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marissa [1.9K]
3 years ago
8

What is a reciprocal?

Mathematics
2 answers:
frozen [14]3 years ago
6 0
The reciprocal is the fraction flipped. so the reciprocal of 1/2 is 2/1. It's used when dividing fractions to make it multiplication, so you use the reciprocal for the second fraction.
Jlenok [28]3 years ago
5 0
<span> A number which when multiplied by x yields the multiplicative identity 1.</span>
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WILL GIVE BRAINLIEST What is the perimeter of the track, in meters? Use π = 3.14 and round to the nearest hundredth of a meter.
Ivenika [448]

Answer:

Perimeter = 317 m

Step-by-step explanation:

Given track is a composite figure having two semicircles and one rectangle.

Perimeter of the given track = Circumference of two semicircles + 2(length of the rectangle)

Circumference of one semicircle = πr  [where 'r' = radius of the semicircle]

                                                       = 25π

                                                       = 25 × 3.14

                                                       = 78.5 m

Length of the rectangle = 80 m

Perimeter of the track = 2(78.5) + 2(80)

                                     = 157 + 160

                                     = 317 m

Therefore, perimeter of the track = 317 m

7 0
3 years ago
Can anyone help me find the unknown side length in this right triangle.
Maru [420]

Answer:

9sqrd= 81

12sprd= 144

144+81= 225

\sqrt{225}= 15

so c=15

ps. use Pythagoras to help you.  

7 0
2 years ago
Read 2 more answers
Spiral Review Overnight, the temperature decreased by 17 1/2 °F. If the temperature began at -3.6 °F, what is the current temper
Alex

Answer: -21.1°F

Step-by-step explanation:

-3.6 - 17.5 = -21.1°F

7 0
3 years ago
1962÷18 whats the answer show working​
nadezda [96]

Answer:

109

Step-by-step explanation:

Download pdf
7 0
2 years ago
Bekah is looking to find a close condo to the university campus. She learns that the mean rent for a condo is \$1900, and the st
saul85 [17]

Answer:

68.268%

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = $1900

σ is the population standard deviation = $200

For x = $1700

z = $1700 - $1900/$200

z = -1

Probability value from Z-Table:

P(x= 1700) = 0.15866

For x = $2100

z = $2100 - $1900/$200

= 1

Probability value from Z-Table:

P(x = 2100) = 0.84134

The probabilty of the population that has a rent price between $1700 and $2100

P(x = 2100) - P(x = 1700)

0.84134 - 0.15866

= 0.68268

Converting to percentage

= 0.68268 × 100%

= 68.268%

The percentage of the population that has a rent price between $1700 and $2100 is 68.268%

3 0
3 years ago
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