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LUCKY_DIMON [66]
3 years ago
9

Help me rotate these angles please.thank you

Mathematics
1 answer:
mixas84 [53]3 years ago
5 0
You need tracing paper and pencil

You first trace the triangles you see in the question and follow the rotation instructions.

For example, question 5 says to rotate 90 clockwise

so trace triangle on tracing paper, hold pencil on one point of the corners and rotate the tracing paper clockwise 90.

then you have a new triangle which you can draw out with a ruler.

Hope this somehow made sense, Its hard to give instructions in writing :)
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Dale travels from city A to city B to city C and back to city A. Each city is exactly 120 miles from the other two. His average
Ivahew [28]

Answer:

average\ speed = 36\ mi/hr

Step-by-step explanation:

Given:

Each city is exactly 120 miles from the other two.

Average rate from city A to city B = 60 mi/hr

Average rate from city B to city C = 40 mi/hr

Average rate from city c to city A = 24 mi/hr

We need to find the Dale's average rate for the entire trip.

Solution:

First we find the total time and total distance by following way.

Time taken to travel from A to B = \frac{Distance}{Speed} = \frac{120}{60}= 2\ hr

Time taken to travel from B to C = \frac{Distance}{Speed} = \frac{120}{40}= 3\ hr

Time taken to travel from C to A = \frac{Distance}{Speed} = \frac{120}{24}= 5\ hr

So, total time taken = 2+3+5=10\ hr

Total distance =  120 + 120 + 120 = 360 miles

Using average speed formula.

average\ speed = \frac{Total\ distance}{Total\ time\ taken}

average\ speed = \frac{360}{10}

average\ speed = 36\ mi/hr

Therefore, the average rate for the entire trip average\ speed = 36\ mi/hr

8 0
3 years ago
What number must you add to complete the square? x^2+14x=-7
viktelen [127]
To complete the square of a polynomial, use the term "(b / 2) ^ 2".

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49.

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4 years ago
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vodomira [7]

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2

Step-by-step explanation:


7 0
4 years ago
ABC ~ ADE AC = 4, AE = 7, AD = 10, what is the length of AB? 1 3/7 2 1/2 5 5/7 17 1/2
Butoxors [25]

If the polygon or the figures are similar then it is known that the ratios of their corresponding sides and angles are proportional. In this item we can derive an equation that is,

<span>                        AC/AE = AD/AB</span>

Substituting the known values,

<span>                      4/7 = 10/AB</span>

<span>AB from the equation is equal to 70/4 or equal to 17 ½. </span>

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4 years ago
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torisob [31]

Answer:

6x

Step-by-step explanation:

Given that a function f(x) is given as

y=f(x) = 3x^2

A) f(x+ \Delta x) = 3((x+ \Delta x)^2=3(x^2+2x \Delta x+\Delta x^2)\\f(x) = 3x^2\\f(x+ \Delta x) -f(x) = 6x  \Delta x +\Delta x^2

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6x

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