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2 years ago

Evaluate the function fx = 4 * 7^t for x= -1 and x=2

1 answer:

6 0

Well what i think you're asking here...I apologie if I'm wrong but what I did was

f(-1) = 4 * 7^t = 4/7

and

f(2) = 4 * 7^t = 196.

Is this what you wanted if not I can...try another way.

You might be interested in

Two semicircles are attached to the sides of a rectangle as shown.

melomori [17]

Answer:

$157\ in^{2}$

Step-by-step explanation:

we know that

The area of the figure is equal to the area of rectangle plus the area of two semicircles

The area of rectangle is equal to

$A=14*5=70\ in^{2}$

The area of the small semicircle is equal to

$A=\pi r^{2} /2$

$r=5/2=2.5\ in$ -----> radius is half the diameter

substitute

$A=(3.14)(2.5^{2})/2=9.8125 in^{2}$

The area of the larger semicircle is equal to

$A=\pi r^{2} /2$

$r=14/2=7\ in$ -----> radius is half the diameter

substitute

$A=(3.14)(7^{2})/2=76.93\ in^{2}$

The area of the figure is equal to

$70+9.8125+76.93=156.7425=157\ in^{2}$

8 0

2 years ago

Read 2 more answers

I need help please fast .................

erastova [34]

Answer:

I have no idea what sohcahtoa is but:

tan 50.1° = x/5

1.196 = x/5

multiply both sides of the equation by 5:

x = 5.98

3 0

2 years ago

Choose the solutions to the quadratic equation x2 – 8x – 9 = 0. –21 –1 9 29

8090 [49]

Answer:

-1 and 9

Step-by-step explanation:

To solve the quadratic, factor and set its factors equal to 0. Factoring is the action of breaking up a polynomial into pieces which multiply to make it. The factors are found by multiplying numbers to make C and add to B of $ax^2+bx+c$ .

Here c = -9 and b = -8. The numbers -9 and 1 multiply to -9 and add to -8. These are the factors (x-9)(x+1).

Set each equal to 0 and solve for x.

x-9 = 0

x = 9

x+1 =0

x = -1

6 0

2 years ago

IM HOMESCHOOLED AND I NEED SOME HELP WITH THIS QUESTION. ANYONE PLEASE HELP. my teacher won’t help me :(

gtnhenbr [62]

Answer:

GI = 18; GE = 12; IE = 6

Step-by-step explanation:

The key to the question is to realize or find out what a centroid is and what it does. You can solve this question by knowing three things.

The centroid is the meeting point of the three medians ( a median is a line that connects the midpoint of the side opposite a given vertex).
The centroid divides the median in a ratio of 2:1. The longest segment is from the vertex to the centroid.
The shortest segment is from the centroid to the midpoint of the side opposite the given vertex.

Point two is what you have to focus on.

GE/EI = 2/1

GE = 12 Given

Solution

GE / EI = 2/1 Substitute for the given

12 / EI = 2/1 Cross multiply

2*EI = 12 * 1 Simplify the right

2 * EI = 12 Divide by 2

EI = 12/2 Divide

Part Two

GI = EI + GE

GI = 6 + 12

GI = 18

EI = 6

4 0

2 years ago

Marcus is making dinner for himself and 6 friends. He open 6 cans of soup. Each can is 14 ounces. If everyone gets the same amou

jek_recluse [69]

Answer:

each person will get 12 ounces of soup

Step-by-step explanation:

6 cans of 14 ounces- 6x14= 84

84 ounces divided among 7 friends- 84/7= 12

so each friend gets 12 ounces

6 0

2 years ago