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
riadik2000 [5.3K]
2 years ago
7

Factorise fully 15x-10

Mathematics
1 answer:
padilas [110]2 years ago
6 0

Answer:

15

x

+

10

y

Factor

5

out of

15

x

.

5

(

3

x

)

+

10

y

Factor

5

out of

10

y

.

5

(

3

x

)

+

5

(

2

y

)

Factor

5

out of

5

(

3

x

)

+

5

(

2

y

)

.

5

(

3

x

+

2

y

)

Step-by-step explanation:

You might be interested in
A fast food restaurant executive wishes to know how many fast food meals teenagers eat each week. They want to construct a 99% c
Lana71 [14]

Answer:

The minimum sample size required to create the specified confidence interval is 2229.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.575

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

What is the minimum sample size required to create the specified confidence interval

This is n when M = 0.06, \sigma = 1.1

0.06 = 2.575*\frac{1.1}{\sqrt{n}}

0.06\sqrt{n} = 2.575*1.1

\sqrt{n} = \frac{2.575*1.1}{0.06}

(\sqrt{n})^{2} = (\frac{2.575*1.1}{0.06})^{2}

n = 2228.6

Rounding up

The minimum sample size required to create the specified confidence interval is 2229.

7 0
3 years ago
Solve the expression x^2-100=0
enot [183]

Answer:

x = ± 10

Step-by-step explanation:

Given

x² - 100 = 0 ( add 100 to both sides )

x² = 100 ( take the square root of both sides )

x = ± \sqrt{100} ← note plus or minus, hence

x = ± 10

6 0
3 years ago
How do you do 5+5?
steposvetlana [31]

Answer:

If you had 5 apples and Johnny gave you five more how much do you have? Lets count

10 OMG 5+5 is 10

6 0
3 years ago
In the expression 14b what is the coefficient? *
Pachacha [2.7K]

Answer:

14

Step-by-step explanation:

4 0
2 years ago
I need help please thanks for helping
tresset_1 [31]
I cant see on my
 computer sorry<span />
3 0
3 years ago
Read 2 more answers
Other questions:
  • Caroline has 4 green cards, 3 red cars, 3 orange cards, and 1 gold card. if she discards the gold card, what percent of her rema
    10·1 answer
  • A furniture store charges by the mile to make deliveries. The fee to deliver furniture 28 miles was $10.50. What fee will be cha
    15·1 answer
  • To solve the equation below by completing the square, what is your first step?<br> 3x^2+18x=21
    6·1 answer
  • Which of the following best describes the parallelograms shown below?​
    10·1 answer
  • A convex hexagon has interior angle measures of 150 degrees, 3x, 2x, 4x + 24, and 3x + 50.
    15·1 answer
  • Compute the average value of the following function over the region R. f(x,y) = 7 sin x cos y R= { (x,y): 0 leq x leq pi/2, 0 le
    10·1 answer
  • Find the values of the six trigonometric functions of an angle in standard position if the point with coordinates (12, 5) lies o
    8·2 answers
  • Give 5 Examples of Linear Equation in Two Variables​
    9·2 answers
  • PLEASE HELP ME I REALLY NEED HELP!!
    14·1 answer
  • 00010000.00100010.10000100.10000001
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!