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Veronika [31]
3 years ago
11

Much help needed please ​

Mathematics
2 answers:
alisha [4.7K]3 years ago
6 0

Answer: 0.8

Step-by-step explanation:

Jlenok [28]3 years ago
3 0
There is 9 counters all together and if 2 are picked out at random which are red then it would be 2/9
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Which of the following are identities? Check all that apply.​
Hatshy [7]

Answer:

b. cos²3x - sin²3x = cos6x

if its wrong sorry

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5 0
3 years ago
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PLS HELP WILL GIVE BRAINLIEST AND 20 POINTS TY!
brilliants [131]

Answer: It is B)

Step-by-step explanation: It was 8.66 something and that rounded to the nearest tenth is 8.7

7 0
2 years ago
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How do I start off these problems?
Marina CMI [18]
First of all you have to make them equal to each other. What I mean is the following
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8 0
2 years ago
PLEASE HELP!!<br>1y+14=-4y+9 for y. Round your answer to the nearest tenth.​
slega [8]

Answer:

y = -1.0

Step-by-step explanation:

Isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operations, and =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

First, add 4y and subtract 14 from both sides:

1y (+4y) + 14 (-14) = -4y (+4y) + 9 (-14)

1y + 4y = 9 - 14

Combine like terms:

5y = -5

Isolate the variable, y. Divide 5 from both sides:

(5y)/5 = (-5)/5

y = -5/5

y = -1

y = -1 is your answer.

~

6 0
3 years ago
The price of a ring was increased by 9% to £1800. What was the price before the increase? Give your answer to the nearest penny.
Alla [95]

Answer:

see steps

Step-by-step explanation:

New price  was increase from 100% to 109% at £1800.

By proportionality,

old price / 100% = 1800 / 109%

Cross multiply to get

old price = $1800 * 100% / 109% = £1651.38

6 0
2 years ago
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