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Rudik [331]
3 years ago
6

Express 4x^2-25 as a product of two binomials.

Mathematics
2 answers:
Ede4ka [16]3 years ago
8 0
4x^2-25=(2x)^2-5^2=(2x-5)(2x+5)
Andrei [34K]3 years ago
5 0

4x^2-25= (2x)^2-5^2=(2x-5)(2x+5)

Used: a^2-b^2=(a+b)(a-b)

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Gaby plays on volleyball team. In the two games she scored 3/5 of the total number of points her team scored. Her team scored 25
hjlf

Answer:

Gaby scored 27 points.

Step-by-step explanation:

First, you have to find 3/5 of both of the numbers.

What I did was I found 1/5 of each number and multiplied it by 3.

25/5=5, so 1/5 of 25 is 5. 5(3)= 15, so Gaby scored 15 points in the first game.

20/5= 4, so 1/5 of 20 is 4. 4(3)= 12, so Gaby scored 12 points in the second game.

Finally, add 15+12, which equals 27 :).

5 0
3 years ago
Which formula should be used to find the circumference of a circle
aleksandrvk [35]


If a circle has radius
R, its circumference equals to
2πR where π is an irrational number that, approximately, equals to
3.1415926

7 0
3 years ago
9= 2/3 (x+12) plz help
avanturin [10]

Answer:  x=3/2  

Step-by-step explanation:

Multiply the parentheses by 2/3.  9=2/3x+8.

Multiply  both sides by 3 .  27=2x+24

Move the term. When moved to the left side it changes from positive to a negative.  -2x=24-27.

-2x=-3

Divide both sides by -2

x=3/2   (x=1 1/2, x=1.5)

5 0
3 years ago
Identify the four step used to solve this equation 4(x-7)=2x-6
irinina [24]
1. Solve the bracket 4×x and 4 × -7
4x-28=2x-6
2. Get the x on one side and the numbers on the other so: first +28
4x=2x+22 now -2x
so 2x=22 and now you only need to divide into 2
x=11
3 0
3 years ago
Combine these radicals. 8√5 + 2√45
Greeley [361]
<span>8√5 + 2√45
= </span><span>8√5 + 6√5
= 14</span>√5

hope it helps
8 0
3 years ago
Read 2 more answers
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