Question

Help plsssssssssssssssssssssssssss

Answer 1

1. -9

2. D

3. D

4. x = 9

5. p = 50

6. =

Explanation:

1. -9

To solve number one you first use PEDMAS.

P - Parentesses -> In this problem, you have to solve the parentheses. This means you have to solve (9-4) and (2+6) first. 9-4 = 5 and 2+6 = 8

E - Exponets -> The next step is the solve the exponents. We have solved the parts n the parentheses and are left with
`(5)^2 + 5 * 6 - (8)^2\\\\`. Solving the exponents of 5 and 8. You get 25 and 64. Which leaves you with the problem of
`25 +5 *6 - 64`.

D and M - Divison and Multiplication -> Divison and multiplication comes first before addition and subtraction which means we do 5 times 6 instead of 25 + 5 or 6 - 64, doing 5 times 6 leaves us with the equation of
`25 + 30 -64`.

A and S - Addition and Subtraction -> When doing addition and subtraction you add and subtract left to right. Doing so gives us our answer of
`-9\\`.

2. D

The definition of a rational number is a number that can be written in the simplest form of an integer over an integer.

Therefore, knowing this definition gives us our answer of D.

3. D

To evaluate this problem you simply break apart the radical to be separated into the top and bottom. Solve and that's your answer.

`\sqrt{(16)/(49) } =\\\\(√(16))/(√(49)) =\\\\±(4)/(7) \\\\(4)/(7) or -(4)/(7)`

4. x = 9

To solve this problem you first need to find the unit rate and equal it to
`(x)/(112.50)`.

To find teh unit rate divide 50/4 and 4/4 to get
`(1)/(12.5) = (x)/(112.50)\\\\112.50 * (1)/(12.5) = 112.50* (x)/(112.50)\\\\9 = x`

5. p = 50 or B

To solve you add 42 to both sides. Doing this gives you 50 or b.

`-42+p=8\\\\42+-42+p=8+42\\\\0+p=50\\\\p = 50`

6. =

Covert 7/18 into a decimal and compare.

`(7)/(18) = 0.3888\\\\`

Then you have to round up so your answer is =