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AysviL [449]
3 years ago
14

Can u plz help me with this !!!

Mathematics
1 answer:
Sveta_85 [38]3 years ago
5 0

Answer:

60

Step-by-step explanation:

10 + 5 = 15. 15/2 is 7.5. 7.5 times 8 is 60. The formula for the area of the trapezoid is (a+b)/2 x h.

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Please write in slope intercept form I’m struggling <br><br> y+4=-7(x-3)
klemol [59]

Answer:

y = -7x + 17

Step-by-step explanation:

you want to isolate the 'y' variable, start by distributing -7 on the right side

y + 4 = -7x + 21

now subtract 4 from each side

y = -7x + 17

8 0
3 years ago
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The perimeter P of a square (measured in inches) is expanding in size at a constant rate of change of 4 inches per inch with res
vivado [14]

Answer:

a. 10 inches

b. 8 inches

c. \frac{dP}{ds} = 4

Step-by-step explanation:

a. At side 0, perimeter is 0*4 = 0 in. At side 2.5 inches, perimeter = 2.5*4 = 10 inches, a change of 10 - 0 = 10 inches

b. At side 1, perimeter is 1*4 = 4 inches. At side 3 inches, perimeter = 3*4 = 12 inches, a change of 12 - 4 = 8 inches.

c. We can express the change in the square's perimeter P in terms of the change in the square's side length s as

\frac{dP}{ds} = 4

6 0
3 years ago
Two canoes travel down a river, starting at 9:00 a.M. One canoe travels twice as fast as the other. After 4.5 hours, the canoes
Vedmedyk [2.9K]

Answer:

v_1=3.33 \ miles/hour\\v_2=6.66 \ miles/hour

Step-by-step explanation:

<u>Constant Speed Motion </u>

When the object travels the same distances in the same period of time, the speed is constant and is can be calculated as

\displaystyle v=\frac{x}{t}

where x is the distance and t is the time

There are two canoes traveling at speeds v1 and v2. One of them has twice the speed as the other. Let's say

v_2=2v_1

When t hours have passed, the canoes have traveled x1 and x2 respectively.

x_1=v_1t

x_2=v_2t

Since

v_2=2v_1

Then

x_2=2v_1t

The distance between them is

X=x_2-x_1=2v_1t-v_1t

X=v_1t

That distance is known and equals 11.25 miles, thus

v_1t=15

Solving for v1 and using t=4.5 hours

\displaystyle v_1=\frac{15}{4.5}

v_1=3.33 \ miles/hour

v_2=2\times 3.33

\boxed{v_2=6.66 \ miles/hour}

6 0
3 years ago
Origanal 240 pages 20% increase
FrozenT [24]
10 % = 24
20 % = 2 x 10%
20 % = 48
240 + 48 = 288

hope this helps you
6 0
3 years ago
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densk [106]
20 is the greatest common factor Each group of 20 will have 1 brownie & 5 cookies
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4 years ago
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