Ask question

Ask question

All categories

3 years ago

13

Please help me in a hurry

2 answers:

siniylev [52]3 years ago

6 0

Answer:

1049.05

Step-by-step explanation:

Triss [41]3 years ago

6 0

Answer:

1049.05

Step-by-step explanation:

You might be interested in

A line passes through (10,4) and (13,-11). Write the equation of the line in standard form.

AlexFokin [52]

$\bf (\stackrel{x_1}{10}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{13}~,~\stackrel{y_2}{-11}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-11-4}{13-10}\implies \cfrac{-15}{3}\implies -5 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-4=-5(x-10)$

now

standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

therefore,

$\bf y-4=-5(x-10)\implies y-4=-5x+50\implies \blacktriangleright 5x+y=54 \blacktriangleleft$

7 0

4 years ago

The radius of a circle is 7.2 cm. Find the circumference to the nearest tenth.

Lynna [10]

Answer: 45.24

Step-by-step explanation:

6 0

3 years ago

Two forces, one of 45 pounds and the other 50 pounds, act on the same object. The angle between the forces is 33°. Find the magn

bearhunter [10]

Answer:

The magnitude of the resultant force is: 27.40 pounds

Step-by-step explanation:

Given

$F_1 = 45$

$F_2 = 50$

$\theta = 33$

Required

The magnitude of the resultant vector

To do this, we apply cosine formula

$R^2 = F_1^2 + F_2^2 - 2 * F_1 * F_2 * \cos(\theta)$

This gives:

$R^2 = 45^2 + 50^2 - 2 * 45 * 50 * \cos(33)$

$R^2 = 2025+ 2500 - 4500* 0.8387$

$R^2 = 2025+ 2500 - 3774.15$

$R^2 = 750.85$

Take square roots of both sides

$R = \sqrt{750.85\\$

$R = 27.40$

7 0

3 years ago

In 10 minutes, a heart can beat 700 times. At this rate, in how many minutes will a heart beat 140 times. At what rate can a hea

nalin [4]

In 14 minutes the heart will beat 140 times becuase i did 140/10 and got 14

3 0

4 years ago

The line graph on the y-axis is parallel to the x-axis, 3rd quadrant point, and an open downward parabola.

Ksivusya [100]

Answer:

$(x + 5) {}^{2} = - 12(y - 1)$

5 0

3 years ago