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Maslowich
3 years ago
6

I need to know the answer ASAP

Mathematics
1 answer:
gayaneshka [121]3 years ago
8 0
Q1) 20 minutes past 8

Q2) Four O’clock
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The work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below:
iogann1982 [59]

Answer:

Step 2: 4(2) + 4(3x)

Step-by-step explanation:

By definition, the area of a rectangle is given by:

Area = Length × Width

In this case, we know that:

Area = 8 + 12x

Width = 4

Therefore:

Step 1: 8 + 12x

Step 2: 4(2) + (4)(3x)

Step 3: 4(2 + 3x)

Therefore, the dimensions of the rectangle are 4 and 2 + 3x.

The mistake was made in STEP 2. Instead of 4(2) + 4(x2) it should be  4(2) + 4(3x). Which is the second option.

5 0
3 years ago
Evaluate i^31 please help
Nadya [2.5K]

ANSWER

{i}^{31}  =  - i

EXPLANATION

We want to evaluate

{i}^{31}

Use indices to rewrite the expression as:

=  {i}^{30}  \times i

We know that

{i}^{2}  =  - 1

So we rewrite the expression to obtain;

=  ({ {i}^{2}) }^{15}  \times i

This gives us;

=   {( - 1) }^{15}  \times i

This simplifies to

=  - 1 \times i

=  - i

4 0
3 years ago
How to solve (x-10)(x + 10)
tensa zangetsu [6.8K]

Answer:

Multiplying/simplifying, it is x^2-100(found by the FOIL method)

Step-by-step explanation:

multiply the commons factors x times x is x squared

-10 times 10 is -100. Negative times positive is negative.

6 0
3 years ago
Please help me with this problem!): (#5)
astra-53 [7]

5a.

18/9 = 12/x

18x = 12(9)...cross multiply

18x = 108

x=108/18

x=6



6 0
3 years ago
Oceanside Bike rental shop charges 11 dollars plus 8 dollars an hour for renting a bike Tom paid 51 dollars to rent a bike how m
Vlad1618 [11]

he paid for 5 hours take

51.00-11.00 = 40.00 left

8/40= 5

so he paid for 5 hours

5 0
3 years ago
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