3 years ago

Find the missing angle.

Mathematics

1 answer:

lesya [120]3 years ago

3 0

Answer is 45°, this is because A right angle triangle has 3 angles. 90°,45°,45°

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Fifteen more than half a number is 9

Ivan

I believe the answer would be 15+x/2=9

5 0

3 years ago

faust18 [17]

Answer:

Option D. $392.5\ units^{3}$

Step-by-step explanation:

we know that

The volume of the cone is equal to

$V=\frac{1}{3} \pi r^{2}h$

In this problem we have

$h=15\ units$

$r=5\ units$

substitute the values

$V=\frac{1}{3} (3.14)(5^{2})(15)=392.5\ units^{3}$

7 0

4 years ago

Solve the proportion X-16/x+6 = 3/5

BartSMP [9]

Answer:

x = 49

Step-by-step explanation:

Given

$\frac{x-16}{x+6}$ = $\frac{3}{5}$ ( cross- multiply )

5(x - 16) = 3(x + 6) ← distribute parenthesis on both sides

5x - 80 = 3x + 18 ( subtract 3x from both sides )

2x - 80 = 18 ( add 80 to both sides )

2x = 98 ( divide both sides by 2 )

x = 49

6 0

3 years ago

Read 2 more answers

Find the value of $x$.x

Lemur [1.5K]

Answer:

110°

Step-by-step explanation:

128°+40°+82°+x°= 360°

so 250°+x°=360°

x°=360°-250°

x°=110°

5 0

3 years ago

A company has installed new machinery that will produce a savings rate (in thousands of dollars per year) of S'(x) = 225-x^2, wh

Kipish [7]

Answer:

After 15 years the use of said machine is no longer profitable

Step-by-step explanation:

it should be used, as long as the money generated is not smaller as the costs generated. By setting both formulas equal (calculating the x value for when they are equal) you get x = 15 and x = -2.5(which doesnt make sense in this context).

3 0

3 years ago