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marin [14]
3 years ago
9

Analyze Ben’s work. Did he simplify the expression correctly? If not, what was his mistake?

Mathematics
2 answers:
Klio2033 [76]3 years ago
5 0

Answer: No, he needed to apply the exponent to all factors in the product in the second step.

tresset_1 [31]3 years ago
5 0

Answer:

its c i think

Step-by-step explanation:

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A football is kicked vertically upward from a height of 3 feet with an initial speed of 70 feet per second. The formula h=3+70t-
OLga [1]

Answer:

69 feet

Step-by-step explanation:

3 seconds is a unit of time, t.  So if we want the height of the ball, h, 3 seconds after it was kicked, we plug in 3 for t and solve for h:

h=3+70(3)-16(3)^2 which simplifies to

h = 3 + 210 - 144 so

h = 69 feet

6 0
3 years ago
Pls solve question 8
s2008m [1.1K]

The value of the angle ∠AVB is 53°, side VB = 132.83 m, side OV = 119 m

<h3>How to find the side length from bearings?</h3>

8) From the given triangle we see that;

∠VAO = 37°

∠VBO = 64°

∠VOA = 90°

a) Now, we know that sum of angles in a triangle is 180°. Thus, for triangle AVO, we can say that;

∠VAO + ∠VOA  + ∠AVB = 180°

37 + 90 + ∠AVB = 180°

∠AVB = 180° - 127°

∠AVB = 53°

b) Using triangle rules we can say that;

tan 64 = VO/BO

Similarly, we can say that;

tan 37 = VO/(100 + BO)

Dividing both equations gives;

tan 64/tan 37 = (100 + BO)/BO

2.72BO = 100 + BO

1.72BO = 100

BO = 58.14 m

Using trigonometric ratio;

58.14/VB = cos 64

VB = 132.83 m

c) OV/132.83 = sin 64

OV = 132.83 * sin 64

OV = 119 m

Read more about Side lengths from bearings at; brainly.com/question/23427938

#SPJ1

6 0
2 years ago
Please help ASAP! giving BRAINLIEST if correct!
tigry1 [53]

Answer:

B & C

Step-by-step explanation:

since (2x - 5)(x - 4) = 0

to solve, it would be

(2x -5) = 0 or (x -4) = 0

5 0
3 years ago
Read 2 more answers
Two parallel lines are crossed by a transversal. What is the value of k ?
MakcuM [25]

Answer:

k= 60

Step-by-step explanation:

The angles are alternate exterior angles and alternate exterior angles are equal when the lines are parallel.

2k+11 = 131

Subtract 11 from each side

2k+11-11 =131-11

2k =120

Divide by 2

2k/2 =120/2

k = 60

4 0
2 years ago
Read 2 more answers
A bowl contains 3 red, 8 blue, and 7 black beads. Margaret randomly selects 3 beads one after the other without replacement. Fin
castortr0y [4]
Since your second pick is affected by your first pick & your third pick is affected by the first two, it is dependent. 

First pick: 18 marbles, 3 are red, so odds are 3/18 = 1/6 

Second pick: 17 marbles, 8 are blue, odds are 8/17 

Third pick: 16 marbles, 7 are black, odds are 7/16 

<span>1/6 * 8/17 * 7/16 = 56/1632 = 7/204 & as mentioned before it's dependent</span>
3 0
4 years ago
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