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atroni [7]
3 years ago
6

- 21 = y" alt=" {x}^{2} + 10 - 21 = y" align="absmiddle" class="latex-formula">
Can someone explains me how to resolve?​
Mathematics
2 answers:
myrzilka [38]3 years ago
5 0

Answer:

Step-by-step explanation:

dmitriy555 [2]3 years ago
5 0

Answer:

x²+10-21=y

x²-11=y

x²=11+y

if you put value y =-11 than it can be resolve

x²=11-11

x²=0

x=0

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A quality-control engineer samples 100 items manufactured by a certain process, and finds that 15 of them are defective. True or
goldenfox [79]

Answer: b) The probability that an item produced by this process is defective is likely to be close to 0.15, but not exactly equal to 0.15.

Step-by-step explanation:

Given that:

Number of samples = 100

Number of defective samples = 15

Proportion =number defective samples / total samples

P = 15 / 100 = 0.15

Hence, the probability that an item produces is defective is 0.15.

However, due to sampling Variations, the probability will be corrected for these variations. Hence, probability that an item produced by this process is defective is likely to be close to 0.15, but not exactly equal to 0.15.

5 0
3 years ago
2a-2,2a+2,6a-2<br>ans. <br>1) -3 <br>2) -2 <br>3) 2 <br>4) 3​
Gala2k [10]

Answer:

the answer is 3 because 2a-2a+6a-2+2+2

2a-2a=0

6a-2+2+2=

6a-6

a= 3

8 0
3 years ago
Every school day Dylan writes the school bus 4.79 mi round trip between home and school estimate the total distance Dylan wrote
Jet001 [13]

Answer:

100.59\ \text{miles}

Step-by-step explanation:

The distance traveled by Dylan every day is 4.79 miles

Let the number of days he went to school be x

Distance traveled by Dylan in a month is given by

y=4.79x

Total number of days Dylan went to school last month is 21

The distance traveled by Dylan last month was y=4.79\times 21=100.59\ \text{miles}

6 0
3 years ago
How can I solve this problem?
HACTEHA [7]

Answer:

25*pi or

78.5 square units.

Step-by-step explanation:

If there was no shaded area, the area of the circle would be pi * r^2

r = 10

Area = pi * 10^2

Area = 100 * pi

Since there is a shaded area, the shaded part looks to be 1/4 of the whole. There's no indication of what it actually is, but 1/4 should be close enough.

Area_shade = 1/4 (100*pi)

Area_shade = 25 * pi

That's one answer.

Another is 25 * 3.14 = 78.5 square units

7 0
3 years ago
Simplify 10^-8 .
Elden [556K]

Answer:

B

Step-by-step explanation:

7 0
2 years ago
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