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4 years ago

7 and 14 and 49 lcm for the mathematics

Mathematics

1 answer:

Deffense [45]4 years ago

8 0

The answer would be 98

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Michelle is interested in knowing how often girls in her class at school use their cell phones to instant message their friends.

pantera1 [17]

Answer:

the options for the answer are

Step-by-step explanation:

A. Give the survey to the first fifty girls on a list of all the students in her class

B. Post her survey on the Internet and ask only girls to respond

C. Write the name of each girl in her class on a card and then draw 10 cards from the hat

D. Identify which homeroom each girl in her class is in and then choosing a sample from each homeroom based on the number of girl in the homeroom

3 0

3 years ago

What is 4 times 5 times 10

algol [13]

Answer:

200

Step-by-step explanation:

4x5+20 20x10=200

Have a wonderful day!

3 0

3 years ago

Read 2 more answers

Please help me. Please.

antiseptic1488 [7]

8,3 is QI
9,-2 is QIV
-3.5,-6 is QIII

7 0

4 years ago

A 1,200g block of phosphorus-32, which has a half life of 14.3 days, is stored for 100.1 days. At the end of this period, how mu

Valentin [98]

Answer:

The amount of phosphorus-32 left after 100.1 days is 9.3 g.

Step-by-step explanation:

Given:

Initial amount of Phosphorus-32 is, $N_0=1200\ g$

Time period of decay is, $t=100.1\ days$

Half life of the block is, $t_{1/2}=14.3\ days$

Now, final amount left is, $N=?$

We know that, the decay equation for a radioactive material is given as:

$N=N_0e^{-kt}\\k\to decay\ constant$

The value of the decay constant is given as:

$k=\frac{\ln 2}{t_{1/2}}\\\\k=\frac{0.693}{14.3}=0.0485$

Now, plug in all the given values and calculate 'N'. This gives,

$N=(1200)e^{(-0.0485\times 100.1)}\\\\N=9.349\approx 9.3\ g$

Therefore, the amount of phosphorus-32 left after 100.1 days is 9.3 g

5 0

3 years ago

Graph the function f(x) = -2/3x +2

lara31 [8.8K]

Starting from the y-intercept of $\displaystyle [0, 2],$ you do $\displaystyle \frac{rise}{run}$ by either moving two blocks north over three blocks west or two blocks south over three blocks east [west and south are negatives].

I am joyous to assist you anytime.

5 0

4 years ago