All categories

3 years ago

I need help with all math basically

Mathematics

2 answers:

WITCHER [35]3 years ago

5 0

Doesn't everyone? lol what can I help you with?

Pani-rosa [81]3 years ago

3 0

What do you need help with

You might be interested in

K-m/r=q , solve for k

strojnjashka [21]

$k-\dfrac{m}{r}=q\qquad|+\dfrac{m}{r}\\\\\boxed{k=q+\dfrac{m}{r}}\\--------------------\\\\\dfrac{k-m}{r}=q\qquad|\cdot r\neq0\\\\k-m=qr\qquad|+m\\\\\boxed{k=qr+m}$

7 0

2 years ago

Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of si

aliya0001 [1]

Answer:

Trigonometric ratios

$\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}$

where:

$\theta$ is the angle
O is the side opposite the angle
A is the side adjacent the angle
H is the hypotenuse (the side opposite the right angle)

To find sin x and cos y, we must first find the length of the hypotenuse (PO) of the given right triangle.

To do this, use Pythagoras' Theorem:

$a^2+b^2=c^2 \quad \textsf{(where a and b are the legs, and c is the hypotenuse)}$

Given:

a = 6
b = 8
c = PO

$\implies 6^2+8^2=PO^2$

$\implies PO^2=100$

$\implies PO=\sqrt{100}$

$\implies PO=10$

Using the found value of the hypotenuse and the trig ratios quoted above:

$\implies \sf \sin(x)=\dfrac{6}{10}=\dfrac{3}{5}$

$\implies \sf \cos(y)=\dfrac{6}{10}=\dfrac{3}{5}$

Therefore, $\sf \sin(x)=\cos(y)$

4 0

2 years ago

Read 2 more answers

The Graph describes the water level of creek after a rainstorm which best describes the domain in context?

belka [17]

The domain of a function are its possible input values

The domain of the function is (b) all real numbers greater than or equal to 0.

From the graph, we have the following observations

t represents time (it is plotted on the x-axis)
t starts at 0
t has no end

The above observations imply that; the domain starts from 0

Hence, the domain of the function is the set of all real numbers greater than or equal to 0.

Read more about domain at:

brainly.com/question/2709928

5 0

2 years ago

Car A travels 20 mph faster than Car B. In the same time that Car A travels 252 miles, Car B travels 196 miles. Find their speed

RoseWind [281]

Answer:

A = 70

B = 90

Step-by-step explanation:

We know that Car A travels 20 mph faster than Car B.

Assuming the speed of Car B to be x and the speed of Car A to be x+20, we can write:

$\frac{196}{x} =\frac{252}{x+20}$

Taking the reciprocal of both sides to make x the subject:

$196(x+20)=252x$

$196x+3920=252x$

$252x-196x=3920$

$56x=3920$

$x=70$ ---> speed of Car A

Finding the speed of Car B: $x+20 = 70+20=90$

Therefore, the speed of Car A = 70 and the speed of Car B = 90.

8 0

3 years ago

12 out of 20 doctors agree 15 out of 30 doctors agree are the ratios equivalent

uysha [10]

No it is not because 15 out of 30 is half but 12 out of 20 is more than half

4 0

3 years ago