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stira [4]
3 years ago
14

John is digging a rectangular hole. The area of the rectangle is 8 square feet. John digs 4 feet down into the ground. What's th

e volume of John's hole in cubic feet?​
Mathematics
1 answer:
andreev551 [17]3 years ago
3 0

Answer:

32

Step-by-step explanation:

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The vertex angle of an isoceles triangle is 8 times the measure of the base angle. find the measure of the base angle
Yuki888 [10]
For this problem, if we used b to represent your base angle measurement, you would add 8b+2b and set it equal to 180. This is because the measure of the vertex angle is 8 times the base angle measurement, so we had to multiply b by 8. We also had to add it to the other angle measures, so the other angle measures are represented as 2b since they are the same length. We then have to set this equal to 180 since that measures of a triangle must add up to 180. Then we combine like terms on our “b” side to get 10b=180. Then we divide both sides by 10 and we get b=18, which is the measure of our base angle.
4 0
3 years ago
Use the slope formula to find the slope between the two given points.
mario62 [17]

Answer:

7) 1

8) -2

9) undefined (no slope)

10) 4/3

11) -2/7

12) 0

Step-by-step explanation:

to find the slope when given to points ... minus the y values and x values

formula :

y - y

------  =  slope

x - x

4 0
3 years ago
* A car is 15 ft long. A model of the car has a scale of 1 in: 2 ft. How long is the model? Round to the nearest tenth, if neces
s2008m [1.1K]

Answer:

7.5 in

Step-by-step explanation:

6 0
3 years ago
Explain why S = {(5, 4, -2), (-15, -12, 6), (10, 8, -4)} is NOT a basis for R^3 (1 point Sis linearly dependent and spans R3 S i
earnstyle [38]

S would be a basis for \mathbb R^3 if

(1) the vectors in S are independent, and

(2) the vectors span \mathbb R^3.

  • Linear independence requires that c_1=c_2=c_3=0 is the only solution to

c_1(5,4,-2)+c_2(-15,-12,6)+c_3(10,8,-4)=(0,0,0)

These vectors are not linearly independent because if c_1=3, c_2=1, and c_3=0, we have

3(5,4,-2)+(-15,-12,6)=(15-15,12-12,-6+6)=(0,0,0)

so S is not a basis for \mathbb R^3.

7 0
3 years ago
Solve x + x + 2 + 2x = -2 for x
kakasveta [241]

Answer:

-1

Step-by-step explanation:

4x=-4

X = - 1

That's itt

8 0
3 years ago
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