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Rudiy27
4 years ago
7

Help me plss!!!!!!! What is the answer for this question?

Mathematics
2 answers:
White raven [17]4 years ago
4 0

Answer:

12

Step-by-step explanation:

you add up the sides :)

Ira Lisetskai [31]4 years ago
4 0

Answer:

-7/25

Step-by-step explanation:

Use any of these double angle formulas:

cos(2θ) = cos²θ − sin²θ

cos(2θ) = 2cos²θ − 1

cos(2θ) = 1 − 2sin²θ

Here, cos A = 3/5 and sin A = 4/5.  Using the first identity:

cos(2A) = (3/5)² − (4/5)²

cos(2A) = 9/25 − 16/25

cos(2A) = -7/25

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Nick can read 3 pages of his book in 1 minute. At this rate how many pages can he read in 30 minutes?
g100num [7]

Answer:

90

Step-by-step explanation:

3/1=3

30x3=90

5 0
3 years ago
Please help.
Cloud [144]

Answer:

The cups cost $3.00 and the plates cost $4.00

6 0
3 years ago
Pleaseee help meee struggling currently
lisabon 2012 [21]

Answer: 2908.92435 inches.

Step-by-step explanation for shape 1: A = 2(wl + hl + hw) = 2 · (30 · 13 + 13 · 13 + 13 · 30) = 1,898 inches.

Step-by-step explanation for shape 2:

Using the formulas:

A=2AB+(a+b+c)h

AB=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

2

Solving for A:

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=9·30+13·30+9·30+1

2·﹣94+2·(9·13)2+2·(9·9)2﹣134+2·(13·9)2﹣94≈1010.92435

Step-by-step explanation for total volume: 2908.92435 inches.

5 0
3 years ago
Read 2 more answers
3.<br><br> What is the value of a + bc when a = 7, b = 4, and c = 1/2
Brums [2.3K]

Answer:

9

Step-by-step explanation:

Replace a by 7

and

b by 4

and

c by 1/2

7+4(1/2)

7+2=9

3 0
3 years ago
If the customer rolls the dice and rents a second movie every Thursday for 20 consecutive weeks, what is the total amount that t
VMariaS [17]

Answer:

The expected amount for a duration of 20 weeks is $9.4

<em></em>

Step-by-step explanation:

Read attachment to understand the complete question

From the question, we have the following given parameters:

x = Amount paid for a second movie

E(x) = 0.47 --- Expected value of x

SD(x) = 0.15 --- Standard deviation of x

Required

Determine the total amount paid for a second movie for 20 weeks

The required implies that we calculate the expected value for a duration of 20 weeks.

i.e.

n = 20

If

E(x) = 0.47

Then:

E(nx) = n * E(x)

Substitute 20 for n

E(20x) = 20 * E(x)

Substitute 0.47 for E(x)

E(20x) = 20 * 0.47

E(20x) = 9.4

<em>Hence, the expected amount for a duration of 20 weeks is $9.4</em>

6 0
3 years ago
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