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RoseWind [281]
3 years ago
9

I really need help with this ASAP 71 POINTS

Mathematics
1 answer:
e-lub [12.9K]3 years ago
8 0
Working is a bit of a mess, but vertically she's correct, but she's incorrect horizontally

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Given the function f(x)=4x^8+7x^7+1x^6+1 What is the value of f(−2)?
qwelly [4]
<span> f(x)=4x^8+7x^7+1x^6+
</span>∴<span> f(-2)=4(-2)^8+7(-2)^7+1(-2)^6+1
</span>∴ <span>f(-2)=(4x256) + (7x-128) + (1x64) +1
</span>∴ <span>f(-2)=1024 - 896 + 64 +1
</span>∴ <span>f(-2)= 193</span>
7 0
4 years ago
In the figure to the right, AB = 7 1/2 m, BC = 2 1/4 m, and DE = 1 1/4 m. Find the perimeter of the figure if all angles are rig
Andreas93 [3]

Answer:

Perimeter=22 m

Step-by-step explanation:

Perimeter Of A Figure

Perimeter is the distance measured around a shape. If the figure is line-shaped, the perimeter can be obtained by adding the individual lengths of each segment around the shape.

The figure shown is surrounded by line segments. We only have to add them all to find the perimeter. But we don't need each individual length to do so. We may notice the following (given all angles are right):

The sum of HG+FE+DC equals AB. So the upper and lower lengths are twice AB, or equivalently: 2*7 1/2 m =15 m

It can also be noted that AH+GF=BC+DE=2 1/4+1 1/4 = 3 1/2 m. It means that the two lateral lengths are twice this value: 2* 3 1/2 = 7 m

Thus, the total perimeter is 15 m + 7 m = 22 m

4 0
3 years ago
6.04x10^-3 as an ordinary number
Sergio039 [100]

Answer:

0.00604

Step-by-step explanation:

The exponent tells us how many spaces to move the decimal in a given number. If its positive, the decimal moves to the right. If its negative, the decimal moves to the left.

6.04 x 10⁻³ = 0.00604

4 0
3 years ago
Cindy is twice as old as Peter. In 6 years, their ages will total 60. How old is Cindy now?
ehidna [41]

Answer:

cindny=32

peter=16

Step-by-step explanation: i think hope it helps

cindny=32

peter=16

7 0
3 years ago
A train traveled 300 miles at a constant speed. It took 5 hours. What is the constant of proportionality that describes the trai
Fudgin [204]

Answer:

60 miles an hour

Step-by-step explanation:

^^^^^^^^

5 0
3 years ago
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