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3 years ago

4 and 2 5ths + 2 and 2 3irds =

Mathematics

1 answer:

taurus [48]3 years ago

4 0

Answer:

The answer is 7.0666

Step-by-step explanation:

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Two numbers are less than 100.their GCF is 15.the smallest number is 1.3 of the large number . What are the numbers?

Over [174]

30 and 60 is ur answer

6 0

3 years ago

Two sides of a triangle have lengths 9 m and 13 m. The angle between them is increasing at a rate of 0.02radians /min. How fast

Olin [163]

Answer:0.175 m/s

Step-by-step explanation:

Given

Two sides of length 9 and 13 m

angle between them is increasing at an angle of 0.02 rad/min

rate of increasing of third at $\theta =\frac{\pi }{3}$

let a=9

b=13

c=unknown side

Now using cos rule of triangle

$cos\theta =\frac{a^2+b^2-c^2}{2ab}$

$cos\theta =\frac{a^2+b^2}{2ab}-\frac{c^2}{2ab}$

Differentiating both sides we get

$-\sin \theta \times \frac{\mathrm{d} \theta }{\mathrm{d} t}=0-2\frac{c}{2ab}\times \frac{\mathrm{d} c}{\mathrm{d} t}$

at $\theta =\frac{\pi }{3}$

c=11.53 m

substituting values we get

$\frac{\sqrt{3}}{2}\times 0.02=\frac{11.53}{9\times 13}\times \frac{\mathrm{d} c}{\mathrm{d} t}$

$\frac{\mathrm{d} c}{\mathrm{d} t}=0.175 m/s$

8 0

3 years ago

Setup a trig equation to solve for the angle indicated:

Mandarinka [93]

Answer:

$\cos(θ) = \frac{4}{5}$

is the trig equation

6 0

2 years ago

What is the value of x in the equation 8x-2y = 48, when y= 4?<br> O6<br> O7<br> O 14<br> O 48

aksik [14]

The answer should be B-7

6 0

3 years ago

Question 1 of 10

statuscvo [17]

Answer:

slope is -1

Step-by-step explanation:

Slope of the line is changes in y over changes in x. It can also be referred as rise over run.

We can express mathematically as:

$\displaystyle{m=\dfrac{y_2-y_1}{x_2-x_1}}$

where m is slope.

Let (-2,5) be $\displaystyle{(x_2,y_2)}$ and (6,-3) be $\displaystyle{(x_1,y_1)}$ . Hence, apply the slope formula:

$\displaystyle{m=\dfrac{5-(-3)}{-2-6}}\\\\\displaystyle{m=\dfrac{5+3}{-8}}\\\\\displaystyle{m=\dfrac{8}{-8}}\\\\\displaystyle{m=-1}$

Therefore, the slope is -1

5 0

2 years ago