3 years ago

The high temp was 23 degrees. The low was -3 degrees.

Mathematics

1 answer:

vampirchik [111]3 years ago

5 0

Answer:

Step-by-step explanation:

-3 + 23 = -26

its asking for distance so take off the - sign

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8. Suppose the curve y = x4 + ax3 + bx2 + cx + d has a tangent line when

erastova [34]

Answer:

a=1, b=-6, c=2, d=1

Step-by-step explanation:

You are given the function

$y=x^4+ax^3+bx^2+cx+d$

Find the derivative:

$y'=4x^3+3ax^2+2bx+c$

The curve has a tangent line when x = 0 with equation y = 2x + 1, so

$y'(0)=2\\ \\y(0)=1$

Hence,

$y'(0)=4\cdot 0^3+3a\cdot 0^2+2b\cdot 0+c=2\Rightarrow c=2\\ \\y(0)=0^4+a\cdot 0^3+b\cdot 0^2+2\cdot 0+d=1\Rightarrow d=1$

The curve has a tangent line when x = 1 with equation y = -3x + 2, so

$y'(1)=-3\\ \\y(1)=-3+2=-1$

So,

$y'(1)=4\cdot 1^3+3a\cdot 1^2+2b\cdot 1+c=4+3a+2b+2=-3\Rightarrow 3a+2b=-9\\ \\y(1)=1^4+a\cdot 1^3+b\cdot 1^2+2\cdot 1+d=1+a+b+2+1=-1\Rightarrow a+b=-5$

From the second equation, a=-5-b, substitute it into the first one:

$3(-5-b)+2b=-9\\ \\-15-3b+2b=-9\\ \\-b=-9+15\\ \\-b=6\\ \\b=-6\\ \\a=-5-b=-5-(-6)=-5+6=1$

7 0

4 years ago

The material point moves in a straight line according to the law s (t) = t ^ 2 + 10t - 5, the stage of the point's velocity at t

nikitadnepr [17]

Answer:

I think the answer is 19

Step-by-step explanation:

5 0

3 years ago

Find the HCF of <br><img src="https://tex.z-dn.net/?f=5x%20%7B%7D%5E%7B2%7D%20%20-%20125%2Cx%20%7B%7D%5E%7B2%7D%20%20%2B%2025and

Fantom [35]

Answer:

Step-by-step explanation:

5x^2 - 125 factors into 5 (x^2 - 25)

x^2 - 25 factors into (x + 5)(x - 5)

So the answer to this part is 5(x + 5)(x - 5)

x^2 - 10x + 25 factors into

(x - 5)(x - 5)

So the HCF is (x - 5)

5 0

2 years ago

Is Garrett's slope correct? If not, identify his error?

dimulka [17.4K]

Answer:

B. No. He should have put the x values in the

denominator and the y values in the numerator.

Step-by-step explanation:

Took the assignment

8 0

3 years ago

Read 2 more answers

Which equation below would be perpendicular to the line x = 5 and goes through the point (2, 6)?

Leno4ka [110]

Answer:

this also I do not know plz tell answer is will also practice

4 0

3 years ago