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2 years ago

How to solve this 4×5-45÷9

Mathematics

2 answers:

Doss [256]2 years ago

7 0

Answer:

Step-by-step explanation:

the answer is 15

Ilia_Sergeevich [38]2 years ago

7 0

Answer: 4x5-45÷9=15

Step-by-step explanation:

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David is having his birthday party at a water park.the park charges $150 plus $10 per guest.the total cost of the party y can be

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The slope (m) represents the cost per person.

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when a pair of shoes is sold at 12.5% discount, the selling price is 78.75. Find the original price of the pair of shoes and the

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3 years ago

If (-1,4) and (3,-2) are end points of diameter of the circle, then the equation of the circle is

Volgvan

Answer:

If you've more doubts you can ask :)

Step-by-step explanation:

If the centre of a circle is (a, b) and radius r, then the equation of the circle is :

$(x - x)^2 + (y-b)^2 = r^2$

First we will find the centre, (a , b):

$a = \frac{3+(-1)}{2} = \frac{2}{2} = 1\\\\b = \frac{-2 + 4}{2} = \frac{2}{2} = 1$

Find radius:

$Radius, r = \frac{Diameter}{2}$

Diameter is the distance between (-1, 4) and (3, -2)

$diameter = \sqrt{(x_2 - x_1)^2 +(y_2-y_1)^2} \\\\$

$= \sqrt{(3-(-1)^2 + (-2-4)^2} \\\\=\sqrt{16 + 36}\\\\=\sqrt{52}\\\\=\sqrt{4 \times 13}\\\\=2\sqrt{13} \ units$

Therefore , $r = \frac{2 \times \sqrt{13} }{2} = \sqrt{13} \ units$

Equation of the circle is :

$(x - 1)^2 +(y-1)^2 = 13$

4 0

3 years ago

F(x) = x2 + 9, g(x) = *square root of* x + 8, find g(f(x))

ICE Princess25 [194]

Answer:

g(f(x)) = √(x^2 +17)

Step-by-step explanation:

For ...

f(x) = x^2 +9

g(x) = √(x +8)

The definition of g(f(x)) is ...

g(f(x)) = g(x^2 +9) = √((x^2 +9) +8)

g(f(x)) = √(x^2 +17)

6 0

3 years ago

DUE IN 10 MINUTES. PLEASE HELP. WOULD BE VERY THANKFUL

Andrej [43]

Answer:

1. y = 36°

a = 9.7

2. No.. wire H to P/Q is not a tangent

Step-by-step explanation:

see below

7 0

2 years ago