3 years ago

Find the sum 7a/a+5 + a/a-2

Mathematics

1 answer:

IRINA_888 [86]3 years ago

8 0

$\dfrac{7a}{a+5}+\dfrac{a}{a-2} \\\dfrac{7a(a-2)+a(a+5)}{(a+5)(a-2)} \\\boxed{\dfrac{a(8a-9)}{(a+5)(a-2)}}$

Hope this helps.

You might be interested in

Tom races his bicycle for 140 ft. A wheel of his bicycle turns 35 times as the bicycle travels this distance. What is the diamet

inna [77]

Answer:

1.3 ft

Step-by-step explanation:

perimeter = 140/35 = 4 ft

diameter = 4 ft/ 3.14 = 1.3 ft

6 0

3 years ago

Read 2 more answers

Point A(3,2) is on a circle whose center is C(−2,3). What is the radius of the circle?

goldfiish [28.3K]

Answer:

The radius of the circle is √26.

Step-by-step explanation:

Since point A is on the circle, the distance between that point and the center of the circle is equal to the radius.

To find the distance between two points, the following equation should be used:

$x^{2} =(x_{A}- x_{C}) ^{2} + (y_{A}- y_{C}) ^{2}$

Replacing the numeric values:

$r^{2} =(3- (-2)) ^{2} + (2-3) ^{2}\\r^{2} =(5) ^{2} + (-1) ^{2}\\r=\sqrt{26}$

The radius of the circle is √26.

6 0

3 years ago

HELPPP. : You were given a Starbucks gift card for your birthday. One day, you used the gift card to order 3 drinks that cost $5

dexar [7]

Answer:

The card had 41.60 originally

Step-by-step explanation:

3 x 5.20 = 15.60

15.60 + 26.00 = 41.60

unless there is tax

7 0

3 years ago

I need the answers to the fill in bubbles.

DochEvi [55]

System A: The system has exactly one solution (3,1)
System B: No Solution
System C: Infinite many solutions

7 0

3 years ago

Read 2 more answers

if a right triangle has on leg measuring 27 and another measuring 22 what is the length of the hypotenuse??

Zanzabum

Use the equation c^2 = a^2 + b^2.

6 0

3 years ago