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3 years ago

If it is 40 degrees Celsius, what is the temperature in Fahrenheit?

Mathematics

1 answer:

MaRussiya [10]3 years ago

7 0

Answer:

104 = B

Step-by-step explanation:

A quick way to do this is to use this formula

F = 2*C + 30
C = 40
F = 2*40 + 30
F = 80 + 30
F = 110

Since this is an estimate, you are only guided to whether your answer is correct or not. Here's the actual formula

F = (9/5) * 40 + 32
F = 360/5 + 32
F = 72 + 32
F = 104

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Find the absolute value of 2 and 2 3rd and negative 9 over 4

gayaneshka [121]

we are given

absolute value of 2 and 2 3rd and negative 9 over 4

Firstly , we need write it in terms of expression

2 and 2 3rd is

$2+\frac{2}{3}$

so, we get as

$|2+\frac{2}{3} -\frac{9}{4} |$

now, we can simplify it

Firstly , we will find common denominator

$|\frac{2*12}{1*12} +\frac{2*4}{3*4} -\frac{9*3}{4*3} |$

$|\frac{24}{12} +\frac{8}{12} -\frac{27}{12} |$

we can see that

all denominators are same

so, we can combine numerators

$=|\frac{24+8-27}{12} |$

$=|\frac{5}{12} |$

$=\frac{5}{12}$ ..............Answer

6 0

3 years ago

When looking at a decimal number (ex. 6.349821477...) what are some of the characteristics that will help you identify if the nu

quester [9]

Answer:

To determine whether a decimal is rational or not, you need to know that...

Irrational numbers don't end and have no pattern whereas rational numbers are the complete opposite. Rational numbers end and have a repeating pattern.

Step-by-step explanation:

Here are examples of irrational numbers:

0.9384903204..... , π , √2

Examples of rational numbers:

0.777777... (is rational because it has a repeating pattern of 7) , √49

Hope this helps :)

5 0

2 years ago

HELP WILL GIVE BRAINLIEST!!!!

iris [78.8K]

Answer:

2 x 20^2

Step-by-step explanation:

I did it on paper and looked it up to make sure

5 0

3 years ago

Read 2 more answers

Absolute value of 15

mixer [17]

Answer:

Step-by-step explanation:

The absolute value takes any value and makes it positive.

|15| = 15

8 0

3 years ago

Read 2 more answers

A ball is thrown at an initial height of 7 feet with an initial upward velocity at 27 ft/s. The balls height h (in feet) after t

lianna [129]

Answer:

The height of ball is 17 ft at t=0.55 and t=1.14.

Step-by-step explanation:

The general projectile motion is defined as

$y=-16t^2+vt+y_0$

Where, v is initial velocity and y₀ is initial height.

It is given that the initial height is 7 and the initial upward velocity is 27.

Substitute v=27 and y₀=7 in the above equation to find the model for height of the ball.

$h(t)=-16t^2+27t+7$

The height of ball is 17 ft. Put h(t)=17.

$17=-16t^2+27t+7$

$0=-16t^2+27t-10$

On solving this equation using graphing calculator we get

$t=0.549,1.139$

$t\approx 0.55,1.14$

Therefore the height of ball is 17 ft at t=0.55 and t=1.14.

3 0

3 years ago