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4 years ago

Please I really need help I will mark you as brainliest!

Mathematics

1 answer:

inna [77]4 years ago

4 0

Answer:

∠ XYZ ≈ 72.9°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tanXYZ = $\frac{opposite}{adjacent}$ = $\frac{XZ}{XY}$ = $\frac{13}{4}$ , thus

XYZ = $tan^{-1}$ ( $\frac{13}{4}$ ) ≈ 72.9° to 1 dec. place )

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An internet cafe charges a fixed amount per minute to use the internet. The cost of using the internet in dollars is, y = 3/4x.

Vinil7 [7]

ANSWER

8 minutes

EXPLANATION

We know that the cost of using the internet in dollars is given by,

$y=\frac{3}{4}x$

Where x is the number of minutes spent on the internet.

In this problem, we have to find how many minutes will 6 dollars buy. In other words, we have to find x for y = 6. To solve the given equation for x, we have to multiply both sides by 4,

$\begin{gathered} 4y=4\cdot\frac{3}{4}x \\ \\ 4y=3x \end{gathered}$

And divide both sides by 3,

$\begin{gathered} \frac{4y}{3}=\frac{3x}{3} \\ \\ \frac{4y}{3}=x \end{gathered}$

So, for y = 6, x is,

$x=\frac{4\cdot6}{3}=\frac{24}{3}=8$

Hence, $6 will buy 8 minutes.

8 0

1 year ago

Help please ! A B Or C

malfutka [58]

Answer:

B) 46

Step-by-step explanation:

What you have to do here is plug in the numbers 2, 3, 4, and 5 in for i in the equation and then add the sums together:

3(2) + 1 = 7

3(3) + 1 = 10

3(4) + 1 = 13

3(5) + 1 = 16

Add those together and they equal 46

3 0

3 years ago

GIVING BRAINEST IF RIGHT!!<br><br> Factor x^4 - 12x squared + 36

forsale [732]

Answer:

(x^2-6)^2

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Find the new amount if the original amount is 74 degrees and the percent of decrease is 3%. Round to the nearest tenth. Show all

saul85 [17]

Answer:

71.78? (not sure)

Step-by-step explanation:

To find 3% of 74, 74*.03 = 2.22

Subtract 3%, 74-2.22 = 71.78

4 0

3 years ago

3 3/11 in simplest form

Shalnov [3]

You can’t simply, it is already in simplest form

6 0

3 years ago