All categories

3 years ago

PLEASE HELP AND EXPLAIN! (3 different problems)

Mathematics

1 answer:

Margaret [11]3 years ago

5 0

Answer:

a}4/3

b}

c}-1/4

Step-by-step explanation:

a}4-c/4-(2+b)

putting the values of b and c n its place

4-(-4)/4-(2-4)

4+4/4-(-2)

8/4+2

8/6

4/3 or 1.33

b}IDK SORRY

c} y-x+5+y/4

-1-4+5-1/4

-6+5/4

-1/4

You might be interested in

Give an example of two numbers that are both 6-digit numbers,but the greater number is Determined by the hundreds place

VMariaS [17]

perhaps 300,900 and 300,400 ?

5 0

3 years ago

Swimming Pool On a certain hot summer's day, 345 people used the public swimming pool. The daily prices are $1.50 for children a

Natasha2012 [34]

Answer:

143

Step-by-step explanation:

just took the test

6 0

3 years ago

Read 2 more answers

Clare estimates that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s actual height is 4

chubhunter [2.5K]

Problem 1

The error is 2 inches since her estimate is 2 inches off the true value.

We can think of it like this

4 feet = 4*12 = 48 inches

4 feet, 2 inches = 4 ft + 2 in = 48 in + 2 in = 50 inches

So she guesses he is 48 inches, but he's really 50 inches, so 50-48 = 2 inches is her error.

==================================================

Problem 2

Divide the error (2 inches) over the actual height (50 inches) to get

2/50 = 4/100 = 4%

The percentage error is 4%

This means she is 4% off the target.

Note how 4% of 50 = 0.04*50 = 2 which was the error we found back in problem 1.

8 0

3 years ago

Please help me somebody!!! I really struggle with this in math class!

Tresset [83]

Answer:

$y - 9 = -\frac{4}{3}(x - 3)$

Step-by-step explanation:

Given the points (3, 9) and (9, 1), we must first solve for the slope of the line before proceeding with writing the point-slope form.

In order to solve for the slope (m ), use the following formula:

m = (y₂ - y₁)/(x₂ - x₁)

Let (x₁, y₁) = (3, 9)

(x₂, y₂) = (9, 1)

Substitute these values into the given formula:

m = (y₂ - y₁)/(x₂ - x₁)

m = (1 - 9)/(9 - 3)

$m = \frac{-8}{6} = \frac{-4}{3}$

Therefore, the slope of the line, m = -4/3.

Next, using the slope, m = -4/3, and one of the given points, (x₁, y₁) = (3, 9), substitute these values into the following point-slope form:

y - y₁ = m(x - x₁)

$y - 9 = -\frac{4}{3}(x - 3)$ ⇒ This is the point-slope form.

4 0

2 years ago

What is the simplified expression for this ?

schepotkina [342]

Answer:

I think it is 14.1421356237. I needed you can round it down to 14.14.

5 0

2 years ago