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3 years ago

What is going on with Brainly rn mine is not working at all

Mathematics

1 answer:

Ratling [72]3 years ago

8 0

Answer:

I think it might be just u. U might want to check your wifi or your electronical device or try refreshing the page.

Step-by-step explanation:

mark as brainliest if u don't mind

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A survey was done of students in a high school to see if there was a connection between a student's hair color and her or his ey

Daniel [21]

ANSWER:

The probability is 0.25

STEP-BY-STEP EXPLANATION:

In this case, we must take into account the number of children who have brown eyes and black hair.

If we look at the table we can see that it is 0.25, that is, if there are 100 children, 25 have these characteristics, therefore

$p=\frac{25}{100}=0.25$

8 0

1 year ago

Calculate 7.35 x 103 divided by 5.2 x 107 by using scientific notation. Write answer in scientific notation. (round to the hundr

Oxana [17]

Answer:

1.41*10^-4

Step-by-step explanation:

Just put it in a calculator.

6 0

3 years ago

Which box is greater,a 1.5 lb box of raisins or a 650 gram box of raisins show work?

Alexandra [31]

1.5lb because 1.5lb coverted into grams is 680 and 680 is more than 650

7 0

3 years ago

What is the equation of the line in slope-intercept form that is perpendicular to the line y=3/4x-2 and passes through the point

tatyana61 [14]

Answer:

Step-by-step explanation:

You have to plug numbers into point slope formula (make sure to use a slope of -4/3 since its perpendicular) and then solve for y.

7 0

3 years ago

A force of 50 pounds acts on an object at an angle of 45 degrees. A second force of 75 pounds acts on the object at an angle of

Contact [7]

Answer:

The magnitude of the resultant force is:

$R=100.3 \:pound$

The direction is:

$\theta=1.2^{\circ}$

Step-by-step explanation:

Let's find the components of each vector is x and y-directions first.

<u>Sum of x-component vector forces.</u>

$F_{tot-x}=F_{1}cos(45)+F_{2}cos(30)$

$F_{tot-x}=50cos(45)+75cos(30)$

$F_{tot-x}=100.3 \: pound$

<u>Sum of y-component vector forces.</u>

$F_{tot-y}=-F_{1}sin(45)+F_{2}sin(30)$

$F_{tot-y}=-50sin(45)+75sin(30)$

$F_{tot-y}=2.1 \: pound$

The magnitude of the resultant force is:

$R=\sqrt{100.3^{2}+2.1^{2}}$

$R=100.3 \:pound$

The direction is:

$tan(\theta)=\frac{2.1}{100.3}$

$\theta=arctan(\frac{2.1}{100.3})$

$\theta=1.2^{\circ}$

I hope it helps you!

4 0

3 years ago