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3 years ago

The length of an insect’s wing, drawn at a scale of 50:1, is 15 cm. What is the actual length of the wing?

Mathematics

2 answers:

Mkey [24]3 years ago

7 0

50*15cm=750cm
750cm long

Lina20 [59]3 years ago

4 0

I was reading the list of upcoming business meetings in a weekly email from The Seattle Times, when a meeting announcement caught my attention. The presenter was going to talk on a topic that interests me--the steps in growing one's business. I often weigh the advantages of getting bigger vs. staying small as a business, so I thought I would register for her talk. But I wanted to know more about the presenter, so I clicked the link to her blog. That's when things went wrong. Her latest blog entry was one huge paragraph 41 lines long. Can you imagine her 325 words in one big block? You don't have to--I have created a 325-word block of text here. I forced myself to read her paragraph. Hiding in it was some good information, but that info could not undo the negative impression. If that big, bad paragraph represents the woman's communication skills, I would be much better off finding another resource.I was reading the list of upcoming business meetings in a weekly email from The Seattle Times, when a meeting announcement caught my attention. The presenter was going to talk on a topic that interests me--the steps in growing one's business. I often weigh the advantages of getting bigger vs. staying small as a business, so I thought I would register for her talk. But I wanted to know more about the presenter, so I clicked the link to her blog. That's when things went wrong. Her latest blog entry was one huge paragraph 41 lines long. Can you imagine her 325 words in one big block? You don't have to--I have created a 325-word block of text here I forced myself to read her paragraph. Hiding in it was some good information, but that info could not undo the negative impression. If that big, bad paragraph represents the woman's communication skills, I would be much better off finding another resource. - See more at: http://www.businesswritingblog.com/business_writing/2008/01/the-big-bad-par.html#sthash.TLK9W4WX.dpuf

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LOTS OF POINTS GIVING BRAINLIEST I NEED HELP PLEASEE

Sidana [21]

Answer:

Segment EF: y = -x + 8

Segment BC: y = -x + 2

Step-by-step explanation:

Given the two similar right triangles, ΔABC and ΔDEF, for which we must determine the slope-intercept form of the side of ΔDEF that is parallel to segment BC.

Upon observing the given diagram, we can infer the following corresponding sides:

$\displaystyle\mathsf{\overline{BC}\:\: and\:\:\overline{EF}}$

$\displaystyle\mathsf{\overline{BA}\:\: and\:\:\overline{ED}}$

$\displaystyle\mathsf{\overline{AC}\:\: and\:\:\overline{DF}}$

We must determine the slope of segment BC from ΔABC, which corresponds to segment EF from ΔDEF.

<h2>Slope of Segment BC:</h2>

In order to solve for the slope of segment BC, we can use the following slope formula:

$\displaystyle\mathsf{Slope\:(m)\:=\:\frac{y_2 \:-\:y_1}{x_2 \:-\:x_1}} }$

Use the following coordinates from the given diagram:

Point B: (x₁, y₁) = (-2, 4)

Point C: (x₂, y₂) = ( 1, 1 )

Substitute these values into the slope formula:

$\displaystyle\mathsf{Slope\:(m)\:=\:\frac{y_2 \:-\:y_1}{x_2 \:-\:x_1}}\:=\:\frac{1\:-\:4}{1\:-\:(-2)}\:=\:\frac{-3}{1\:+\:2}\:=\:\frac{-3}{3}\:=\:-1}$

<h2>Slope of Segment EF:</h2>

Similar to how we determined the slope of segment BC, we will use the coordinates of points E and F from ΔDEF to find its slope:

Point E: (x₁, y₁) = (4, 4)

Point F: (x₂, y₂) = (6, 2)

Substitute these values into the slope formula:

$\displaystyle\mathsf{Slope\:(m)\:=\:\frac{y_2 \:-\:y_1}{x_2 \:-\:x_1}}\:=\:\frac{2\:-\:4}{6\:-\:4}\:=\:\frac{-2}{2}\:=\:-1}$

Our calculations show that segment BC and EF have the same slope of -1. In geometry, we know that two nonvertical lines are <u>parallel</u> if and only if they have the same slope.

Since segments BC and EF have the same slope, then it means that $\displaystyle\mathsf{\overline{BC}\:\: | |\:\:\overline{EF}}$ .

<h2>Slope-intercept form:</h2><h3><u>Segment BC:</u></h3>

The <u>y-intercept</u> is the point on the graph where it crosses the y-axis. Thus, it is the value of "y" when x = 0.

Using the slope of segment BC, m = -1, and the coordinates of point C, (1, 1), substitute these values into the <u>slope-intercept form</u> (y = mx + b) to solve for the y-intercept, <em>b. </em>

y = mx + b

1 = -1( 1 ) + b

1 = -1 + b

Add 1 to both sides to isolate b:

1 + 1 = -1 + 1 + b

2 = b

Hence, the <u><em>y-intercept</em></u> of segment BC is: <em>b</em> = 2.

Therefore, the linear equation in <u>slope-intercept form of segment BC</u> is:

⇒ y = -x + 2.

<h3><u /></h3><h3><u>Segment EF:</u></h3>

Using the slope of segment EF, <em>m</em> = -1, and the coordinates of point E, (4, 4), substitute these values into the <u>slope-intercept form</u> to solve for the y-intercept, <em>b. </em>

y = mx + b

4 = -1( 4 ) + b

4 = -4 + b

Add 4 to both sides to isolate b:

4 + 4 = -4 + 4 + b

8 = b

Hence, the <u><em>y-intercept</em></u> of segment BC is: <em>b</em> = 8.

Therefore, the linear equation in <u>slope-intercept form of segment EF</u> is:

⇒ y = -x + 8.

8 0

3 years ago

What is the interquartile range of the following data set? 3,8, 14, 19, 22, 29, 33, 37, 43, 49. A. 26 B. 23 C. 19 D. 18

Fynjy0 [20]

Answer:

I think the answer is B.23

8 0

3 years ago

Add and round to the correct number of significant digits: 13.8 + 60 70 73 73.8 74

LenaWriter [7]

When you add all the number together you get 364.6 round it = 365
Because 6 is > 5

4 0

3 years ago

Write the following fractions in word. 3/4, 1/5, 3/4, 1 3/5.. please help me

Alik [6]

Answer:

"In word" as in word form?

3/4 = three fourths

1/5 = one fifth

3/4 = three fourths (again?)

1 3/5 = one and three fifths

4 0

3 years ago

HELP.Will give brainlest

sesenic [268]

Answer:

$25

Step-by-step explanation:

5×5=25

25×5= 125

<em>is this what you are looking for?</em>

4 0

3 years ago