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Murrr4er [49]
3 years ago
15

Which expression is equivalent to 64 − 9x2?

Mathematics
2 answers:
Cloud [144]3 years ago
7 0
(8)2-(3x)2 is the correct formula
soldi70 [24.7K]3 years ago
6 0

Answer:

The equivalent Expression is ( 8 - 3x )( 8 + 3x )

Step-by-step explanation:

Given : Expression = 64-9x^2

To find: An Equivalent expression to given expression

We find equivalent Expression by simplifying the given expression

Consider,

64-9x^2

\implies 8^2 - (3x)^2

by using an identity, a^2-b^2=(a-b)(a+b) . we get,

\implies (8-3x)(8+3x)

Therefore, The equivalent Expression is ( 8 - 3x )( 8 + 3x )

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2 = x-3, then x equals
spayn [35]

Answer:

x = 5

Step-by-step explanation:

2 = x-3

<em>Adding 3 to both sides</em>

2+3 = x

5 = x

<u><em>OR </em></u>

x = 5

4 0
3 years ago
Read 2 more answers
Solve the equastion for x + 2 1/2 =10
Virty [35]

Answer:

x= 7 1/2

Step-by-step explanation:

Subtract the 1/2 to get it out of the way (whatever you do on one side of the = sign you have to do to the other)

So 10- 1/2= 9 1/2

Subtract the 2 to get it out of the way

9 1/2-2=

7 1/2

Hope it helped :)

8 0
2 years ago
Write an equation for the following situation:
IRISSAK [1]
Y * x = $300    hope it helps   
3 0
3 years ago
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Luke can buy bottles of water in packages of 6 for $15.24 or in packages of 4 for $11.16. How much money does he save by buying
creativ13 [48]

Answer:

6\ for\ \$15.24\ is\ better\ price\\\\Total\ saving=\$12

Step-by-step explanation:

Cost at the rate 6 for $15.24:

Cost of 6 bottles=\$15.24

Cost of 1 bottle=\$\frac{15.24}{6}

Cost of 48 bottles=\frac{15.24}{6}\times 48=15.24\times 8=\$121.92

Cost at the rate 4 for $11.16:

Cost of 4 bottles=\$11.16

Cost of 1 bottle=\frac{11.16}{4}

Cost of 48 bottles=\frac{11.16}{4}\times 48=11.16\times 12=\$133.92

Hence 6\ bottles\ for\ 15.24 is less expensive.

Total saving=133.92-121.92=\$12

6 0
3 years ago
there are 5 tables in the library.four students are sitting at each table. how many students are sitting in the library?
zubka84 [21]

Answer:

20 students are sitting in the library

Step-by-step explanation:

4 · 5 = 20

8 0
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