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likoan [24]
3 years ago
7

What do i do it’s a quiz

Mathematics
1 answer:
Andrei [34K]3 years ago
5 0

Answer:

i think its the last one

Step-by-step explanation:

You might be interested in
Find the missing length indicated. x=
guapka [62]

Answer: x = 120

Step-by-step explanation:

Here we have 3 triangles, one big and two smaller ones, one at the left and other at the right.

Now, the right sides is shared by the right smaller triangle and the big triangle, if this length is Z, we have that (using the angle in top of it, A, such that 64 is adjacent to A.)

Cos(A) = 64/Z

Cos(A) = Z/(64 +225)

We can take the quotient of those two equations and get:

1 = \frac{64*(64 + 225)}{Z^2} = \frac{18496}{Z^2}

Then:

Z = √(18,496) = 136.

now, we have that for the smaller triangle one cathetus is equal to 64 and the hypotenuse is equal to 136.

Then, using the Pythagorean theorem:

64^2 + x^2 = 136^2

x = √(136^2 - 64^2) = 120

5 0
4 years ago
Please help with 2 or 3! Thank you!!
noname [10]
3035/100 but I'm sure you can simplify it from there. If not message me
4 0
4 years ago
A mountain bike has a diameter of 26 inches. To the nearest foot how far does the tire travel when it makes 32 revolutions?
Tcecarenko [31]
Hello!

You have to find the circumference

You use the equation

2 \pi r

r is radius which is half the diameter

This gives us 81.68

Multiply this by 32

81.68 * 32 = 2613.76

This is 217.8133333 feet

The answer is 217.8133 feet

Hope this helps!
8 0
3 years ago
In triangle FGH shown below, what is the<br> measure of ZG in degrees?
Andrews [41]

Step-by-step explanation:

Let x represent angle g

x+22.5+125=180

x+147.5=180

x=180-147.5

x=32.5°

7 0
3 years ago
6. Find the slope of AB, given A (3,-1) and B (-1/3, 2) *​
Elena-2011 [213]

Answer: -\frac{9}{10}

Step-by-step explanation:

Just plug these points into the slope formula \frac{y_{2}-y_{1} }{x_{2}-x_{1}}

A: (3,-1) = (x_{1}, y_{1})

B: (-1/3, 2) = (x_{2}, y_{2})

Now solve.

\frac{2- (-1)}{-\frac{1}{3} - 3 }

Simplify the numerator by changing the negative and minus to positive: 2 +1

This simplifies now to 3.

The denominator needs to be simplified by finding a common denominator.

-\frac{1}{3} -\frac{3}{1}

The 3/1 needs to be multiplied by 3 on the top and bottom to get. -\frac{1}{3} - \frac{9}{3}

Now with a common denominator we can subtract:  -\frac{10}{3}

Now we can put our simplified denominator and numerator back together.

\frac{3}{-\frac{10}{3} }

Now KCF, keep change flip.

\frac{3}{1} *- \frac{3}{10}

Now multiply across.

-\frac{9}{10}

This is the final answer as it cannot be simplified any further.

3 0
4 years ago
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