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3 years ago

Javier bought 48 sport cards at a yard sale.Of the cards 3\8 were basketball cards.How many cards were baseball cards?

Mathematics

2 answers:

Viefleur [7K]3 years ago

7 0

18 cards. 48÷8= 6 6×3=18

ella [17]3 years ago

5 0

5/8 because 3/8 is just the basketball cards and 3+5=8 :D

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A vertical parabola goes through (1,-2), (-3, 10), and (4, 31). Use matrices to

Elenna [48]

Answer:

D = 1/2 , E = -1/2 , F = -5/2

Step-by-step explanation:

vertical parabola : ( 1,-2), ( -3, 10 ), (4, 31 )

General form ; $x^2 + y^2 + Dx + Ey + F = 0$

( 1 ,-2 ) = x1, y1

( -3, 10 ) = x2, y2

( 4, 31 ) = x3, y3

hence :

$y1 = ax_{1} ^2 + bx_{1} + c$

$y2 = ax_{2} ^2 + bx_{2} + c$

$y3 = ax_{3} ^2 + bx_{3} + c$

attached below is the detailed solution required

D = 1/2 , E = -1/2 , F = -5/2

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3 years ago

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Answer:

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2 years ago

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galina1969 [7]

For twice a number we can use the variable x
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I believe this is correct although I'm not 100% sure

3 0

3 years ago

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Gennadij [26K]

Answer:

A.height of the rectangle

Step-by-step explanation:

I say tbh what does the color gotta do with the equation. red and blue= spiderman. And if u think abt it you can already see the colors we js aren't sure of the height.

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2 years ago

A sound wave is traveling at 6,420m/s and has a frequency of 600Hz. What is the wavelength?

GaryK [48]

Answer:

10.7 m

Step-by-step explanation:

Given that,

The speed of a sound wave, v = 6,420 m/s

The frequency of the wave, f = 600 Hz

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$v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{6420}{600}\\\\\lambda=10.7\ m$

So, the wavelength of the sound wave is equal to 10.7 m.

4 0

3 years ago