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andrezito [222]
3 years ago
8

It's in the picture ​

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
3 0

Answer:

it D

Step-by-step explanation:

Trust me

djrjnfnzenngfzm

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A scientist measures the initial amount of Carbon-14 in a substance to be 25 grams.
galina1969 [7]

In 386750.36 years the Carbon - 14 will be 20 g in the substance

Step-by-step explanation:

Here A = 20 g

The given equation is,

A= 25e - 0.000124t

We need to find the value of t

20 = 25e - 0.000124t

20 - 25e = - 0.000124t

25e - 20 = 0.000124t

(25e - 20 ) / 0.000124 = t

t = (25e - 20) / 0.000124

t = (65.957 - 20) / 0.000124

t = 45.957 / 0.000124

t = 386750.36 years

7 0
4 years ago
Read 2 more answers
If the gradient of the line segment joining (-3,7 ) and (4,p) is 3/5 ,find p
sesenic [268]

Answer:

a

Step-by-step explanation:

6 0
3 years ago
Pizza Paradise offers 4 types of crust, 10 toppings, and 8 kinds of cheese for the mega calzone. How many different mega calzone
Bumek [7]

Answer:

26880 ways

<em></em>

Step-by-step explanation:

Given

Crust = 4

Toppings = 10

Cheese = 8

Required

Determine the number of ways 3 toppings and 3 cheese can be selected

The number of crusts to be selected was not stated. So, I'll assume 1 crust to be selected from 4.

This can be done in ^4C_1 ways

For the toppings:

3 can be selected from 10 in ^{10}C_3 ways

For the cheeses:

3 can be selected from 8 in ^{8}C_3 ways

Total number of selection is:

Total = ^4C_1 * ^{10}C_3 * ^{8}C_3

Apply combination formula:

Total = \frac{4!}{(4-1)!1!} * \frac{10!}{(10-3)!3!} * \frac{8!}{(8-3)!3!}

Total = \frac{4!}{3!1!} * \frac{10!}{7!3!} * \frac{8!}{5!3!}

Total = \frac{4*3!}{3!*1} * \frac{10*9*8*7!}{7!*3*2*1} * \frac{8*7*6*5!}{5!*3*2*1}

Total = \frac{4}{1} * \frac{10*9*8}{3*2*1} * \frac{8*7*6}{3*2*1}

Total = 4 * \frac{720}{6} * \frac{336}{6}

Total = 4 * 120* 56

Total = 26880

<em>Hence, there are 26880 ways</em>

5 0
3 years ago
Anthony is going to invest in an account paying an interest rate of 2%
melomori [17]

Answer:

12283.01

Step-by-step explanation:

5 0
3 years ago
Find 37.5% of 5280 feet
Shalnov [3]
The best thing to do is to find 10%, then multiply this by 3.75
5280/10= 528
528*3.75= 1980
Therefore, 37.5% of 5280ft is 1980ft
Hope this helps :)
4 0
3 years ago
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