3 years ago

A ratio of 14:40 =13;?

Mathematics

1 answer:

AVprozaik [17]3 years ago

5 0

Answer:

9.75

Step-by-step explanation:

You might be interested in

What is the midpoint of the line segment with endpoints (-5.5, -6.1) and (-0.5, 9.1)?

Margarita [4]

Answer:

(-5/2, 3/2)

Step-by-step explanation:

[(-5.5+.5)/2, (9.1-6.1)/2)} = (-5/2, 3/2)

3 0

3 years ago

Slope-intercept form of the equation for the line?

vaieri [72.5K]

Answer:

$\large\boxed{y=-\dfrac{3}{10}x+\dfrac{1}{2}}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

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

We have the points from the graph (-5, 2) and (5, -1).

Substitute:

$m=\dfrac{-1-2}{5-(-5)}=\dfrac{-3}{10}=-\dfrac{3}{10}$

We have the equation in form:

$y=-\dfrac{3}{10}x+b$

Put the coordinates of the point (5, -1) to the equation:

$-1=-\dfrac{3}{10}(5)+b$

$-1=-\dfrac{3}{2}+b$

$-\dfrac{2}{2}=-\dfrac{3}{2}+b$ add 3/2 to both sides

$\dfrac{1}{2}=b\to b=\dfrac{1}{2}$

4 0

3 years ago

A student selected from a class will be either a boy or a girl. if the probability that a boy will be selected is 0.3, what is t

Otrada [13]

The probability that a girl will be selected from the class is 0.7

8 0

3 years ago

18 p please help me!

nevsk [136]

It should be the second one

7 0

3 years ago

What's rotational symmetry? Can u give a full on explanation? PLS

prohojiy [21]

There is rotational symmetry if there is a center around the object that is turned or rotated a certain amount of degrees and the shape isn't changed.

4 0

3 years ago