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Answer:

Step-by-step explanation:

I assume that you are wanting an algebraic expression written. if not, please let me know!

When we divide numbers by each other, we write them as a fraction, the number being divided over the number it's divided by. in this case, the number we're dividing is 28, and the number we're dividing it by an unknown factor s.

Answer:

The slope is 3/2

Answer:

2,800

Step-by-step explanation:

Answer:

2,800

Step-by-step explanation:

95 rounded up is 100

so its 2,800

Answer:

Angles 1 and 2 are both 60, and angle 3 is 120

Step-by-step explanation:

Answer:

The total if a triangle is 180, for a right angle so 180 subtract the number u have and 90 plus the number u have and the number u got

There is not enough information to find the value of 12x and 9y.

Answer: y= 2x + 2

Step-by-step explanation:

Answer:

to graph this all you need to do is plot the y-intercerpt which is 9 in this case. then use the slop (-2) which means go two down from the y intercept and one to the right. all you need to do then is connect the points with a line.

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

A graphing calculator produces a graph very nicely.

__

Setting x=0, you have the equation y=9, so you know the y-intercept.

Setting y=0, you have the equation 2x=9, so you know the x-intercept is 9/2 = 4.5. It can be easier to set y=1 to find the corresponding point x=(9-1)/2 = 4.

Through the points (0, 9) and (4, 1), you can draw the line representing the relation.

Answer:  Thank you for the points!!:)

Step-by-step explanation:

btw Can i have brainliest?

Answer:

n = 195

Step-by-step explanation:

What sample size is necessary such that a 98% confidence interval for the mean, using σ = 3, has a width of pm±0.5?

We solve using Margin of error formula

= z × Standard deviation/√n

Margin of error = ± 0.5

Standard deviation = 3

n = ??

z = 2.326

Hence,

±0.5 = 2.326 × 3/√n

Cross Multiply

±0.5 × √n = 6.978

√n = 6.978/±0.5

√n = ±13.956

Square both sides

n = (±13.956)²

n = 194.769936

Approximately = 195 samples

Answer:The scale factor= 1 : 41.14

Step-by-step explanation:

I did research on it

In the given triangle, the value of x is 12.

A triangle is a geometric figure with three edges, three angles and three vertices. It is a basic figure in geometry.

The sum of the all three angles of a triangle is always 180°

In the given Triangle ABC,

AB= AC,

∠A = 34° and ∠C = (8x-23)°

Since, two sides of a triangle are equal, therefore their corresponding angle will be equal,

Implies that ∠C=∠B

The sum of all three angles of a triangle is 180°.

⇒∠A+∠B+∠C = 180°

⇒34+8x-23+8x-23 = 180

⇒16x-12=180

⇒16x=192

⇒x=12

The value of x is 12.

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Answer:

{ 1, 4, 9 , 16 , 25, 36}

Step-by-step explanation:

hope that will help you

Answer: i like hot dogs

Step-by-step explanation: real good

Answer:

C=11.3

Step-by-step explanation:

8(2)+8(2)=C(2)

8×8=64 8×8=64

64+64=128

128=C(2)

On the caculator press 2nd then x2 then add in 128.

11.31=11.3

C=11.3

Answer:

$4

Step-by-step explanation:

A 4:2 ratio is the same as a 2:1 ratio, so Ann receives double what Bob gets.

If Ann gets 8 dollars and Bob gets 4, then Ann would have $4 more than Bob, and it would follow the appropriate ratio.

Answer:

20 X 40 = 800 (split into 2 fourths) = 40

Step-by-step explanation

20 x 40 = 800;

For 2 necklaces she can split 800 into fourths.

800 - 40 = 80. (1 fourth)

80 - 40 = 40 (2 fourths)

40 - 40 = 0 (3 fourths)

She could split 800 into 2 fourths to get a number more than 0 and less then 42.

The best estimate of rounding 42 is 40. Because 40 is closer to 42.

Answer:

?

Step-by-step explanation:

Answer: it shows that myths are often based on real events. Hope it helps

Step-by-step explanation:

i took the test on the k-12 site and the was the answer cuz i got it correct.

Answer:  5/8 inch represents 1 mile

Step-by-step explanation:

to get 1, multiply 4/5 by its reciprocal, 5/4

Then multiply 1/2 by 5/4

1/2 × 5/4 = 5/8

Answer: The correct answer is 5/8

Step-by-step explanation: Answer verified as correct on test

Answer: 18 miles

explanation: set up a proportion. (2 over 1/9 = x over 1). cross multiply, 2x1=2, then divide 2/(1/9)=18.

Answer:

0.002

Step-by-step explanation:

You just move the decimal over one place. This is the same as dividing by 10. Hope this helps!

[tex]y=mx+b[/tex]

First, we find the slope.

[tex]m=\frac{y_2-y_1}{x_2-x_1} \\m=\frac{3-1}{4+6} \\m=\frac{2}{10}\\m=\frac{1}{5}[/tex]

Second, we know the slope. Substitute any ordered pairs that are given in the equation.

[tex]y=mx+b\\y=\frac{1}{5}x+b\\[/tex]

I'll use the ordered pairs (4,3) as I substitute x = 4 and y = 3.

[tex]3=\frac{1}{5}(4)+b\\3=\frac{4}{5}+b\\15=4+5b\\15-4=5b\\11=5b\\\frac{11}{5}=b[/tex]

Therefore, the equation is [tex]y=\frac{1}{5}x+\frac{11}{5}[/tex]

Answer:

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\ [/tex]

From the question we have

[tex]m = \frac{10 - 8}{ - 3 - 5} = \frac{2}{ - 8} = - \frac{2}{8} = - \frac{1}{4} \\ [/tex]

We have the final answer as

[tex] - \frac{1}{4} \\ [/tex]

Hope this helps you

Answer:

-1/4. ..................,..

Answer:

False

Step-by-step explanation:

This is all I can think of.

Multiply two matrices and obtain the identity matrix, it can be assumed the matrices are inverses of one another. so, this statement is true.

Inverse of matrix is a matrix derived from another matrix such that if you multiply the two you get a unit matrix. Square matrices with a an inverse are called non singular matrices while those without an inverse are called singular matrices (determinant is zero). Inverses and determinant are only calculated for square matrices.

Two matrices are said to be inverse of each other.

If A B = B A = I, where I is the identity matrix.

So, the matrices are inverses of one another if the product of two square matrices is the identity matrix.

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Answer:

3 miles per hour

Step-by-step explanation:

3 times 5 is 15 15 divided by 4 is 3

Josie's speed will be 15/4 miles per hour.

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

Josie walks 3/4 miles in 1/5 hour.

Now,

The distance = 3/4 miles

The time = 1/5 hour

Since, We know that;

Speed = Distance / Time

Substitute all the values, we get;

Speed = 3/4 miles / 1/5 hour

          = 3 x 5 / 4

          = 15/4 miles per hour

Thus, Josie's speed will be 15/4 miles per hour.

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