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3 years ago

PLEASE HURRRYYY

Mathematics

1 answer:

marysya [2.9K]3 years ago

7 0

Find the Least common Multiple of the three denominators:

4, 8 , 12 , 16

3,6,9,12,15

2,4,6,8,10,12,14

The LCM is 12.

The answer would be d. 12

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While on your trip you get sick and eventually end up in the hospital. The doctor orders 120 mg of medicine to be given in the m

kenny6666 [7]

Answer:

4 tablets

Step-by-step explanation:

If the morning dose is 120mg and each tablet is 30mg then all you do is divide 120 by 30 to get the answer 4

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3 years ago

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Using the elimination method, what is x and y ( please explain, I am still slightly confused)

Blizzard [7]

Answer:

(- 4, 1 )

Step-by-step explanation:

Given the 2 equations

x + 3y = - 1 → (1)

- 2x - 3y = 5 → (2)

Adding the 2 equations term by term will eliminate the y- term

- x + 0 = 4

- x = 4 ( multiply both sides by - 1 )

x = - 4

Substitute x = - 4 into either of the 2 equations and solve for y

Substituting into (1)

- 4 + 3y = - 1 ( add 4 to both sides )

3y = 3 ( divide both sides by 3 )

y = 1

solution is (- 4, 1 )

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3 years ago

Describe the pattern 3, 0, -3, 0, 3, 0 and find the next number in the sequence

Leni [432]

The sequence is -3, -3, +3, +3
the next number is -3

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3 years ago

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A 5-digit code is given to all cashiers at a store to let them log onto the cash register. What is the probability that an emplo

EleoNora [17]

Answer:

The probability that an employee receives a code with all 5 numbers the same is $\frac{1}{10^4}$ .

Step-by-step explanation:

Consider the provided information.

The numbers which we can use in code is: 0,1,2,3,4,5,6,7,8,9

That means there are 10 numbers which we can use.

The total ways of selecting a 5 digit number with all 5 numbers the same = 10.

The total ways of selecting a 5 digit number is: 10×10×10×10×10= $10^5$

The required probability is:

$Probability=\frac{\text{Favorable outcomes}}{\text{Total number of outcomes}}$

$Probability=\frac{10}{10^5}$

$Probability=\frac{1}{10^4}$

Hence, the probability that an employee receives a code with all 5 numbers the same is $\frac{1}{10^4}$ .

3 0

3 years ago

12) Find the sum, S7, for the geometric series (1 + 5 + 25+ --- + 15625).

vfiekz [6]

Answer:

Find the (r) between adjacent members

a2/a1=+25/5=5

a3/a2=+125/+25=5

a4/a3=+625/+125=5

a5/a4=+3125/+625=5

a6/a5=+15625/+3125=5

The ration (r) between every two adjacent members of the series is constant and equal to 5

General Form: a

×r

n-1

This geometric series: a

=5×5

n-1

The nature of this series

Sum of finite geometric series members

sum of a geometric series

The sum of our particular series

a 1-rn = 5 1-56 = 5 1-15625 = 5 -15624 =5×3906=19530

1-r 1-5 -4 -4

Finding the n

element

a2 =a1×r2-1 =a1×r1 =5×51 =25

a3 =a1×r3-1 =a1×r2 =5×52 =125

a4 =a1×r4-1 =a1×r3 =5×53 =625

a5 =a1×r5-1 =a1×r4 =5×54 =3125

a6 =a1×r6-1 =a1×r5 =5×55 =15625

a7 =a1×r7-1 =a1×r6 =5×56 =78125

a8 =a1×r8-1 =a1×r7 =5×57 =390625

a9 =a1×r9-1 =a1×r8 =5×58 =1953125

a10 =a1×r10-1 =a1×r9 =5×59 =9765625

a11 =a1×r11-1 =a1×r10 =5×510 =48828125

a12 =a1×r12-1 =a1×r11 =5×511 =244140625

a13 =a1×r13-1 =a1×r12 =5×512 =1220703125

a14 =a1×r14-1 =a1×r13 =5×513 =6103515625

a15 =a1×r15-1 =a1×r14 =5×514 =30517578125

a16 =a1×r16-1 =a1×r15 =5×515 =152587890625

8 0

3 years ago