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garik1379 [7]
3 years ago
13

Mrs. Thomas is calculating how long it will take for her to drive to her sister's house. Her sister lives 700 miles away, and sh

e will drive at a constant speed of 55 miles per hour.
She writes the equation y=700 - 55x where y is the number of miles left to drive after x hours. Which of the following answer choices best describes Mrs. Thomas's equation?

A. Mrs. Thomas's equation is correct

B. Mr. Thomas's equation is incorrect because she switched the variables. The correct equation is x = 700y + 55

C. Mrs. Thomas's equation is incorrect because she used subtraction instead of addition. The correct equation is y = 700+ 55x

D. Mr. Thomas's equation is incorrect because she paired the variable
the wrong number. The correct equation is y = 700x - 55
Mathematics
1 answer:
ExtremeBDS [4]3 years ago
4 0

Answer:

?

Step-by-step explanation:

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F(x)=x² +6<br> Find an equation for the tangent line to the graph of f(x) = x² +6 at (5,31).<br> y=
olganol [36]

Answer:

y = x^2 + 6       given equation

y = m x + b        equation of straight line required

dy/dx = 2 x       tangent to given curve

dy/dx = slope = 2 * 5 = 10

Thus our line must be of the form

y = 10 x + b

31 = 10 * 5 + b       at the point required

b = 31 - 50 = -19

Then our final equation becomes

y = 10 x - 19

8 0
1 year ago
18. Solve: y + 34 = -7.* O A. y = 41 O B.y=27 O C. y-27 O D. y = 41​
marusya05 [52]

Answer: y= -41

Step-by-step explanation:

Move all terms not containing  y  to the right side of the equation.

6 0
3 years ago
Can I get some help please, hurry!!???!!??
ElenaW [278]

Answer:

BM = 9.5

Step-by-step explanation:

4.4x2.5=11

so

3.8x2.5=9.5

6 0
3 years ago
Select the two binomials that are factors of this trinomial.
zysi [14]

Now,

x^2 - x - 12

or, x^2 - 4x + 3x - 12

or, x (x - 4) + 3 (x - 4)

◆ (x - 4) (x + 3)

So, The right answer is

A) x + 3

D) x - 4

This two binomial that are factor of this trinomial...

I hope you understand...♥♥

5 0
3 years ago
I need help please!!!!!!!!!!!
natima [27]

Answer:

Step-by-step explanation:

Semicircle:

diameter = width of rectangle = 8 units

radius r = 8/2 = 4 units

Area of semicircle = πr²

         = 3.14*4*4 = 50.24 square units

Area = Area of rectangle - Area of semicircle

        = 8*11 - 50.24

       = 88 - 50.24

      = 37.76 square units

5 0
3 years ago
Read 2 more answers
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