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3 years ago

What is the answer to question 12

2 answers:

8 0

I'm not sure if its only my computer, but neither the photograph nor the question itself appears on my screen, but what is question #12?

ololo11 [35]3 years ago

3 0

I don't see the picture please send the picture

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Gavin, Colin and Dan share some sweets in the ratio 1:4:1. Gavin gets 11 sweets. How many did Colin get?

djverab [1.8K]

If Gavin got 11 sweets, then the new ratio would be: 11:44:11

Colin got 44 sweets.

4 0

3 years ago

“Use the rule 5n - 2 to complete the missing entry labeled A and B in the input-output table below”

Shtirlitz [24]

Step-by-step explanation:

5n-2

5(4) - 2

20-2=18

A= 18

5n - 2 =48

5n=48+2

5n=50

divide by 5

n= 10

B=10

7 0

3 years ago

a card is chosen at random from a deck of 52 cards. it is replaced and a second card is chosen. what is the probability of choos

serious [3.7K]

P(2 aces) = (1/13)^2
P(2 kings) = (1/13)^2

P(king and ace) = 8C2/52C2 - 2(1/13)^2 = 0.0152

7 0

4 years ago

Read 2 more answers

Use the Gizmo to find the mass of the other objects. Write their masses below.<br> please help

Mashcka [7]

Not enough information

6 0

3 years ago

HELP <3 Match the expressions with their solutions.

densk [106]

Answer:

1 ) sin 165°

2 ) cos 330°

3 ) Tan 157.5°

4 ) $sin^2 157.5$

Step-by-step explanation:

1 )

Given expression is $\sqrt{\frac{1-cos330}{2} }$

We know that $cos2x=1-2sinx^{2}$

$sinx^{2}=\frac{1-cos2x}{2}$

$(sinx/2)^2=\frac{1-cosx}{2}$

So the first expression is sin (330/2)° =sin 165°

2 )

GIven expression is $1-2sin^2165$

We know that $cos2x=1-2sinx^{2}$

So the result is cos 330°

3 )

Given expression is $\frac{1-cos 315}{sin315}$

We know that $cos2x=1-2sinx^{2}$

Also we know that sin2x = 2sinxcosx

So The numerator becomes $2sin^2x/2$ . and the denominator becomes as $2sinx/2cosx/2$

$\frac{2sin^2x/2}{2sinx/2cosx/2}=tanx/2$

So the result is Tan 157.5°

4 )

Given expression is $\frac{1-cos 315}{2}$

We know that $cos2x=1-2sinx^{2}$

$(sinx/2)^2=\frac{1-cosx}{2}$

So the result is $sin^2 157.5$

6 0

3 years ago