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finlep [7]
3 years ago
13

Which value is a solution of this equation 7Y -15 equals 27

Mathematics
1 answer:
ziro4ka [17]3 years ago
4 0

Answer: 21!!

Step-by-step explanation:

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Solve the compound inequality n-4 > 5 AND 2 > n + 3
Papessa [141]
Get n by itself in both inequalities

(This program doesn't allow for regular less than or greater than signs, so for the purposes of this problem I will be using less than or equal to (≤) and greater than or equal to (≥) signs)

Inequality 1:
n-4   \geq 5 \\ n \geq 9

Inequality 2:
2 \geq n+3 \\ -1 \geq n

Now that you have both of the n's by themselves, you can put the two inequalities together, like this
-1 \geq n \geq 9

Just keep in mind that these are supposed to be regular less than signs
5 0
3 years ago
Combine and Simplify
-Dominant- [34]

Combine like terms (terms with the same variable (letter)). Remember to bring the sign.

4c - 4d + 8c - 3d

4c + 8c = 12c

-4d - 3d = -7d

12c - 7d is your answer

hope this helps

5 0
3 years ago
Read 2 more answers
The sum of the first 30 terms of the sequence an=6n+5 is
ra1l [238]
First term a1 = 6+5 = 11
second term = 12+5 = 17

common difference = 6  

Sum of n terms:-
Sn  = (n/2) [ 2a1 + d(n - 1)]
Sum of 30 terms:-
S30  = (30/2)[ 2*11 + 6(30-1)]
        =  15 * ( 22 + 174)
        =   15 * 196
         =   2940 Answer

3 0
3 years ago
Read 2 more answers
What is the equation of the line that has a slope of 2 and passes through the point (2,9)?
jenyasd209 [6]

Answer:

D

Step-by-step explanation:

use the formula for point slope form, since all of your choices are in that form : y-y1=m(x-x1) (m is the slope)

we're given that m=2 and the point is (2,9)

Substitute into the equation

y-9=2(x-2)

That means that the answer is D

Hope this helps!

8 0
3 years ago
Can someone please answer. There is one problem. There is a picture thank you!
exis [7]
V=  \frac{4}{3} */pi*r^3= 11494,04


3 0
3 years ago
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