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alexgriva [62]
3 years ago
10

A solution of the equation x^2/4=9 is

Mathematics
1 answer:
abruzzese [7]3 years ago
5 0

Answer:

x = ±6

Step-by-step explanation:

x^2/4=9

Multiply by 4 on each side

x^2/4 *4=9*4

x^2 = 36

Take the square root of each side

sqrt(x^2) = ±sqrt(36)

x = ±6

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Step-by-step explanation:

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3 years ago
In game 1 emerson struck out 30 times in 90 times at bat in game 2 he struck out 40 times in 120 times at bat
Agata [3.3K]

Answer:

a) 32

b) 67.613

Step-by-step explanation:

<em><u> In Game 3, Emerson struck out 42 times in 140 times at-bat.</u></em>

<em><u>Part A</u></em>

<em><u>Drag numbers to complete the proportion to represent the percent of strikeouts per at-bats.</u></em>

<em><u>Numbers may be used once or not at all.</u></em>

<em><u /></em>

<em><u>Part B</u></em>

<em><u>What percentage of times at bat did Emerson actually hit the ball?</u></em>

Part A

Total number of strikeouts= 30+40+42= 112

Total number of at bats = 90+120+140= 350

strikeouts : times

112: 350

p:100

Using cross product rule

p/100= 112/350

p * 350= 112*100

or p= 11200/350= 32

It means that there were 32 strikeouts if 100 times were bat at hits.

Part B:

Total number of strikeouts= 30+40+42= 112

Total number of at bats = 90+120+140= 350

But we need the percentage of times at bat hit

Therefore

Hits= times - strikeouts= 350-112= 238

Percentage = 238/352*100= 67.613

Check

The above answers are correct because

100-32 = 68

68 ≅ 67.613

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3 years ago
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EleoNora [17]

Answer:

log7(x-2)

Step-by-step explanation:

Use of property: log(ab) = log(a) + log(b)

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