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sdas [7]
3 years ago
11

0.0025 cm << in scientific notation

Mathematics
1 answer:
Leno4ka [110]3 years ago
7 0
2.5 X 10^-3 is the scientific notation for 0.0025
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Keep getting this wrong please help!!!
photoshop1234 [79]

Answer:

14.13 in³

Step-by-step explanation:

Volume of a ball (sphere) is:

V = ⁴/₃ π r³

Circumference of a ball (circle) is:

C = 2π r

Use the circumference to find the radius.

9.42 in = 2π r

r = 1.50 in

Use the radius to find the volume:

V = ⁴/₃ π (1.50 in)³

V = 14.13 in³

4 0
3 years ago
Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit. What is th
zhenek [66]

Answer:

The percent error of Heather's calculation is <u>8%</u>.

Step-by-step explanation:

Given:

Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit.

Now, to find the percent error of Heather's calculation.

The temperature of coffee Heather measures = 133.4° F.

Coffee's actual temperature = 145° F.

So, to get the measurement in error we subtract the temperature of coffee Heather measures from coffee's actual temperature:

145-133.4=11.6\°.

Now, to get the percent error:

\frac{11.6}{145}\times 100

=\frac{1160}{145}

=8\%.

Therefore, the percent error of Heather's calculation is 8%.

5 0
3 years ago
The value of a collectible coin can be represented by the equation y = 2 x + 15, where x represents its age in years and y repre
Nuetrik [128]

Answer:

y = 53

Step-by-step explanation:

To get the answer, first put 19 in place of the x, and then times that iwth two, getting 38, you add that to 15. The answer is 53.

3 0
3 years ago
Read 2 more answers
Find a1 and d for an arithmetic sequence with these terms. a3=-8 and a7=32
Arte-miy333 [17]
We know that
the formula for the <span>arithmetic sequence is
</span><span>an = a1 + (n - 1)*d
where
a1  is the first term
n is the numbers of terms

for n=3   a3=-8
-8=a1+(3-1)*d-----> -8=a1+2*d-----> equation 1

for n=7   a7=32
-32=a1+(7-1)*d----> -32=a1+6*d----> equation 2

multiply equation 2 by -1-----> 32=-a1-6*d------> equation 3

add equation 1 and equation 3
</span>-8=a1+2*d
32=-a1-6*d
----------------
24=-4*d------> d=-6
-8=a1+2*(-6)    (substitute the value of d in equation 1)
-8=a1-12-----> a1=-8+12-----> a1=4

the answer is
a1=4
d=-6

<span>

</span>
4 0
3 years ago
The regular price of a bicycle was $330.00. The bicycle went on sale for 25% off the regular price. What was the sale price of t
Jobisdone [24]

Answer:

$247.50

Step-by-step explanation:

330 decrease 25% =

330 × (1 - 25%) = 330 × (1 - 0.25) = 247.5

4 0
3 years ago
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