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3 years ago

PLEASE HELPPPP IM SOOOOOOO CONFUSED ++YOU GET MANY POINTS++

Mathematics

1 answer:

Reil [10]3 years ago

6 0

Answer:

I DONT KNOW

Step-by-step explanation:

IF YOU GIMME BRAINLIEST I CAN GET MY QUESTIONS DONE AS WELL IM TRYNA PASS PLS MAKE ME BRAINLIEST BUDDY

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George ran 745.362 miles last year. To the nearest hundredth, about how

Hoochie [10]

Answer:745.36

Step-by-step explanation:

you would drop the 2 because it is less than 5 and if you drop the 2 then it will be right

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4 years ago

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Which type of lines is shown below?

Reil [10]

Answer:perpendicular

Step-by-step explanation:

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3 years ago

A group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets. If they randomly decide who will

Eddi Din [679]

Answer:

D. 0.821

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The combinations formula is important to solve this question:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes

The order is not important. For example, Elisa, Laura and Roze is the same outcome as Roze, Elisa and Laura. This is why we use the combinations formula.

At least 3 girls.

3 girls

3 girls from a set of 5 and 2 boys from a set of 3. So

$C_{5,3}*C_{3,2} = 30$

4 girls

4 girls from a set of 5 and 1 boy from a set of 3. So

$C_{5,4}*C_{3,1} = 15$

5 girls

5 girls from a set of 5

$C_{5,5} = 1$

$D = 30+15+1 = 46$

Total outcomes

5 from a set of 8. So

$T = C_{8,5} = 56$

Probability

$P = \frac{D}{T} = \frac{46}{56} = 0.821$

So the correct answer is:

D. 0.821

6 0

3 years ago

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Maggie took her dad out to lunch for his birthday. Their lunch cost $23, and the local sales tax is 9%. If Maggie left a 20% tip

kicyunya [14]

Answer:

29.67

Step-by-step explanation:

Here's the explanation if you need it,

First, miltiply 9% by 23 thats your tax

next, multiply 20% and 23

Then take all the values you got and add them all togeather hope that helps!

3 0

3 years ago

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Use the information in the diagram to determine the height of the tree to the nearest foot.

algol13

Answer:

The correct option is A. The height of tree is 60 ft.

Step-by-step explanation:

From the given figure it is noticed that the building is creating a right angle triangle from a point and the tree divides the hypotenuse and base in two equal part.

According to midpoint theorem of triangle: In a triangle, if a line segment connecting the midpoints of two sides, then the line is parallel to third side. The length of line segment is half of the length of third side.

Using midpoint theorem of triangle, we can say that the length of tree is half of the building.

$Tree=\frac{1}{2}\times Building$

$Tree=\frac{1}{2}\times 120$

$Tree=60$

Therefore correct option is A. The height of tree is 60 ft.

5 0

3 years ago