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iren [92.7K]
3 years ago
5

Help please!! Im trying to figure it out but it’s confusing

Mathematics
1 answer:
rjkz [21]3 years ago
4 0
Chicks blocking cool idi
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Suppose it is known that 10% of all people in Texas have a specific blood type. Suppose we take a random sample of 500 Texas res
Mila [183]

Answer:

a) 50

b) 6.71

c) 0.0681

Step-by-step explanation:

check the attached file below

5 0
3 years ago
Jeff worked 4 2/3 hours in the morning and 3 3/4 hours in the afternoon. How many total hours did he work today?
Rainbow [258]
If you would like to know how many total hours did Jeff work today, you can calculate this using the following steps:

4 2/3 hours in the morning + 3 3/4 hours in the afternoon = 4 2/3 + 3 3/4 = 14/3 + 15/4 = 56/12 + 45/12 = (56 + 45) / 12 = 101/12 = 8 5/12 hours

Jeff worked 8 5/12 hours in total.
7 0
2 years ago
Round 8.1074 to the nearest hundredth?
likoan [24]

Answer:

8.11

Step-by-step explanation:

You round it up because the 3rd number (thousandths) is 5 or above, and since it's 7 you round that up and drop off the last number.

4 0
3 years ago
Can someone show me how to solve either one of these?
Ludmilka [50]

Answer:

x = 2.3

Measure of arc XY = 76° ⇒ answer (D)

Step-by-step explanation:

∵ arc XY congruent to arc YZ

∴ XY = YZ ⇒ chords subtended by equal arcs are equal

∴ 3x = 6.9 ⇒ x = 6.9/3

∴ x = 2.3

In ΔOXY

∵ OX = OY radii

∴ m∠OXY = m∠OYX

∵ m∠OXY = 52°

∴ m∠OYX = 52°

∵ The sum of angles of a Δ = 180°

∴ m∠XOY = 180 - 2 × 52 = 76°

∵ ∠XOY is central angle subtended by arc XY

∴ The measure of arc XY = m∠XOY = 76°

7 0
3 years ago
What is the value of the correlation coefficient r of the data set?
Damm [24]

The correlation coefficient r of the data set is <em>-0.28</em>

6 0
2 years ago
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