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2 years ago

Evan has a coin collection.

Mathematics

1 answer:

ahrayia [7]2 years ago

4 0

Answer:

$3x + 8 = 44 \\ 3x = 44 - 8 \\ 3x = 36 \\ \frac{3x}{3} = \frac{36}{3 } \\ x = 12$

he has 12 gold coins

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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]

R(–3, 4)

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,

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

Here, $x_{1}=-9, y_{1}=8, \text { and } x_{2}=9, y_{2}=-4 \text { and } m=1, n=2$

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

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

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

⇒ R(x,y) = R(–3,4)

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

6 0

3 years ago

Find the value of x in the triangle shown below. 1 13 2 12 Choose 1 answers

DedPeter [7]

Answer:

x = 5

Step-by-step explanation:

a² + b² = c²

x² + 12² = 13²

x² + 144 = 169

x² = 169 - 144

x² = 25

$\sqrt{x^2} =\sqrt{25}$

x = 5

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3 years ago

A company reimburses employees for a por

mojhsa [17]

The answer is c I think

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2 years ago

How do I solve this finding the first four of the sequence?

nexus9112 [7]

Answer:

- 7, - 3, 1, 5

Step-by-step explanation:

Using the recursive rule and a₁ = - 7, then

a₂ = a₁ + 4 = - 7 + 4 = - 3

a₃ = a₂ + 4 = - 3 + 4 = 1

a₄ = a₃ + 4 = 1 + 4 = 5

The first four terms are - 7, - 3, 1, 5

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3 years ago

Need help please solve 2 log39

Alexeev081 [22]

You just need a calculator.
The answer is 3.1821

Source: A caluculator

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3 years ago