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3 years ago

Please someone help me, if you don't know the answer don't comment at all.

Mathematics

2 answers:

yKpoI14uk [10]3 years ago

6 0

Answer:

Step-by-step explanation:

I'm ASSUMING this goes with a photo supplied in another question.

Part E reflection across the x axis leaves the x value identical but negates the y value (x, y) → (x, -y)

Part I translating 6 up and 1 left subtracts one from the x value and adds 6 to the y value (x, y) → (x - 1, y + 6)

Part K Chanel has the correct sequence as following her instructions maps each point on triangle ABC perfectly to triangle DEF

Preston was close but he either needed to rotate about the origin 180° then translate up 6 and left 1, or rotate 180° about the point (-½, -½) and translate up 7.

I think the quickest conversion is to rotate 180° about the point (-½, 3)

horsena [70]3 years ago

4 0

Answer:

Part E reflection across the x axis leaves the x value identical but negates the y value (x, y) → (x, -y)

Part I translating 6 up and 1 left subtracts one from the x value and adds 6 to the y value (x, y) → (x - 1, y + 6)

Part K Chanel has the correct sequence as following her instructions maps each point on triangle ABC perfectly to triangle DEF

Preston was close but he either needed to rotate about the origin 180° then translate up 6 and left 1, or rotate 180° about the point (-½, -½) and translate up 7.

I think the quickest conversion is to rotate 180° about the point (-½, 3)

Step-by-step explanation:

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Stephanie, Mike , and Howard gather blackberries for their grandmother. Stephanie picks 4 3/8 pounds, Mike picks 2.5 pounds, and

Zarrin [17]

Answer:B

Step-by-step explanation:

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3 years ago

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A COFFEE POT HOLDS 5 QUART OF COFFEE. HOW MUCH IS THIS IN CUPS.

son4ous [18]

Answer:

20 cups

Step-by-step explanation:

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4 years ago

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Reil [10]

Answer:

x = 5.00 cm

Step-by-step explanation:

• area of the rectangle = $x$ x $(x + 1)$

= $x^2 + x$

• area of the circle = π r²

= $\frac{22}{7}$ x $(x + 2)^2$

= $\frac{22}{7}$ x $(x^2 + 4x + 4)$

∴ $x^2 + x$ + $\frac{22}{7}$ x $(x^2 + 4x + 4) = 184$

⇒ $x^2 + x$ + $\frac{22}{7} x^2 \space\ + \space\ \frac{88}{7} x \space\ + \space\ \frac{88}{7} = 184$

⇒ $\frac{29}{7}x^2 \space\ + \space\ \frac{95}{7}x \space\ - \frac{1200}{7} = 0$

• Using quadratic formula, where

a = $\frac{29}{7}$

b = $\frac{95}{7}$

c = $\frac{-1200}{7}$ ,

$x=\frac{-b \pm \sqrt{b^2-4c}}{2}$

$x = \frac{-\frac{95}{7}\pm \sqrt{(\frac{95}{7})^2 - 4(\frac{29}{7})(\frac{-1200}{7} ) } }{2(\frac{29}{7})}$

$x = 5.00 \space\ \space\ \space\ or \space\ \space\ \space\ x = -8.28$

As length (x) cannot be a negative number,

x = 5.00 cm

7 0

2 years ago

A 30-meter high building sits on top of a hill. The angles of elevation of the top and bottom of the building from the same spot

Vladimir79 [104]

<h2>A 30-meter high building sits on top of a 151.52 meter high hill.</h2>

Explanation:

According to the given data, we can draw a figure (Please refer the attachment below)

Building's height = 30 meter

Angle of elevation from a spot to the top of the building = 55 degrees

Angle of elevation from the spot to the top of the building = 50 degrees

To find the height of the hill, we need to use the formula,

$tan \,\theta = \frac{opposite \,side}{adjacent \,side}$

then, $tan \,50 = \frac{h}{x}$

$\Rightarrow x = \frac{h}{tan 50}$

$\Rightarrow x = \frac{h}{1.192}$ .... (1)

Similarly, $tan \,55 = \frac{30+h}{x}$

$\Rightarrow x = \frac{30+h}{tan 55}$

$\Rightarrow x = \frac{30+h}{1.192}$ .... (2)

(1) = (2) becomes

$\frac{h}{1.192} = \frac{30+h}{1.428}$

[tex]\Rightarrow [tex] 1.428h = (30 + h)1.192

1.428h = 35.76 + 1.192h

1.428h - 1.192h = 35.76

0.236h = 35.76

h = 151.52 meter

Therefore, the hill highs 151.52 meter.

4 0

3 years ago

Help please!!!!!!!!!!!!!!!!!!

NemiM [27]

Note: As you missed to mention the coordinate graph. After a little research I was able to find the graph and based on that graph I am answering your questions, which anyways would help you clear your concepts.

Question # 4

To Determine:

Part a) What are the coordinates (x, y) of a point halfway from City Hall to the hospital?

Part b) Is there more than one possibility?

Explanation:

Part a)

As the the location of coordinates of City Hall is (0, 0).
The hospital has the location at the point (-6, -4)

If we analyze the graph carefully, we observe that there is 10 blocks distance between City Hall to the Hospital. And when you travel by taxi, and cover the 5 blocks, it means you would have covered the halfway distance between City Hall to the hospital.

So, one of the coordinate (x, y) of a point halfway from City Hall to the hospital is (-1, -4). It could have also been (-4, -1). As both coordinates are indicating the half way distance from City Hall to the hospital, depending upon which route a car driver chooses.

Part b)

Yes, there is more than one possibility that there could be multiple coordinates (x, y) of a point halfway from City Hall to the hospital, as it entirely depends upon which route the taxi driver chooses to travel. For example, there is a total 10 block distance from City Hall to the hospital, and if a taxi covers 5 blocks, it means it has covered the halfway distance.

And to cover 5 block distance, there are multiple routes available a taxi driver can choose to travel. In short, the location of the coordinates of a point halfway from City Hall to the hospital is a function of the preference of the route chosen by taxi driver.

So, the points (-1, -4) and (-4, -1) are both the coordinates of a halfway from City Hall to the hospital.

 Question # 5

To Determine:

Part a) Suppose you traveled by helicopter. What are the coordinates of a point halfway from City Hall to the hospital? How can a helicopter travel differently?

Part b) Is there more than one possibility?

Explanation:

Part a)

When we are travelling by helicopter, we may have the flexibility of choosing the shortest possible distance as a car driver may not get this flexibility due to certain reasons like terrain, or a road blockage etc.

So, the coordinates of the point of shortest possible halfway distance from City Hall to the hospital is (-3, -2).

Part b)

Please remember, if we are travelling by helicopter and the Pilot chooses a shortest possible route, then there is only one way for the shortest possible route as there is only one halfway point.

Keywords: distance, shortest distance, coordinate, halfway distance

Learn more about distance from brainly.com/question/11592733

#learnwithBrainly

4 0

3 years ago