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Veronika [31]
3 years ago
11

4.2x10^6+2.25x10^5+2.8x10^6

Mathematics
1 answer:
zimovet [89]3 years ago
4 0
The answer I’m guessing could be 7225000
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What's ur guys' mbti im tired
Vinvika [58]

Answer:

i ndo0nt nwjrefilaqwebriuhgyowafh vnh3e4iyufrawgevtc87ayimcawhuebovaetyert

Step-by-step explanation:

6 0
3 years ago
For his statistics project, Martin recorded the weights of some apples.
nikdorinn [45]

Answer:

50 grams

Step-by-step explanation:

You simply subtract 70 from 120, and get 50.

4 0
2 years ago
Ms.hernandez has $100 to spend on parking and admission to the zoo. The parking will cost $7, and admission tickets will cost $1
Mice21 [21]
The answer is Ms Hernandez can bring up to 6 people to the zoo.

x - <span> the number of people that she can bring to the zoo
</span><span>The parking will cost $7: a = 7
</span><span>Admission tickets will cost $15.50 per person: b = 15.50x
She can spend on parking and admission tickets </span><span>$100:
a + b </span>≤<span> 100

a = 7
b = 15.50x

7 + 15.50x </span>≤<span> 100
15.50x </span>≤<span> 100 - 7
15.50x </span>≤<span> 93
x </span>≤<span> 93 / 15.50
x </span>≤ 6
5 0
3 years ago
Read 2 more answers
A screening examination was performed on 250 persons for Factor X, which is found in disease Y. A definitive diagnosis for disea
ZanzabumX [31]

Answer:

The specificity of this test is expressed as:________

70%.

Step-by-step explanation:

a) Data and Calculations:

TEST RESULTS       Disease Present    Disease Absent      Total

Positive for Factor X      40                            60                    100

Negative for Factor X    10                            140                   150

Total                              50                           200                  250

Negative for X and Disease Absent = 140/200 * 100

= 0.7 * 100

= 70%

b) The specificity refers to the percentage of people who test negative for a specific disease among a group of people who do not have the disease. No test is 100% specific because some people who do not have the disease X will test positive for it (false positive).  Therefore, we are testing for the true negative, that the 140 people who tested out of the 200 people who do not have the disease.

8 0
3 years ago
What is the value of x
il63 [147K]
Take 180 and subtract the sum of the two given angle, the answer is 62
6 0
3 years ago
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