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2 years ago

A pelican starts at 60 feet above sea level. It descends 60 feet to catch a fish. How do I explain this?

2 answers:

8 0

Answer: 60 + (-60) = 0
explanation: The Pelican who is 60 feet above sea level is represented by +60.Now, he is trying to catch the fish which is at 0 level, means Sea level because the pelican is trying to catch the fish by descending 60 feet

scoray [572]2 years ago

6 0

Answer:

The answer is 0

Step-by-step explanation:

Because its original height was 60 feet above sea level but it descends to 60 feet to capture fish so 60 - 60 = 0

You might be interested in

At what angle does a diffraction grating produce a second-order maximum for light having a first-order maximum at 20.0 degrees?

hichkok12 [17]

Answer:

At 43.2°.

Step-by-step explanation:

To find the angle we need to use the following equation:

$d*sin(\theta) = m\lambda$

Where:

d: is the separation of the grating

m: is the order of the maximum

λ: is the wavelength

θ: is the angle

At the first-order maximum (m=1) at 20.0 degrees we have:

$\frac{\lambda}{d} = \frac{sin(\theta)}{m} = \frac{sin(20.0)}{1} = 0.342$

Now, to produce a second-order maximum (m=2) the angle must be:

$sin(\theta) = \frac{\lambda}{d}*m$

$\theta = arcsin(\frac{\lambda}{d}*m) = arcsin(0.342*2) = 43.2 ^{\circ}$

Therefore, the diffraction grating will produce a second-order maximum for the light at 43.2°.

I hope it helps you!

6 0

2 years ago

Which drawing shows two lines that intersect at Point a ax, tab, two lines ab, straight x a.

leonid [27]

The drawing which shows two lines that intersect at Point, A is as represented in Choice 1: Top-left corner.

Discussion:

In geometry, a line or straight line was introduced by ancient mathematicians to represent straight objects with negligible width and depth.

Lines are therefore an idealization of such objects, which are often described in terms of two points or referred to using a single letter.

Ultimately, The drawing which shows two lines that intersect at Point, A are as represented in Choice 1: Top-left corner.

Read more on intersection of lines:

brainly.com/question/9047265

5 0

2 years ago

Compare and order the decimals from least to greatest. 1.02 1.009 0.89 1.1 1.017

RideAnS [48]

0.89, 1.009, 1.017, 1.02, 1.1 is the correct order

6 0

3 years ago

Read 2 more answers

Determine the unknown angles in the diagram above. Please help!

Nana76 [90]

a and 143 are supplementary. So a + 143 = 180

a + 143 = 180 Subtract 143 from both sides.

a = 180 - 143

a = 37

b and 143 are vertically opposite angles and are equal

b = 143 degrees.

Interior angles on the same side of a transversal for parallel lines are supplementary

b + c = 180

143 + c = 180

c = 37

c + d + 85 = 180 degrees

37 + d + 85 = 180

d + 122 = 180

d = 180 - 122

d = 58

e = c They are vertically opposite.

e =37

All triangles have 180 degrees.

e + f + 90 = 180 degrees.

37 + f + 90 = 180

f + 127 = 180

f = 180 - 127

f = 53

G and 48 are opposite 2 equal sides. So G and 48 are equal

G = 48

h + 48 + 48 = 180

h + 96 = 180

h = 84

K and H are supplementary

K + H = 180

k + 84 = 180

k = 95

m+ k + d = 180

M + 95 + 58 = 180

M + 143 = 180

M = 37

the top angle is 2*m and 2m is bisected. You are using the m on the left.

P + 85 + M = 180

P + 85 + 37 = 180

P + 122 = 180

p = 180 - 122

p = 58

r + p are supplementary.

r + p = 180

r + 58 = 180

r = 180 - 58

r = 122

s + r + c + b = 360 All quadrilaterals have 360 degrees.

s + 122 + 37 + 143 = 360

s + 302= 360

s = 360 - 302

s = 58

6 0

3 years ago

is a stockbroker. Earns % commission each week. Last week, sold $ worth of stocks. How much did make last week in commission

GenaCL600 [577]

Answer:

a. $583

b. $30,316

Step-by-step explanation:

a. Commission last week;

= 5,300 * 11%

= $583

b. Commission in 2011 assuming weekly earnings of $583.

= 583 * 52 weeks

= $30,316

8 0

2 years ago