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3 years ago

Please help me!! I need help

Mathematics

2 answers:

Shkiper50 [21]3 years ago

8 0

Answer:

Since they're asking you to find the missing sides "y" and "x" here's what you need to do....

Step-by-step explanation:

1) This is the 45-45-90 Triangle.

2) y = 20 becasue this is an isocelese triangle - meaning a triangle that has 2 sides of equal lengths!

3) in order to find x (which is the hyptoneus) you have to do

$\sqrt{2}$ * leg (use on of the legs)

= $20\sqrt{2}$

also I think 45 degrees is there just to throw you off. And I'm pretty positive this is the correct answer, and i'm 100% sure that y = 20 is correct!

Setler [38]3 years ago

7 0

Answer:

c=l/--a^2+b^2=l/--45^2+20^2≈49.24429

Step-by-step explanation:

l/-- mean square root

^ means squared/ exponent

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Farmers often plant crops in circular areas because one if the most efficient watering systems for crops provides water in a cir

Nesterboy [21]

Answer:

Step-by-step explanation: Scale Factor is defined as a ratio between the actual figure to that of the other figure.

And as it is clearly given in the question that 2 cm of length corresponds to 100 meters so the ratio comes out to be 1:50.

So the scale factor of the actual farm to the photo is A that is 1 to 50.

8 0

3 years ago

What is that is the derivative of

katovenus [111]

Answer:

see explanation

Step-by-step explanation:

differentiate using the power rule.

$\frac{d}{dx}$ ( a $x^{n}$ ) = na $x^{n-1}$ , thus

$\frac{d}{dx}$ (x² - x + 3 ) = 2x - 1

x = 5 → 2(5) - 1 = 10 - 1 = 9

To find the value of x for minimum , equate $\frac{d}{dx}$ to zero

2x - 1 = 0 , then

2x = 1 and

x = $\frac{1}{2}$

3 0

3 years ago

10 = |n| + 2

stealth61 [152]

Answer:

8 or -8

Step-by-step explanation:

Absolute value of n means that if n is a negative number, |-n| = n, so both 8 or -8 could be true here.

8 0

3 years ago

A football team gains 3 yards on the first play ,loses 6 yards on the second play,loses 4 yards on the third play , and gains 5

galben [10]

Net yardage=3-6-4+5=-2

So the team lost 2 yards in four plays...

5 0

3 years ago

Read 2 more answers

A quiz has 1 true-false question and 2 multiple choice questions that each have 4 answers what is the probability that someone q

Anit [1.1K]

1 true and false question = 1 / 2 chances
2 multiple choice question = 2/8
1/2 + 2/8 =
4/8 + 2/8 = 6/8.

6/8 = 3/4

you have a 75% chance of getting all 3 answers correct and getting a 100% on the quiz

hope this helps :D

8 0

3 years ago