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goblinko [34]
3 years ago
14

ANSWER QUICKLY PLEASE

Mathematics
1 answer:
Jet001 [13]3 years ago
8 0

Answer:

answer below:)

Step-by-step explanation:

sin C= \frac{opposite side}{hypotenuse side}= \frac{7}{25}

cos C= \frac{adjacent side}{hypotenuse side}= \frac{24}{25}

tan C=\frac{opposite side}{adjacent side}= \frac{7}{24}

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Solve by substituting the equation y=-x-6 y=x-4<br>(plz show work)
Elena-2011 [213]

Answer:

x = -1, y= -5

Step-by-step explanation:

y=-x-6

y=x-4

Since both equations are equal to y we can set them equal to each other

-x-6 = x-4

Add x to each side

-x-6+x = x-4+x

-6 = 2x-4

Add 4 to each side

-6+4 = 2x-4+4

-2 =2x

Divide by 2

-2/2 = 2x/2

-1 = x

now find y

y = x-4

y = -1-4

y = -5

4 0
3 years ago
The following random sample from a population whose values were normally distributed was collected.10 8 11 11The 95% confidence
Margaret [11]

Answer:

Answer:

B

Step-by-step explanation:

First to find the sample mean

Xbar= summation x/n= 40/4= 10

The sample standard deviation is:

S= √summation(x-xbar)²/ n-1

=√6/3= 1.4142

The degrees of freedom

df= N-1= 4-1= 3

For 95% confidence level, critical value of t

t= 3.182

The 95% confidence interval is:

=Xbar plus or minus t' *8/√n

= 10 plus or minus 3.182(1.4142/√4)

= 10plus or minus 2.25

So 7.75 or 12.25

6 0
4 years ago
A prism has three rectangular faces. It's other faces are in the shape of a _____.​
Stells [14]

Answer:

Rectangle or parallelogram

4 0
3 years ago
Is 2(4x-8)=-20equivalent to 8x-16=-20
Nadusha1986 [10]

Answer:

yes

Step-by-step explanation:

distribute 2 on the L.H.S.

8x-16=-20 is correct .

7 0
3 years ago
How many different groups of students can show up for a seminar with an enrollment of 11​?
Valentin [98]
For this question, will we use permutations.

So, how many people can be in the first group? 11. Then what about the second group? Well because there is already at least one person in the slot for the group it must 10. Then so on.

Then we multiply all of the terms.

11*10*9*8*7*6*5*4*3*2*1 or 11! Which means the same thing.

11! = <span>39916800
</span>
There are <span>39916800 ways to make a group.</span> 
7 0
4 years ago
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