3 years ago

Please help me solve for x

Mathematics

1 answer:

Setler79 [48]3 years ago

3 0

Answer:

no clue

Step-by-step explanation:

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Find b given that p(b,2) is equidistant from a(5,4) and b(2,5)

Oksana_A [137]

Hello :
PA = PB or PA² = PB²
(5-b)²+(4-2)² = (2-b)² + (5-2)²
(5-b)²+4 = (2-b)² + 9
25 -10b +b² + 4 = 4 -4b+b² +9
-6b = -16
b = 8/3

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3 years ago

Molly buys a pack of crisps and a carton of orange juice costing a total of 187 pence.

Usimov [2.4K]

Answer:

£1.87

Step-by-step explanation:

100 pennies is equal to a pound.

You divide the pennies to 100 and your answer will be converted to pounds.

187*100=1.87

£1.87

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3 years ago

(-13)+(-25).......-(-13)-(-25)

FinnZ [79.3K]

Answer:

Step-by-step explanation:

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3 years ago

Identify the equation of the circle that has its center at (-3, -4) and passes through the origin.

Allushta [10]

The equation of a circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - a center

r - a radius

We have:

The center (-3, -4) → h = -3 and k = -4.

The radius is equal the distance between the center of the circle and the origin.

The formula of a distance between two points:

$A(x_A,\ y_A),\ B(X_B,\ y_B)\\\\d_{AB}=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}$

Substitute

$(-3,\ -4),\ (0,\ 0)\\\\d=\sqrt{(0-(-3))^2+(0-(-4))^2}=\sqrt{9+16}=\sqrt{25}=5$

therefore r = 5.

Answer:

$(x-(-3))^2+(y-(-4))^2=5^2\\\\(x+3)^2+(y+4)^2=25$

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3 years ago

Which of these rate descriptions represent unit rates? Check all that apply. 1. 100 calories for 2 servings 2. $5 for every poun

hjlf

Answer:4

Step-by-step explanation:

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3 years ago

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