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
horrorfan [7]
3 years ago
11

What is the GCF for 7x2 + 21?

Mathematics
1 answer:
laiz [17]3 years ago
4 0

Answer:

35

Step-by-step explanation:

<u>7x2</u>+21

<u>14+21</u>

35

*The underlined problems is what you do first*

You might be interested in
Module 3 DBA: What key features can be identified from graphs of polynomials of higher-
Ksju [112]

Answer:

Bro Man thats OP

Step-by-step explanation:

4 0
2 years ago
-3 +<br> (- 1/6) what is ansewe help asap
vichka [17]

Answer:

-3.16666666667

Step-by-step explanation:

3 0
3 years ago
Questions 2-7 will all be in regards to this data set:Observation X Y1 20 302 23 353 28 404 26 385 24 376 32 457 35 508 24 349 3
Tomtit [17]

Answer:

r =0.4437

Step-by-step explanation:

We have the follwoing dataset:

X: 20,23,53,4,24,32,35,24,31,23

Y: 30,35,40,38,37,45,50,34,42,32

n=10

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

And in order to calculate the correlation coefficient we can use this formula:

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}  

For our case we have this:

n=10 \sum x = 269, \sum y = 383, \sum xy = 10609, \sum x^2 =8645, \sum y^2 =15007  

Th excel figure attached shows the calculations for each sum.

r=\frac{10(10609)-(269)(383)}{\sqrt{[10(8645) -(269)^2][10(15007) -(383)^2]}}=0.4437  

So then the correlation coefficient would be r =0.4437

3 0
4 years ago
If x= 1/2-√3 , prove that x³-2x²-7x+5=3
prohojiy [21]
x=\frac{1}{2}-\sqrt3\\\\x^3-2x^2-7x+5=3\\\\(\frac{1}{2}-\sqrt3)^3-2(\frac{1}{2}-\sqrt3)^2-7(\frac{1}{2}-\sqrt3)+5\\\\=(\frac{1}{2})^3-3\cdot(\frac{1}{2})^2\cdto\sqrt3+3\cdot\frac{1}{2}\cdot(\sqrt3)^2-(\sqrt3)^3-...\\\\...-2[(\frac{1}{2})^2-2\cdot\frac{1}{2}\cdot\sqrt3+(\sqrt3)^2]-\frac{7}{2}+7\sqrt3+5

=\frac{1}{8}-\frac{3\sqrt3}{4}+\frac{9}{2}-3\sqrt3-2(\frac{1}{4}-\sqrt3+3)-\frac{7}{2}+7\sqrt3+5\\\\=\frac{1}{8}+\frac{9}{2}-\frac{1}{2}-6-\frac{7}{2}+5-\frac{3}{4}\sqrt3-3\sqrt3+2\sqrt3+7\sqrt3\\\\=\frac{1}{8}+\frac{1}{2}-1+5\frac{1}{4}\sqrt3=\frac{1}{8}-\frac{1}{2}+5\frac{1}{4}\sqrt3=\frac{1}{8}-\frac{4}{8}+5\frac{1}{4}\sqrt3\\\\=-\frac{3}{8}+5\frac{1}{4}\sqrt3\neq3
6 0
3 years ago
Find the gcf of <br> 24, 14, 21
kobusy [5.1K]

Answer:

1

Step-by-step explanation:

All the numbers provided can have a factor of 1.

eg.)

1*24=24

1*14=14

1*21=21

This is because there is only one factor they all commonly share, 1.

4 0
4 years ago
Read 2 more answers
Other questions:
  • How do I solve number 15
    6·1 answer
  • What is the value of x? 0.9(x 1.4)−2.3 0.1x=1.60.9(x 1.4)−2.3 0.1x=1.6 enter the answer as a decimal
    12·2 answers
  • What is the solution of the equation?<br>6/7 x - 8 = 7
    15·1 answer
  • The price of mailing a small package is 0.32 $ for the 1st ounce and $0.21 for each additional ounce. Sandra put $1.16 to mail h
    12·2 answers
  • What is the slope for a line that passes through (2,5) and (6,7)?
    8·2 answers
  • Could someone help pls ty
    12·1 answer
  • Which word expression represents the algebraic expression shown?<br><br> 12 – 3x
    13·1 answer
  • Find the Missing Angle)
    14·2 answers
  • Which expression has a value of 16?
    14·2 answers
  • HELP PLS!!!!!!!!!!!!!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!