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3 years ago

Plz help ASAP Plz plz plz help ASAP the pic is there so you can see the question

Mathematics

1 answer:

velikii [3]3 years ago

5 0

Answer:

If going from top to bottom.

The 2nd And 5th choices are correct.

Explamation:

2nd choice: The shortest feather's length is 1 7/8 inches. The Longest feather's length is 4 2/8 inches. If you subtract 1 7/8 from 4 2/8 you get 2 3/8.

5th choice: The shortest feather's length is 1 7/8 inches. The Longest feather's length is 4 2/8 inches. If you add 4 2/8 & 1 7/8 you get 6 1/8.

You might be interested in

Topic : Probability<br> Website: Mathswatch

lora16 [44]

The probability shows that the total number of times it'll land on 1 or 5 will be 78.

<h3>How to calculate the probability?</h3>

The number of times that 1 will be rolled will be:

= 0.1 × 300

= 30

The number of times that 5 will be rolled will be:

= 0.16 × 300

= 48

Therefore, the total number of times it'll land on 1 or 5 will be:

= 30 + 48

= 78

Learn more about probability on:

brainly.com/question/2475620

#SPJ1

4 0

2 years ago

Use the definition to find an expression for the area under the curve y = x3 from 0 to 1 as a limit. lim n→∞ n i = 1 R (b) The f

Harlamova29_29 [7]

The summand (R?) is missing, but we can always come up with another one.

Divide the interval [0, 1] into $n$ subintervals of equal length $\dfrac{1-0}n=\dfrac1n$ :

$[0,1]=\left[0,\dfrac1n\right]\cup\left[\dfrac1n,\dfrac2n\right]\cup\cdots\cup\left[1-\dfrac1n,1\right]$

Let's consider a left-endpoint sum, so that we take values of $f(\ell_i)={\ell_i}^3$ where $\ell_i$ is given by the sequence

$\ell_i=\dfrac{i-1}n$

with $1\le i\le n$ . Then the definite integral is equal to the Riemann sum

$\displaystyle\int_0^1x^3\,\mathrm dx=\lim_{n\to\infty}\sum_{i=1}^n\left(\frac{i-1}n\right)^3\frac{1-0}n$

$=\displaystyle\lim_{n\to\infty}\frac1{n^4}\sum_{i=1}^n(i-1)^3$

$=\displaystyle\lim_{n\to\infty}\frac1{n^4}\sum_{i=0}^{n-1}i^3$

$=\displaystyle\lim_{n\to\infty}\frac{n^2(n-1)^2}{4n^4}=\boxed{\frac14}$

8 0

4 years ago

An airliner maintaining a constant elevation of 2 miles passes over an airport at noon traveling 500 mi/hr due west. At 1:00 PM,

butalik [34]

Answer:

$\frac{ds}{dt}\approx 743.303\,\frac{mi}{h}$

Step-by-step explanation:

Let suppose that airliners travel at constant speed. The equations for travelled distance of each airplane with respect to origin are respectively:

First airplane

$r_{A} = 500\,\frac{mi}{h}\cdot t\\r_{B} = 550\,\frac{mi}{h}\cdot t$

Where t is the time measured in hours.

Since north and west are perpendicular to each other, the staight distance between airliners can modelled by means of the Pythagorean Theorem:

$s=\sqrt{r_{A}^{2}+r_{B}^{2}}$

Rate of change of such distance can be found by the deriving the expression in terms of time:

$\frac{ds}{dt}=\frac{r_{A}\cdot \frac{dr_{A}}{dt}+r_{B}\cdot \frac{dr_{B}}{dt}}{\sqrt{r_{A}^{2}+r_{B}^{2}} }$

Where $\frac{dr_{A}}{dt} = 500\,\frac{mi}{h}$ and $\frac{dr_{B}}{dt} = 550\,\frac{mi}{h}$ , respectively. Distances of each airliner at 2:30 PM are:

$r_{A}= (500\,\frac{mi}{h})\cdot (1.5\,h)\\r_{A} = 750\,mi$

$r_{B}=(550\,\frac{mi}{h} )\cdot (1.5\,h)\\r_{B} = 825\,mi$

The rate of change is:

$\frac{ds}{dt}=\frac{(750\,mi)\cdot (500\,\frac{mi}{h} )+(825\,mi)\cdot(550\,\frac{mi}{h})}{\sqrt{(750\,mi)^{2}+(825\,mi)^{2}} }$

$\frac{ds}{dt}\approx 743.303\,\frac{mi}{h}$

6 0

3 years ago

Claire's bedroom measures 16 feet by 18 feet if the purple carpet that she wants to buy costs $3.59 per square foot what will it

katovenus [111]

Answer:

Cost of purple carpet for Claire's bedroom is $1033.92.

Step-by-step explanation:

Given:

The dimension of bedroom are given as 16 feet and 18 feet.

Hence we can say that;

Length = 18 feet

width = 16 feet

Cost of carpet per square feet = $3.59

We will first find the area of the bedroom.

Area of bedroom can be calculated by multiplying length with width.

Area of bedroom = $16 \times 18 = 288 ft^2$

Hence Area of bedroom is 288 square feet.

Now we know that;

Cost of carpet per square feet = $3.59

Hence Cost of carpet for 288 square feet is ;

we will unitary method to find the same;

Cost of carpet for bedroom = $\$3.59 \times 288 = \$1033.92$

Hence Cost of carpet for Claire's bedroom is $1033.92.

Step-by-step explanation:

6 0

3 years ago

Diana ordered a shipment of 48 sun hats for the store she owns. Of the 48 hats she ordered, about 20% were pink. How many of the

kotegsom [21]

Answer: If the answer was a half then I would say about 9.6 but if the answer if a whole then the whole would be 10 but doing the math out the answer is 9.6. Have a wonderful day

7 0

3 years ago

Read 2 more answers