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3 years ago

Draw a bar model that shows how the number of hours in March compares with the number of hours in February of this year.

Mathematics

2 answers:

gogolik [260]3 years ago

8 0

Okay so first we need to find how many days are in March and February. March has 31 days and because this year was a leap year February has 29 days.

The next step is to convert days to hours.
March: 31x24=744
February: 29x24=696

Now its time to graph

Sav [38]3 years ago

8 0

Answer:

Firstly we calculate the number of hours of both months.

This year is not a Leap year. So, the number of days of February is 28

and the number of days of March is 31

So, Number of hours February has 28 × 24 = 672 hours

and, Number of hours March has 31 × 24 = 744 hours

The bar graph is the best visual representation when we have categorical data. It is drawn by using a rectangular bar where the length of the bar represents height or frequency.

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in jacks class, 18 of the students are y'all and 10 are short. in Michael class 54 students are tall and 30 students are short w

Naddik [55]

Answer:

The answer is: both class have the same ratio.

Step-by-step explanation:

Get the ratio of tall to short. Divide Tall by Short:

Jack's class:

18/10 = 1.8 tall one for every short one

Michael's class:

54/30 = 1.8

The ratio is the same!

You can further prove this by multiplying 18 times 3 and getting 54, and 10 times 3 and getting 30.

Hope this Helps!! Have an Awesome Day!! (-:

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3 years ago

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Nour and Rana are shopping for a Christmas tree. They are deciding between 222 different types of trees (real and fake) and 444

ioda

From what the statement says the question seems to be to represent the sample space of randomly choosing a type of tree and a color for the decorations

In this case, what we must do is identify the events that exist and the options that each event has, like this:

Event 1:

Tree type: real or fake

Event 2:

Colors for the ornaments: White (W), Silver (S), Gold (G) or Purple (P)

Since in an event there are 2 options and the other 4 options, the final number of options would be 2 * 4, that is, 8 options, represented below:

(real, W), (real, S), (real, G), (real, P), (fake, W), (fake, S), (fake, G), (fake, P)

The above would be the sample space of the events.

Now the probability of 1 coming out is 1 over the event total, or 1/8.

5 0

3 years ago

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A student must have at least 10 hours of instructor-assisted driving time to pass

Solnce55 [7]

Answer:

t ≥ 10

Step-by-step explanation:

Since the student needs at least 10 hours of driving time, they need greater than or equal to 10 hours to pass.

4 0

2 years ago

the population of salmon in silver lake is 23,000 and it grows at a compound rate of 3.5% per year. using x for years and y for

jarptica [38.1K]

23,000(1.035)^x=y
27316 or 27317 would be the population in 5 years

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3 years ago

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Value of the derivative of g(x)=8-10Cosx at 'x=0' is?

VLD [36.1K]

Answer:

g'(0) = 0

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Pre-Calculus

Unit Circle

Calculus

Derivatives
Derivative Notation
The derivative of a constant is equal to 0
Derivative Property: $\frac{d}{dx} [cf(x)] = c \cdot f'(x)$
Trig Derivative: $\frac{d}{dx} [cos(x)] = -sin(x)$

Step-by-step explanation:

Step 1: Define

g(x) = 8 - 10cos(x)

x = 0

Step 2: Differentiate

Differentiate [Trig]: g'(x) = 0 - 10[-sin(x)]
Simplify Derivative: g'(x) = 10sin(x)

Step 3: Evaluate

Substitute in x: g'(0) = 10sin(0)
Evaluate Trig: g'(0) = 10(0)
Multiply: g'(0) = 0

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3 years ago