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3 years ago

7

Find a number lower than 19 that has more factors than 19,21,23, and 25

1 answer:

Len [333]3 years ago

7 0

12 has more factors the 19,21,,23, and 25.

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Which of the following tables is not an example of a linear function. And please explain why

Maslowich

Answer:

D

Step-by-step explanation:

In the other tables, their y values have a constant rate of change while as D does not.

Rate of Change for:
A = 5
B = 0.75
C = -5
D = Not Constant (+2 -> +3 -> +4)

8 0

2 years ago

Please help please thank you

AleksAgata [21]

Honestly, I would go with:
C. Yes, because the mean is larger in the math book

Because the mean for the math book is 49.9 and the poetry book's mean is 41.5. And since 49.9 is a bigger number than 41.5, that is why i'm going with that one

But it's for sure one of the bottom 2

Hope this helps!! :-)

8 0

2 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

The angle measures of a triangle are 2y+3 degrees 9y-7 and 7y+4 degrees what is the value of y

Roman55 [17]

Answer:

2y+3+9y-7+7y+4=180

2y+9y+7y=180(+7-7)

18y=180

y=180/18

y=10

then

2y+3

2×10+3

20+3

23

9y-7

9×10-7

83

7y+4

7×10+4

74

6 0

3 years ago

Nezavi [6.7K]

Answer: Water flows through a pipe at a rate of about 502 milliliters per hour.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers