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
Valentin [98]
3 years ago
9

Factor 8x2 – 14x – 15

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
6 0

Answer:

(4x+3)(2x-5)

Step-by-step explanation:

8 factors: 1,8  2,4

-15 factors: -1,15  -3,5  -5,3  -15,1

(4x+3)(2x-5)

GalinKa [24]3 years ago
5 0

Answer:

(4x+3)(2x-5)

Step-by-step explanation:

You might be interested in
A certain brand of flood lamps has a lifetime that is normally distributed with a mean of 3,750 hours and a standard deviation o
vesna_86 [32]
Given that mean=3750 hours and standard deviation is 300:
Then:
<span>a. The probability that a lamp will last for more than 4,000 hours?
P(x>4000)=1-P(x<4000)
but
P(x<4000)=P(z<Z)
where:
z=(x-</span>μ)/σ
z=(4000-3750)/300
z=0.833333
thus
P(x<4000)=P(z<0.8333)=0.7967
thus
P(x>4000)=1-0.7967=0.2033

<span>b.What is the probability that a lamp will last less than 3,000 hours?
P(x<3000)=P(z<Z)
Z=(3000-3750)/300
z=-2.5
thus
P(x<3000)=P(z<-2.5)=0.0062

c. </span><span>.What lifetime should the manufacturer advertise for these lamps in order that only 4% of the lamps will burn out before the advertised lifetime?
the life time will be found as follows:
let the value be x
the value of z corresponding to 0.04 is z=-2.65
thus
using the formula for z-score:
-2.65=(x-3750)/300
solving for x we get:
-750=x-3750
x=-750+3750
x=3000</span>
7 0
3 years ago
Quiz
Tasya [4]

Answer:

1603

Step-by-step explanation:

3^3*4^3-5^3

__________

3*3*3=9*3=27

4*4*4=16*4=64

5*5*5=25*5=125

(27*64)-125

1728-125

1603

7 0
2 years ago
Read 2 more answers
Need Help plz it has to be done now
lorasvet [3.4K]

Answer:

38 ft

Step-by-step explanation:

:)

4 0
2 years ago
Read 2 more answers
12.10 rounding to the nearest 10th
Sedaia [141]

Answer:

12

Step-by-step explanation:

Your answer is 12. I hope this helps!!!

6 0
2 years ago
Y=3x+13<br> 2x=y-9<br> Solve for x and y points using addition method
GrogVix [38]
y=3x+13 \\&#10;2x=y-9 \ \ \ |-y-2x \\ \\&#10;y=3x+13 \\&#10;\underline{-y=-2x-9} \ \ \ \hbox{add the sides} \\&#10;y-y=3x-2x+13-9 \\&#10;0=x+4 \\&#10;x=-4 \\ \\&#10;y=3x+13=3 \times (-4)+13=-12+13=1 \\ \\&#10;\boxed{(x,y)=(-4,1)}
6 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the system 3x – 2y = 1<br> 2x + 2y = 4
    8·1 answer
  • A line passes through (9,-8) and has a slope of negative 4/3
    11·1 answer
  • If a math class consists of 21 students total there are five more boys than girls, how many girls are there in the class
    10·1 answer
  • A mouse has made holes in opposite corners of a rectangular kitchen. Starting from its hole
    7·1 answer
  • A salesman sells cars with prices ranging from $5,000 to $45,000. the histogram shows the distribution of the numbers of cars he
    10·1 answer
  • The perimeter of a rectangle is 42 cm. The width is 7 cm less than the length.
    10·2 answers
  • The ratio of frogs to swans is 2:6. What is the ratio of swans to the total number of animals.
    7·1 answer
  • The circle below is centered at the origin and has a radius of 4. What is its
    8·2 answers
  • F(x) = –22 + 10x – 2<br> Find f(-5)
    12·1 answer
  • Guys pls helpp me!!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!