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2 years ago

This is my last question can someone help me ?? Please

Mathematics

1 answer:

Margaret [11]2 years ago

6 0

The first three are correct

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You are visiting a friend in Coshocton and need to get to Cedar Point in Sandusky. These two cities are 106 miles apart. Using t

Paraphin [41]

Answer:

Step-by-step explanation:

Set-up a proportion with equal ratios.

$\frac{3}{50}=\frac{x}{106}$

Solve for x by cross multiplying.

3*106 = 50*x

318 = 50x

6.36 = x

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3 years ago

Please help. its on zearn name the coordinates of each shape

Allisa [31]

Answer:

circle: 2, 1/2

square: 1 1/2, 3 1/2

triangle: 0, 4 1/2

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1 year ago

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A bus company took a tour bus on a ferry. The ferry charges $130 for the bus plus an additional $2 per person on the bus. Write

pashok25 [27]

Answer: $2 variable per person, 120 base fee Step-by -step explanation : the delta are 20 persons and \$40 therefore variable cost are $2 per person base fee: 180-30*2=120

Hope this helps

7 0

1 year ago

Which of the following is true about a function that is constant? (4 points)

Lemur [1.5K]

It moves in a horizontal line. Its 'y value' does not change.

4 0

2 years ago

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Please please helpplpplpol

tresset_1 [31]

Answer: -4/5

Step-by-step explanation:

Ok so cos(x) = -4/5 and we know that:

$sin^2(x) + cos^2(x) = 1$ .

If we plug that in and solve for sin(x) we get:

$sin^2(x) = \frac{9}{25} \\sin(x) = \frac{3}{5}$

Now we have to consider: is sin(x) positive or negative?

We have that $\pi < x < \frac{3\pi }{2}$ .

From the unit circle, we know that sin(x) is negative in this range. Therefore sin(x) actually equals -3/5.

But the question asks: what is $sin(x + \frac{\pi }{2})$ ?

Here's where another important equation comes in:

$sin(\alpha + \beta ) = sin(\alpha)cos(\beta) + cos(\alpha)sin(\beta)$

In this case, we have alpha = x and beta = pi/2.

So, that looks like:

sin(x + pi/2 )= sin(x)cos(pi/2) + cos(x)sin(pi/2)

We already have what sin(x) and cos(x) are. We also know that sin( pi/2) = 1 and cos(pi/2) = 0.

sin(x + pi/2 ) = (-3/5)(0) + (-4/5)(1).

Therefore we simply have

sin(x + pi/2) = -4/5

7 0

2 years ago