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2 years ago

Please help me with this

Mathematics

1 answer:

notka56 [123]2 years ago

3 0

Answer:

D. complementarly

Step-by-step explanation:

Complementary angles add to 90°

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What is the number below that subtracted 7 from four times it multiplied and equals 1?

Dvinal [7]

Answer:

a.4

Step-by-step explanation:

because

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2 years ago

PLEASE HELP! GIVING OUT BRAINLIEST

cestrela7 [59]

a) Unit rate = 24 oz / 10lb = 2.4 oz / lb

This means that we need 2.4 oz of seasoning for every pound of crawfish

b) For 30 lbs....we need 30 * 2.4 = 72 oz of seasoning

c) With 36 oz of seasoning...we can cook 36 / 2.4 = 15 lbs of crawfish

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3 years ago

How do I solve for the missing numbers

Veronika [31]

Answer:

going from left to right: 200, 400, 800

Step-by-step explanation:

25 x 2 = 50

50 x 2 = 100

100 x 2 = 200

200 x 2 = 400

400 x 2 = 800

just follow the pattern

4 0

2 years ago

Read 2 more answers

A bus travels on an east-west highway connecting two cities A and B that are 100 miles apart. There are 2 services stations alon

melamori03 [73]

Answer:

51/4

Step-by-step explanation:

To begin with you have to understand what is the distribution of the random variable. If X represents the point where the bus breaks down. That is correct.

X~ Uniform(0,100)

Then the probability mass function is given as follows.

$f(x) = P(X=x) = 1/100 \,\,\,\, \text{if} \,\,\,\, 0 \leq x \leq 100\\f(x) = P(X=x) = 0 \,\,\,\, \text{otherwise}$

Now, imagine that the D represents the distance from the break down point to the nearest station. Think about this, the first service station is 20 meters away from city A, and the second station is located 70 meters away from city A then the mid point between 20 and 70 is (70+20)/2 = 45 then we can represent D as follows

$D(x) =\left\{ \begin{array}{ll} x & \mbox{if } 0\leq x \leq 20 \\ x-20 & \mbox{if } 20\leq x < 45\\ 70-x & \mbox{if } 45 \leq x \leq 70\\ x-70 & \mbox{if } 70 \leq x \leq 100\\ \end{array}\right.$

Now, as we said before X represents the random variable where the bus breaks down, then we form a new random variable $Y = D(X)$ , $Y$ is a random variable as well, remember that there is a theorem that says that

$E[Y] = E[D(X)] = \int\limits_{-\infty}^{\infty} D(x) f(x) \,\, dx$

Where $f(x)$ is the probability mass function of X. Using the information of our problem

$E[Y] = \int\limits_{-\infty}^{\infty} D(x)f(x) dx \\= \frac{1}{100} \bigg[ \int\limits_{0}^{20} x dx +\int\limits_{20}^{45} (x-20) dx +\int\limits_{45}^{70} (70-x) dx +\int\limits_{70}^{100} (x-70) dx \bigg]\\= \frac{51}{4} = 12.75$

3 0

3 years ago

The equation of (0, 3 (4, 2)

marusya05 [52]

Answer:

4x+y=12

Step-by-step explanation:

its the only one that is positive

and this is guess so don’t hate me if its wrong

hope this is right

5 0

2 years ago