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bearhunter [10]
2 years ago
12

Multiply the binomial by the trinomial: (x+5) (2x²-7x+8)

Mathematics
1 answer:
vovikov84 [41]2 years ago
4 0

Answer:

2x^3 + 3x^2 -27x +40

Step-by-step explanation:

(x+5) (2x²-7x+8)

2x^3 + 3x^2 + 8x + 10x^2 - 35x + 40

2x^3 + 3x^2 - 27x + 40

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15 is 25% of what number
Sergio [31]
<span>The answer is 60. Let x be the number we are looking for. So x is 100% and we know that 15 is 25%. Make a proportion: x : 100% = 15 : 25%. Cross the products: x * 25% = 15 * 100%. x * 25% = 1500%. x = 1500% : 25%. x = 60. Thus, 60 is 100%, and 15 is 25% of 60. </span>
3 0
3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
ira [324]

Answer:

y= 10x + 4

Step-by-step explanation:

-10x + y = 4

-10x + y +10x = 10x + 4

y= 10x + 4

depending on what its asking usually this is what its asking for but im not sure exaclty what its asking so here.....

next step is to plug the numbers in

so for the first box it says that x is -2

plug it in.....

y = 10(-2) + 4

y = -20 + 4

y = -16

then keep doing it for the next boxes.....

second box:

y = 10(-1) + 4

y = -10 + 4

y = -6

third box:

y = 10(0) + 4

y= 4 because 10 times zero is zero (basically any number times 0 is zero)

fourth box:

y = 10(1) + 4

y = 10 + 4

y = 14

fifth box:

y = 10(2) + 4

y = 20 + 4

y = 24

Hope this helps!

*srry in advance if its wrong

5 0
3 years ago
Which expression is equivalent to?
Citrus2011 [14]
Number 3.


Your welcome
7 0
4 years ago
How do you write the algebraic notation when the scale factor is 3 ​
Alja [10]

Answer:

(x,y) = (3x,3y)

Step-by-step explanation:

3 0
3 years ago
How much interest will be earned in three years from $730 placed in a savings account at 6.5% simple interest?
mina [271]

Answer: $142.35. If you are talking about a total, that would be $872.35.

Step-by-step explanation: 6.5% of $730 is $47.45. Multiply this by 3 and you get $142.35.

Hope this helps!

8 0
4 years ago
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