Which of these is an example of typing at an average rate of 42 words per minute?

Answer:

A.  [tex]f(n) =0.2n+4.8[/tex]

B. The y intercept is 4.8

Step-by-step explanation:

Given

[tex]a_n= 5 + 0.2(n-1)[/tex]

Solving (a): Write as a function.

To do this, we simply substitute f(n) for [tex]a_n[/tex]

[tex]a_n= 5 + 0.2(n-1)[/tex] becomes

[tex]f(n)= 5 + 0.2(n-1)[/tex]

Open Bracket

[tex]f(n) = 5 + 0.2n-0.2[/tex]

Collect Like Terms

[tex]f(n) =0.2n-0.2 + 5[/tex]

[tex]f(n) =0.2n+4.8[/tex]

B. The y intercept.

To get the y intercept, we set n to 0

i.e

[tex]f(0) =0.2 * 0+4.8[/tex]

[tex]f(0) =0+4.8[/tex]

[tex]f(0) =4.8[/tex]

Hence, the y intercept is 4.8

Answer:

1

Step-by-step explanation:

Answer:

B. 1

Step-by-step explanation:

The quotient will have 1 decimal place because one of the numbers in the calculation has one decimal place, and the answer is only allowed to be as exact as the numbers used in the equation.

To make sure the answer is correct, we can do the math:

170.8/14 = 12.2

12.2 only has one decimal place, so answer choice B is correct.

Hope this helps :)

Answer:

3

Step-by-step explanation:

(1/2) / (1/6)

(1/2) * (6/1) = 6/2 = 3

Answer:

1.7^3

Step-by-step explanation:

i cannot see your answer options so I hope this helps!!!!

Answer:

$22.50

Step-by-step explanation:

My bad lol, I posted the answer under the wrong thing.

Answer:

[tex]f(-1)=\frac{-1}{2}[/tex]

[tex]g(-2)=\frac{5}{32}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

[tex]f(x)=\frac{2x-1}{2x^3-8x}[/tex]

[tex]g(x)=\frac{2x-1}{2x^3+8x}[/tex]

f(-1) is x = -1

g(-2) is x = -2

Step 2: Evalaute

f(-1)

g(-2)

And we have our final answers!

Answer:

xfghzfgfrxeshixeah

Step-by-step explanation:

LG's SSL looks sl lid

Answer:

x = 9.5

x = 9 1/2

x = 19/2

All answers are the same, just different ways of denoting it.

Step-by-step explanation:

-4 + 5x - 7 = 10 + 3x - 2

Simplify both sides, by combining like terms

-4 + 5x - 7 = 10 + 3x - 2

-11 + 5x = 8 + 3x

Inverse operations

-11 + 5x = 8 + 3x

+11           +11

5x = 19 + 3x

-3x         -3x

2x = 19

/2     /2

x = 9.5

Answer:

7.22

Step-by-step explanation:

Use a calculator

Answer:

19 x 0.38 = 7.22

Step-by-step explanation:

if the number you are multiplying by is smaller than 1, it's always smaller than the beginning number.

May I have brainliest please? :)

Answer:

25000

Step-by-step explanation:

25 * 1000 = 25000

25000 milliliters

Convert 25 liters to milliliters

Answer: Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains. ... Volume is often quantified numerically using the SI derived unit, the cubic metre.

Step-by-step explanation:

SI unit: Cubic metre

Other units: Litre, fluid ounce, gallon, quart, pint, ...

In SI base units: 1 m3

Dimension: L3

Answer:

-1 and 0                              

-2/3 lies between numbers -1 and 0

Answer:

D

Step-by-step explanation:

Have a great da༼ つ ◕_◕ ༽つy!

Answer:

1 y=3x 2 y=38x 3 y=202x 4 y=2x 5 y=16x

Step-by-step explanation:

Answer:do yo use I’ll need help

Step-by-step explanation:

Answer:

$7.50

Step-by-step explanation:

Answer:

f(h)=2d+4.3

= 2 x 1.5+4.3

  h=7.3ft

Answer:

x=5

Step-by-step explanation:

Let's solve your equation step-by-step.

4x+10=30

Step 1: Subtract 10 from both sides.

4x+10−10=30−10

4x=20

Step 2: Divide both sides by 4.

4x /4 = 20/4

x=5

The value of x that satisfies the equation 4x + 10 = 30 is x = 5.

Here,

To solve the equation 4x + 10 = 30,

we want to find the value of x that makes the equation true.

Step 1: Isolate the variable term.

First, we want to get rid of the constant term 10 on the left side of the equation.

We can do this by subtracting 10 from both sides of the equation:

4x + 10 - 10 = 30 - 10

Simplifying:

4x = 20

Step 2: Solve for x.

Next, we want to isolate the variable x on one side of the equation.

Since 4 is multiplied by x, we can undo this by dividing both sides of the equation by 4:

4x / 4 = 20 / 4

Simplifying:

x = 5

Step 3: Check the solution.

To verify that our solution is correct, we can substitute the value of x back into the original equation:

4x + 10 = 30

Substitute x = 5:

4(5) + 10 = 30

Simplifying:

20 + 10 = 30

30 = 30

Since both sides are equal, our solution x = 5 is correct.

Therefore, the value of x that satisfies the equation 4x + 10 = 30 is x = 5.

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Answer:

The value of cos Ф is ± [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

There are important rules for sin Ф and cos Ф

∵ sin Ф = [tex]\frac{\sqrt{3}}{2}[/tex]

∴ sin²Ф = [tex](\frac{\sqrt{3}}{2})^{2}[/tex]

∴ sin²Ф = [tex]\frac{3}{4}[/tex]

→ By using the third rule above

∵ cos²Ф = 1 - sin²Ф

∴ cos²Ф = 1 - [tex]\frac{3}{4}[/tex]

∴ cos²Ф = [tex]\frac{1}{4}[/tex]

→ Take square root for both sides

∴ cos Ф = ± [tex]\frac{1}{2}[/tex]

∴ The value of cos Ф is ± [tex]\frac{1}{2}[/tex]

Answer:

you prove her wrong with dem facts!

Answer:

$3.16

Step-by-step explanation:

6% x $52.60 = $3.16 (2dp)

Topic: Percentage

If you like to venture further, please give my Instagram page a follow (learntionary). I'll be constantly posting math tips and notes! Thanks!

Answer:

BMI is 24.9

Step-by-step explanation:

In order to calculate the student's BMI we first need to convert her weight into kilograms and her height into meters. We know that there are 39.37 inches in a meter and every foot has 12 inches. Therefore, since the student is 5ft 4 inches, this means she is 64inches tall. Now we can divide this by 39.37 to find her height in meters

64 / 39.37 = 1.6256 meters

Now we need to calculate her weight in kilograms. Since there are 2.20462 pounds in 1 kilogram, we simply divide her weight by 2.20462.

145 / 2.20462 = 65.7709 kilograms

Now we use the BMI formula to solve for the students BMI

BMI = [tex]\frac{mass}{height^{2} }[/tex]

BMI = [tex]\frac{65.7709}{1.6256^{2} }[/tex]

BMI = [tex]\frac{65.7709}{2.6425}[/tex]

BMI = 24.88

Therefore we can see that the students BMI is 24.9

Answer:

2

Step-by-step explanation:

Answer:

Third option is the correct answer

Step-by-step explanation:

[tex] f(x) = 2x^2 - 4x[/tex] is the correct answer.

Answer:

The coordinates of point that divides the given line in ratio 1:2 are (-1,-6)

Step-by-step explanation:

Given that:

(x1,y1) = (-6,-10)

(x2,y2) = (9,2)

If a point (x,y) divides a line into ratio m:n, the coordinates can be found out by the formula

[tex](x,y) = (\frac{nx_1+mx_2}{m+n} , \frac{ny_1+my_2}{m+n})[/tex]

As given ratio is: 1:2

so m= 1

n = 2

Putting the values in the formula we get

[tex]= (\frac{(2)(-6)+(1)(9)}{1+2} , \frac{(2)(-10)+(1)(2)}{1+2})\\=(\frac{-12+9}{3} , \frac{-20+2}{3})\\=(\frac{-3}{3} , \frac{-18}{3})\\=(-1,-6)[/tex]

Hence,

The coordinates of point that divides the given line in ratio 1:2 are (-1,-6)

Answer:

A. HL

B. SAS

C. SSS

May I have brainliest please? :)

The triangles can be proved congruent by HL, SSS, and SAS congruence, the correct option is A, B, and C.

A right triangle is a triangle in which the measure of one of the angles is 90 degrees.

The triangle given is are triangles ABR and ACR

They share a common side AR

∠ABR = ∠ACR = 90 degree.

AB ≅ AC

BR ≅ CR

The triangles can be proved congruent by,

HL- Height Length congruence for a right-angle triangle

SSS -  All the sides are equal and,

SAS - The two sides and the included angle is equal.

Your question seems incomplete, the complete question is attached with the answer.

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Answer:

1.[tex]y=-6x+6, y=\frac{6}{5} x+\frac{18}{5}, y=\frac{6}{11} x+\frac{42}{11}[/tex]

2.[tex]y=-\frac{1}{2} x+2\frac{1}{4} , x=2, y=-\frac{7}{6}x+\frac{43}{12}[/tex]

Step-by-step explanation:

A(−3, 0), B(0, 6), and C(4, 6)

using the midpoint formula: [tex](\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})[/tex] we can find all of their midpoint which is necessary to complete question 1 and 2

Mid AB=(-1.5, 3), Mid BC=(2, 6), Mid AC=(0.5,3)

Next, we have to find the slope of from the vertex and the midpoint of each side. We use the slope formula: [tex]\frac{y_2-y_1}{x_2-x_1}[/tex].

You would get -6, 6/5, and 6/11.

Next you substitute in the coordinates for the equation of each for example: y=-6x, you switch in the set of cords AB which is (-1.5, 3). 3=-6(-1.5)+z and find that z=6, so the equation is y=-6x+6. As for the rest, repeat the same process until you find all 3 cords. You should get an answer of [tex]y=-6x+6, y=\frac{6}{5} x+\frac{18}{5}, y=\frac{6}{11} x+\frac{42}{11}[/tex]

For question 2,

The line has to be perpendicular bisector to the midpoint, signifying that it has to split 2 angles into congruent angles and a side into half. In order to do that we need to first find the opposite reciprocal of each side's slope. Which means we need to once again use the slope formula and get the opposite reciprocal by [tex]-\frac{1}{slope}[/tex]. For all the opposite reciprocal slopes you get will be incorporated into the final formulas. That gives us the slopes of -1/2, 0 and -7/6. Then do the same process of matching cords with these incomplete equations and you can find the final equations of [tex]y=-\frac{1}{2} x+2\frac{1}{4} , x=2, y=-\frac{7}{6}x+\frac{43}{12}[/tex]

I hope that helped with your question!! :)

Also I'm an RSM student too and I didn't know how to do them before so I searched it up.

Answer:

3 1/8

Step-by-step explanation:

You can rewrite 1 1/4 as 1 2/8, so adding them you'd get 2 9/8, or 3 1/8

Answer:

it is 12 people

Step-by-step explanation:

i looked it up on Google. all you have to do is type in 25 percent of 48

Answer

3y^2\left(2y\:+\:1\right)\left(4y^2\:-\:2y\:+\:1\right)

Step-by-step-explanation

Answer:

I think the answer is b the person who answered may have worded it weird but from trying to read it it looks like b so