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Margarita [4]
3 years ago
12

Rewrite the expression by using grouping symbols.

Mathematics
1 answer:
Karolina [17]3 years ago
7 0
The answer for this is D. y(6+b)
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I need help ASAP plzz help me in math
Rainbow [258]
You just need to replace x with the value given

x = -5
-27
27
-8
-16

x = -15
-67
57
-20
-28

× = 0
-7
12
-2
-10

4 0
4 years ago
A car is driving down a long Steep Hill the elevation above sea level in feet of the car when it is D miles from the top of the
amid [387]

Answer:

This task would be especially well-suited for instructional purposes. Students will benefit from a class discussion about the slope, y-intercept, x-intercept, and implications of the restricted domain for interpreting more precisely what the equation is modeling.

One potential confusion students may have follows from the subtle difference between what the car is doing and the idea of slope as the ratio between the change in vertical distance on the graph and the change in horizontal distance on the graph. Because the car is traveling one mile on a down-hill slope, the situation could be represented as a right triangle with a hypotenuse of 5,280 ft and a leg of 250 ft; using the Pythagorean Theorem they would find that the other leg is approximately 5,274 ft. Following through on this interpretation, a student might conclude that the car travels a horizontal distance of approximately 5,274 ft for every 250 ft in vertical distance and arrive at a slope of approximately -0.047. While this is, in some sense, the slope of the hill, it is not the slope of the function as described. This interpretation yields numbers that are very close to the situation described in the task, yet conceptually different since the distance traveled by the car would now be expressed in terms of horizontal distance traveled as opposed to distance along the slope of the hill to compute the elevation. If students do indeed pursue this line of reasoning, the task provides an opportunity to compare and contrast the graph of the function and what it represents with a drawing of the hill and the vertical and horizontal distances traversed with each mile down the slope.

Step-by-step explanation:

5 0
3 years ago
Answer number 7 a,b,c,and d . Please and thank you
Svetach [21]

Here you go sorry if pix came out upside down  

7 0
4 years ago
The derivative of the function f is given by f′(x)=−3x+4 for all x, and f(−1)=6. Which of the following is an equation of the li
dybincka [34]

Answer:

You are correct. The answer is y=7x+13

Step-by-step explanation:

First, we need to plug in our x value to the derviative's equation to find the slope of the line tangent to the graph, f

f'(x)=-3x+4\\\\f'(-1)=-3(-1)+4\\\\f'(-1)=3+4\\\\f'(-1)=7

Now that we have found the slope and have a given point: (-1,6) we can use the point slope formula to find the equation of the line tangent to the graph f.

y-6=7(x+1)\\\\y-6=7x+7\\\\y=7x+13

3 0
3 years ago
What is square root of 73751
krek1111 [17]
The square root of 73751 is.....
Answer: 85.73797292
6 0
4 years ago
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