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3 years ago

Which of the following points are solutions to the system of inequalities

Mathematics

1 answer:

Leno4ka [110]3 years ago

3 0

D
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Jackson is at a collectible fair.He has exactly 8$ and will purchase a collectible card for 5$.What percent of his money will he

makkiz [27]

Answer:

62.5% or 63%

Step-by-step explanation:

He has $8. To find the percent of money that he spent on the purchase you put the amount spent over the total amount.

In this case, he spent $5. You would put that $5 over the $8, 5/8. When you divide, you get 0.625. To get a percent, you would multiply this number by 100. You end up with 62.5, or 63 if you round up.

5 0

3 years ago

Find x. A. 4/6 B. 6 c. 4√3 D.3/2

lubasha [3.4K]

The answer is b sorry if I’m incorrect though

7 0

3 years ago

The Wanting Recognition (WR) Scale provides a quantitative measure of a person's level of need for approval and sensitivity to s

levacccp [35]

Answer:

99% of the confidence level of the mean WR score for all convicted drug dealers

(37.4544, 40.5456)

Step-by-step explanation:

Step(i):-

Given that the sample size 'n' = 100

Given that the mean of the sample(x⁻) = 39

Given a standard deviation of the sample (σ) = 6

Level of significance = 0.01 or 99%

Step(ii):-

99% of the confidence level of the mean WR score for all convicted drug dealers

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } ,x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} })$

$(39 -2.576 \frac{6}{\sqrt{100} } ,39 + 2.576 \frac{6}{\sqrt{100} })$

(39 - 1.5456 , 39+1.5456)

(37.4544, 40.5456)

Final answer:-

99% of the confidence level of the mean WR score for all convicted drug dealers

(37.4544, 40.5456)

8 0

3 years ago

Which type of association does the scatter plot show?

Oksana_A [137]

Answer:

non linear

Step-by-step explanation:

the graph is showing more of a parabola than a linear line

8 0

2 years ago

What is the slant height x of this square pyramid?

Inessa05 [86]

1) What is the slant height x of this square pyramid? Express your answer in radical form

sin 60=x/4--------> x=4*sin 60------> 4*(√3/2)-------> 2 √3 m

the answer Part 1) is 2 √3 m

2) The base of a regular pyramid is a hexagon. What is the area of the base of the pyramid?
[area of the base}=[area of hexagon]
[area of hexagon]=6*[area of triangle]

area of triangle
sin 60=a/14-------> a=(√3/2)*14-------> a=7√3 cm
cos 60=(b/2)/14--------> (b/2)=cos 60*14-----> (1/2)*14---------> (b/2)=7
base of triangle=2*7--------> b=14 cm

[area of triangle]=14*7√3 /2--------> 49√3 cm²
so
[area of hexagon]=6*[49√3]--------> 294√3 cm²

7 0

3 years ago