HELP ME PLEASE I NEED TO FINISH ALGEBRA TODAY ITS URGENT I BEG YOU I DONT HAVE TIME
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Answers

Answer 1
Answer: #66 Dimensions of matrix: The dimensions of a matrix are
[number of rows (across) x number of columns (up and down)]
There is 1 row and 4 columns, hence the dimensions of [1 x 4]

#71: use factor/label conversion method.
480 minutes    1 hour            480 hours        8 hours
                     * --------------  = --------------  = 
                       60 minutes      60 minutes

#72: common difference is how you get from one number to the next in the sequence. So from 42 to 38, you subtract 4, and the pattern is subtract 4 for the whole sequence. So the common difference is -4

#38: The midpoint is the middle of the two coordinates, so imagine when used to find mean by drawing a number line like 1 to 10 and the mean would be 5. What did you do? You added 1 and 10 and divided by 2.
You can use the same method for finding midpoints on the coordinate plane.
The formula for midpoint is (x1+x2),(y1+y2). So it's (5 + 2) , (8 + 7) which equals (7, 15).

#35: This is the same 3* x^(9*1/5) = 3*x^9/5
Remember square root of a number is the same as that number to the 1/2, and the same with all other roots. The fifth root of x is the same as x to the power of 1/5

#36: This is the same as 36*( x^5*3/2 * y^3*3/2), since you can put the power to each of the numbers almost like the distributive property.
= 36 * (x^15/2 * y^9/2)

Well #20 is extremely easy. The solutions are anything that is shaded in the blue

The rightmost question is the same thing as #20. Anything not shaded is not a solution.


#64: Just like you learned in elementary school, the median is the middle number. The middle number is 10


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2. NUMBER SENSE If 52 is 130% of a number, is the number greater or
less than 52? Explain

Answers

the number is less than 52 because 52 is 130% of it, if it were 100% they would be the same but there is an extra 30% so 52 is greater than the number and the number is less than 52

hope this helps, if it doesn't, let me know :)

sonja and jake just got married. they received $4,500 in gift money and deposited it into a savings account that pays 1.85% simple interest.How much will they have in savings after 3 years?

Answers

The total amount in savings after 3 years is $ 4749.75

Solution:

Sonia and Jake received $4,500 in gift money and deposited it into a savings account that pays 1.85% simple interest

To find: Amount after 3 years

The total amount after 3 years is given as:

total amount = principal amount + simple interest

The simple interest is given as:

\text {simple interest }=\frac{\text { principal } * \text { number of years } * \text {rate of interest }}{100}

Here principal amount = $ 4500

Rate of Interest = 1.85%

Number of years = 3 years

Substituting the above values in formula we get,

\text { simple interest }=(4500 * 1.85 * 3)/(100)

\text {simple interest }=45 * 1.85 * 3=249.75

Thus simple interest = $ 249.75

total amount = principal amount + simple interest

total amount = 4500 + 249.75

total amount = $ 4749.75

Thus the total amount after 3 years is $ 4749.75

Is y=x squared +2 a linear function

Answers

No, this would not be a linear function. Being linear means it creates a straight line, but this function has an x squared. Anytime x^2 is in a function, the graph is a u shape, called a parabola. A simple linear function is y=x :D
y=x^2 + 2 is not a linear function. This is because the x has power. If it was  only x then it would be linear function. So x^2 +2 is quadratic function. However if it was x^3, it would be quadratic; it would be cubic. Therefore fore only x squared is quadratic. 

Jennifer has a total of 8/9 square yard of fabric to use for making handkerchief. Each handkerchief requires 1/6 square yard of fabric. Part A How many complete scarves can she make with the material she has? Part B How much of a scarf, if any, is left over?

Answers

8/9 = 48/54
1/6 = 9 /54

Each handkerchief is 9/54. 5 full scarves would be 45/54 leaving 3/54. 1/3 of a complete scarf is left

How many 6 digit number combinations are there?

Answers

The smallest 6-digit number is  100,000 .

The largest 6-digit number is  999,999 .

If you count from the smallest one to the largest one, you'll name
every possible one.

But that's exactly the same thing as counting from 1 to 999,999 except
skipping the first 99,999 because they don't have enough digits.

So you're left with (999,999 minus 99,999) = 900,000 numbers remaining
999999 × 2 if you want to include the negatives

The wheel of a bike has a diameter of 26 inches. What is the circumference of the wheel?

Answers

Answer:

the circumference of the wheel is 81.64 inches.

Step-by-step explanation:

Circumference of a circle is given by:

C = \pi d

where

C is the circumference of a circl

d is the diameter of a circle.

As per the given statement:

The wheel of a bike has a diameter of 26 inches

⇒d = 26 inches.

We have to find the circumference of the wheel.

\text{circumference of the wheel} = \pi \cdot 26 inches

Use value of \pi = 3.14

then;

\text{circumference of the wheel} = 3.14 \cdot 26 =81.64 inches.

Therefore, the circumference of the wheel is 81.64 inches.

c = d * \pi
so 26 * 3.14 = c
c = 81.64
circumference is 81.64 inches.
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