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3 years ago

Evaluate the following expression when r= 3 and t = 3. (2 + r) - 11

Mathematics

2 answers:

vitfil [10]3 years ago

4 0

Answer:

-6

Step-by-step explanation:

substitute

(2 + 3) -11

5 - 11

-6

marissa [1.9K]3 years ago

4 0

Answer:

The answer is -6

Step-by-step explanation:

First, plug in the numbers into the original equation - (2+(3))-11

Then, simplify. (5)-11

Simplify one more time. -6

(I dont see anywhere to use the (t) in your equation)

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enter your answer and show all the steps that you use to solve this problem in the space provided. if x+3/3 = y+2/2, then x/3 =

tatuchka [14]

Answer: y/2

Step-by-step explanation:

Since the x would equal to 3’s and the y equals to 2’s then it would basically be simplified to y/2

3 0

4 years ago

Open parenthesizes t to the ninth power close parenthesizes to the negative eighth power

shtirl [24]

That is (t^9)^-8
= t^(9*-8)
= t^-72 or 1 / t^72

8 0

4 years ago

You are knitting a hat, and you want it to have 2 different colors from the 3 color choices of red, black, and blue. You randoml

Ludmilka [50]

Answer:

$\frac{1}{6}$

Step-by-step explanation:

Given: Three yarn colors are red, black, and blue

To find: probability that the first color is blue and the second color is red

Solution:

Probability is the chance of occurrence of some event.

Probability = number of favourable outcomes/Total number of outcomes

Probability that the first color is blue = $\frac{1}{3}$

probability that the second color is red if the first color is blue = $\frac{1}{2}$

So,

probability that the first color is blue and the second color is red = $\frac{1}{3}(\frac{1}{2})=\frac{1}{6}$

7 0

3 years ago

A regular pyramid has a base that is an equilateral triangle with sides 16 inches long. Is it possible to determine the surface

LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

you need to know either the height h, of the triangular figure or one of the slanted sides to get the surface area.

3 0

4 years ago

Airplane X left the airport, flying at a rate of 400 miles per hour. Airplane Y left 2 hours later, flying at a rate of 450 mile

sergij07 [2.7K]

Answer: i think it will take 48 hours

Step-by-step explanation:

here's how to get 48 so basically 450-400-2= 48

now if you end up doing 400 - 450 then you will get -50 if you do 400-450-2 you will get a -52 <u><em>so you want to make sure you do the biggest number first and then do the smaller numbers to get 48</em></u> like 450 - 400 - 2 and then you will have 48

i hope this helps!

5 0

2 years ago