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2 years ago

Keeping the properties of exponents in mind to what power must your raise the expression 7 1/2 to get 7 as a result

Mathematics

1 answer:

exis [7]2 years ago

3 0

Answer:

x=2

Step-by-step explanation:

(7^ (1/2))ˣ = 7¹

1/2 *x =1

x =2

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If EG=67, then EF=? There is a picture below

ikadub [295]

If EG=67 we have (3x+7)+(5x-4)=67
let's simplify
$67 = (3x + 7) + (5x - 4) \\ 67 = 8x + 3 \\ 64 = 8x \\ \frac{64}{8} = x \\ 8 = x$
now we know x is 8 we can use this to find EF
since EF=3x+7
$3(8) + 7 = 24 + 7 = 31$
so we have EF is 31!
if.you like my answer please rate Brainliest

3 0

3 years ago

Read 2 more answers

Zara has forgotten her 4-digit PIN code. She knows the first digit is a prime number and the 4 digits make a number divisible by

vredina [299]

Answer:

2,500 different sets

Step-by-step explanation:

According to the scenario, calculation of the given data are as follows,

Let 4-digit PIN code be WXYZ

As first digit is a prime number

So, W = 1, 2, 3, 5, 7

n(W) = 5

X and Y are number from 0 - 9

So, n(X) = 10 & n(Y) = 10

Z makes the whole number divisible by 2.

So, Z must even number

So, Z = 0,2,4,6,8 or n(Z) = 5

We can calculate the number of different sets by using following formula,

n(W) × n(X) × n(Y) × n(Z)

By putting the value, we get

5 × 10 × 10 × 5 = 2,500

6 0

2 years ago

(5.2 x 104) + (3.4 x 10^) 8.6 x 108 1.8 x 104 8.6 x 104 4.2 x 10 5

PilotLPTM [1.2K]

Answer:

answer not possible.

Step-by-step explanation:

6 0

3 years ago

Solve the quadratic equation by completing the square.

vampirchik [111]

Answer:

x = -4.59, -7.41.

Step-by-step explanation:

x^2 + 12x + 34 = 0

(x + 6)^2 - 36 +34 = 0

(x + 6)^2 = 36 - 34 = 2

x + 6 = +/-√2

x = +/-√2 - 6

x = -4.59, -7.41

7 0

2 years ago

Working as a waiter, Micheal earns $6.50 per hour plus tips. Last night he received $38.50 in tips. And earned a total of $74.25

r-ruslan [8.4K]

74.25 minus 38.50 equals 35.75 then do 35.75 divided by 6.50 which is 5.5 so he worked 5 and a half hours

8 0

3 years ago