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
stiv31 [10]
3 years ago
7

15 points for someone who can answer & explain this to me thanks

Mathematics
1 answer:
iris [78.8K]3 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

Given

\frac{9}{a^2+9a+20} , \frac{7a}{a^2+11a+28}

Factor the denominators of both fractions

\frac{9}{(a+4)(a+5)} , \frac{7a}{(a+4)(a+7)}

The lowest common denominator of both fractions is (a + 4)(a + 5)(a + 7)

Multiply numerator/denominator of first fraction by (a + 7)

Multiply numerator/denominator of second fraction by (a + 5 )

\frac{9(a+7)}{(a+4)(a+5)(a+7)} , \frac{7a(a+5)}{(a+4)(a+5)(a+7)} , then

\frac{9a+63}{(a+4)(a+5)(a+7)} , \frac{7a^2+35a}{(a+4)(a+5)(a+7)}

You might be interested in
A pool measuring 16 meters by 18 meters is surrounded by a path of uniform​ width, as shown in the figure. If the area of the po
xenn [34]

Answer:

occording to my calculations its 13.00sqm

Step-by-step explanation:

3 0
4 years ago
200% of what number is 350?
ExtremeBDS [4]
We have, 200% × x = 350
or,
200
100
× x = 350
Multiplying both sides by 100 and dividing both sides by 200,
we have x = 350 ×
100
200
x = 175
If you are using a calculator, simply enter 350×100÷200, which will give you the answer.
8 0
3 years ago
Read 2 more answers
One centimeter is what times as long as one millimeter
Likurg_2 [28]
One centimeter equals 10 millimeters.
5 0
3 years ago
What is the yintercept of the function, represented by the table of values below?
gogolik [260]

Answer:

A. 9

Step-by-step explanation:

First find the slope (m) using two given pairs of values form the table, say (1, 6) and (2, 3):

Slope (m) = change in y/change in x

Slope (m) = (3 - 6)/(2 - 1) = -3/1

Slope (m) = -3

Next, substitute (1, 6) = (x, y) and m = -3 into y = mx + b and solve for y-intercept (b).

Thus:

6 = -3(1) + b

6 = -3 + b

Add 3 to both sides

6 + 3 = -3 + b + 3

9 = b

b = 9

y-intercept = 9

7 0
3 years ago
A bag contains marbles of which 8 are blue; 5 are red; 3 are yellow, and 4 are orange. What is the probability of randomly drawi
Paha777 [63]
I think the answer is 12/20 or 3/5 because out of the 20 marbles you are drawing 4 orange and 8 blue and replacing it. So 8+4=12 and there are 20
4 0
3 years ago
Other questions:
  • What is the slope of the line shown below ?
    6·1 answer
  • Express the function y = 2 x 2 + 8 x + 1 in vertex form.
    14·1 answer
  • When was homework created
    14·2 answers
  • Y=15*3^x for x=3 =?........
    6·1 answer
  • Write the equation in slope-intercept form 2x−8y=24
    5·2 answers
  • A line passes through the point (-8,-5) and has a slope of 3/4. Write an equation in slope intercept form for this line.
    10·1 answer
  • HELP PLEASE ANSWER QUICKLY!
    12·2 answers
  • Solve the equation.<br><img src="https://tex.z-dn.net/?f=%20%7B3%7D%5E%7B4%28m%20%2B%201%29%7D%20%20%2B%20%20%7B3%7D%5E%7B4m%7D%
    9·2 answers
  • Can you please help me please i need real people not robots
    15·2 answers
  • The diameter of a circle is 1034 inches.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!