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3 years ago

I’ll give brainlist to correct answers

Mathematics

2 answers:

hoa [83]3 years ago

3 0

Answer:stop stealing points

Step-by-step explanation:

maxonik [38]3 years ago

3 0

Answer:

a) 1

b) 7

c) -3

Step-by-step explanation:

"Adding" and "up" indicate a positive integer.

"Down" indicates a negative integer.

I'm going to assume that a) refers to one plate.

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Rewrite 1/6 book over 2/3 hours as a unit rate

erma4kov [3.2K]

Answer:

B. 1/9 books/hour

Step-by-step explanation:

Divide the biggest by the smallest to get unit rate

EXAPLE; 2/3/1/6

Question on how to find the biggest fraction:

Ask yourself, would you rather have 1/6th of a pie? or 2/3rds of a pie?

To be honest you'd wanna have 2/3rds.

So that is your biggest fraction now divide it by the smallest, 1/6th then you have your answer of 1/9 books/hour

Hope this helps! Have a nice day! Please consider making me Brainliest!

8 0

3 years ago

In geometry what is the purpose of sin and cos?

Rasek [7]

Sin cos and tan are basically just functions that relate an angle with a ratio of two sides in a right triangle. Sin is equal to the side opposite the angle that you are conducting the functions on over the hypotenuse which is the longest side in the triangle. Cos is adjacent over hypotenuse.

5 0

3 years ago

Read 2 more answers

John can service a television and a cable box in one hour. It took him four hours yesterday to service two televisions and ten c

yaroslaw [1]

It's 15 minutes, because it takes 1 hour for a television and a cable box, so you take 2 hours from the 4 hours, from the 2 televisions and the 2 cable boxes, so now you got 2 hours left and 8 cable boxes, so 2 hours is 120 minutes, and 8÷120=15

3 0

3 years ago

St Question 1 Calculate the derivative of y = f(x) = 3 x(4x + 7) Your answer:

kondor19780726 [428]

Answer:

$\frac{dy}{dx} = 24 x + 21$

Step-by-step explanation:

Explanation:-

Given that the function

y = f(x) = 3 x ( 4 x + 7)

y = 3 x ( 4 x + 7)

y = 12 x² + 21 x ..(i)

Differentiating equation (i) with respective to 'x' , we get

$\frac{dy}{dx} = 12 (2x) +21 (1)$

$\frac{dy}{dx} = 24 x + 21$

6 0

3 years ago

An HP laser printer is advertised to print text documents at a speed of 18 ppm (pages per minute). The manufacturer tells you th

anastassius [24]

Answer:

0.288

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .