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Nana76 [90]
3 years ago
8

7th grade math help me please :))

Mathematics
1 answer:
svp [43]3 years ago
3 0

Answer: a. 5x + 8

b. 3

c. It means that Leila picked a number higher that isn’t between 1 and 10 so Julius wouldn’t be able to guess the number

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Why resultant magnitude by using Pythagorean theorem is different than using ( x,y )components addition vectors ???
Andreyy89

9514 1404 393

Explanation:

Your different answers came about as a result of an error you made in the Pythagorean theorem calculation.

  √(100 +100) = √200 = 14.142 . . . . same as vector calculation

4 0
2 years ago
What is the value of 3b when b = 18?
lubasha [3.4K]

Answer:

54

Step-by-step explanation:

to evaluate substitute b = 18 into 3b

3b = 3 × 18 = 54


4 0
3 years ago
Read 2 more answers
What is 1/2(7x-6)=6x-10
erastova [34]

Answer:

Step-by-step explanation:

1/2(7x - 6) = 6x - 10

7/2x - 3 = 6x - 10 .....multiply by 2

7x - 6 = 12x - 20

-6 + 20 = 12x - 7x

14 = 5x

14/5 = x  <===

7 0
3 years ago
Please help 25 points!
tatuchka [14]

The answer is 2268pi ft^3

7 0
3 years ago
Read 2 more answers
Find the area of the shaded region.
lbvjy [14]

Answer:

48\pi\\\approx 150.796

Step-by-step explanation:

1.Approach

To solve this problem, find the area of the larger circle, and the area of the smaller circle. Then subtract the area of the smaller circle from the larger circle to find the area of the shaded region.

2.Find the area of the larger circle

The formula to find the area of a circle is the following,

A=(\pi)(r^2)

Where (r) is the radius, the distance from the center of the circle to the circumference, the outer edge of the circle. (\pi) represents the numerical constant (3.1415...). One is given that the radius of (8), substitute this into the formula and solve for the area,

A_l=(\pi)(r^2)\\A_l=(\pi)(8^2)\\A_l=(\pi)(64)

3.Find the area of the smaller circle

To find the area of the smaller circle, one must use a very similar technique. One is given the diameter, the distance from one end to the opposite end of a circle. Divide this by two to find the radius of the circle.

8 ÷2 = 4

Radius = 4

Substitute into the formula,

A_s=(\pi)(r^2)\\A_s=(\pi)(4^2)\\A_s=(\pi)(16)

4.Find the area of the shaded region

Subtract the area of the smaller circle from the area of the larger circle.

A_l-A_s\\=64\pi - 16\pi\\=48\pi

\approx150.796

5 0
2 years ago
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