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8090 [49]
3 years ago
12

According to the National Oceanic and Atmospheric Administration, the blue whale is the largest animal on Earth. Blue whales wei

gh
approximately 3×10^5 pounds. Narwhals, which are also a type of whale, weigh approximately 2×10^3 pounds.
Mathematics
1 answer:
Ugo [173]3 years ago
5 0

Answer:

According to the passage, whales weight 300,000 pounds on average. Narwhales weigh 2,000 pounds on average.

Step-by-step explanation:

Since the question is extremely vague, I'll just answer what's the weight of whales and the weight of narwhals.

According to the paragraph, blue whales weigh 3×10^{5} pounds.

This is what we call scientific notation. You could solve it normally, or you could use a faster method.

Scientific notation states that the first number that you see, the three, is the first part of the answer. The exponent on the number of zero's that there is.

That means that the answer to 3×10^{5} you get 300,000.

Let's do the same thing to Narwhales.

2×10^{3} is 2,000.

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A circle is divided into 18 equal parts how many degrees is the angel measure for part?
ira [324]
Well knowing that it is divided into 18 EQUAL parts, and the fact that the total number of degrees in a circle is 360.

To find out the number of degrees in each part take 360 and divide that value by 18.

That is the angle measure for each particular part.
8 0
3 years ago
Identify the slope and y intercept of 4x + 2y = 8
Sergeu [11.5K]

Answer:

The slope is -2

and the 'y' intercept point is 4

Step-by-step explanation:

First lets start by writing the given equation in slope-intercept form, by isolating 'y' variable

y=4-2x

Since in this form, the slope of the line is the coefficient of 'x'. our slope is -2

and the 'y' intercept point is 4

4 0
3 years ago
Solve for X <br> A) -6<br> C) 12<br> E) 9<br> B) 8<br> D) 3
spayn [35]

Answer:

In my thinking the answer is 9.

8 0
3 years ago
The central angle of an arc measures 120° The radius of the circle measures 3 cm what is the area of the sector to the nearest h
jeka57 [31]

Answer:

The area of the sector should be 9.42cm^2 .

Step-by-step explanation:

-The formula for finding the area of a sector:

A = \frac{Arc}{360} \pi r^2

-Next use the arc measure and the radius in order to solve and get the answer:

A = \frac{120\textdegree}{360\textdegree}\pi 3^2

-Solve:

A = \frac{120\textdegree}{360\textdegree}\pi 3^2

A = \frac{120\textdegree}{360\textdegree}\pi \times3^2

A = \frac{1}{3} \pi \times 3^2

A = \frac{1}{3} \pi \times 9

A = 3\pi \approx 9.424

-Round to the nearest hundredth:

A \approx 9.42

8 0
3 years ago
Need math help please. Match the y-coordinates with their corresponding pairs of x-coordinates on the unit circle.
Andrei [34K]

Answer:

No. 1 of tiles goes to No. 3 of pairs

No. 2 of tiles goes to No. 4 of pairs

No. 3 of tiles goes to No. 2 of pairs

No. 4 of tiles goes to No. 1 of pairs

Step-by-step explanation:

We are given the y co-ordinates in the box named 'TILES' and have to match the corresponding x co-ordinates from the box named "PAIRS' such that they satisfy the unit circle.

i.e. the pair (x,y) satisfies x^{2} +y^{2} =1.

Now, we substitute the values of 'x' and 'y' provided in 'TILES' and 'PAIRS' correspondingly in the above equation of the unit circle.

We get that, the following co-ordinates form the pairs for the unit circle.

i.e. x = ±\frac{2\sqrt{10} }{11} and y = \frac{9}{11}

x = ±\frac{4\sqrt{6} }{11} and y = \frac{5}{11}

x = ±\frac{1}{\sqrt{11}} and y = \frac{\sqrt{110}}{11}

x = ±\frac{6\sqrt{2}}{11} and y = \frac{7}{11}

7 0
3 years ago
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