ar

marishachu [46]

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Step-by-step explanation:

Let Q(-9,8) and S(9,-4) be the given points and let R(x, y) divides QS in the ratio 1:2.

By section formula,

$R(x, y)=R\left(\frac{m x_{2}+n x_{1}}{m+n}, \frac{m y_{2}+n y_{1}}{m+n}\right)$

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Substituting this in the section formula

$R(x, y)=R\left(\frac{1(9)+2(-9)}{1+2}, \frac{1(-4)+2(8)}{1+2}\right)$

To simplifying the expression, we get

$\Rightarrow R(x, y)=R\left(\frac{9-18}{3}, \frac{-4+16}{3}\right)$

$\Rightarrow R(x, y)=R\left(\frac{-9}{3}, \frac{12}{3}\right)$

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Hence, the coordinates of point R is (–3, 4).

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3 years ago

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Answer:

here

Step-by-step explanation:

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WHAT IS 24 DIVIDED BY 48 WITH WORK PLEASE

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So,

$\frac{24}{48}$

Write in prime factored form.
$\frac{2*2*2*3}{2*2*2*2*3}$

Cross-cancel
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