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pochemuha
3 years ago
14

Please help! Could you answer all!?

Mathematics
2 answers:
Alexus [3.1K]3 years ago
8 0

My answer was wrong oops.

Brums [2.3K]3 years ago
3 0

Answer:

1.) 48

2.) 65

3.) 36

Step-by-step explanation:

1.)     If the equation is 6(x-4) and x = 12, then all we have to do is plug in the value of x. When we plug in, all we do is substitute 12 for x because they mentioned in the question that x = 12. So, we end up getting 6(12 - 4). After solving this, we get 48.

2.)     This problem is a lot like the last problem. All we need to do is substitute /plug in the values of x and y into the equation, to get 4(4^2) - 35/7 - (8 + 14). After solving, we get 65.

3.) .     This problem, once again, is also a lot like the last problems. We need to substitute the value of x into the equation 8x+12. Since we know from the problem that x is 3, all we have to do is 8 * 3 + 12.

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Simplify the expression. 10C7<br><br> A. 1<br><br> B. 3,628,800<br><br> C. 604,800<br><br> D. 120
Sophie [7]

Answer:

Combination

Step-by-step explanation:

Here by 10C7 we actually mean, C_{7}^{10}

And the formula for evaluating mCn is

=\frac{m!}{n!*(m-n)!}

Therefore

10C7 =  

=\frac{10!}{7!*(10-7)!} \\=\frac{10!}{7!*3!} \\

Where m! is called m factorial and can be evaluated as

m!= m*(m-1)*(m-2)*(m-3)*.......3*2*1

Hence

10!= 10*9*8......*3*2*1

7!= 7*8*6.....3*2*1

3!=3*2*1

With these we can evaluate

10C7

=\frac{10*9*8*7*.....3*2*1}{(3*2*1)*(7*6*5....3*2*1)}\\=\frac{10*9*8}{3*2*1} \\=\frac{10*3*4}{1} \\=120

Hence the answer is D

4 0
3 years ago
How many times does 2 go into 9
denis-greek [22]
4 times with 1 left over
7 0
3 years ago
Read 2 more answers
Please help me!! Will mark as the brainliest!!
Alexxx [7]

Answer:

10

Step-by-step explanation:

Use the number line and count how many numbers from 7 until you get to -3

4 0
3 years ago
Read 2 more answers
Can somebody please help me ?
lakkis [162]

SSA

Step-by-step explanation:

put name of triangle abc are same

4 0
3 years ago
A set of data has a mean of 45.6 what is the mean if 5.0 is added to each score
Solnce55 [7]

Answer:

The mean will be increased by 5

Step-by-step explanation:

Suppose a set of data (2, 4, 6, 8, 10, 12)

Mean is defined as sum of all the values given set of data divided by total number of values.

Mean1 = \frac{2+4+6+8+10+12}{6} = \frac{42}{6} = 7

Now if we add 5 toeach value, the new set becomes (7, 9, 11, 13, 15, 17)

for which,

Mean2 = \frac{7+9+11+13+15+17}{6} = \frac{72}{6} = 12

Mean2 - Mean1 = 5

4 0
3 years ago
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