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stealth61 [152]
3 years ago
12

In the quadratic function y = ax^2 + bx + c, the ___________ affects the width of the parabola.

Mathematics
1 answer:
Gre4nikov [31]3 years ago
6 0

Answer:

the answer is the a affects the width

Step-by-step explanation:

the answer is a not the choice A, the third one

(i hope this help)

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The sum of the digits of a two digit number is 10. If 36 is subtracted from the number, the digit interchange their places Find
lianna [129]

Step-by-step explanation:

Let A be the tens digit of the number and B be the ones digit.

We have A + B = 10 and 10A + B - 36 = 10B + A.

=> A + B = 10 and 9A - 36 = 9B

=> A + B = 10 and A - 4 = B

=> A + B = 10 and A - B = 4

Therefore 2A = 10 + 4 = 14,

A = 7 and B = 10 - 7 = 3.

Hence the number is 73.

3 0
3 years ago
Which of the following linear equations represents the data chart?
Alex777 [14]

Answer:

option C

Step-by-step explanation:

y = -x + 7

Hope this helps you

8 0
1 year ago
Write the slope-intercept form of the equation that passes through the point (4, -2) and is perpendicular to the line y =4x - 1
Illusion [34]

Answer:

y = -1/4x - 1

Step-by-step explanation:

4x - 1

Change 4x to -1/4 to make the slope perpendicular

Then put (4, -2) on x and y to find b

-2 = -1/4(4) + b

-2 = -1 + b

-2 + 1 = -1

b is -1

So your final answer in slope intercept form is y = -1/4x - 1

4 0
3 years ago
Find the exact value of cos 157.5°.
Nonamiya [84]
Cos 157.5º=-cos (180º-157.5º)=-cos 22.5=-cos(45/2)

cos Ф/2=⁺₋√((1+cosФ)/2).

In this case 157.5º is in the second quadrant, therefore we use the following equation:
cos Ф/2=-√((1+cosФ)/2).          (we will have a negative number)

cos 157.5º=-cos (45/2)=-√((1+cos 45º)/2)
=-√((1+√2/2)/2)
=-√((2+√2)/4)
=-√(2+√2) / 2   (≈-0.92387...)

Answer: cos 157.5º= -√(2+√2) / 2

3 0
3 years ago
Donna has ridden 28 miles of a bike course. The course is 35 miles long. What percentage of the course has Donna ridden so far?​
ZanzabumX [31]

Answer:

Use a calculator to divide the two values (small over big) to get 14/35 = 0.4

Now multiply that result by 100 to convert to a percentage

0.4*100 = 40%

he has ridden 40% of the course so

7 0
2 years ago
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