Ricardo can type 39 words per minute. Estimate the number of words he can type in 18 minutes. 400 or 600 or 300 or 800

Answer:

X=19

Step-by-step explanation:

2x + 10 = -28

     -10     -10         Subtract 10 from both sides

divide both sides by 2

That gives you

X= 19

Answer:

The answer is B: I  IV II  III

Step-by-step explanation:

Just did it

The sequence for the derivation of tangent sum identity is option I --> IV --> II --> III.

The trigonometric identities is the relationship between the different trigonometric ratios. These trigonometric identities are the basic formulae that are true for all the values of the reference angle.

For the given situation,

The derivation for the tangent sum identity is given in the table below.

The derivation follows the steps,

[tex]\frac{sin(x+y)}{cos(x+y)}[/tex]

we know that, [tex]sin(x+y) = sinx cosy + cosx siny[/tex] ,

[tex]cos(x+y)=cosxcoxy - sinxsiny[/tex] and

[tex]\frac{sinx}{cosx}=tanx[/tex]

⇒ [tex]\frac{sinxcosy + cosxsiny}{cosxcosy-sinxsiny}[/tex]

Divide each term by [tex]cosxcosy[/tex]

⇒ [tex]\frac{\frac{sinxcosy}{cosxcosy} +\frac{cosxsiny }{cosxcosy} }{\frac{cosxcosy}{cosxcosy} -\frac{sinxsiny}{cosxcosy} }[/tex]

⇒ [tex]\frac{tanx+tany}{1-tanxtany}[/tex]

Hence we can conclude that the derivation of tangent sum identity is option I --> IV --> II --> III.

Learn more about trigonometric identity here

https://brainly.com/question/15858604

#SPJ2

3/6 because absolute value of any number has to be positive and you have to subtract the 2 answers to find the distance

Answer:

The answer is B.

Reasoning:

A. 5 + (-17) = -12✔

B. -17 - 5 = -22 ✖

C. -17 + 5 = -12 ✔

D. -12 ✔

Answer:

B: -17+5

Step- by- step explanation

Answer:

b

Step-by-step explanation:

400*.08

32.00

Answer:

its B

Step-by-step explanation:

Answer:

so here we are told that angle CED is 39 degrees and in this diagram we have three angles the first one is Angle CED the next one is angle CEL and the last one is angle LED so angle c e l + angle LED is equals to angle c e d so in this case 3 x - 6 + x + 25 should be equal to 39 degrees collect the like terms 3 x + x + 25 - 6 is equals to 39 degrees 4X + 19 is equals to 39 cross the 19 over the equals sign that you have 4 x is equals to 39 + 19 4 x is equals to 68 divide both sides by 4 and x is equals to 17 then substitute replace where there is x with seventeen so in this case angle c e l will be 3 * 17 -6 we are multiplying 3 by 17 because it was 3 x and we got the value of x to be 17 so 3 * 17 is 51 -6 is 45 so angle CEL is 45 degrees you can do the same with the other angle that is angle LED and you get x to be 42

Answer:

594 > -11n

Step-by-step explanation:

the answer is c lol

Answer:

The answer is C

Proof:

Step-by-step explanation:

Answer:

520 words

Step-by-step explanation:

Do 130 words divided by 5 minutes to get 26 words per minute.

Then you do 26 times 20 to get the answer of 520

hope this helps!!

Answer:

520 words.

Step-by-step explanation:

We can multiply the 5 minutes by 4 to find 20, so also multiply 130 by 4, which would result in 520.

Answer:

41.3111111111

Step-by-step explanation:

1859/45 = 41.3111111111

Answer:

41.31 with the 1 repeating.

Step-by-step explanation:

Answer:

Ok so the fraction is 3/4

I'm letting google answer the other question though.

Step-by-step explanation:

Answer:

no idea

Step-by-step explanation:

Answer:

5 dollars

Step-by-step explanation:

an ice cream is 3 dollars and 1 ounce of toppings is 50 cents 0.5 dollars times 4 equals 2 dollars. so 3+2 equals 5

Answer:

$5.00 I believe.

Step-by-step explanation:

Answer:

[tex]-1/13\text{ tub per hour}[/tex]

Step-by-step explanation:

First, let's find how much of the tub was used within the time.

We know that the tub was 2/3 full was Jenna started.

And it was only 1/6 full when Jenna ended.

Therefore, to find the amount used, we can subtract 1/6 from 2/3. So:

[tex]u=\frac{2}{3}-\frac{1}{6}[/tex]

Make a common denominator. Change 2/3 to 4/6 by multiplying both layers by 2. So:

[tex]u=\frac{4}{6}-\frac{1}{6}[/tex]

Subtract and reduce:

[tex]u=\frac{3}{6}=\frac{1}{2}[/tex]

Therefore, 1/2 of the tub was used after 6 1/2 hours.

To find the average hourly change, we will put the amount used over the amount of hours. 6 and 1/2 hours is the same as 13/2 hours. Therefore, the hourly change will be:

[tex]c=\frac{\frac{1}{2}}{\frac{13}{2}}[/tex]

Remember when dividing fractions, we:

1) Flip the divisor (the second number).

2) Change the division sign to a multiplication sign.

3) Multiply.

So:

[tex]c=\frac{1}{2}\div\frac{13}{2}\\\Rightarrow c=\frac{1}{2}\times \frac{2}{13}[/tex]

Multiply straight across and reduce:

[tex]c=\frac{2}{26}=\frac{1}{13}[/tex]

However, since we are using up the tub, our rate will be negative. Therefore:

[tex]c=-\frac{1}{13}[/tex]

Therefore, the average hourly rate was -1/13 tub per hour.

This means that after each hour, 1/13 of the tub will be used up.

Edit: Corrected Wrong Answer

Answer: -1/13 of a tub per hour

Step 1: Subtract.

2/3 - 1/6 = ?

Step 2: Find the common denominator.

4/6 - 1/6 = 3/6.

Step 3: Simplify the fraction.

3/6 = 1/2

Step 4: Put 1/2 over 13/2.

1/2 over 13/2

Step 5: Flip divisor around. Then divide.

1/2 ÷ 13/2

Step 6: Multiply.

1/2 × 2/13 = 2/26.

2/26 reduced = 1/13.

Since it was used, now it is -1/13

Answer = -1/13 of a tub per hour

Answer:

True

Step-by-step explanation:

The given statement is true.

Area of a rectangle is length times width.

A rectangle with the side length of 4 and 5 inches would have an area of 20 square inches.

[tex]A=l*w\\\\A=4*5\\\\A=20[/tex]

Hope this helps.

Answer:

False

Step-by-step explanation:

There can be two sets of side lengths 4, 5 inches and 2, 10 inches.

Answer:

What is the question?

Step-by-step explanation: .

Answer:

WHATS THE QUESTION

Step-by-step explanation:

Answer:

positive 40, just regular 40

Step-by-step explanation:

Positives and negatives are opposites

Answer:

A postulate is a statement that is assumed to be true based on basic geometric principles. A theorem is a mathematical statement that can and must be proven to be true.

Step-by-step explanation:

www.ck12.org

Answer:

A thorem is true and can be proven true vs a postulate is guessed true without any evidence.

Step-by-step explanation:

A theorem is a group of statements that are used to prove something else, whereas a postulate is a statement that is not proved but is true through reasoning.

Answer:

upper control limit  = 6.058

lower control limit =  0.442

Step-by-step explanation:

Given that:

The numbers of sample n Mogul executives took = 8 Eagletrons at a time.

They find out that the average  sample mean is 88.50 mph and;

the average range [tex]\overline r[/tex] is 3.25 mph.

From the tables:

[tex]\text {Table values for n = 8 } \left \{ {{D_4=1.864} \atop {D_3=0.136}} \right.[/tex]

Control Limit = [tex]\overline r[/tex]  = 3.25

Therefore; the upper control limit and the lower control limit can be computed as follows:

upper control limit  = [tex]D_4 \overline r[/tex]

upper control limit  = 1.864(3.25)

upper control limit  = 6.058

lower control limit = [tex]D_3 \overline r[/tex]

lower control limit =  0.136(3.25)

lower control limit =  0.442

Answer:

192

Step-by-step explanation:

16 × LCM = 3072

LCM = 3072 ÷ 16

LCM = 192

Answer:

irrational numbers

Step-by-step explanation:

8.

sqrt(13) is not a whole number, a natural number, an integer, or a rational number.

Answer: irrational numbers

Answer: both b and c equal 77 degrees

Step-by-step explanation:

103+103=206

360-206=154

154/2=77

Answer:

6 times

Step-by-step explanation:

If Andrea jumps 5 times every 45 minutes, she will jump 1 time every 9 minutes. 54 divided by 9=6 times. Hope it helps!

Answer:

B

Step-by-step explanation:

Same as last. multiple 8 into the entire equation.

Answer:

-80x+28y-56

4(-20x+7y-14)

Step-by-step explanation:

Answer:

0.04705882352

Step-by-step explanation:

Yeah, I don't really have an explanation, sorry. I guess you just turn them both into decimals and multiply afterwards.

2/34 x 4/5 = 4/85, or 0.04705882...

i believe it is both but im not 100%

Answer:

7.53 x 10²

Step-by-step explanation:

10² two time the 10 is 100

Answer:

Uuuuuuuh. What is n? There's no n in your question.

Step-by-step explanation:

Also that scientific notation equation there is false. It would be 7.53x10 to the 10th power.

Answer:

x=−3

Step-by-step explanation?

i did the math