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Dima020 [189]
2 years ago
11

The parabola y=x^2y=x 2 y, equals, x, start superscript, 2, end superscript is reflected across the xxx-axis and then scaled ver

tically by a factor of 555. What is the equation of the new parabola? Y=
Mathematics
1 answer:
kramer2 years ago
5 0

ANSWER

The equation of the new parabola is

y =  - 5 {x}^{2}

EXPLANATION

The given parabola has equation:

y =  {x}^{2}

If this parabola is reflected in the x-axis, its equation becomes :

y =  -  {x}^{2}

When this parabola is scaled vertically by a factor of 5, the equation becomes,

y =  - 5 {x}^{2}

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On a certain day, the temperature changed at a rate of 3°F per hour. How long did it take for the change in temperature to be -3
mamaluj [8]

Answer:

I think 11 hours.

Step-by-step explanation:

If I know starting temp such as 0 degrees then I can say that it would take 11 hours as 11*3 = 33. If it is 3 degrees, then it would 3*12 = 36 degrees.

7 0
2 years ago
If EBC = 31a - 2 and EBH = 4a + 45 find HBC
Zigmanuir [339]

Answer:

The measure of angle HBC is m∠HBC=61°

Step-by-step explanation:

In this problem we have that

The line BH bisects angle EBC,

see the attached figure to better understand the problem

then

m∠EBC=m∠EBH+m∠HBC

m∠EBH=m∠HBC

so

m∠EBC=2(m∠EBH)

substitute the given values and solve for a

31a-2=2(4a+45)\\31a-2=8a+90\\31a-8a=92\\23a=92\\a=4

<em>Find the measure of angle EBH</em>

m∠EBH=(4(4)+45)=61°

Remember that

m∠EBH=m∠HBC

therefore

The measure of angle HBC is m∠HBC=61°

8 0
2 years ago
What is the quotient (3x4 – 4x2 + 8x – 1) ÷ (x – 2) brainly
Karolina [17]

To find our quotient we are going to perform long division.

Long division step by step:

Step 1. Write the polynomial (dividend) in descending order (from highest to least exponent). If you encounter a missing term, use zero to fill the space of the term in the descending sequence.

Notice that even tough our polynomial is written in descending form, x^3 is missing, so we are going to use 0x^3 to fill the gap:

3x^4-4x^2+8x-1

3x^4+0x^3-4x^2+8x-1

Step 2. Divide the first term of the polynomial (dividend) by the first term of the divisor.

In our case the first term of the dividend is 3x^4 and the first term of the divisor is x, so \frac{3x^4}{x} =3x^3. Notice that 3x^3 is the first term of the quotient.

Step 3. Multiply the first term of the quotient by the terms of the divisor and subtract them from the respective term of the dividend.

The first term of our quotient (from the previous step) is 3x^3 and the divisor is (x-1), so 3x^3(x-2)=3x^4-6x^3. Now, we are going to subtract them from the respective term (the term with the same power) of the dividend. The respective terms of the dividend are 3x^4 and 0x^3, so 3x^4-3x^4=0 and 0x^3-(-6x^3)=0x^3+6x^3=6x^3

Step 4. Bring down the next term in the dividend and repeat the process for the remaining terms.

After finish the process (check the attached picture), we can conclude that the quotient of 3x^4-4x^2+8x-1 ÷ (x-2) is 3x^3+6x^2+8x+24 with a remainder of 47, or in a different notation: 3x^3+6x^2+8x+24+\frac{47}{x-2}

7 0
2 years ago
Read 2 more answers
The diameter of circle measure 18mm.what is the circumference of the circle?​
ziro4ka [17]

Answer:

18π mm

Step-by-step explanation:

C=2πr

d=2r, 18=2r, r=9

C=18π mm

4 0
2 years ago
Read 2 more answers
PLEASE HELP ME!
dezoksy [38]
Thicknesses at different point are: <span>41, 38, 36, 29, 34, 44, 46, 43, 35, 40


In increasing order: 29, 34, 35, 36, 38, 40, 41, 43, 44, 46

Median = (38+40)/2 = 39m</span>

Median thickness is 39m
5 0
2 years ago
Read 2 more answers
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