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aivan3 [116]
3 years ago
15

Bernie has $16000 invested, part at 3% and the remainder at 5%. If the yearly interest on each investment is the same, how much

interest does he receive each year?
Mathematics
1 answer:
Snowcat [4.5K]3 years ago
3 0
If the interest is the same for both accounts then:

.03x=.05(16000-x)

.03x=800-.05x

.08x=800

x=10000, since the interest is the same for both we can just double the interest from one investment to find the total interest earned each year...

.03(10000)2=$600.00
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Mars2501 [29]

Answer:

\text{Average diameter is 1.65 mm and we decide that it is not 1.65 mm.}                

Step-by-step explanation:

We are given the following in the question:

The needle size should not be too big and too small.

The diameter of the needle should be 1.65 mm.

We design the null and the alternate hypothesis

H_{0}: \mu = 1.65\text{ mm}\\H_A: \mu \neq 1.65\text{ mm}

Sample size, n = 35

Sample mean, \bar{x} = 1.64 mm

Sample standard deviation, s = 0.07 mm

Type I error:

  • It is the error of rejecting the null hypothesis when it is true.
  • It is also known as false positive error.
  • It is the rejecting of a true null hypothesis.

Thus, type I error in this study would mean we reject the null hypothesis that the average diameter is 1.65 mm but actually the average diameters of the needle is 1.65 mm.

Thus, average diameter is 1.65 mm and we decide that it is not 1.65 mm.

8 0
3 years ago
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Juliette [100K]
F(x)=∛x

The domain will be all real numbers.

Answer: A) all real numbers.

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8 0
3 years ago
If the circumference of two circle are in the ratio 2:3, then their areas are in the ratio of
maxonik [38]

Answer:

4:9

Step-by-step explanation:

To take the scale factor from distance to area, we square it

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Square each term

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6 0
3 years ago
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Answer:

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Step-by-step explanation:

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30 = 2 × 3.14 × r

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Area of her face = pi × r²

3.14 × 4.7770700637²

= 71.6560509556 in²

Area of the mask = 9 × 5 = 45 in²

Uncovered area

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% of uncovered area:

26.6560509556/71.6560509556 × 100

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6 0
3 years ago
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Anna35 [415]

Answer:

The side length of the table is x + 5

Step-by-step explanation:

To solve this, you need only take the square root of the area:

\sqrt{x^2 + 10x + 25}\\= \sqrt{(x + 5)^2}\\= x + 5

So the side length of the table is x + 5

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