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3 years ago

The marine life store would like to set up fish tanks that contain equal number

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

6 0

Ok that is nice sir 8 is a equal number

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rosijanka [135]

Answer:

D all the real numbers greater than or equal to -3

Step-by-step explanation:

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3 years ago

(calculus) please help!! will mark brainliest

Lyrx [107]

Answer:

Step-by-step explanation:

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2 years ago

In this diagram the big square is divided into 7 congruent small squares and two congruent triangles. The area of the shaded squ

Salsk061 [2.6K]

Since each square will have an area of 4 cm^2 because they are congruent, then let’s find the side length of them.

Square root of 4 is two

Each side is 2 cm. Since the unshaded triangle has 3 on the base and height, then it is same to assume that the triangle has a base of 6 cm (2 * 3) and a height of 6 cm.

The formula of the area of a triangle is:
1/2 ( base times height)

Let’s plug in some values

1/2(6 * 6)

Multiply

1/2 (36)

Divide

18

Since the triangles are also congruent, then the shaded side has the same area.

The shaded triangle has an area of 8 cm ^2

5 0

3 years ago

Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the dail

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

Daily temp(in F) Cakes sold

42 39

45 52

48 31

54 61

59 72

62 35

64 61

65 34

67 58

75 45

84 24

To find whether there is an association between these two let us find the correlation coefficient between these two variables.

r=-0.1975

Since |r|<0.5, correlation is weak.

Let us test the hypothesis r =0

H0:r=0

Ha:r not equals 0

Test statistic = $\frac{r\sqrt{n-2} }{\sqrt{1-r^2} } \\=\frac{-0.1975\sqrt{11-2} }{\sqrt{1-0.1975^2} }\\=\frac{-0.5625}{{0.9803} } \\=-0.5738$

p =0.298

Since p value >0.10, at 90% significance level we accept that there is no association.

6 0

3 years ago

Find the distance between the points. Give an exact answer

never [62]

Answer: $2\sqrt{10} \approx 6.325$

Step-by-step explanation:

$\sqrt{(-9-(-11))^2 +(-3-(-9))^2}=2\sqrt{10} \approx 6.325$

4 0

1 year ago