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Alexeev081 [22]

3 years ago

12

Do this and you’ll get 25 points

2 answers:

MrRissso [65]3 years ago

6 0

Answer:

1

Step-by-step explanation:

m= (y-y1)/(x-x1)

Points are (-10, -20) and (1, -9)

m= (-20+9)/(-10-1)= (-11)/(-11)= 1

m=1 to replace ? mark

vodka [1.7K]3 years ago

6 0

Answer:

y = -11/9x + 70/9

therefore:

Gradient = -11/9

Y intercept = 70/9

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Two-fifths of the girls signed up to play softball. An equal number of girls signed up to play pitcher, infield, and outfield. W

Natali [406]

Okay so lets look at this.

So we have 5/5 girls.

2/5 of them are playing softball. An equal number of girls signed up to play pitcher, infield, and outfield. This means that each one is 1/3.

So out of 2/5 of the girls, there is 1/3 of the 2/5 that signed up to play outfield.

The answer can be solved with multiplication of fractions.

2/5 * 1/3 is 2/15. So 2/15 of the girls in the school signed up to play outfield.

Answer: 2/15 or 0.133

3 0

4 years ago

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Find the value of given expression

bulgar [2K]

Answer:

√{121×11×11}=√(11²×11²)=±11²=±121

4 0

3 years ago

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Prove that sin(Π÷14)sin(3Π÷14)sin(5Π÷14)=2

Oxana [17]

Answer:

The correct prove will be:

$sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14})$ $= \frac{1}{8}$

Step-by-step explanation:

$sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14})$

Multiply and Divide by $2cos(\frac{\pi }{14})$

= $\frac{2sin(\frac{\pi }{14})cos(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14})}{2cos(\frac{\pi }{14})}$

⇒ Let $\frac{\pi }{14}$ = Ф and 7Ф = $\frac{\pi }{2}$

= sin2Ф sin3Ф sin5Ф ÷ 2cosФ

= 1/2(2sin2Фsin5Ф)sin3Ф ÷ 2cosФ

= (cos3Ф - cos7Ф) sin3Ф ÷ 4cosФ

= 1/2(2cos3Ф sin3Ф) ÷ 4cosФ ∵cos7Ф = 0

= sin6Ф ÷ 8cosФ

= sin(7Ф - Ф) ÷ 8cosФ

= (sin7ФcosФ - cos7ФsinФ) ÷ 8cosФ ∵sin7Ф = 1

= cosФ ÷ 8cosФ

= 1/8

Hence, The correct prove will be:

$sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14})$ $= \frac{1}{8}$

Keywords: prove, sinФ, cosФ

Learn more about trigonometric functions from brainly.com/question/7331447

#learnwithBrainly

4 0

3 years ago

The Pool Fun Company has learned that, by pricing a newly released Fun Noodle at $ 2 comma sales will reach 9000 Fun Noodles pe

Nataliya [291]

Answer:

x[9000] x y[2] > x[5000] x y[5]

Hoped this helped, have a nice day!

4 0

3 years ago

Which of the following statements is false?

Irina18 [472]

Answer:

6.5<6.05, this one is false

Step-by-step explanation:

look at the Statement and the numbers, it is false through my calculation

7 0

3 years ago