3 years ago

Two number cubes are rolled to determine how a token moves on a game board. The sides of

1 answer:

7 0

Answer: The mathematical expectation of Option A is 2.25. The mathematical expectation of Option B is 2.75. Option B offers a greater likelihood of advancing to the finish line.

Step-by-step explanation: I took the test.

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What is the value of m, if the equation my2+2y−4=0 has exactly one root?

stich3 [128]

Answer:

$m=\frac{-1}{4}$

Step-by-step explanation:

A quadratic equation has one root if the discriminant is 0.

That is we need $b^2-4ac=0$ for this particular question.

Compare the following to find $a,b, \text{ and } c$ :

$ax^2+bx+c=0$

$my^2+2y-4=0$

The variable $x$ is representative of the variable $y$ here.

$a=m$

$b=2$

$c=-4$

Plug in into $b^2-4ac=0$ :

$(2)^2-4(m)(-4)=0$

$4+16m=0$

Subtract 4 on both sides:

$16m=-4$

Divide both sides by 16:

$m=\frac{-4}{16}$

Reduce:

$m=\frac{-1}{4}$

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3 years ago

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Five more than the product of two and a number, decreased by seven;

PIT_PIT [208]

Answer:

First, write the expression

✔ 5 + 2a – 7

Second,

✔ substitute

8 in for the variable, a.

Third,

✔ simplify

by using

✔ order of operations

The answer is

✔ 14

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What is the HCF of 54

Gemiola [76]

The HCF is the Highest Common Factor of a number in this case 54. This is the highest number times another number which = 54. The HCF for 54 is 18.

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2 years ago

A survey,45% of respondents said they own a DVD player.Based on this information,predict how many of the 9,985 residents of Sadi

tatuchka [14]

Answer:

just breather just breathe

Step-by-step explanation:

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Encontrar la ecuacion paralela a y= -1/2x + 1, que pasa por el punto (2, -2). Graficar. Me ayudan con esto, POR FAVOR ❤️

Ymorist [56]

Hola! Este línea hace no intersecarese con el par do puntos dada. ¿Ver?
¡Lo Siento! Dejar yo sabo si yo lata ayuda además.

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