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hammer [34]
3 years ago
6

Give f(x) = X2 + 3x-1, find b) f(-1)​

Mathematics
1 answer:
nikklg [1K]3 years ago
7 0

Answer:

-3

Step-by-step explanation:

f(x)= x²+3x-1

f(-1)= (-1)²+3(-1)-1

= 1-3-1

= -2-1

= -3

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A trailer is 160 inches. A driveway is 60% longer than the car. How long is the driveway?!?
MAXImum [283]

Answer:

266.666667

Step-by-step explanation:

3 0
3 years ago
Let f(x)=2x+3 and g(x)=x×x-1<br>find a. f(g(x)) b.g(f(x))<br><br>​
Talja [164]

Answer:

See explanations below

Step-by-step explanation:

Given the functions f(x)=2x+3 and g(x)=x^2-1

a. Find f(g(x))

f(g(x)) = f(x^2-1)

f(g(x)) = 2(x^2-1)+3

f(g(x))= 2x^2-2+3

f(g(x)) = 2x^2+1

Hence the composite function f(g(x)) is 2x^2+1

b) g(f(x)) = g(2x+3)

g(f(x) = (2x+3)^2-1

g(f(x)) = 4x^2+12x+9-1

g(f(x)) = 4x^2+12x+8

5 0
2 years ago
Martha has saved $2,700 to share with her family. She divides one-third of her savings equally between her two children, Lola an
ivanzaharov [21]
Each of Tanner's kids gets $150.
7 0
4 years ago
Read 2 more answers
US National forest cover approximately 300,000 square miles. conversationalist want the total square footage of forests to be 30
Sveta_85 [38]
E+10 is equivalent to 10^10 so, 9e+10 is equivalent to 9*10^10. 300,000^2 is 90000000000 square miles, where as the US has 4000000. Therefore, if the national forest were as large as the environmentalist wants them to be, the forest would be larger than the US, which is IMPOSSIBLE !!! As a result, this goal is not reasonable 
7 0
3 years ago
Help me please, kinda lost
Dmitry_Shevchenko [17]

Answer:

400cm^2

Step-by-step explanation:

For this question, you need to find the surface areas of both objects, then add them together.

For the cube:

56cm for the front

56cm for the back

42cm for the side

42cm for the other side

48cm for the top

48cm for the bottom

SA for the cube: 292cm^2

For the triangle, things are a little different. We do the same process that we did to find the SA of the cube, but we do not have to find the SA of the top side (because there isn't a top side) and we have to divide the total SA by 2 because it's a triangle.

For the triangle:

42cm for the front

42cm for the back

54cm for the slanted side

42cm for the other side

36cm for the bottom

SA for the triangle: (216/2)^2=108cm^2

292+108=400cm^2

the SA of the composite figure is 400cm^2

8 0
3 years ago
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