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2 years ago

The sum of two numbers is 24 and ther difference is 2. What are the number?

Mathematics

2 answers:

maksim [4K]2 years ago

7 0

The numbers are 11 and 13

Anton [14]2 years ago

5 0

Answer:

sum means to add

11+13=24

13-11=2

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Answer:The answer to your question is cos 30° = \frac{ \sqrt{3} }{2}

Step-by-step explanation:

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3 years ago

10. If pointer 1 is spun and then pointer 2 is spun, determine the probability of landing on a color other than red on both spin

Brilliant_brown [7]

Answer:

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Step-by-step explanation:

1/8 is correct

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2 years ago

Is k=3 a reduction or enlargement (dilation)

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Answer:

It is an enlargement because k=3 is larger than 1. Anything that equals less than one (ex. k=0.25) would be a reduction.

Step-by-step explanation:

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3 years ago

A parabola can be drawn given a focus of

Volgvan

Answer:

$y=-\frac{1}{4}(x-2)^{2}+9$

Step-by-step explanation:

Any point on a given parabola is equidistant from focus and directrix.

Given:

Focus of the parabola is at $(2,8)$ .

Directrix of the parabola is $y=10$ .

Let $(x,y)$ be any point on the parabola. Then, from the definition of a parabola,

Distance of $(x,y)$ from focus = Distance of $(x,y)$ from directrix.

Therefore,

$\sqrt{(x-2)^{2}+(y-8)^{2}}=|y-10|$

Squaring both sides, we get

$(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9$

Hence, the equation of the parabola is $y=-\frac{1}{4}(x-2)^{2}+9$ .

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3 years ago

The sign on a clearance rack tells customers the price is 1/2 the lowest marked price. If an item is marked $9.98, how much will

Artyom0805 [142]

Answer:

4.99

Step-by-step explanation:

9.98 divide by 2

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3 years ago