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3 years ago

Which solution is correct? Be sure to check for extraneous solutions.

Mathematics

2 answers:

zhuklara [117]3 years ago

7 0

I think it’s A or D

Dmitry_Shevchenko [17]3 years ago

4 0

It’s D, because 1x + 16x is 17x and 1+18 is 19 so your equation would change to 17x= 19 and if you divide 19 by 17 you’re not gonna get A,B, or C

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Mr. Jim had 9” x 8” piece of construction paper he cut out of 4 in square to make a card.what is the area of the paper mr Jim wi

svet-max [94.6K]

Isnt it 16? Im pretty sure its 16 if not then idk lol

7 0

3 years ago

The time spent studying in hours on a daily basis of nine different students was used to create the box plot shown above. Which

kotykmax [81]

Answer:

B.) 0, 0.5, 0.5, 0.5, 0.5, 0.5, 1, 1.5, 2.5

Step-by-step explanation:

From the box plot, we can obtain the 5 - Numbe summary and compare with the values in the options given :

Kindly note that each tick mark on the box plot is seperated by a unit of 0.25

Minimum = 0 (starting point of left whisker)

Lower quartile = 0.25 (start point of box)

Median = 0.5 (point in between the box)

Upper quartile = 1.25 (end point of the box)

Maximum = 2.5 (end point of right whisker)

In ascending order we have ;

0, 0.25, 0.5, 1.25, 2.5

The data which best matches the plot is 0, 0.5, 0.5, 0.5, 0.5, 0.5, 1, 1.5, 2.5

7 0

3 years ago

The population of the country was 314 million. What is the empirical probability of death by stroke during a single year

Marat540 [252]

Answer:

Empirical probability of deaths cause by stroke=0.004086

Empirical probability of deaths cause by kidney disease =0.001436

Death rate due to stroke is 4 times the death rate due to kidney disease.

Step-by-step explanation:

Consider the table attached in figure

No. of deaths cause by stroke = 128300

No. of deaths caused due t kidney disease = 45100

Total population = 314 x 10⁵

Formula to calculate empirical probability:

$P(A)=\frac{No.\, of\,\, times\,\, event\,\, occurs}{Total\,\, population}\\$

Empirical probability of deaths cause by stroke:

$P(A)=\frac{128300}{314\times 10^5}\\\\P(A)=0.004086$

Percentage of deaths cause by stroke =0.4%

Empirical probability of deaths cause by kidney disease:

$P(B)=\frac{45100}{314\times 10^5}\\\\P(B)=0.001436$

Percentage of deaths cause by kidney disease =0.1%

Ratio between deaths caused to stoke to deaths caused by kidney disease is 4:1 which means death rate due to stroke is 4 times the death rate due to kidney disease.

3 0

3 years ago

Angles question please help math

Natali [406]

The answer should be 62 °
180°-118°=62°
Subtract 118° from 180° because a parallel line is 180°. So you just have to find the other side of the line.
Hope this helps.

3 0

3 years ago

a marble is rolled down a ramp. The distance it travels is described by the formula d=490T^2 where d is the distance in centimet

Helga [31]

Answer:

The period when its more than halfway

= 2 < t ≤ 2.83 seconds ( to nearest hundredth).

Step-by-step explanation:

When is is halfway down the ramp d = 3920/2 = 1960 cm, so:

1960 = 490 t^2

t^2 = 1960/490 = 4

t = 2 seconds.

When it reaches the bottom d = 3920 :

t^2 = 3920/490 = 8

t = 2.83 seconds.

5 0

3 years ago