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tamaranim1 [39]

3 years ago

5

The flight time of a shell shot at angle Φ and initial velocity V is T(f)= 2V/g sinΦ. Compute the average flight time for Φ in t

he interval [π/6,π/4]

1 answer:

KATRIN_1 [288]3 years ago

5 0

Try useing https://www.peeranswer.com/question/5791271b9d34d9786cacb24f
they are awesome

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In triangle PQR, PR = 23mm, QR = 39mm, and m<R = 163 degrees. Find the area of the triangle to the nearest tenth.

Schach [20]

Answer: 131.1287 square mm (approx)

Step-by-step explanation:

The area of a triangle,

$A=\frac{1}{2} \times s_1\times s_2\times sin \theta$

Where $s_1$ and $s_2$ are adjacent sides and $\theta$ is the include angle of these sides,

Here PR and QR are adjacent sides and ∠R is the included angle of these sides,

Thus, we can write,

$s_1 = PR= 23\text{ mm}$ , $s_2=QR=39\text{ mm}$ and $\theta = 163^{\circ}$ ,

Thus, the area of the triangle PQR,

$A=\frac{1}{2} \times 23\times 39\times sin163^{\circ}$

$A=\frac{262.257419136}{2} = 131.128709568\approx 131.1287\text{ square mm}$

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3 years ago

Jim's stride measures $2\frac{1}{2}$ feet, and Jeffrey's stride measures $2\frac{2}{3}$ feet. There are 5280 feet in a mile. If

djyliett [7]

Answer:

$\frac{16}{15}$

Step-by-step explanation:

The number of stride Jim takes to walk a mile is $\frac{5280}{2\frac{1}{2}}=2112$ strides

The number of strides Jeffrey takes to walk a mile is $\frac{5280}{2\frac{2}{3}}=1980$ strides

Hence, ratio of number of strides of Jim to number of strides of Jeffrey is:

$\frac{2112}{1980}=1\frac{1}{15}$

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3 years ago

yawa3891 [41]

Answer:

5.3

Step-by-step explanation:

subract

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4 years ago

Write the equation using the slope-intercept form.

dimulka [17.4K]

Answer:

y= -2/3x+9

Step-by-step explanation:

slope int form is y=mx+b, so just take the given numbers and plug them into the equation.

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3 years ago

Sin(x-pi/6)+cos(x-pi/3)=(√3+1)÷4

Vesna [10]

Answer:

<h2 />

Step-by-step explanation:

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4 years ago