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Ipatiy [6.2K]
3 years ago
7

The product of 45/87 and --9/10 is​

Mathematics
1 answer:
grandymaker [24]3 years ago
7 0

Answer:

0.4655172413793

Step-by-step explanation:

45/87 ×-9/10 i

405÷870

0.4655172413793

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Find the area of each sector. Round your answers to the nearest tenth. ​
nata0808 [166]

Answer:

Area of sector = 102.6 feet squared

Step-by-step explanation:

Given:

Radius of circle = 14 ft

Angle θ = 60°

Find:

Area of sector

Computation:

Area of sector = [θ/360]πr²

Area of sector = [60/360](22/7)(14)²

Area of sector = [1/6][22/7][196]

Area of sector = 102.6 feet squared

3 0
2 years ago
9.50 One way to evaluate the effectiveness of a teaching assistant is to examine the scores achieved by his or her students on a
EleoNora [17]

Answer:

Step-by-step explanation:

Given that a professor sets a standard examination at the end of each semester for all sections of a course. The variance of the scores on this test is typically very close to 300.

H_0: s^2 = 300\\H_a: s^2 \neq 300

(Two tailed test for variance )

Sample variance =480

We can use chi square test for testing of hypothesis

Test statistic = \frac{(n-1)s^2}{\sigma^2} \\=62.4

p value = 0.0100

Since p <0.05 our significance level, we reject H0.

The sample variance cannot be claimed as equal to 300.

5 0
3 years ago
Which point is the solution to the following system of equations? x2 + y2 = 13 2x - y = 4
Anit [1.1K]
There are two solutions.
.. (3, 2)
.. (0.2, -3.6)

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If you're choosing possibilities from a list, trying them in the equations usually gives quick results.

4 0
3 years ago
Read 2 more answers
In triangle FGH, angle G is 30 degrees and angle H is 100 degrees. What is the measure of angle F? * 1 point 50 degrees 70 degre
serg [7]
Mark brainlist please!

Answer is 50 degrees

Since,

measure of angle F + measure of angle G + measure of angle H = 180

30 + 100 + measure of angle F = 180

Measure of angle F = 180 - 130

Measure of angle F = 50 degrees
5 0
2 years ago
jacob just had lunch at a restaurant and leaves a 18% tip. Choose all the expressions that will give his total cost in terms of
Leokris [45]

Answer:

1.18b

Step-by-step explanation:

Jacob had lunch at a restaurant and his bill was b.

Now, Jacob leaves 18% of his bill amount as a tip.

So, the tip amount at the rate of 18% of the bill amount will be \frac{18 \times b}{100} =0.18 \times b

Therefore, the total cost of Jacob for the lunch will be b + 0.18b = 1.18b. (Answer)

8 0
3 years ago
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