1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GenaCL600 [577]
3 years ago
15

For the polynomial below, -2 is a zero.

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

please note -2 is not a zero ,it should be 2 is a zero.

by synthetic division

2|  1  4 -10 -4

  |      2  12  4

  |----------------

     1  6   2  | 0

x²+6x+2=0

x=\frac{-6 \pm \sqrt{36-8} }{2} \\or~x=\frac{-6 \pm2\sqrt{7} }{2} \\or ~x=-3\pm \sqrt{7} \\h(x)=(x-2)(x^2+6x+2)=(x-2)(x-3+\sqrt{7} )(x-3-\sqrt{7})

You might be interested in
The wall below is 90% covered with graffiti. The entire wall is 228 ft2. How much square footage does the graffiti cover?
Rama09 [41]
205.2 square feet

Convert 90% to a decimal. You get .9 Multiply 228 by .9 to find what 90% of 228 is. You should get 205.2.
6 0
3 years ago
I need a little more help. Sorry for the spam questions.
Liula [17]
Perimeter is 28 and area is 32
3 0
2 years ago
Regan's New Year's resolution is to exercise more. Today, she plans to run 1.5 miles on the track around her school's football f
Contact [7]

Answer:

6 laps

Step-by-step explanation:

According to the scenario, calculation of the data are as follows:

Each lap = 0.25 miles

Regan's plan to run= 1.5 miles

So, we can calculate number of laps by using following formula,

Number of laps = Total miles to run ÷ each lap miles

By putting the value, we get

Number of laps = 1.5 miles ÷ 0.25 miles

= 6 laps

So, she should run 6 laps.

7 0
2 years ago
Find c.
Mazyrski [523]

Answer:

: c2 = a2 + b2 - 2ab cos C

c²=20²+15²-2×15×20×cos50

c²=400+225-600×0.64

c²=241

c=√241=15.5ft

7 0
2 years ago
Assume that price is an integer variable whose value is the price (in US currency) in cents of an item. Assuming the item is pai
cestrela7 [59]

Answer:

Change = (Paid*100) - Price

Step-by-step explanation:

First of all we need to know the relation between 1 dollar and 1 cent in order to express everything in the units required in the question.

We know that 1 dollar = 100 cents, so the amount paid for the item with single dollars has to be multiplied by 100 to express its value in cents.

Paid_{cents}=Paid_{dollars}*100

Now that we have everything in cents, we can make the subtraction:

Change_{cents} = Paid_{cents} -Price_{cents}

Replacing the value in cents we get:

Change = (Paid*100) - Price

4 0
3 years ago
Other questions:
  • Rady recycled 4 cans less than 3 times the number of cans Addison recycled, x. Which expression represents the total number of c
    8·1 answer
  • How many tens and ones in the number 82?
    5·2 answers
  • The fluoride minimum is 3 and maximum is 10
    15·1 answer
  • mr. brown has 78 pencils. he gave them to 8 children so that each child gets the same number of pencils. how many does each chil
    13·1 answer
  • How much is 19.5% of 600? Round the answer to the nearest whole number.
    6·1 answer
  • What is the axis of symmetry of -2x^2+12x-3
    11·1 answer
  • The amount of calories you consume after eating x
    8·1 answer
  • Need Help ASAP on this question
    9·2 answers
  • The height of an arrow shot into the air can be represented by the equation h=-16t^2+110t+6. what is the max height of the arrow
    7·1 answer
  • Area of an square is 144^2 how big is the circumstance of the square
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!