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3 years ago

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Mathematics

1 answer:

algol133 years ago

5 0

The mistake he made was that he did not consider units of measurement while comparing the lengths

He has to convert the both quantities into the same unit to compare the lengths either centimeters to meters or meters to centimeters

Step-by-step explanation:

Length of desk = 1 meter

Henry's name tag = 8 cm

Henry says that his name tag is 7 cm longer than the desk. The mistake he made was that he did not compare the units of both quantities. He just subtracted 1 from 8 and got 7. Meter is a larger unit and centimeter is a smaller unit. In order to compare the lengths of the desk and his name tag the units have to be same.

Hence

The mistake he made was that he did not consider units of measurement while comparing the lengths

He has to convert the both quantities into the same unit to compare the lengths either centimeters to meters or meters to centimeters

Keywords: Measurement

Learn more about measurement at:

#LearnwithBrainly

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A bicycle store costs $3150 per month to operate. The store pays an average of $65 per bike. The average selling price of each

OLga [1]

Answer: 35

Step-by-step explanation:

-3150M-65b+155b

-3150m+92b

3150/92= 34.23913043 so about 35

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3 years ago

William scored 24.5 points out of 30 on his math assignment. His teacher subtracted 5 points for being late. How many points is

Svetradugi [14.3K]

Answer:

William was 0.5 points away from a perfect score.

Step-by-step explanation:

If the teacher didn't subtract 5 points, he would have 24.5 + 5 = 29.5 points.

30 - 29.5 = 0.5

William was 0.5 points away from a perfect score.

8 0

3 years ago

What kinetic energy has a 4kg shootput thrown with a velocity of 12m/s

Tamiku [17]

Answer:

288J

Step-by-step explanation:

recall the formula for kinetic energy

KE = (1/2) mv²

where m is the mass (= 4kg) and v is the velocity(=12 m/s)

hence

KE = (1/2) (4)(12)² = 288J

7 0

3 years ago

Read 2 more answers

In circle o,find the value of x, rounded to the nearest tenth.

Gemiola [76]

Answer:

$\huge\boxed{x \approx 5.4}$

Step-by-step explanation:

We can break down this problem by first realizing different parts of the circle.

The line which is 8 units long is a chord of the circle.
The line that is 3.6 is almost the radius of the circle
The line that x sits on is the radius.

With this, we can find out if we find the radius of the circle, we have our answer.

We should also note that the angle formed by the 3.6 units long line and the chord is a right angle.

What we need is a way to find the radius of the circle. This will get us x. The radius of a circle will be the length of any line that starts from point O and ends at the circle edge.

If we draw a line connecting the end of the 3.6 line at point O to the end of the 8 unit long chord, we get a triangle! (Image attached for reference).

We can solve for the hypotenuse using the Pythagorean Theorem. This theorem states that:

$\displaystyle a^2 + b^2 = c^2$

Since we know one side is 3.6, we can use that as A. The second side will be 4 since the 3.6 line lies directly in the center of the chord = 8/2 = 4!

$3.6^2 + 4^2 = c^2$
$12.96+16=c^2$
$28.96=c^2$
$\sqrt{28.96} = c$
$5.4 \approx c$

Therefore, since this is the radius of the circle (also the hypotenuse), this can be said for any line that comes from point O onto the edge of the circle.

The line X does just that. Therefore, the value of x is also 5.4.

Hope this helped!

4 0

3 years ago

Someone please help!!

pantera1 [17]

The answer I got was 2,423,000 million square miles. If there is a choice that says that then it’s the answer. If not, I’m probably wrong.

Hope this helps!

7 0

3 years ago

Read 2 more answers