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Crank
3 years ago
5

I will give u brainliest if u answer this

Mathematics
2 answers:
svp [43]3 years ago
7 0

Answer:

3.B

4.D

5.B

6.B

Step-by-step explanation:

suter [353]3 years ago
7 0

      3.B    16 minutes

4.D  53 inches

5.B  50 pounds

of sand and 75 gravel

 

6.B   8:5

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2sin(4x)+6=5
a_sh-v [17]

Let's solve the sine equation.

1. Express sine function in the left side of equation:

2\sin (4x)+6=5,\\ 2\sin (4x)=5-6,\\ 2\sin (4x)=-1,\\ \\ \sin (4x)=-\dfrac{1}{2}.

2. Use the genereal solution to get the solution of your equation:

4x=(-1)^n\arcsin \left(-\dfrac{1}{2}\right) +2\pi n, where n\in Z.

3. Find \arcsin \left(-\dfrac{1}{2}\right):

\arcsin \left(-\dfrac{1}{2}\right)=-\dfrac{\pi}{3}.

4. Substitute part 3 into part 2 and express x:

4x=(-1)^n \left(-\dfrac{\pi}{3}\right) +2\pi n, where n\in Z,

x=(-1)^{n+1}\cdot \dfrac{\pi}{12}+\dfrac{\pi n}{2}, where n\in Z.

5. Solutions of your equation are:

x=(-1)^{n+1}\cdot \dfrac{\pi}{12}+\dfrac{\pi n}{2}, where n\in Z.


5 0
4 years ago
Read 2 more answers
Jillian receives a $30 gift card to use at a movie theater. She spends $11 on her movie ticket and she wants to spend the remain
abruzzese [7]
2, 3, and 5.
Hope this could help.
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7 0
4 years ago
Read 2 more answers
If a cheetah jumps 7 meters how many centimeters did the animal jump
Dominik [7]

Answer:

700

Step-by-step explanation:

1 meter = 100 cm

7x100=700cm

3 0
3 years ago
Which of the following can be found on a credit report?
MrRissso [65]

Answer:

A, C, & D only

Step-by-step explanation:

All of the following are listed on your credit report except option B) your checking account balance.

7 0
2 years ago
There is a raffle for a $950 prize. Out of 125 tickets, each costing $18, one ticket will win the prize, and the rest will win n
mr Goodwill [35]

The expected value formula is

E=\Sigma x\cdot P(x)

We know that there are 125 tickets, so the probability of the ticket is

P(x)=\frac{1}{125}

Then, we find the expected value

E=950\cdot\frac{1}{125}=7.60<h2>Hence, the expected value is $7.60.</h2>

5 0
1 year ago
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