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Sindrei [870]
2 years ago
14

Special Triangle: Solve for x and y.

Mathematics
1 answer:
Lelechka [254]2 years ago
3 0

Answer:

<em><u>x </u></em><em><u>=</u></em><em><u> </u></em><em><u>8</u></em><em><u>.</u></em><em><u>6</u></em><em><u>7</u></em><em><u> </u></em><em><u>and </u></em><em><u>y </u></em><em><u>=</u></em><em><u> </u></em><em><u>1</u></em><em><u>0</u></em>

Step-by-step explanation:

In right angled triangle

cos 60⁰ = 5/y

1/2 = 5/y

y = 10

in right angled triangle,

tan 60⁰ = x/5

√3 = x/5

x = 5√3 = 5 × 1.73 = 8.65

x = 8.67

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Is x = 9 in the solution set of the inequality x + 14 &lt; 20<br> Yes or no
notsponge [240]

Answer: No

Step-by-step explanation:

Data: x+14<20

x=9? Is what your trying to find

<u>Step one, Isolate x by subtracting 14 on both sides</u>

X+14-14<20-14=X=6

Reason: Since you are trying to find if x=9, you have to isolate it. The way to do that is to get rid of +14 by subtracting it by 14. However, since what you do to one side you do to the other, you subtract +20 by 14 to get 6.

Since x=6 isn't x=9, the answer is No

Answer: No

I hope this helps!

7 0
3 years ago
Six times a number plus 7 is equal to 55. What is the number?
valkas [14]

Answer:

6x_+7=55, the answer is 13, why? well because if you add 6+7 you will have 13, now you can multiple that by 5, and you will have 55 as an answer, did I helped you?

5 0
3 years ago
Estimate large and small values using powers of ten
Darya [45]

Answer:

100 times

Step-by-step explanation:

125x100=12500

because its an estimate this is the closest value

6 0
3 years ago
Read 2 more answers
A table is on sale for 464 , which is 36% less than the regular price.
viva [34]
The original price was 725.
Explanation:
"36% less than" means taking 36% away from 100%. 100-36 is 64, so 64% remains when 36% is taken away. So, 64% of the original table's price is 464.
So, if the original price was x, 464=0.64x
Solve this by dividing both sides by 0,64:
725=x
So, the original price was 725.
3 0
4 years ago
Do I factor, isolate, use a quadratic equation, or all?<br>And what is the answer?
lyudmila [28]

Factoring \:  is  \: the  \: easiest \:  way   \\  2 {x}^{2}  + 12x = 0 \\ \Leftrightarrow 2x(x + 6) = 0 \\ \Leftrightarrow x = 0 \: \vee \: x =  - 6

5 0
3 years ago
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