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Vitek1552 [10]
3 years ago
15

Please help ASAP thanks!!

Mathematics
1 answer:
Dimas [21]3 years ago
4 0
To find the total area. find the sum of the area of the rectangle and the triangle.

Rectangle area:  A = lw  or A = 8cm(4cm) = 32 cm²

Triangle Area is defined by A = \frac{b(h)}{2} where b = base of the triangle and h = height of the triangle.   Since our triangle is a right triangle, the base and height of the triangle are the two legs of the right triangle.  One of the legs has a measure of 3, but we don't see the measure of the other leg.  It is actually 4cm though... Do you see that it is just the opposite side of the rectangle already showing a measure of 4 cm.. We know that opposite sides of rectangles have the same measure.

So in our triangle b = 3cm and h = 4cm and A = \frac{3(4)}{2}= 6cm²

Total Area would be A = 32cm² + 6cm² = 38cm²
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the amount of snowfall in jan was 2 3/4 feet. the amount of snowfall in february was 1 2/3 feet. how much snow fall was there in
Mkey [24]

Answer this is an example 4 you

To do this problem, you need to change the way the fractions are displayed so that you can simplify them.

The first step is to change them to improper fractions: fractions like 4/3 that represent more than 100% (parts adding to more than one whole).

For example, to change the first fraction in this way, multiply the number in front (2) by the bottom number:

2 * 3 = 6

This means the 2 can also represent 6 / 3. Remember that 1 equals 3/3 so 2 equals 6/3. Now add this to the 1/3 you started with, and you end up with 7/3.

Do the same for the other fraction.

Now that you have both fractions written in this way, you can multiply each by the other's denominator to arrive at their LCD (least common denominator). It won't always be least, but you can always simplify further. In this case, the numbers are small enough that it likely won't matter.

You will end up with a fraction of halves: some number x, over 2, meaning x number of halves.

Your other fraction is 7/3. So the common denominator is the bottom numbers multiplied together: 2 * 3 = 6.

To change 7/3 to a fraction of sixths, you multiply the whole thing by two. This gets the bottom number to be six.

7 * 2 = 14

3 * 2 = 6

So this fraction can also be written as 14/6. Once again, do the same to the other fraction (but multiply by 3, to get the other fraction into sixths also, since it is currently halves).

Now you have two fractions that are both in parts of six. A ratio (x:y) is nothing more than a fraction itself. So if you had for example the ratio

2/5 : 10/5

This ratio could also be written as 1/5 : 5/5, or 1/5 to 1. Both numerators (the top number) are divisible by 2, so you can divide them both by 2 and end up with a simplified version of the same ratio.

Whatever ratio you end up with (14/6 : some other fraction), do the same thing to it. See if any of the numbers share a common factor, and simplify where possible. If it's not possible to simplify further, you're done.

6 0
2 years ago
Camila drove 30 miles per hour to get to her math class. what is the dependent quantity
Naya [18.7K]
Equations with Independent and Dependent Variables
 Common Core Standard: Use variables to represent two quantities in a real-world problem that change in relationship to one another; write an equation to express one quantity, thought of as the dependent variable, in terms of the other quantity, thought of as the independent variable. Analyze the relationship between the dependent and independent variables using graphs and tables, and relate these to the equation.
 Dependent variable – is a variable that changes because of the other variable or depends on the other variable
 Independent variable –is a variable that is not impacted by other variables
 Dependent and independent variables are very common in the real world
 Example: Most coaches will say that the longer a player practices a sport the better the player will be at the sport.
o The dependent variable is the player’s ability, as it relies on the length of a practice
o The independent variable is the number of hours the player practices, because the player’s ability does not
impact the amount of time the player practice
4 0
3 years ago
If f(x) = 2x2 – x,what is f(-6)?
lisov135 [29]

Answer:

your answer would be -58

7 0
3 years ago
What is the value of <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx2%7D%7By1%7D" id="TexFormula1" title="\frac{x2}{y1}" alt="\fra
matrenka [14]

Answer:

80

Step-by-step explanation:

Insert the values or x and y into the expression.

\frac{20^{2} }{5} = \frac{400}{5} = 80

7 0
2 years ago
Which number is not written in scientific notation??
DerKrebs [107]
The answer should be '0' because if you multiply anything times '0' it is still '0'.
3 0
3 years ago
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