Complete Question
The complete question is shown on the first uploaded image
Answer:
The score of the student is x = 779.42
Step-by-step explanation:
Generally we can mathematically represent the z-score as

Here x is the score of the student
substituting 1045.7 for the Mean, 221.9 for the stDev and -1.2 for z we have

=> 
=> x = -266.28 + 1045.7
=> x = 779.42
Answer:




Step-by-step explanation:
Required
Match each expression to their simplified form
1.

Simplify the expression in bracket by using the following law of indices;

The expression becomes



Split the fraction in the bracket

Simplify the fraction by using the following law of indices;

The expression becomes

Further simplify the expression in bracket by using the following law of indices;

The expression becomes



Hence,

2.

Simplify the expression in bracket by using the following law of indices;

The expression becomes


Further simplify the expression in bracket by using the following law of indices;

The expression becomes


Hence,

3.

Simplify the numerator as thus:


Simplify the denominator as thus:

Simplify the expression in bracket by using the following law of indices;

The expression becomes





Hence,

4.

Simplify the expression in bracket by using the following law of indices;

The expression becomes





Hence

Answer:
3 is the x intercept
Step-by-step explanation:
Answer:

From the figure we can see that,
&
are vertically opposite angles.
⎆ <u>Vertically opposite angles are equal to each other.</u>
<u>____________________</u>
So, equation ⇻ 
____________________
Value of x will be :-

____________________
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