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2 years ago

Can someone help me please will mark them brainlist

Mathematics

2 answers:

-Dominant- [34]2 years ago

8 0

I think theanswer is D because if you subract every number that is given in the question it does not equal to the number before it

kifflom [539]2 years ago

3 0

The answer here Im sure it’s C(15)

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The Magic Carpet charges $90 for installation and $9 per square yard of carpeting. If the total cost to carpet an office is $810

dimaraw [331]

Answer:

<h2>11.11 square yard </h2>

Step-by-step explanation:

Step one:

given data

charges=$90

installation=$9 per square yard

total cost of installation= $810

let x represents the number of square feet

Step two:

The expression for the installation cost is given as

810=9x+90------------1

solve for x, collect like terms

810-90=9x

720=9x

divide both sides by 9 we have

x=720/9

x=11.11 square yard

4 0

2 years ago

Which is closest to the measure of the marked angle in the shape?

GaryK [48]

Out of the 3 choices, I’d say it’s C.

180 degrees because 180 degrees means a straight line and it’s not close to 90, a right angle. It seems like a closer angle to a straight line.

4 0

2 years ago

PlZ HELP Goddessboi Will give brainliest!!!!!! THX have a great day!

IRISSAK [1]

Answer:

the answer would be D.

Step-by-step explanation:

while the x goes up by one, the y goes down by three

7 0

2 years ago

Read 2 more answers

Can the distributive property be used to rewrite

Harman [31]

Answer:

I think No

Step-by-step explanation:

6 0

3 years ago

Situation:A researcher in North America discoversa fossile that contains 65% of its originalamount of C-14..-ktN=NoeNo inital am

zheka24 [161]

SOLUTION

We have been given the equation of the decay as

$\begin{gathered} N=N_0e^{-kt} \\ where\text{ } \\ N_0=initial\text{ amount of C-14 at time t} \\ N=amount\text{ of C-14 at time t = 65\% of N}_0=0.65N_0 \\ k=0.0001 \\ t=time\text{ in years = ?} \end{gathered}$

So we are looking for the time

Plugging the values into the equation, we have

$\begin{gathered} N=N_0e^{-kt} \\ 0.65N_0=N_0e^{-0.0001t} \\ e^{-0.0001t}=\frac{0.65N_0}{N_0} \\ e^{-0.0001t}=0.65 \end{gathered}$

Taking Ln of both sides, we have

$\begin{gathered} ln(e^{-0.000t})=ln(0.65) \\ -0.0001t=ln(0.65) \\ t=\frac{ln(0.65)}{-0.0001} \\ t=4307.82916 \end{gathered}$

Hence the answer is 4308 to the nearest year

8 0

4 months ago