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iogann1982 [59]
3 years ago
14

The perimeter and steps of trapezoid ABCD

Mathematics
1 answer:
Talja [164]3 years ago
5 0
Notice the picture below

thus, add all sides, that's the perimeter of the trapezoid

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A sink has two faucets: one for hot water and one for cold water. The sink can be filled by a cold water faucet in 3 minutes. If
iragen [17]

Answer: 6\ minutes

Step-by-step explanation:

You can use the following formula:

\frac{T}{A}+\frac{T}{B}=1

You can say that "T" is the time (in minutes) for both faucets working together, "A" is the time (in minutes) for cold water faucet working alone and "B" is the time (in minutes) for hot water faucet working alone.

Based on the data given in the exercise, you can identify that:

T=2\\A=3

Therefore, substituting these values into the formula and solving for "B", you get that this is:

\frac{2}{3}+\frac{2}{B}=1\\\\\frac{2}{B}=1-\frac{2}{3}\\\\\frac{2}{B}=\frac{1}{3}\\\\2=\frac{1}{3}B\\\\2*3=B\\\\B=6

3 0
3 years ago
What is the domain and range of the graph below in interval notation? If union is needed, use Capital U. If infinity is needed u
elena55 [62]

Answer:

DOMAIN: (-\infty,1]\cup(2,\infty)

RANGE: (-\infty,\infty)

Step-by-step explanation:

The domain of a graph is the span of x-values covered by the graph, while the range of a graph is the span of y-values covered by the graph.

DOMAIN:

From the graph, we can see that the x-values covers everything to the left of x=1. Then we stop and then continue beginning at x=2 all the way until positive infinity.

However, note that at x=1, the dot is a closed circle while at x=2, the dot is an open circle. Thus, we will include x=1 into our domain but not include x=2 into our domain.

So, our domain is all values greater than or less than 1, and all values greater than 2.

In interval notation, this is:

(-\infty,1]\cup(2,\infty)

We use brackets with the 1 because we include it in our domain and we use parentheses with the 2 since we do not.

RANGE:

Looking at the graph, it seems that all y-values are covered. The part of the graph on the left covers all y-values less than or equal to 3, while the part of the graph on the right covers all y-values greater than -1. Thus, all y-values are covered.

Our range is all real numbers.

In interval notation, this is:

(-\infty,\infty)

5 0
2 years ago
An increase in the money supply that causes money to lose its purchasing power and prices to rise is known as______________
Aleksandr-060686 [28]
Inflation
<span>Inflation is the rate of increase in prices over a given period of time. Inflation is typically a broad measure, such as the overall increase in prices or the increase in the cost of living in a country</span>
6 0
3 years ago
Read 2 more answers
Can someone help me please and thank you very much
GaryK [48]

Answer:

7-(-3)= 10

7-3=4

59-(-1)= 60

-17-(6)= -11

Step-by-step explanation:

Hope this helps! :3

7 0
3 years ago
On a​ map, 1 inch equals 20 miles. Two cities are 8 inches apart on the map. What is the actual distance between the​ cities?
8_murik_8 [283]

If 1 inch equals 20miles then 8 inches equals 20 x 8 = 160 miles.

6 0
3 years ago
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