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Andru [333]
3 years ago
12

Given f(x)=9x^2 find f(-3)

Mathematics
2 answers:
Vesnalui [34]3 years ago
5 0

Answer:

f(- 3) = 81

Step-by-step explanation:

Substitute x = - 3 into f(x) , that is

f(- 3) = 9(- 3)² = 9(9) = 81

Pani-rosa [81]3 years ago
3 0

Answer: f(-3) = 81

Step-by-step explanation:

f(-3) = 9(-3^2)

f(-3) = 9(9)

f(-3) = 81

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HELPPPP FIND THE AREA
GuDViN [60]

you can just split the figure in 2 separate figures and them add the areas:

area rec. 1:

3m×3m= 9m²

area rec. 2:

3m× (2m+3m)

= 3m×5m

=15m²

total area:

9m²+15m²= 24m²

5 0
2 years ago
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What is the simplified form of (x+5/3x+4)+(x+4/x+3)​
kolbaska11 [484]
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3 years ago
Please help ASAP. PRE ALGEBRA
telo118 [61]

Answer:

x=35

Angle measurements of the triangle from least to greatest:

35,40,105

Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees.

So we know that 40+3x+x=180.

First step is to combine the like  terms on the left hand side:

40+4x=180

Second step is to subtract 40 on both sides.

4x=140

Third step is to divide both sides by 4:

x=35

The angle that is given is the one that is 40 degrees.

So the angle whose measurement is x is really 35 degrees.

The angle whose measurement is 3x is real 3(35)=105 degrees.

In order from least to greatest we have:

35,40,105

6 0
3 years ago
trình bày phương pháp giải phương trình tuyến tính cấp 2 có hệ số hằng số? Với mỗi trường hợp hãy cho ví dụ minh họa
telo118 [61]

Answer:

Sorry I can't understand

6 0
3 years ago
Solve for m when: 3-2m=-1​
kati45 [8]
M = 2

3 - 2m = -1

subtract 3 from both sides
-2m = -4

divide by -2 on both sides
m = 2

the answer is positive since a negative divided by a negative is positive
5 0
3 years ago
Read 2 more answers
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