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Nonamiya [84]
3 years ago
7

I'm really lost on this problem

Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0
Since you need a little bit of trigonometry to solve this problem,
I'm pretty sure you've had a little bit of trigonometry in class before
you were assigned to solve this problem.

-- The shaded triangle comes from taking the equilateral triangle and
either folding it in half or cutting it in half.

-- The base that the new triangle is standing on is 1/2 the base of the
equilateral triangle, so it's 7 cm long.

-- The acute angle at the right end of the base is the same as it was in
the equilateral triangle . . . 60 degrees.

--  The tangent of 60 degrees is (opposite side)/(adjacent side) = x / 7 cm

              tan(60) = x/7

-- Multiply each side of this little equation by 7 :   7 tan(60) = x
 
If you don't have the tangent of 60 degrees in your pocket, you can
find it with your calculator.  Multiply it by 7, and Shazam, you know 'x' .
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Complete the following statement. Write your answer as a decimal or whole number.
IRINA_888 [86]

Answer:

75% of $20 is $15

Step-by-step explanation:

Hope this helps

7 0
3 years ago
3(x+y)=7(y-x), 5(3x-y)=x+3​
hram777 [196]

Answer:

i am not sure thi sis the first one

4 0
3 years ago
Read 2 more answers
What is 5 3/5% of 750?<br><br> Thanks in advance.
GREYUIT [131]
<h3>given:</h3>

5 \frac{3}{5} \% \: of \: 750

<h3>solution:</h3>

5 \frac{3}{5}  = 5.6

\frac{5.6\%}{100}  \times  \frac{x}{750}

= 42%

6 0
2 years ago
Show what you know: work out the problems below and submit a photo of your work to receive full credit.
Alexxandr [17]

The model for representing the ratio of the number of orange and green rolls are  \dfrac{3}{2}.

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms will be 3O=2G

<h3>What is ratio?</h3>

The ratio is defined as the representation of the one number with respect to the other number. or one number is how many times to the other number.

A model that represents the ratio of different colored streamers.

\dfrac{O}{G}=\dfrac{3}{2}

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms.

D=3O   and  D=2G

3O=2G

Hence the models are  \dfrac{O}{G}=\dfrac{3}{2}  and  3O=2G.

To know more about Ratios follow

brainly.com/question/4931057

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6 0
2 years ago
Please answer this correctly
MAVERICK [17]

Answer:

1:50 PM

Step-by-step explanation:

Left school at 10:38 AM,

took them 51 minutes,

38+51=89,

89-60=29,

so when they drove to the museum, it was 11:29 AM.

From here, they stayed at the museum for 1 hour and 26 minutes,

so they stayed at the museum until 12:55 AM since 29+26=55.

Now, it took them 55 minutes to drive back to the school,

so 12:55 plus another 55 minutes,

it's going to be 1:50 PM when Dale's class got back to school.

7 0
3 years ago
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