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svetoff [14.1K]
2 years ago
9

Find x. Round your answer to the nearest hundredth

Mathematics
2 answers:
4vir4ik [10]2 years ago
8 0

Answer:

x = 5.86

Step-by-step explanation:

x / 15 = cos67°

x = 15cos67°

x = 5.86

Vladimir79 [104]2 years ago
3 0

Answer:

5.86

Step-by-step explanation:

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In what place value will the first digit of the quotient be for 5.64 divided 15.
nadya68 [22]

Answer:

Tenths.

Step-by-step explanation:

7 0
3 years ago
The LB Company has long manufactured a light bulb with an average life of 5400 hours. Company researchers have recently develope
elena55 [62]
<h2><u>Answer with explanation</u>:</h2>

Let \mu be the average life of light bulbs.

As per given , we have

Null hypothesis : H_0 : \mu =5400

Alternative hypothesis : H_a : \mu >5400

Since H_a is right-tailed and population standard deviation is also known, so we perform right-tailed z-test.

Formula for Test statistic : z=\dfrac{\overlien{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

where, n= sample size

\overline{x}= sample mean

\mu= Population mean

\sigma=population standard deviation

For n=95,\ \overline{x}=5483\ \&\ \sigma=500, we have

z=\dfrac{5483-5400}{\dfrac{500}{\sqrt{95}}}=1.61796786124\approx1.6180

Using z-value table , Critical one-tailed test value for 0.06 significance level :

z_{0.06}=1.5548

 Decision : Since critical z value (1.5548) < test statistic (1.6180), so we reject the null hypothesis .

[We reject the null hypothesis when critical value is less than the test statistic value .]

Conclusion : We have enough evidence at 0.06 significance level to support the claim that the new filament yields a longer bulb life

8 0
3 years ago
suppose the cost in dollars of producing x toothbrushes is given by the polynomial 1.00x + 350 and the revenue generated from sa
kati45 [8]

Answer:

Wait whats the question?

Step-by-step explanation:

3 0
2 years ago
Find the eighth term of the
Pie

Answer:

see explanation

Step-by-step explanation:

The n th term of a geometric sequence is

a_{n} = a₁ (r)^{n-1}

where a₁ is the first term and r the common ratio, hence

a_{8} = 6 × (-1/3)^{7} = 6 × - \frac{1}{3^{7} } = 6 × - \frac{1}{2187} = - \frac{2}{729}

7 0
3 years ago
What is the speed of a car traveling north, 100 meters in 25 seconds?
Marat540 [252]

using the conversion factor the speed of the car is 44.74 miles/hr

6 0
3 years ago
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