3 years ago

What does An-1 mean

Mathematics

1 answer:

Korolek [52]3 years ago

7 0

Answer:

its a formula

Step-by-step explanation:

an=a1+(n-1)d

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How do you find midpoint for geometry

igor_vitrenko [27]

Use this formula (x1+x2 over 2, y1+y2 over 2)

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2 years ago

Need some help with this question please

Serggg [28]

Answer:

$\frac{15}{17}$

Step-by-step explanation:

$\cos( \alpha ) = \frac{ad}{hip} \\ \\ \sin( \alpha ) = \frac{op}{hip}$

Pythagorean theorem

hip² = op² + ad²

17² = x² + 8²

x² = 17² - 8²

$x \: = \sqrt{{17}^{2} - {8}^{2} } \\ x = \sqrt{289 - 64} \\ x = \sqrt{225} \\ x = 15$

$\sin( \alpha ) = - \frac{15}{17}$

$\sin( - \alpha ) = \frac{15}{17}$

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3 years ago

0.25 l of milk every day.how much milk does he drink in 5 days?

tino4ka555 [31]

Answer:

1.25

Step-by-step explanation:

.25 x 5 = 1.25

pls mark brainliest!!

8 0

3 years ago

Read 2 more answers

Jason ha 2,057 stones in his collection.

Rashid [163]

Answer:

2560 stones

Step-by-step explanation:

Jason has 2057 stones

Paul's stones = Jason + 503

= 2057 + 503 = 2560

5 0

3 years ago

2. Fred has twice as much money

lys-0071 [83]

J=amount Jake has; F=amount Fred has=2J

J+F=$54

J+2J=$54

3J=$54

J=$18

ANSWER 1: Jake has $18.

F=2J=2($18)=$36 ANSWER 2: Fred has $36.

4 0

2 years ago