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2 years ago

Can someone answer this question and show work. Please I only have this period to do it. It ends at 8:40 please someone do it

Mathematics

1 answer:

Alla [95]2 years ago

5 0

Answer:

4((sqrt5)-2)

Step-by-step explanation:

Factor 2 Sqrt(5)+4 = 8/(2(sqrt5+4))

divide then you get 5/((sqrt5)+1)

4((sqrt5)-2)

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The half life of a medication is the amount of time for half of the drug to be eliminated from the body. The half life of advil

Aleksandr [31]

In short, part A is from 1pm to 6pm, well, that's 5 hours, namely t = 5.

and part B is t = 12, so we simply plug those values in, nothing to it.

$\bf R=M(0.5)^{\frac{t}{2}}\qquad \qquad \stackrel{t=5}{R=M(0.5)^{\frac{5}{2}}}\qquad \qquad \stackrel{t=12}{R=M(0.5)^{\frac{12}{2}}}$

and round it up as needed if any.

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3 years ago

Which values are equivalent to the fraction below? Check all that apply.

artcher [175]

Answer:

Step-by-step explanation:

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5 0

3 years ago

Read 2 more answers

John is driving the country. He used 75 gallons of gas in 5 days. If he keeps using the gas at the same rate, how many gallons w

Alex Ar [27]

120.

To find out how much gas he is using per day, you can use 75/5 which comes to 15. Then multiplying 15 with the 8 days, you get a sum of 120.

7 0

3 years ago

Bryan's hockey team is purchasing jerseys. The company charges $250 for a onetime set-up fee and $23 for each printed jersey. Wh

Ugo [173]

Answer:

250+23x=y

Step-by-step explanation:

x represents the amounts of jerseys the team buys. Once that amount is known they will multiply. $23x= 23 *x$

y is the amount of money spent, or the sum.

7 0

3 years ago

Solve for x: three fourths times x plus five fourths equals four times x

Nostrana [21]

Answer:

x equals five thirteenths

Step-by-step explanation:

To solve this, we will follow the steps below;

$\frac{3}{4}$ × x + $\frac{5}{4}$ = 4 × x

$\frac{3x}{4}$ + $\frac{5}{4}$ = 4x

$\frac{3x + 5}{4}$ = 4x

Multiply both-side of the equation by 4

$\frac{3x + 5}{4}$ × 4= 4x × 4

On the left-hand side of the equation 4 will cancel-out 4, thus the equation becomes;

3x + 5 = 16x

subtract 3x from both-side of the equation

16x - 3x = 5

13x = 5

Divide both-side of the equation by 13

$\frac{13x}{13}$ = $\frac{5}{13}$

(On the left-hand side of the equation 13 at the numerator will cancel-out 13 at the denominator while on the right-hand side of the equation 5 will be divided by 13)

x = $\frac{5}{13}$

x equals five thirteenths

7 0

3 years ago