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netineya [11]
4 years ago
6

Simplify. (8x + 5) + (4x2 - 2x - 6) A. 4x2 + 6x - 1 B. 4x2 + 10x + 1 C. 4x2 + 10x - 11 D. 4x2 + 6x + 11

Mathematics
1 answer:
Phoenix [80]4 years ago
8 0

The right ans is A.hope it will help u.........

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A 15 ft ladder leans against the side of a house. The top of the ladder is 13 ft off the ground. Find x, the angle of elevation
shutvik [7]

Answer:

x= 60.1 degrees

Step-by-step explanation:

The triangle forms a right angle triangle

Opposite side of angle x = 13 ft

Hypotenuse of the triangle = 15

We know the opposite side and the hypotenuse

So we use trigonometric formula sin(x)

sin(x) = \frac{opposite}{hypotenuse}

sin(x) = \frac{13}{15}

When we move 'sin' to the other side it becomes 'sin^-1'

x=sin^{-1}(\frac{13}{15})

x = 60.073565


5 0
3 years ago
Identify two additional values for x and y in a direct variation relationship where y =11 when x=18
Ann [662]
In a direct variation relationship the values must satisfy that y = kx. This si y is always a constant value (k) times x.

So, you can find multiple values that meet this:

y = kx => k = y / x = 11 / 18

=> y = (11/18)x

Now you can give any value to x and fint the value of x that satisfy the relationship:

x           y = (11/18)x

1           11/18

2           11/18 * 2 = 11/9

18          11/18 * 18 = 11

36           11/18 * 36 = 22

So, there you have several additional values for x and y in the same relationship that y = 11 and x = 18, and you can find many more using the same rule: y = (11/18)*x
3 0
3 years ago
Which expression is equivalent to x^-5/3<br><br> Answer choices:
Alex17521 [72]

Answer:

1/3x5 the Answer is b

Step-by-step explanation:

6 0
3 years ago
A taxi ride costs $3 plus $2.50 per mile. if sasha has 37 in cash,what is the greatest whole number of miles she can ride in thi
rusak2 [61]

Answer:

13 miles is the greatest whole number of miles she can go.

Step-by-step explanation:

37-3=34

$5 for 2 miles

34/5 = 6 remainder 4

that is 12 miles. But since she still has 4 dollars left, she can go another mile. so, 12 +1 = 13

hope this helps :)

6 0
2 years ago
Given the standard form of the equation,solve for y, What is y if x=4?
erik [133]
Well, I'm not sure since you didn't post the equation but, all you have to do is plug in the number 4 where x is. So for example, say the equation given to you was y=6x+5. Just plug in 4 for x and you get y=6(4)+5, which is y=29. 
8 0
3 years ago
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