2 years ago

Needs help answering

Mathematics

1 answer:

konstantin123 [22]2 years ago

6 0

Answer:

Step-by-step explanation:

the answer is 26

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M(x)=x^2-3x N(x)=x-5 MN(-1)= ? A.18 B.-20 C.-22 D. -24

schepotkina [342]

Answer:

d. -24

Step-by-step explanation:

M(-1)=(-1)^2-3(-1)

M(-1)=1+3

M(-1)=4

N(-1)=-1-5

N(-1)=-6

MN(-1)=(4)(-6)

MN(-1)=-24

3 0

3 years ago

Find the average value of the function f(t)=cos13(5t)sin(5t) f(t)=cos13⁡(5t)sin⁡(5t) on the interval [4,10].

Vilka [71]

The average value is given by

$\displaystyle\frac1{10-4}\int_4^{10}\cos^{13}5t\sin5t\,\mathrm dt$

Setting $y=\cos5t$ , you get $\mathrm dy=-5\sin5t\,\mathrm dt$ , and the integral becomes

$\displaystyle-\frac1{30}\int_{\cos20}^{\cos50}y^{13}\,\mathrm dy$
$=-\dfrac1{30}\dfrac{y^{14}}{14}\bigg|_{y=\cos20}^{y=\cos50}$
$=-\dfrac{\cos^{14}50-\cos^{14}20}{420}\approx-0.00145$

6 0

3 years ago

Find a point slope form for the line with slope 1/5 and passing through the point (-3,-9)

alisha [4.7K]

Answer:

y+9=1/5(x+3)

Step-by-step explanation:

Point slope formula: y-y1=m(x-x1)

slope=m

m=1/5

-3=x1 -9=y1

y-(-9) =1/5(x-(-3))

simplify...

y+9=1/5(x+3)

hope this helps!! :)

5 0

3 years ago

Find the balance in an account at the end of 8 years if $6000 is invested at an interest rate of 4.2% that is compounded continu

BARSIC [14]

B , the second option, is your answer

7 0

3 years ago

Least to greatest 35%, 32/100, 1/3, .305, 3/10

Goryan [66]

Answer: 3/10 , 32/100 , 1/3 , 35% , 305

Step-by-step explanation:

1. Change 3/10 to a decimal

= 0.3

2. change 32/100 to a decimal

=0.32

3. Change 1/3 to a decimal

=0.3

4. Order and Done !

6 0

3 years ago

Read 2 more answers