2 years ago

Can anyone friend me please i need friends

Mathematics

1 answer:

svp [43]2 years ago

7 0

Answer:

Sure

Step-by-step explanation:

Remind code yogang123

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The speed of light in cold air is how many times the speed of sound in cold air?

Tju [1.3M]

Answer: B I think

Step-by-step explanation: hope it helps

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2 years ago

A clothing store donated a percent of every sale to hospitals. The total sales were $7,750 so the

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Step-by-step explanation:

310 /7759 x 100% = 4%

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3 years ago

The vertex of the parabola below is at the point (3,2) and the point (4,6) is on the parabola. What is the equation of the parab

nata0808 [166]

Answer:

$\large\boxed{y=4(x-3)^2+2\ \bold{vertex\ form}}\\\boxed{y=4x^2-24x+38\ \bold{standard\ form}}$

Step-by-step explanation:

The vertex form of a parabola:

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

(h, k) - vertex

We have the vertex at (3, 2) → h = 3 and k = 2.

Substitute:

$y=a(x-3)^2+2$

The point (4, 6) is on athe parabola. Put the coordinates of this point to the equation:

$6=a(4-3)^2+2$ subtract 2 from both sides

$6-2=a(1)^2+2-2$

$4=a\to a=4$

Finally:

$y=4(x-3)^2+2$ vertex form

use (a - b)² = a² - 2ab + b²

$y=4(x^2-6x+9)+2$ use the distributive property

$y=4x^2-24x+36+2$

$y=4x^2-24x+38$ standard form

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3 years ago

What algebraic propertiy am i using for 5(d + 1)

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Answer:

distributive

Step-by-step explanation:

you are distributing 5(d+1) into 5d +5

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3 years ago

Antonio is buying milk for a breakfast event. Each container of milk costs $3. He must spend $12 or less on milk for the event.

madreJ [45]

Answer:

3x ≤ 12 x≤4

Step-by-step explanation:

If Antonio has only $12 to spend on the milk, then the inequality sign should be less than or equal to. Since he can not go over 12. So from this you must figure out how many cartons he can buy. 12/3 = 4. So the maximum amount he can buy is 4 cartons.

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2 years ago