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mojhsa [17]
3 years ago
15

Solve for r. 7(r + 1) = 20.3

Mathematics
2 answers:
docker41 [41]3 years ago
4 0

Answer:

r = 1.9

Step-by-step explanation:

7r + 7 = 20.3

<u>     - 7      - 7  </u>

7r = 13.3

divide by 7

r = 1.9

Archy [21]3 years ago
4 0

Answer:

r = 1.9

Step-by-step explanation:

7(r + 1) = 20.3

<u>Multiply the parenthesis by 7:</u>

7r + 7 = 20.3

<u>Subtract 7 from each side:</u>

7r = 13.3

<u>Divide 13.3 by 7 to find r:</u>

r = 1.9

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Solve 2x + 4 &gt; 16<br><br>A. x &gt; 10<br><br>B. x &gt; 6<br><br>C. n &lt; 6<br><br>D. x &lt; 10​
Alexandra [31]

Answer:

The answer is B ( X>6 )

Step-by-step explanation:

2x+4= 16

2x = 16 - 4

2x = 12

x = 12/2

x= 6

x>6

8 0
3 years ago
Help with this question
snow_tiger [21]

Answer:

c

Step-by-step explanation:

just take out the brackets and add the like terms.

6 0
3 years ago
Read 2 more answers
A slide 4.4 m long makes an angle of 33 with the ground. How high is the top of the slide above the ground
svp [43]
Using the information given we will only need the Cosine and Sine equations.  i made a diagram (cant take a picture, in my study hall) labeled the sides of the triangle A, B, and C.  with C as the hypotenuse, A as the Opposite, and B as the adjacent (will not be needed as A is the height). i will be rounding the th nearest thousandth. 
Using Sine (SIN=Opposite/Hypotenuse), we can find A.

SIN(33)=A/4.4

SIN(33)≈.545

.545≈A/4.4

now multiply each side by 4.4 to get rid of the division

(.545*4.4)≈((A/4.4)4.4)

2.396≈A
 

so the answer would be that the slide is about 2.396 M high
5 0
3 years ago
Help please. Will put brainliest
Murrr4er [49]

Answer:

  • 17,750
  • 1737

Step-by-step explanation:

A suitable table or calculator is needed.

One standard deviation from the mean includes 68.27% of the total, so the number of bottles in the range 20 ± 0.16 ounces will be ...

  0.6827·26,000 = 17,750 . . . . . within 20 ± 0.16

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The number below 1.5 standard deviations below the mean is about 6.68%, so for the given sample size is expected to be ...

  0.66799·26,000 = 1737 . . . . . below 19.76

_____

<em>Comment on the first number</em>

The "empirical rule" tells you that 68% of the population is within 1 standard deviation (0.16 ounces) of the mean. When the number involved is expected to be expressed to 5 significant digits, your probability value needs better accuracy than that. To 6 digits, the value is 0.682689, which gives the same "rounded to the nearest integer" value as the one shown above.

4 0
3 years ago
Three swimmers competed in a 50 m freestyle race. A description of their swimming speeds is given. Order the
shtirl [24]
What are the descriptions???
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3 years ago
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