2 years ago

Which system of equations is represented by the graph?

Mathematics

1 answer:

sertanlavr [38]2 years ago

4 0

Answer:

Step-by-step explanation:

Since we know that both parabolas are on the y-axis, it can't be A or C.

We also know they are above (0,0), so it can't be option B.

That leaves option D.

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One angle of a right triangle measures 60°. The side opposite this angle measures 15 inches.

Delicious77 [7]

Step-by-step explanation:

To solve this question I would use the sin rule.

The sin rule states that

$\frac{a}{ \sin(a) } = \frac{b}{ \sin(b) }$

Therefore if you substitute in your numbers you get:

$\frac{a}{ \sin(90) } = \frac{15}{ \sin(60) }$

If you rearrange that you get:

$a = \frac{15}{ \sin(60) } \times \sin(90)$

Therefore a = 17.3 Inches (to 3 sf)

This can also be done with basic trigonometry where you would get

$\sin(60) = \frac{15}{h}$

Rearranging to

$h = \frac{15}{ \sin(60) }$

meaning the answer is 13.7 inches

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4 years ago

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A commuter is driving along a highway on which the speed limit is 45 miles per hour when he unknowingly runs into a speed trap i

Anna71 [15]

Here is a screen shot of what I found...hope this helps =)

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3 years ago

Answer please help I would appreciate any help

Vanyuwa [196]

By moving the decimal point two spaces to the left, the number becomes a number between one and ten

the answer is 6.56 times 10^2

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3 years ago

Whay maked this statement true ?7-^2=?

ruslelena [56]

I'm gonna say guess the equation is -7^2.

The answer would be 49.

49 would make that equation true.

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3 years ago

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Select all of the following expressions that are equal to 2.5

svet-max [94.6K]

2÷5=2.5
4÷10=2.5
that is about it

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3 years ago