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kumpel [21]
3 years ago
12

If the product of roots of the equation given below is 4, then find the value of m.

Mathematics
1 answer:
Vikentia [17]3 years ago
8 0

Answer:

m=-2

Step-by-step explanation:

As the product of the roots of a quadratic equation is c/a in ax^2+bx+c=0

here a=2, b=+8, c=-m^3

Given c/a=4

-m^3/2=4

-m^3=8

m^3= -8

m=-2.

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lapo4ka [179]

Answer:

It's C :)

Step-by-step explanation:

The vertical line test is drawing lines on the function

4 0
3 years ago
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Given the function f(x)=x^2-8x+13f(x)=x, determine the average rate of change of the function over the interval −1≤x≤6.
Ann [662]

Given:

Consider the given function is:

f(x)=x^2-8x+13

To find:

The average rate of change of the function over the interval -1\leq x\leq 6.

Solution:

The average rate of change of the function f(x) over the interval [a,b] is:

m=\dfrac{f(x_2)-f(x_1)}{x_2-x_1}

We have,

f(x)=x^2-8x+13

At x=-1,

f(-1)=(-1)^2-8(-1)+13

f(-1)=1+8+13

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At x=6,

f(6)=(6)^2-8(6)+13

f(6)=36-48+13

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Now, the average rate of change of the function f(x) over the interval -1\leq x\leq 6 is:

m=\dfrac{f(6)-f(-1)}{6-(-1)}

m=\dfrac{1-22}{7}

m=\dfrac{-21}{7}

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Therefore, the average rate of change of the function f(x) over the interval -1\leq x\leq 6 is -3.

6 0
3 years ago
Alice needs 3/7 kilograms of flour for making a cake. How many of flour does she needs for making 42 cakes?
Oduvanchick [21]
Hey there!

3/7 is needed for 1 cake

If she needs to make 42 cakes, then multiply the amount for 1 by 42

42 × 3/7 = 126/7 = 18

She needs 18 kilograms of flour to make 42 cakes

Hope this helps :)
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3 years ago
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ELEN [110]

Answer:

D

Step-by-step explanation:

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6 0
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The speed limit on a neighborhood road is 35 miles per hour. You can write the inequality s 35.
Maksim231197 [3]
The Answer is C
Hope I Helped

8 0
3 years ago
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