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3 years ago

What is the median of the data set?

Mathematics

1 answer:

Ne4ueva [31]3 years ago

7 0

Answer:

5 | 0 3 6 | 5 4 7 | 5 7 8 8 | 2 4 5 6 7 7 9 | 0 1 2 3 4 6 7 9 5 | 0 = 50 49 85 86 ' is not a valid one

Step-by-step explanation:

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Find the product and sum of the roots of the equation: 2x^2-9x-10=0

BabaBlast [244]

Answer:

<h3> sum of the roots: $x_1+x_2=4\frac12$ </h3><h3> product of the roots: $x_1x_2=-5$ </h3><h3> Step-by-step explanation:</h3>

$2x^2-9x-10=0\quad\implies\quad a=2\,,\ b=-9\,,\ c=-10$

$b^2-4ac=(-9)^2-4(2)(-10)=81+80=161>0$

From Vieta's formulas applied to quadratic polynomial we have:

if $b^2-4ac\geqslant0$ then

sum of roots: $x_1+x_2=-\dfrac ba=-\dfrac{-9}2=4\frac12$

product of the roots: $x_1x_2=\dfrac ca=\dfrac{-10}2=-5$

3 0

3 years ago

Please please answer and dont put any links :)

maxonik [38]

9x-6+6x-1=98
15x+7=98
15x=105
x=7
hope this helps :)

3 0

2 years ago

Sam had some money in his pocket, and he found another $6. 50 in his dresser drawer. He then had a total of $19. 75. Let p repre

Anastasy [175]

Answer:

Solving steps:

Question: Sam had some money in his pocket, and he found another $6. 50 in his dresser drawer. He then had a total of $19. 75. Let p represent the amount of money Sam had in his pocket. Which equation can you use to find the amount of money Sam had in his pocket? How much money did Sam have in his pocket?.

Find: How much money did Sam have in his pocket?.

Solution: Let the equation be

p represent amount of money

p represent amount of moneyt represent total

p represent amount of moneyt represent totalf represent money found

insert the values

add 19.75 from 6.50

THEREFORE THE AMOUNT OF MONEY SAM HAVE IN HIS POCKET IS ABOUT $26.25

8 0

2 years ago

If x = 9 units and h = 4 units, then what is the area of the triangle shown above?

Aleks04 [339]

Answer:

Step-by-step explanation:

The area of triangle is b*h/2

so it will be 36/2 which will be 18

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7 0

2 years ago

A tree struck by lightning in a storm breaks and falls over to form a triangle with the ground. The tip of the tree makes a 36°

liraira [26]

Answer: approximately 49 feets

Step-by-step explanation:

The diagram of the tree is shown in the attached photo. The tree fell with its tip forming an angle of 36 degrees with the ground. It forms a right angle triangle,ABC. Angle C is gotten by subtracting the sum of angle A and angle B from 180(sum of angles in a triangle is 180 degrees).

To determine the height of the tree, we will apply trigonometric ratio

Tan # = opposite/ adjacent

Where # = 36 degrees

Opposite = x feets

Adjacent = 25 feets

Tan 36 = x/25

x = 25tan36

x = 25 × 0.7265

x = 18.1625

Height of the tree from the ground to the point where it broke = x = 18.1625 meters.

The entire height of the tree would be the the length of the fallen side of the tree, y + 18.1625m

To get y, we will use Pythagoras theorem

y^2 = 25^2 + 18.1625^2

y^2 = 625 + 329.88

y^2 = 954.88

y = √954.88 = 30.9 meters

Height of the tree before falling was

18.1625+30.9 = 49.0625

The height of the tree was approximately 49 feets

5 0

3 years ago