Ask question

Ask question

All categories

2 years ago

8

Mr. Miller built a rectangular frame for a sandbox in his back yard. He used boards that measured 414 feet for the width and 535

feet for the length. Which shows a reasonable value for the perimeter of the sand box?

1 answer:

madreJ [45]2 years ago

6 0

Answer:

1898

Step-by-step explanation:

414(2)+535(2)=P

828+1070=P

1898=P

You might be interested in

Geometry proofs. Prove Angle B = Angle C

koban [17]

Answer: It is vertical

Step-by-step explanation:

8 0

2 years ago

A bag of rice weighs 3.18 pounds. Find its mass in kilograms. ( 1 kg = 2.2 lb)

jeka57 [31]

Hello! So, to find the mass of the bag of rice in kilograms, you must do 3.18/2.2. 3.18/2.2 is 1.4454 and other numbers or 1.45 when rounded to the nearest hundredth. The bag of rice weighs about 1.45 kilograms.

4 0

3 years ago

Gala2k [10]

Answer:

5.5 days (nearest tenth)

Step-by-step explanation:

<u>Given formula:</u>

$\sf N=N_0e^{-kt}$

$\sf N_0$ = initial mass (at time t=0)
N = mass (at time t)
k = a positive constant
t = time (in days)

Given values:

$\sf N_0$ = 11 g
k = 0.125

Half-life: The <u>time</u> required for a quantity to reduce to <u>half of its initial value</u>.

To find the time it takes (in days) for the substance to reduce to half of its initial value, substitute the given values into the formula and set N to half of the initial mass, then solve for t:

$\begin{aligned}\sf N & = \sf N_0e^{-kt}\\\\\implies \sf \dfrac{11}{2} & = \sf 11e^{-0.125t}\\\\\sf \dfrac{1}{2} & = \sf e^{-0.125t}\\\\\sf \ln \left(\dfrac{1}{2}\right) & = \sf \ln e^{-0.125t\\\\\sf \ln \left(\dfrac{1}{2}\right) & = \sf -0.125t \ln e\\\\\sf \ln \left(\dfrac{1}{2}\right) & = \sf -0.125t(1)\\\sf t & = \sf \dfrac{\ln \left(\dfrac{1}{2}\right)}{-0.125}\\\\\sf t & = \sf 5.545177444...\\\\\sf t & = \sf 5.5\:\:days\:\:(nearest\:tenth)\end{aligned}$

Therefore, the substance's half-life is 5.5 days (nearest tenth).

Learn more about solving exponential equations here:

brainly.com/question/28016999

5 0

1 year ago

Read 2 more answers

Suppose George wins 34% of all chess games. (a) What is the probability that George wins two chess games in a row? (b) What

Sonbull [250]

Answer:

Step-by-step explanation:

Probability of winning a game = 0.34

a) Probability of winning two games simultaneously = .34 x .34 =.1156

b) Probability of winning 3 games in a row = .34³

c) Probability of winning three chess games in a row and failure in the fourth = .34³ x ( 1-.34)

c)

4 0

2 years ago

Read 2 more answers

1. 0 = 2x2 + 17x + 30

Anna11 [10]

Answer:

Simplify the equation and find the value of x

Step-by-step explanation:

$1 = 34 + 17x \\ - 17x = - 1 + 34 \\ 17x = - 33 \\ \\ x = - \frac{33}{17}$

8 0

2 years ago

Read 2 more answers