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3 years ago

13

50 points for this question if you answer them all

2 answers:

Jet001 [13]3 years ago

8 0

Answer:

Step-by-step explanation:

dalvyx [7]3 years ago

5 0

Answer: it only say 25 why lie :(

Step-by-step explanation:

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Plz help me with this

9966 [12]

Answer: c) y = ln(5x) - 2

<u>Step-by-step explanation:</u>

$y=\dfrac{1}{5}e^{x+2}\\\\\text{Swap the x's and y's. Then solve for y:}\\\\x=\dfrac{1}{5}e^{y+2}\\\\\\\text{Multiply both sides by 5:}\\5x=e^{y+2}\\\\\\\text{Apply ln to both sides:}\\ln(5x)=ln\ e^{y+2}\\\\\text{Simplify:}\\ln(5x)=y+2\\\\\\\text{Subtract 2 from both sides:}\\ln(5x)-2=y$

8 0

3 years ago

Help! A glass of hot cider is 105°C at the time t = 0. It is surrounded by air at a constant temperature of 25°C . If stirred, i

julia-pushkina [17]

It takes 2.45 seconds for the temperature of the glass of hot cider to be 94°C

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

The temperature of the glass cider (C) at time t is given by:

$C(t)=25+80(1.062)^t\\\\When\ C=94^oC,hence:\\\\94=25+80(1.062)^{-t}\\\\t=2.45\ s$

It takes 2.45 seconds for the temperature of the glass of hot cider to be 94°C

Find out more on equation at: brainly.com/question/2972832

#SPJ1

8 0

2 years ago

Is the triangle with side lengths of 18cm, 24cm and 30 cm a right triangle ?

kumpel [21]

If a, b and c are the lengths of a right triangle and c is the longest side, then:

$a^2+b^2=c^2$

We have a = 18cm, b = 24cm and c = 30cm. Substitute and check:

$L_s=18^2+24^2=324+576=900\\\\R_s=30^2=900\\\\L_s=R_s$

<h3>Answer: It's the right triangle.</h3>

6 0

4 years ago

I'm not really understanding how to set this up

____ [38]

Answer: x = 21; y = 29.5

because 2y° and 59° are 2 opposing angles ⇒ 2y° = 59° ⇔ y = 29.5°

we also have: (3x - 4)° = 59° ( because of 2 parallel lines)

⇔ 3x = 59 + 4 = 63

⇔ x = 63/3 = 21

Step-by-step explanation:

4 0

3 years ago

5 red marbles, 6 white marbles, 5 blue marbles. Draw 2 marbles, 1 at a time, without replacement. Find P(red and blue)

galben [10]

10/16 are blue and red marbles, simplifying to 5/8

6 0

3 years ago