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steposvetlana [31]
3 years ago
14

Find the product. 2 1/4⋅1 2/3 Write the answer as a mixed number.

Mathematics
2 answers:
Sati [7]3 years ago
7 0
The product is 3 and 3 4ths (3 3/4)
blagie [28]3 years ago
3 0

Convert to a mixed number:

15/4

Divide 15 by 4:

4 | 1 | 5

4 goes into 15 at most 3 times:

| | 3

4 | 1 | 5

- | 1 | 2

| | 3

Read off the results. The quotient is the number at the top and the remainder is the number at the bottom:

| | 3 | (quotient)

4 | 1 | 5 |

- | 1 | 2 |

| | 3 | (remainder)


The quotient of 15/4 is 3 with remainder 3, so:

Answer: | 3 3/4

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Given the function f(x) = 4^x - 1, explain and show how to find the average rate of change between x = 1 and x = 4.
soldier1979 [14.2K]

Answer:

84

Step-by-step explanation:

f(1)=4^1 - 1 = 3

f(4) = 4^4 - 1 = 255

rate of change = \frac{f(x_2)-f(x_1)}{x_2-x_1}

(255 - 3) / (4 - 1) = 252 / 3 = 84

3 0
3 years ago
uppose germination periods, in days, for grass seed are normally distributed and have a known population standard deviation of 2
natka813 [3]

Answer: 0.701

Step-by-step explanation:

Formula :  EBM =z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}} , where \alpha= significance level , \sigma = Population standard deviation, n= sample size.

As per given,  n= 22

\sigma = 2

Critical z- value for 90% confidence level : z_{\alpha/2}=1.645

Then,

 EBM =(1.645)\dfrac{2}{\sqrt{22}}\\\\=(1.645)\dfrac{2}{4.690416}\\\\\approx0.701

Hence ,  error bound (EBM) of the confidence interval with a 90% confidence level= ± 0.701

5 0
3 years ago
What will be the answer if we multiply a+b by ab
VARVARA [1.3K]

Step-by-step explanation:

(a+b)(ab)

{a}^{2} b + a  {b}^{2}

6 0
3 years ago
A chocolate manufacturer sells a 320g ar of chocolate for 50p. The size of the bar is reduced by 20%, and the price to 42p.
Contact [7]

Answer:

  less value

Step-by-step explanation:

To deterimine if value was improved or not, we need to compare the price reduction to the size reduction.

__

The reduction in price is ...

  ((new value)/(old value) -1) × 100%

  = (42/50 -1) × 100% = -16%

The size reduction of 20% is more than the price reduction of 16%, so the chocolate bar is <em>less value</em>.

_____

<em>Additional comment</em>

Compared to the original value, the new price to chocolate ratio is ...

  0.84/0.80 = 1.05

Effectively, the price was raised by 5%.

6 0
2 years ago
PLEASE ANSWER QUICK 2 MINUTES ON THE TIMER
snow_lady [41]
<h3>- - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - </h3>

➷ Turn into improper fractions:

8/3 + 5/3

Now just add them:

13/3 or 4 1/3

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

8 0
3 years ago
Read 2 more answers
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