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vladimir2022 [97]
3 years ago
13

6(4a^2+11)- 13(3a-2a^2)-28 please help quick!!

Mathematics
2 answers:
attashe74 [19]3 years ago
5 0
Split it out and solve it !!

6(4a^2+11)- 13(3a-2a^2)-28

24a² + 66 - 39a +26a² - 28

50a² - 39a + 38
Sergio [31]3 years ago
4 0

(24a^2+66)- (39a-26a^2)-28

24a^2 + 66 - 39a + 26a^2 - 28

Combine like terms:

50a^2 + 38 - 39a

Divide the equation by 2:

25a + 19 - 19.5a

44.5a + 19 Is the simplest form of this equation.


I hope this helps! :)


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What can divide 180 in order to get the answer 5
Sveta_85 [38]

Answer:

36

Step-by-step explanation:

180/5 is 36.

To double check, you can multiply 36 by 5, which gives you 180.

5 0
3 years ago
Alliic
pochemuha
First, we need to solve the first equation in order to see what the options need to be equivalent to. our first step to solving this is to distribute -3 through the parenthesis 
y + 5 = -3x + 3
next, move the constant to the right side and change its sign
y = -3x + 3 - 5
calculate the difference
y = -3x - 2
since we cant find x, your final solution for y is y = -3x - 2, x ∈ R
now that we know the solution to that equation, we can now solve the options listed to see which ones are equivalent.
first is y = -3x - 2, which is very simple to solve because y has already been found. since we know y and there is no solution for x, our answer to this equation is y = -3x -2, x ∈ R. since this is the exact same answer as our first equation, we know that the A is equivalent to y + 5 = -3(x - 1)
the next equation is also already solved for y and has no x, so the answer to this equation is y = -4x - 5, x ∈ R. since this is does not have the same answer that <span>y + 5 = -3(x - 1) had</span>, option B is not equivalent.
our next equation is 3x + y = -2 does not provide y for us, so we must solve it.
first, you need to move the variable to the right side and change its sign
3x = -2 - y
now divide both sides of the equation by 3
x = - 2/3 = y/3
write all the numerators above their common denominators
x = - 2 + y/3 
since we dont know what y is, our final solution is
x = - \frac{2+y}{3} , y ∈ R
since this answer does not match the answer we are looking for, option C is not equivalent.  
finally, we must solve -4x + y = -5
the first step to solving this is to move the variable to the right side and change its sign
-4x = -5 - y
divide both sides of the equation by -4
x = 5/4 + y/4
now, write all the numerators above their common denominators 
x = 5 + y/4
since we dont know what y is, our answer is x = \frac{5+y}{4} , y ∈ R
since this is also not equivalent to <span>y + 5 = -3(x - 1), our only answer is option A.
let me know if you have any further questions 
:)</span>
5 0
3 years ago
Which number should each side of the equation 4/5x=8 be multiplied by to produce the equivalent equation of x = 10?
madreJ [45]
C bcz i had l
this last month and it was correct

6 0
3 years ago
Sue's Sushi placed two orders with its fish supplier. One order was for 11 pounds of salmon and 6 pounds of tuna; the order tota
lidiya [134]
Hi there

One pound of salmon will cost $13, and one pound of tuna will cost $8.

Here's why.

X will be the cost of pound of salmon, and y will be the cost of a pound of tuna.
| 15x+8y=259
| 12x+6y-204

6y = 204-12x
y=34-2x

15x+8(34-2x)=259
272-259=16x-15x
x=13

y=34-2*13
y=34-26
y=8

So, again...
1lb Salmon : $13
1lb Tuna : $8
3 0
3 years ago
Which of the following is a prime number? Select one: A. 19 B. 20 C. 21 D. 22
nexus9112 [7]

Answer: a. 19

Step-by-step explanation:

it only has 1 and itself

6 0
2 years ago
Read 2 more answers
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