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Bad White [126]

3 years ago

13

Can anyone teach me how to solve this problem

1 answer:

kati45 [8]3 years ago

3 0

We have constructed two angles with angle measures, 30° and 50° respectively.
Recall the angle sum of a triangle is 180°; the formula for angle sum of any n-sided polygon is formulated by: 180(n - 2), where n is the number of sides.

Since we need the three angles to equal to 180, we can call the third angle x.
Hence, our equation becomes:

x + 30 + 50 = 180
x + 80 = 180
x = 100

Thus, our third angle is 100°

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a cone has a volume of 1,570in3. If the height of the cone is 15 inches. Calculate the radius of the cone?

spin [16.1K]

Answer:

approximately 10

Step-by-step explanation:

Volume = 1/3h times $\pi$ times radius square

1570 = 1/3 x 15 x 22/7 x $r^{2}$

1570 = 5 times $\frac{22}{7}$ times $r^{2}$

1570 = 15.71 $r^{2}$

$\frac{1570}{15.71}$ = $\frac{15.71 r^{2}}{15.71}$

99.9 = r^2

$\sqrt{99.9}$ = r

≅10

5 0

3 years ago

Shaquana went shopping for a new pair of sneakers because of a sale. The store was offering a 50% discount. What number should s

saveliy_v [14]

Answer:

.50

Step-by-step explanation:

50% is .50. The price of the item is .50 (100%-50% discount).

5 0

3 years ago

(3x) (4x) = <br> A. – x <br> B. 7x <br> C. 12x <br> D. 12x² <br> E. none of these

Mice21 [21]

$\huge\text{Hey there!}$

$\large\textbf{Equation: }$

$\large\textsf{(3x)(4x)}$

$\large\textbf{Solving:}$

$\large\textsf{(3x)(4x)}$

$\large\textsf{= 3x} * \large\textsf{4x}$

$\large\textbf{Combine the like terms:}$

$\large\textsf{(3x * 4x)}$

$\large\textsf{= 3x * 4x}$

$\large\textsf{= 12x}^2$

$\large\textbf{Therefore, your answer should be: }$

$\huge\boxed{\frak{Option\ D. 12\mathsf{x}^2}}\huge\checkmark$

$\huge\text{Good luck on your assignment \& enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

8 0

2 years ago

NARA [144]

Answer:

the preimeter is 794

Step-by-step explanation:

i am not sure if i was supost to pick a. b. c. so i added all the numbers u gave me

6 0

3 years ago

What is the value of x in the equation 2(x – 3) + 9 = 3(x + 1) + x?<br><br> x =

Mademuasel [1]

It means the same:

2x - 6 + 9 = 3x + 3 + x
2x +3 = 4x + 3
2x - 4x = 3 - 3
-2x = 0
x = 0/(-2) = 0

Answer:
x = 0

7 0

3 years ago

Read 2 more answers