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2 years ago

What is 8+[4+(-9)] ?

Mathematics

1 answer:

fgiga [73]2 years ago

7 0

Answer:

Positive 3

Step-by-step explanation:

you have to add 4 and -9 first and you get -5 then you add that to positive 8 and get 3

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X² - y² = z²<br>Express y in terms of x and z.<br>

lord [1]

Answer:

y² = x² - z²

Step-by-step explanation:

x² - y² = z²

Transpose y the other side

x² - z² = y²

y² = x² - z²

8 0

2 years ago

Read 2 more answers

How to solve the area of a triangle

drek231 [11]

<h2>The area A of a triangle is given by the formula A=1/2*b*h where b is the base and h is the height of the triangle.</h2>

Step-by-step explanation:

<h2>The photo which is in the attachment is an example for your question. </h2>

<h2>hope this answer helps you!!</h2>

7 0

2 years ago

Logan can read at a rate of 2/3 page per minute. At that rate, how many pages can he read in 2 hours?

Anon25 [30]

Answer:

240- 360

Step-by-step explanation:

You have to find out how many minutes in an hour which is 60. Then multiply it by 2 for 2 hours to get 120. Then you multiply 2x120 to get 240. Then you multiply 3x120 to get 360.

I'm not sure if this is correct but this is how I would go about it. :)

7 0

2 years ago

If P (x,y) is the point on the unit circle defined by real number 0, then csc0=_.

dezoksy [38]

Answer:

cscθ = $\frac{1}{y}$

Step-by-step explanation:

cscθ = $\frac{Hypotenuse}{opposite}$

For a unit circle, radius = 1

hence, hypotenuse = 1

opposite = y

cscθ = $\frac{1}{y}$

7 0

2 years ago

A 13m ladder is leaning on a 12m wall.how far is the bottom of the ladder from the bottom wall?

brilliants [131]

Using the Pythagorean theorem:

Distance = √(13^2 - 12^2)

Distance = √(169 - 144)

Distance = √25

Distance = 5m

3 0

2 years ago