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KatRina [158]
3 years ago
10

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

Mathematics
1 answer:
andriy [413]3 years ago
4 0

Answer:

i believe the answer is 1

Step-by-step explanation:

You might be interested in
Please help I've been getting this same problem wrong all day lol
worty [1.4K]

Answer:

9\sqrt{2}

Step-by-step explanation:

=3\sqrt{2}+6\sqrt{2}

\mathrm{Add\:similar\:elements:}\:3\sqrt{2}+6\sqrt{2}=9\sqrt{2}

7 0
2 years ago
Read 2 more answers
6x - 10y = -16<br><br> x + 20y = 19
Lena [83]
This may be the right answer: x=-1 y=-11/5
4 0
3 years ago
MATH PLEASE HELP TwT
kaheart [24]

Answer:

The first and the third answer!

Step-by-step explanation:

The slope is NOT -6, it is -3/2 !!

The y intercept is 0

and the last one isn't right bc the slope and intercept is wrong!!!

I hope this helps, tho!! Have an awesome day :D

7 0
3 years ago
A rectangle with a perimeter of 19m^2+2m-10 and a width of m^2 write an expression for the lenght
never [62]

Answer: \frac{17}{2}m^2+m-5

Step-by-step explanation:

By definition, the perimeter of a rectangle is:

P=2l+2w

Where "l" is the lenght and "w" is the width.

If you solve for "l":

P-2w=2l\\\\l=\frac{P-2w}{2}

In this case, you know that the following expression represents  the perimeter of the rectangle:

19m^2+2m-10

And the width of that rectanle is represented wih this expression:

m^2

Therefore, based on the explained above, you can conclude that the lenght  of that rectangle is given  by:

\frac{19m^2+2m-10-2(m^2)}{2}

Finally, simplifying the expression, you get:

=\frac{17m^2+2m-10}{2}=\frac{17}{2}m^2+m-5

8 0
3 years ago
A television costs $350 before sales tax is applied. The final cost of the television was $378.
lana [24]
To get the answer we can use proportion. We know that 350 its 100% and 378 its 100% + taxes.
350% ------------ 100
378% ------------ x
cross multiply now
350*x=378*100
350x=37800      /:350
x=108 
Now we see that taxes its 8%, because final price its 100% + taxes = 108%

7 0
3 years ago
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