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3 years ago

Pls help with these questions I can give brainliest thank you all! 9 a and b

Mathematics

1 answer:

nata0808 [166]3 years ago

7 0

Answer:

A. 8 1/4 * 11 1/2 * 14=1328 1/4 ft^2

8 1/4 height times 11 1/2 width times 14 in length equals 1328 1/4 feet squared

B. 8 1/4 * 14 1/2 * 14=1674 3/4

8 1/4 height times 11 1/2 width plus 3 so 14 1/2 width times 14 equals 1674 3/4 feet squared

Step-by-step explanation:

You might be interested in

Krista has a quiz today. There are 4 questions with 4 options. Each question only has one correct answer. She wants to guess and

Lyrx [107]

Answer:

The probability is 0.258

Step-by-step explanation:

In this question, we want to know the probability of Krista getting exactly 3 out of the options she chooses right.

For all the questions, there are 4 questions with 4 options each

Total number of options is 4 * 4 = 16 options

there are 3 wrong options and one correct option per question. Total number of correct option is 4 and the total number of wrong options is 12

Probability of selecting a wrong option is 12/16 = 3/4 while the probability of selecting a correct option is 1/4

Thus, we can use a Bernoulli approximation to get this probability of getting three right.

let the probability of selecting a correct option be p and that of a wrong option be a.

Probability of selecting exactly three correct ones will be;

P(r = 3) = nCr p^r q^(n-r)

where n is the total number of options and r is the number of options we are selecting to be correct.

The probability = 12C3 * (1/4)^3 * (3/4)^9

= 220 * 0.015625 * 0.075084686279 = 0.258

7 0

4 years ago

A jogger is going around a circular track with a radius of 100 ft. Determine the

sweet-ann [11.9K]

Answer:

ω= 0.01 rad/s

Step-by-step explanation:

The given data is question is ,

r = 100ft .
t = 3 min = 180s.

Firstly let's find the linear speed. Which is

=> v = Circumference/time

=> v = 2πr/180s

=> v = 3.14 × 100ft ./ 90

=> v = 3.48 ft/s ≈ 1m/s

Now the angular speed and linear speed are related as follows ,

=> v = r $\omega$

=> $\omega$ = v/r

=> $\omega$ = 1/100

=> $\omega$ = 0.01 rad/s

<h3>Hence the angular speed is 0.01 rad/s.</h3>

3 0

3 years ago

A number decreased by 7 is 14 find the number

Serhud [2]

Answer:

Step-by-step explanation:

You can write it as x="a number".

x - 7 = 14

so 7 + 14 = x

so 21 = x

"A number" is 21.

3 0

3 years ago

Algebra help (picture is included)

SVETLANKA909090 [29]

$\boxed {\boxed {\text {Volume = base area x height}}}$

Base Area = 2 x 2 = 4 cm²

Volume = 4 x 3.5 = 14 cm³

Answer: 14 cm³

3 0

4 years ago

In 2012, on average, about $9.46\times10^{-1}$ pound of potatoes was produced for every $2.3\times10^{-5}$ acre harvested. How m

muminat

Answer:

4.113 × 10⁴ pounds per acre = 41,130 pounds per acre to the nearest pounds per acre

Step-by-step explanation:

9.46 × 10⁻¹ pounds of potatoes were produced for every 2.3 × 10⁻⁵ acre harvested. The average pounds of potatoes harvested per acre would be pounds of potatoes/acres harvested = 9.46 × 10⁻¹ pounds/2.3 × 10⁻⁵ acre = 4.113 × 10 ⁻¹⁻⁻⁵ = 4.113 × 10⁵⁻¹ = 4.113 × 10⁴ pounds per acre = 41,130 pounds per acre to the nearest pounds per acre.

6 0

3 years ago