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Shtirlitz [24]
3 years ago
6

Determine the approximate value of θ. A. 38.9 B. 51.1 C. 37.9 D. 52.1

Mathematics
1 answer:
Pepsi [2]3 years ago
8 0

Answer:

Option B. 51.1^o

Step-by-step explanation:

we know that

In the right triangle of the figure

The sine of angle theta is equal to divide the opposite side to angle theta by the hypotenuse

so

sin(\theta)=\frac{DF}{DE}

substitute the given values

sin(\theta)=\frac{7}{9}

using a calculator

\theta=sin^{-1}(\frac{7}{9})=51.1^o

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Write an exponential equation in the form y = abx whose graph passes through points (−3, 24) and (−2, 12). y = 3x y = 3(0.5)x y
Bingel [31]

Answer:

Option B.

Step-by-step explanation:

The given exponential equation is

y=ab^x  ...(1)

It is given that the graph of above equation passes through points (−3, 24) and (−2, 12).

The graph passes through the point (-3,24), so substitute  x=-3 and y=24 in equation (1).

24=ab^{-3}   ...(2)

The graph passes through the point (-2,12), so substitute  x=-2 and y=12 in equation (1).

12=ab^{-2}   ...(3)

Divide equation (3) by equation (2).

\dfrac{12}{24}=\dfrac{ab^{-2}}{ab^{-3}}

0.5=b

Substitute b=0.5 in equation (2).

24=a(0.5)^{-3}

24=\dfrac{a}{(0.5)^{3}}

24=\dfrac{a}{0.125}

24\times 0.125=a

3=a

Substitute a=3 and b=0.5 in equation (1).

y=3(0.5)^x

Therefore, the correct option is B.

8 0
3 years ago
Nine times ten to the negative eleventh power over two point four times ten to the eighth power
Greeley [361]

Answer:

9(10^-11)10^8

2.4

Step-by-step explanation:

That is the correct answer

8 0
3 years ago
If you eat 12 strawberries in 3 minutes, how long will it take to eat 8 strawberries at that rate?
kiruha [24]

Answer:

12/3 = 8/x

x=2

Step-by-step explanation:

6 0
3 years ago
Can someone plz help me
Aleonysh [2.5K]

Answer:

C

Step-by-step explanation:

It makes sense

4 0
3 years ago
A cylinder has a height of 13 feet and a radius of 11 feet. What is its volume? Use a ~ 3.14
ArbitrLikvidat [17]

Answer:

900

Step-by-step explanation:

V=πr2h

3.14 x 11= 34.54

34.54 x 2= 69.08

69.08x 13= 898.04

898.04 rounded to nearest hundreth is 900

8 0
3 years ago
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