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navik [9.2K]
3 years ago
10

Can someone good with math help out ?

Mathematics
1 answer:
Finger [1]3 years ago
6 0
Sry i suck in math brother
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What is the value of this expression? PLEASE HELP!!!!
Brrunno [24]
2 X { 6 + [ 12 divided ( 3 + 1 ) ] } - 1

3 + 1 = 4 

12 divided by 4 is 3

2 X { 6 + [ 3 ] } - 1

6 + 3 = 9

2 X { 9 } - 1

9 X 2 = 18

18 - 1 = 17!

17 is the answer

I used PEMDAS

P - Parenthesis

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

[in order that your supposed to do]




5 0
3 years ago
Can someone help me please
Yakvenalex [24]

Answer:

the third one ( -7+u+8t)

Step-by-step explanation:

first you add the ts together and you get 8. Then u keep the U and cancel out the +2 nad the -2. Then you are left with your answer. have a nice day

7 0
3 years ago
Sam rented a truck for one day. There was a base fee of $16.95, and there was an additional charge of 73 cents for each mile dri
Naddik [55]

Answer:  134 miles

Step-by-step explanation:  

f(m) = 16.95 + 0.92m

140.23 = 16.95 + 0.92m

0.92m = 140.23 - 16.95

0.92m = 123.28

m = 123.28/0.92

m = 134 miles

5 0
2 years ago
The anithistamine Benadryl is often prescribed for allergies. A typical dose for a 100-pound person is 25 mg every six hours. Fo
Firdavs [7]

Answer:

56 chewable tablets

280mL liquid Benadryl

Step-by-step explanation:

For the first part:

First we need to find out how many tablets of 12.5mg would we need per dose.

1 dose is 25 mg and the tablets are in 12.5 mg form.

1 dose = \dfrac{25mg}{12.5mg} = 2

That would mean you would need 2 tablets per dose.

Next you need to calculate how many times a day it needs to be taken. A day has 24 hours and it needs to be taken every 6 hours.  Just divide 24 hours by 6 hours. So that would mean that it needs to be taken 4 times a day.

Next we need to see how many times a week it should be taken and you can get that by multiplying the number of times a day by the number of days a week.

4 x 7 = 28 times

Lastly, you multiply the number of times a week by the number of tablets per dose.

28 times a week x 2 tablets = 56 tablets.

For the second part:

12.5 mg/5mL

The needed dose is 25 mg so we need to find how many mL is needed for 25 mg. 12.5mg is only have of 25 mg we need to double it to attain the correct dosage.

\dfrac{12.5mg}{5mL} x \dfrac{2}{2} = \dfrac{25mg}{10mL}

This means that for every 25 mg, you will need to give 10mL.

Again we do the same procedure as the first to decide how much liquid Benadryl you need to give in a week. We know that based on the previous that we need to administer this 28 times a week, so just multiply the number of mL per dose by the number of times per week.

10mL x 28 = 280mL

4 0
3 years ago
Mhanifa can you please help? This is due soon!
nataly862011 [7]

Answer:

8)

  • x/15 = tan 48°
  • x = 15 tan 48°
  • x =  16.7

9)

  • x/19 = tan 72°
  • x = 19 tan 72°
  • x = 58.5

10)

  • x/19 = cot 47°
  • x = 19 cot 47°
  • x = 17.7

11)

  • x/15 = cot 50°
  • x = 15 cot 50°
  • x = 12.6

3 0
3 years ago
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