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
inessss [21]
3 years ago
15

Which is a factor of 2x^2+8x-90

Mathematics
1 answer:
raketka [301]3 years ago
5 0

Answer:

2(x-5)(x+9)

Step-by-step explanation:

1) divide whole thing by 2 you get  x^2+4x-45

2) from there you can factor it out to (x-5)(x+9)

3) Add the 2 back in on the front

You might be interested in
|9-(-1)|= simplify the expression
Hitman42 [59]

Answer:

10

Step-by-step explanation:

Remove parentheses.

|9+1|

Simplify  9+1  to 10.

|10|

simplify

10

7 0
3 years ago
Of the coffee makers sold in an appliance​ store, 4.0% have either a faulty switch or a defective​ cord, 2.5% have a faulty​ swi
lukranit [14]

Answer: Hence, Probability that a coffee maker will have a defective cord is 0.376=37.6%.

Step-by-step explanation:

Since we have given that

Let A be the event of getting a faulty switch.

Let B be the event of getting a defective cord.

Here, P(A∪B) = 4% = 0.04

P(A∩B) = 0.1% = 0.001

P(A) = 2.5% = 0.025

We need to find P(B):

As we know that

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\0.04=P(A)+0.025-0.001\\\\0.04=P(A)+0.024\\\\P(A)=0.04-0.024=0.376

Hence, Probability that a coffee maker will have a defective cord is 0.376=37.6%.

6 0
3 years ago
Which line shows theINITIAL error in volume work?
aliina [53]

In step 2, V = \frac{4}{3}(3.14)(37.5) show the error in volume work.

Solution:

Given data:

The steps shows it is sphere.

Radius of the sphere = 12.5

The value of π = 3.14

Volume of the sphere = \frac{4}{3} \pi r^3

Step 1:

$V=\frac{4}{3} (3.14)(12.5)^3

$V=\frac{4}{3} (3.14)(12.5)(12.5)(12.5)

Step 2:

$V=\frac{4}{3} (3.14)(1953.125)

Step 3:

$V=\frac{4}{3} (6132.81)

Step 4:

V = 8177.08 cubic units

This is the correct solution.

But in the given options, in step 2, 12.5 is multiplied by 3.

That is not the correct step. You have to do 12.5 × 12.5 × 12.5.

Hence in step 2, V = \frac{4}{3}(3.14)(37.5) show the error in volume work.

7 0
3 years ago
Your factory produces lemon-scented widgets. You know that each unit is cheaper, the more you produce. But you also know that co
Sindrei [870]

try using m athway . c o m for math help

8 0
3 years ago
Six years after a tree was planted, its height was 7 feet. Nine years after it was planted, its height was 16 feet. Which of the
horrorfan [7]
It is 
y-16=3(x-9)
y=3x-11 
b & c
7 0
3 years ago
Read 2 more answers
Other questions:
  • Use the formula A=bh , where A is the area, b is the base length, and h is the height of the parallelogram, to solve this proble
    5·2 answers
  • Mrs.Roberts purchased an electric fence to keep her dogs in her yard. Her yard is in the shape of a rectangle with length 16 yar
    12·1 answer
  • If you score 90% on an assignment, what is the ratio of correct questions to total questions?
    5·1 answer
  • A binomial random variable X is defined as the number of successes achieved in the n trials of a Bernoulli process. Describe an
    9·1 answer
  • 42/15•3/7<br> need help multiplying this
    12·1 answer
  • Liza buys 4 yards of fabric for $8.48. How much was the fabric per yard?
    7·2 answers
  • A farmer has the same number of chickens, cows and goats. Together, all these animals have 210 legs. How many chickens live on t
    13·2 answers
  • There are twelve people on the jury there were 4more man than women how many man were <br>there/
    6·2 answers
  • Two angles of a triangle measure 15° and 85°. What is the measure for the third angle
    11·1 answer
  • A force of 9 lb is required to hold ​35lb crate on a hill. What angle does the hill make with the​ horizontal?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!