3 years ago

9. What is (2x2 - 5x – 7) - (7x2 + 3) simplified?

Mathematics

1 answer:

AysviL [449]3 years ago

6 0

Answer:

The answer for this is -5x-20

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X=<br> A) 80<br> B) 90<br> C) 100

Sunny_sXe [5.5K]

X= A) 80 I believe you double 120 to 240 and divide by the 4 quarters.

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4 years ago

Read 2 more answers

If the random variable x has a uniform distribution between 40 and 50, then p(35 ≤ x ≤ 45) is:

Dvinal [7]

$\mathbb P(35\le X\le45)=\mathbb P(X\le45)-\mathbb P(X\le35)=F_X(45)-F_X(35)$

where $F_X(x)$ is the cumulative distribution function of $X$ . We have probability density given by

$f_X(x)=\begin{cases}\frac1{10}&\text{for }40\le x\le50\\\\0&\text{otherwise}\end{cases}$

which yields the CDF

$F_X(x)=\begin{cases}0&\text{for }x$

and so

$\mathbb P(35\le X\le45)=\dfrac{45-40}{10}-0=\dfrac12$

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4 years ago

Convert 0xBAD into a decimal number

a_sh-v [17]

$0\text{xBAD}=11(16)^2+10(16)^1+13(16)^0=2816+160+13=2989_{10}$

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3 years ago

A bag contains 150 marbles. Some are blue, and the rest are white. There are 21 blue marbles for every 4 white marbles. How many

Soloha48 [4]

Answer:

126

Step-by-step explanation:

21 + 4 = 25 (blue plus white marbles)

150/25 = 6 (all the marbles divided by how many we know are white and blue)

21 x 6 = 126

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3 years ago

3x=12-2y write in standard form

klio [65]

Standard form is y = mx + b.

So,

3x = 12 - 2y
+ 2y + 2y

3x + 2y = 12
-3x - 3x

2y = -3x + 12
--- ---- ----
2 2 2

y = (-3/2)x + 6

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4 years ago