All categories

3 years ago

Solve the equation x^3-5x^2+2x+8=0 given that -1 is a zero of f(x)=x^3-5x^2+2x+8

Mathematics

1 answer:

liraira [26]3 years ago

3 0

-1^3-5(-1)^2+2(-1)+8
-1-5-2+8
-6-2+8
-8+8=0

You might be interested in

CAN SOMEONE HELP ME PLEASEREE

crimeas [40]

It’s a) 51

51
+49
———
100

6 0

2 years ago

Read 2 more answers

What is 18 divided by 6 and add 4? lk it sounds easy but yep

snow_lady [41]

18 divided by 6 is 3

when you add 3 with 4 it gives you 7

7 is your total answer

8 0

3 years ago

Read 2 more answers

Carl ran around the track 3 more times than Daria and 2 fewer times than Erin. When they were done they added up the number of l

Paul [167]

Answer:

Total laps = 10d

Step-by-step explanation:

Let c = Carl's laps

d = Daria's laps

e = Erin's laps

c = 3d

c = e/2

c + d + e = totals laps

We can insert 3d in place of c in the third equation

3d + d + e = total laps

Also, e/2 equals 3d

e/2 = 3d

Multiply both sides by 2

(e/2 = 3d)2

e = 6d

Insert the new e

3d + d + 6d = 10d = totals laps

3 0

2 years ago

What are Prime numbers?

VikaD [51]

A prime number is a natural number greater than 1 that can't be the factory of multiplying two smaller natural numbers.

7 0

3 years ago

Given the parent function f(x) = x², define the function g(x) that

Bas_tet [7]

Answer:

Part 1) $g(x)=-x^{2}$

Part 2) $g(x)=(x+3)^{2}$

Part 3) $g(x)=x^{2}+7$

Step-by-step explanation:

we have

The parent function is $f(x)=x^{2}$

This is a vertical parabola open upward with vertex at origin (0,0)

Part 1) Reflection over the x-axis

The rule of the reflection across the x=axis is equal to

(x,y) ------> (x,-y)

f(x) -----> g(x)

The function g(x) will be

$g(x)=-x^{2}$

Part 2) Horizontal shift left 3 units

The rule of the translation is

(x,y) ------> (x-3,-y)

f(x) -----> g(x)

The function g(x) will be

$g(x)=(x+3)^{2}$

Part 3) Vertical shift up 7 units

The rule of the translation is

(x,y) ------> (x,y+7)

f(x) -----> g(x)

The function g(x) will be

$g(x)=x^{2}+7$

5 0

3 years ago

Read 2 more answers