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Mrrafil [7]
2 years ago
9

What is f(-3) for the function f(a)=-2a2-5a+4?

Mathematics
1 answer:
posledela2 years ago
4 0

Answer:

-25

Step-by-step explanation:

2a² - 5a + 4, for f(-3)

2(-3)² -5(-3)+4

2*(-27)+15+4

-54+19

= -25

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What is the surface area of a rectangular prism with a width of 4mm, length of 10 mm, and height of 7mm?
Rus_ich [418]
Given sides are 4x10x7. A rectangular prism with have 4 sides and 2 ends...we know area is length x height.. so the first side is 10x7 = 70mm. There are 4 sides so 70 x 4 = 280mm, then the end is 4x7 = 28. There are 2 ends so 28x2= 56mm. Combine 280+56 = 336mm. Hope that helps.
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3 0
3 years ago
Plz help me it’s emergency
BaLLatris [955]

Answer:

idk

Step-by-step explanation:

1/4 can also be written as .25

1 divided by 4 is .25

114 times .25 = answer

154 times .25  = answer

3 0
3 years ago
A customer brings a check of 2,941. he wants 100 in cash, put 20% of the remaining into her savings account then the rest into a
Goryan [66]

Answer:

Amount theta she is putting in Checking account is 2272.80

Step-by-step explanation:

Given:

Amount on check = 2941

Amount that he want in cash = 100

Amount she put in saving account = 20% of remaining after getting cash

Remaining Amount she put in checking account.

To find: Amount in her Checking Account.

Amount left after taking cash = 2941 - 100 = 2841

Amount that she put in saving account = 20% of 2841 = \frac{20}{100}\times2841 =  568.20

Amount in her checking account = 2941 - 100 - 568.20  = 2272.8

Therefore, Amount theta she is putting in Checking account is 2272.80

8 0
2 years ago
Can someone please take a look at the attachment and tell me what the answer is? Serious answers only please!
siniylev [52]
The solid line indicates that the line itself is included in the solutions.  That the shaded area is to the left, or under, the line means that y≤the line.

To find the equation of the line you first find the slope or m using any two points.

m=(y2-y1)/(x2-x1)  in this case you are given (2,-5) and (-2, 3) so

m=(3--5)/(-2-2)

m=8/-4

m=-2

So far for y≤mx+b we have:

y=-2x+b  using either point we can solve for b, I'll use (2,-5)

-5=-2(2)+b

-5=-4+b

-1=b

So the line is:

y=-2x-1  and since y≤ the line:

y≤-2x-1
5 0
3 years ago
Perhatikan pola bilangan berikut:2,-6,18,-54,162,...​
andrezito [222]

Answer:

no comprehendo

Step-by-step explanation:

8 0
3 years ago
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