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Shkiper50 [21]
3 years ago
8

I Need Help With These

Mathematics
1 answer:
Dmitrij [34]3 years ago
4 0
Notice below the picture

the one on the left-hand-side, is the 30-60-90 rule

those are the ratios, for 16), the hypotenuse (slanted side), is 4

for the ratios, that means that 4 = 2x, if you solve that for "x", that simply means "x" is 2

now, just use that value you found for "x" from the hypotenuse ratio, and use it to get the other two sides

what's the perimeter? all three sides added together

for 17)     \bf \textit{area of an equilateral triangle}\\\\
A=\cfrac{s^2\sqrt{3}}{4}\qquad s=\textit{length of one side}

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Solve the equation.<br><br>-4 (y - 2) = 12<br><br>y = ?​
inna [77]
First you distribute what’s outside the parentheses (the -4)

-4•4= -4y
-4•-2= 8

New equation: -4y+8=12

Now you solve like a normal equation
12-8 is 4

New equation: -4y=4

Now divide

Answer:-1
8 0
2 years ago
An 8-foot ramp needs to be elevated at an angle measuring 10° to be level with a step. Approximately how far
emmainna [20.7K]

Answer:

Approximately 7.9 feet.

Step-by-step explanation:

cos 10 = x / 8     where x is the required distance.

x = 8 cos 10

= 7.878 feet.

3 0
3 years ago
What is 52cm as a fraction of 90cm? (as a simplified fraction)
katrin2010 [14]

Answer:

\frac{26}{45} and \frac{3}{11}

Step-by-step explanation:

(a)

Expressing as a fraction

\frac{52}{90} ( divide numerator/ denominator by 2 )

= \frac{26}{45} ← in simplest form

(b)

Expressing as a fraction

\frac{30}{110} ( divide numerator/ denominator by 10 )

= \frac{3}{11} ← in simplest form

5 0
2 years ago
Translate the sentence into an inequality.
viktelen [127]

The appropriate inequality would be 4x + 19 ≤ -26

6 0
3 years ago
Which one is true from the below:
dezoksy [38]
Statement 2 is correct
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