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3 years ago

Use the expression 5.2v - (30 ÷ 6) + 12 to answer 9-10.

1 answer:

8 0

30 ÷ 6 represents a quotient.
30 is the dividend. 6 is the divisor. The quotient is 5.
:::::
5.2v represents a product of two factors.
5.2 and v are both factors.
5.2 is the multiplicand and v is the multiplier.

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Your science quiz had 17 questions and you answered 13 of the questions correctly. What is your present score?

konstantin123 [22]

dived 13 by 17

13/17 = 0.7647

= 76.47%

if you need to round the number it would be 76%, which is a 76 grade

7 0

4 years ago

If A and B are mutually exclusive, and if P(A) = 11% and P(B) = 25%, what is P(A or B)?

Pachacha [2.7K]

36 . how u it is easy when u add the both answers pa and on u will get 36 11%

+25%=36%

5 0

3 years ago

Please help i beg i never get these right

Anuta_ua [19.1K]

Answer:

$\sin(105) = \frac{\sqrt 2 + \sqrt 6}{4}$

Step-by-step explanation:

Given

$\sin(105^o)$

Required

Solve

Using sine rule, we have:

$\sin(A + B) = \sin(A)\cos(B) + \sin(B)\cos(A)$

This gives:

$\sin(105^o) = \sin(60 + 45)$

So, we have:

$\sin(60 + 45) = \sin(60)\cos(45) + \sin(45)\cos(60)$

In radical forms, we have:

$\sin(60 + 45) = \frac{\sqrt 3}{2} * \frac{\sqrt 2}{2} + \frac{\sqrt 2}{2} * \frac{1}{2}$

$\sin(60 + 45) = \frac{\sqrt 6}{4} + \frac{\sqrt 2}{4}$

Take LCM

$\sin(60 + 45) = \frac{\sqrt 6 + \sqrt 2}{4}$

Rewrite as:

$\sin(60 + 45) = \frac{\sqrt 2 + \sqrt 6}{4}$

Hence:

$\sin(105) = \frac{\sqrt 2 + \sqrt 6}{4}$

3 0

3 years ago

Micah and Lucy are in the school play. Micah memorizes 12 lines of the script the first day and 10 lines each day after that. Lu

ch4aika [34]

Answer:

62; 68

Step-by-step explanation:

<u>Micah</u>

12 + (10 x 5) = 62

8 + (12 x 5) = 68

6 0

4 years ago

Read 2 more answers

University students were surveyed randomly in their opinion regarding a recent tuition increase. The minimum age required with 1

Viktor [21]

Solution: We are given that the minimum age required is 18 and the maximum age required is 45.

The range rule of thumb states that range is about four times the standard deviation.

$Range \approx 4 \times s$

Where s denotes the standard deviation.

$\therefore s \approx \frac{Range}{4}$

$\approx \frac{45-18}{4}$

$\approx \frac{27}{4}$

$\approx 6.75$

Therefore, using the range rule of thumb, the standard deviation is 6.75

8 0

3 years ago