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SVETLANKA909090 [29]
3 years ago
5

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

Mathematics
2 answers:
Oxana [17]3 years ago
6 0
Answer F(a)= -23 !!!!!!!!!
kvv77 [185]3 years ago
6 0
The answer is 31. You must plug -3 in for all A's in the function -2(-3)2-5(-3)+4=31
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Please help asap! I need this done tomorrow ​
d1i1m1o1n [39]

Answer:

2x + 3y = 4

Step-by-step explanation:

The standard form:

Ax + By = C

So from the given form, arrange it to the standard form.

First, simplify the form by distribution.

y + 6 = -2/3(x - 11)

y + 6 = -2/3x + 22/3

Next, you make the fractions into whole by multiplying both sides by 3(this would eliminate all fractions).

(3)y + 3(6) = 3(-2/3x) + 3(22/3)

3y + 18 = -2x + 22

Now, arrange the "Ax" and the "C's".

3y + 18 = -2x + 22

2x + 3y + 18 = 22

2x + 3y = 22 - 18

2x + 3y = 4

Cheers!

6 0
3 years ago
What are the differences between an (Algebraic) equation and expression?
lara31 [8.8K]

Hello!


An equation has an (=). They equal something. For example, 1+1=2 is an equation.


An expression does not have an equal sign. For example, 2 or 1+3 are both expressions. They have no equal sign.


I hope this helps!

6 0
3 years ago
A different way of proving the angle sum of a triangle is to use diagram
marishachu [46]

a.yes

Step-by-step explanation:

a.angle BCD =b because angle BCD is alternate angle of angle ABC

b.the two angles angle BAC and angle ACD is co-interior angle because they are inside a parallel line

7 0
3 years ago
3) A semicircle is attached to the side of a rectangle as shown.
m_a_m_a [10]
Rectangle = 18 x 6 = 108
Circle:  3.14 x (3)^2 = 3.14 x 9 = 28.26
<span>semicircle: 28.26 / 2 = 14.13
</span>
108 + 14.13 = 122.13

answer
122.13 cm^2

3 0
3 years ago
Read 2 more answers
Simplify<br> 8V 28<br><img src="https://tex.z-dn.net/?f=8%20%5Csqrt%7B28%7D%20" id="TexFormula1" title="8 \sqrt{28} " alt="8 \sq
omeli [17]
“42.3” I wish I got easy questions like you do
5 0
3 years ago
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