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3 years ago

Answer right and get branly this took me 3 times to doo

Mathematics

1 answer:

Alexxx [7]3 years ago

8 0

1. 50 degree angle I believe

2. 150 degree angle

3. 45 degree angle

Sorry if this doesn't help but, with no context about the answers they have given you I can't fully help. Try using a protractor like this down below.

Have a good day!

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Pls awnser this I need it

Lisa [10]

Answer:

-2k + 6

hope its right

-2k - (-5) + 1

You should always switch the signs to their opposites if you're mutiplying a negative such as the - (-5) Hope I make sense

-2k + 5 + 1

-2k + 6

4 0

2 years ago

Thank you! WIll mark brainliest.

adoni [48]

Answer:

B.) David should pull his goalie

Step-by-step explanation:

3 0

2 years ago

Suppose you walk down a school hallway at a rate of 5 ft/s, and you reach your destination in 20 seconds. How do you write a fun

8090 [49]

Answer:

Step-by-step explanation:

Let's write a equation.

5 ft = 20 seconds

(five feet is reachable in 20 seconds)

Divide both sides by 5.

5/5=1

20/5=4

1 ft = 4 seconds

Let's say the destination is d and f is foot.

d = 4f

7 0

3 years ago

Read 2 more answers

Radioactive Waste The rate at which radioactive waste is entering the atmosphere at time t is decreasing and is given by Pe^-kt,

Dmitry_Shevchenko [17]

Answer:

$\displaystyle{\int^{\infty}_0 {50e^{-0.04t}}\, dt}=1250$

Step-by-step explanation:

Given:

$T =\displaystyle{\int^{\infty}_0 {Pe^{-kt}} \, dt}$

where,

T = total amount of waste

P = 50, the initial rate

k = 0.04

t = time

$T =\displaystyle{\int^{\infty}_0 {50e^{-0.04t}} \, dt}$

now we need to solve this integral!

$T =\displaystyle{50\int^{\infty}_0 {e^{-0.04t}} \, dt}$

$T = \left|50\left(\dfrac{e^{-0.04t}}{-0.04}\right)\right|^{\infty}_0$

$T = \left|-1250e^{-0.04t}\right|^{\infty}_0$

$T = (-1250e^{-0.04(\infty)})-(-1250e^{-0.04(0)})$

when any number has a power of negative infinity it is 0. because: $a^-{\infty} = \dfrac{1}{a^{\infty}} = \dfrac{1}{\infty} = 0$ , like something being divided by a very large number!

$T = (-1250(0))-(-1250e^0)$

$T = 1250$

this is the total amount of waste

6 0

3 years ago

Does anyone know what irrational numbers are and if so can you explain it to me???

Romashka [77]

An irrational number cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal. <u>Instead, the numbers in the decimal would go on forever, without repeating. Ex) .7583947262......... It doesn't repeat and goes on forever</u>

3 0

3 years ago