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DanielleElmas [232]

3 years ago

11

The length of the base of a triangle is 8.5 cm, and its height is 5.4 cm. if the area of the triangle is half of the product of

its base length and height. The area of the triangle is

1 answer:

lawyer [7]3 years ago

7 0

Area = 1/2bh = 1/2 x 8.5 x 5.4 = 22.95 squared centimeter

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Solve when c=7 and d=3 <br>5c-3d+11

Studentka2010 [4]

Answer:

37

Step-by-step explanation:

5*7 is 35

3*3 is 9

35-9 is 26

26+11 is 37

6 0

3 years ago

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Lyme disease is an inflammatory disease that results in a skin rash and flulike symptoms. It is transmitted through the bite of

neonofarm [45]

Answer:

Step-by-step explanation:

Let cases of Lyme disease = x

x = 2, 1, 3, 4, 5, 1, 2, 1, 6, 5, 4, 1

$\sum x = 35$

$\sum x^2 = 139$

y = 0, 1, 2, 1, 3, 5, 2, 3, 3, 3, 1, 0

$\sum y = 24$

$\sum y^2 = 72$

$\sum xy = 55$

$S_{xx} = \sum x^2 - (\sum x)^2/n\\S_{xx} = 139 - 35^2/12\\S_{xx} = 36.92\\S_{yy} = \sum y^2 - (\sum y)^2/n\\S_{yy} = 72 - 24^2/12\\S_{yy} = 24$

$S_{xy} = \sum xy - ( \sum x \sum y)/n\\S_{xy} = 55 - (35*24)/12\\S_{xy} = -15$

b) Linear correlation between Lyme disease and drowning deaths.

$r = \frac{S_{xy}}{\sqrt{S_{xx}S_{yy}} }$

r = -15/ √(24*36.92)

r = -0.504

3 0

3 years ago

What is the circumference of a circle with a radius of 7 mm?

PSYCHO15rus [73]

Answer:

8 = 4 +$

Step-by-step explanation:

4 0

3 years ago

Hi i need help ill give brainlyest

liq [111]

Answer: 48.

Step-by-step explanation: The minimum value with box and whisker plots is at the very tip of the whisker at the left side. 48 is at the the tip of the left whisker. Therefore, that's your answer.

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6 0

2 years ago

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A triangle has two angles measuring 69 and 77. Determine the measure of the third angle b

igor_vitrenko [27]

Answer:

$m\angle B=34\°$

Step-by-step explanation:

Given measures of 2 angles of a triangle :

m∠A = 69°

m∠C = 79°

Find m∠B.

We know that sum of angles of a triangle =180°

So, we have

$m\angle A+m\angle B+m\angle C=180\°$

Substituting the vales of m∠A = 69° and m∠C = 79°

$69\°+m\angle B+77\°=180\°$

Adding like terms.

$m\angle B+146\°=180\°$

Subtracting both sides by 146°.

$m\angle B+146\°-146\°=180\°-146\°$

∴ $m\angle B=34\°$ (Answer)

5 0

3 years ago