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3 years ago

Ugh I need to know number ten right now!

Mathematics

2 answers:

masha68 [24]3 years ago

7 0

Ricco moved the decimal the wrong way in his final solution

erastovalidia [21]3 years ago

3 0

Uh, rude. The answer to this is that Rico should've moved the decimal to the right twice, not the left.

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Math please help tutor :)

Fantom [35]

Answer:

8.5

Step-by-step explanation:

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3 years ago

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Express 5/6 as a decimal work it out step by step?

Papessa [141]

Answer:

0.83

Step-by-step explanation:

All fractions are division problems, so you just need to divied 5 by 6. You get 0.83333333 but you can round it to 0.83.

3 0

3 years ago

Round 5,685 to the nearest 100

zloy xaker [14]

Hi. Your answer is 5,700 because 685 is closer to 700 than 600. Please ask if you have any more questions. Also please mark as the brainliest answer!

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3 years ago

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graph each equation for the interval -360 is less than or equal to x and 360 is greater than or equal to x: y=1/2cos(2x+60)

lianna [129]

Answer:

See graph

Step-by-step explanation:

We want to graph $y=\frac{1}{2}\cos(2x+60\degree)$ on the interval $-360\degree \le x \le 360\degree$

We need to plot some few points

$(-30\degree,\frac{1}{2})$

$(-15\degree,\frac{\sqrt{3}}{4})$

$(0\degree,\frac{1}{4})$

$(15\degree,0)$

$(30\degree,-\frac{1}{4})$

$(45\degree,-\frac{\sqrt{3}}{4})$

$(60\degree,-\frac{1}{2})$

$(75\degree,-\frac{\sqrt{3}}{4})$

$(90\degree,-\frac{1}{4})$

$(105\degree,0)$

$(120\degree,\frac{1}{4})$

$(135\degree,\frac{\sqrt{3}}{4})$

$(150\degree,\frac{1}{2})$

This will give us one cycle.

We then use the pattern to complete the graph on the interval

$-360\degree \le x \le 360\degree$

6 0

3 years ago

How do you work these out im confused

Vitek1552 [10]

$\boxed {45)}$ Multiply 520 students by 20% (0.20).

520 * 0.20 = 104

Multiply 104 students by 12.5% (0.125).

104 * 0.125 = 13

13 students were on the wrestling team.

$\boxed {46)}$ dimes (d) = n + .80, nickels (n) = n

Make the dimes and nickels add up to $1.40 in an equation.

(n + .80) + n = 1.40

Combine like terms.

2n + .80 = 1.40

Subtract .80 from both sides.

2n = 0.60

Divide both sides by 2.

n = 0.30

Divide this by 0.05 (how many nickels are in a dollar).

0.30/0.05 = 6

d = n + 0.80 ⇒ 0.30 + 0.80 = 1.10

Divide this by 0.10 (how many dimes are in a dollar).

1.10/0.10 = 11

There are 6 nickels and 11 dimes in the bank.

4 0

3 years ago