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patriot [66]
2 years ago
13

Can someone plz help me I don’t under stand this at alllllll

Mathematics
2 answers:
bazaltina [42]2 years ago
8 0
It should be C) 90.
Please mark me brainliest and if you want me to explain it comment and I’ll help you out a bit
olga55 [171]2 years ago
3 0

Answer:

A. 45cm²

Step-by-step explanation:

please refer to the picture I sent

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Choose a method . Then find the product 10x15
34kurt

Answer:

150

Step-by-step explanation:

15*10

Lets get rid of the 0 for now

15*1

That is 15 added to itself 0 times so it is 15

Now lets put the 0 back

and we will get

150

5 0
3 years ago
Read 2 more answers
Iodine-125 has a daily decay rate of about 1%. How many milligrams of a 500 mg sample will remain after 300 days? Round the answ
Amanda [17]
So.. in this case, the starting amount is the 500mg sample... and the rate of decay, negative rate, is 1%, and at the time, the elapsed days is 0, to t = 0, P = 400

\bf \qquad \textit{Amount for Exponential change}\\\\
A=P(1\pm r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{starting amount}\to &500\\
r=rate\to 1\%\to \frac{1}{100}\to &0.01\\
t=\textit{elapsed period}\to &300\\
\end{cases}
\\\\\\
A=500(1-0.01)^{300}
7 0
2 years ago
Read 2 more answers
6(z+9) I need help figuring this out
NNADVOKAT [17]
The answer should be 6z + 54 but I’m not completely positive.
8 0
2 years ago
Approximate the real zeros of x^4-5x^3+6x^2-x-2 to the nearest tenth. a. 0.4, c. 4, 3.4 b. , 3.4 d. -4, 3.4
levacccp [35]

Answer:

x=−0.433107,3.352224

Rounding up should be -0.4 and 3.4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which describes how to find the solution 5k >22
inysia [295]

Answer:

<h2>k > 4.4</h2>

Step-by-step explanation:

5k>22\qquad\text{divide both sides by 5}\\\\\dfrac{5k}{5}>\dfrac{22}{5}\\\\k>4\dfrac{2}{5}\to k>4.4\to k\in(4.4,\ \infty)

8 0
3 years ago
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