Answer:
A canary's heart beats around 1,000 times per minute or 16.67 times per second. A canary is a very small bird whose heart beats more than twelve times faster than yours.
While a bat's heart beats between 200 to 1,000 times per minute. That means that while the bat is flying, its heart beats at the same rate as a canary's. But when the bat is resting, its heart beats is reduced by 5 times to "only" 200 beats per minute or 3.33 beats per second.
Answer:
Each eraser costs $2.00
Step-by-step explanation:
<u>Step 1: Make an equation</u>
4 + 5a = 14
4 = shows that cost for one magazine
5a = shows that 5 erasers cost a each
14 = total price
<u>Step 2: Solve for a</u>
Subtract 4 from both sides: 4 + 5a - 4 = 14 - 4
Divide by 5 from both sides: 5a / 5 = 10 / 5
Answer: a = 2
Answer:
Step-by-step explanation
The volume of a cylinder is given by
V=πr^ 2h
Diamter is 10 ft
Radius = 10/2
Radius= 5
π= 3.142
h = 17ft
Volume = 3.142 * 5^2*17
Volume = 3.142* 25* 17
volume= 1335.35ft^3
Step-by-step explanation:
step 1. a diagram is important and can be uploaded. you will get a quicker answer with a diagram
step 2. triangle RST is a right triangle so we can use trigonometry to find <S
step 3. the adjacent side of <S is ST and the hypotenuse is RS so we will use cos
step 4. cosS = adj/hyp = ST/RS = 2.7/4.9
step 5. <S = 56.6° using inverse cos.
Answer:If we want to expand the brackets, the fraction would be:
Explanation:First, we can note that:
w² + w - 20 can be factorized as follows:
w² + w - 20 = (w+5)(w-4)
The given expression already has a (w+5) in the denominator, therefore, all we need to do is multiply the denominator by (w-4)
Since we want the new fraction to be equivalent to the original one, therefore, as we multiply the denominator by (w-4), we will also multiply the numerator by (w-4) to ensure that the value of the fraction is unchanged.
Based on the above, the new fraction would be:
If we want to expand the brackets, the fraction would be:
Hope this helps :)