3 years ago

I need help asap!!!!!

Mathematics

1 answer:

ycow [4]3 years ago

5 0

It equals to 2 because 3 times -4 is -12 and -12 divided by -6 is 2

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I need major help I do not understand this someone please help

galben [10]

Answer:

Well the sides have to be even so

2x+4=3x-10

so x would have to be equal to 14

4 0

3 years ago

From midnight to 6:00 am, the temperature rose 8°C. At 6:00 am, the temperature was − 20 ° -20°C. What was the temperature at mi

tekilochka [14]

Answer: -28 degrees Celsius

Step-by-step explanation:

-20 - 8 = -28

4 0

3 years ago

A random variable x takes four possible values, 0, 2, a, and b, where a and b are unknown numbers. if pr[x = 0] = 0.2, pr[x=2] =

Alexus [3.1K]

$\displaystyle\sum_{x\in\{0,2,a,b\}}\mathbb P(X=x)=1$
$\mathbb P(X=0)+\mathbb P(X=2)+\mathbb P(X=a)+\mathbb P(X=b)=1$
$0.2+0.4+0.3+\mathbb P(X=b)=1$
$\implies\mathbb P(X=b)=0.1$

$\mathbb E(X)=\displaystyle\sum_{x\in\{0,2,a,b\}}x\mathbb P(X=x)=2.8$
$0\mathbb P(X=0)+2\mathbb P(X=2)+a\mathbb P(X=a)+b\mathbb P(X=b)=2.8$
$0.8+0.3a+0.1b=2.8$
$0.3a+0.1b=2$

$a+b=6\implies0.3a+0.1b=0.2a+0.1(6)=2$
$0.2a+0.6=2\implies0.2a=1.4\implies a=7$

7 0

3 years ago

An angle measures 38° more than the measure of its complementary angle. What is the measure of each angle?

seropon [69]

Answer: 38° and 52°

Steps:
x + 38° = 90°
x = 90° - 38°
x = 52°

90° - 52° = 38°

6 0

3 years ago

How do you solve for #23

Bingel [31]

5 is you answer because absolute value is the distance on a number line from 0

8 0

3 years ago