Pls help will mark brainlis

Mathematics

1 answer:

MrRissso [65]3 years ago

3 0

Exponents

5^2

4^2

8^2

7^2

3^2

9^2

12^2

Expound

5x5

4x4

8x8

7x7

3x3

9x9

12x12

Perfect square

144

Hope I helped you :)

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Question 2: show working out

kherson [118]

Answer in fraction form is exactly 2/27
Answer in decimal form is approximately 0.07407

========================================================

Explanation:

4 people play both,9 play flat flute only, 12 play piano only.
So 4+9+12 = 13+12 = 25 people play one instrument only or they play both.

We have 27 people total meaning that 27-25 = 2 play neither instrument.

Divide the values 2 and 27 to get
2/27 = 0.07407
this value is approximate (rounded to five decimal places)

5 0

3 years ago

A group of family went to the store and bought burgers. The first family bought 4 hamburger and 3 cheeseburger for $31. The seco

olganol [36]

I belive the price is 4.4 or $4.40c

8 0

3 years ago

is (-1/2 x + 6/7) - (7/2 x - 4/7) equivalent to -4 x + 2/7 ? use the properties of operations to justify your answer

LuckyWell [14K]

Answer:

The given equation is NOT justified.

Step-by-step explanation:

Here, the given equation is $(\frac{-1}{2}x + \frac{6}{7} ) - (\frac{7}{2}x - \frac{4}{7} )$ = $-4x + \frac{2}{7}$

Now, here Consider the left hand side and simplifying the left side by operating on the like terms,

⇒ $(\frac{-1}{2}x + \frac{6}{7} ) - (\frac{7}{2}x - \frac{4}{7} )$ = $\frac{-1}{2}x + \frac{6}{7} - \frac{7}{2}x + \frac{4}{7} = (\frac{-1}{2}x -\frac{7}{2}x) + (\frac{6}{7} + \frac{4}{7})$