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3 years ago

What is sin(A)? 13 12 A 5 sin(A) =

Mathematics

1 answer:

eimsori [14]3 years ago

6 0

Answer:

sin A = 12/13

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opposite side/ hypotenuse

sin A = 12/13

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The cone and cylinder below have equal surface area

marissa [1.9K]

Answer:

Option B, False

Step-by-step explanation:

Step 1: Get the surface area formulas for both shapes

Surface Area Formula for Cone: $A = \pi * r(r + \sqrt{h^{2} + r^{2}})$

Surface Area Formula for Cylinder: $A = 2\pi rh+2\pi r^{2}$

Step 2: Plug in the values and solve

Cone: $A = \pi * r(r + \sqrt{(3r)^{2} + r^{2}})$

Cone: $A = \pi r^{2} + \pi \sqrt{10}r^{2}$

Cylinder: $A = 2\pi r*r+2\pi r^{2}$

Cylinder: $A=4 \pi r^{2}$

Step 3: Compare

$\pi r^{2} + \pi \sqrt{10}r^{2}\neq 4 \pi r^{2}$

They are not equal, therefore the answer is False.

Answer: Option B, False

6 0

2 years ago

What's your real rate of return if your savings account pays 2.5% interest and inflation is at 1%?

kolbaska11 [484]

Answer:

Real rate of return = 1.5%

Step-by-step explanation:

Given:

Savings account return = 2.5%

Inflation rate = 1%

Find:

Real rate of return = ?

Computation:

⇒ Nominal rate of return = Real rate of return + Inflation rate

⇒ Real rate of return = Savings account return - Inflation rate

⇒ Real rate of return = 2.5% - 1%

⇒ Real rate of return = 1.5%

6 0

3 years ago

David scored 1/2 of Lee's result. David scored 45%. What could be Lee's result be in percentage.

densk [106]

Answer: 90%

Step-by-step explanation:

you willhave to muitply by 2 becuse david only score half of lee's

3 0

3 years ago

-2.8 repeating as a fraction

Marizza181 [45]

0.8888888 = 8/9
2.8888888 = 26/9
-2.888888 = -26/9

3 0

3 years ago

3(6+4y) hurry uppp pleaseeeee

Ahat [919]

Answer:

=12y+18

Step-by-step explanation:

=(3)(6+4y)

=(3)(6)+(3)(4y)

=18+12y

=12y+18

4 0

3 years ago