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3 years ago

5×(3-2)=, what is itin expanded form, Explain

Mathematics

1 answer:

Juli2301 [7.4K]3 years ago

5 0

I hope this helps you

5×(3-2)=5×1=5

or

5×3+5×(-2)=15+(-10)=15-10=5

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How do you solve this equation 19−4c=17

Elena L [17]

Answer: Whatever you do to one side, you do the same operation on the other. The goal is to get the variable alone with a number on the other side.

Here's how:

Step-by-step explanation:

19−4c=17

19 - 19 - 4c = 17 - 19 Subtract 19 from both sides 19-19 =0 Cancels on the left

-4c = 17-19 subtract: 17-19 = -2

-4c = -2

-4c/4 = -2/-4 Divide both sides by -4

Negatives divided by Negatives have a Positive quotient -4/-4 =1, Cancels

c = 1/2

7 0

3 years ago

Roger weighs 50 kilograms and Austin weighs 45,000 grams. How many kilograms heavier is Roger than Austin? Group of answer choic

horsena [70]

Answer:

5 kg because

Step-by-step explanation:

45000 g = 45 kilo

50 - 45 = 5 Kg

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3 years ago

A bottle-filling process has a low specification limit of 1.8 liter and upper specification limit of 2.2 liter. The standard dev

yarga [219]

Answer:

The standard deviation would have to be reduced to 0.1 in the process to meet this target

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be 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.

The mean is 2 liter.

This means that $\mu = 2$

The company now wants to reduce its defect probability as 0.0455.

This means that:

P(X < 1.8) = 0.0455/2 = 0.02275

P(X < 2.2) = 0.0455/2 = 0.02275

This means that the pvalue of Z when X = 1.8 is 0.02275. This means that when $X = 1.8, Z = -2$ . We use this to find the new standard deviation $\sigma$ . So

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

$-2 = \frac{1.8 - 2}{\sigma}$

$-2\sigma = -0.2$

$\sigma = \frac{0.2}{2}$

$\sigma = 0.1$

The standard deviation would have to be reduced to 0.1 in the process to meet this target

4 0

3 years ago

What are the classifications of each system? Drag the answer into the box to match each system. {4x−2y=102x−y=5 {y=2x−3−2x+y=−5

siniylev [52]

The first one is. coincident
second. inconsistent
third. consistent independent

I just did this quiz (:

7 0

3 years ago

Read 2 more answers

Help its factoring plz im confused

Vanyuwa [196]

Answer:

In order to factor you have to use the distributive property, for the first example you would distribute the 3 to 2x and 1 meaning that you would multiply both 2x and 1 by 3. To distribute negatives you would just pretend that the negative is negative 1 and do the distributive property, for the problems like 4x+2, you would find the gcf or what the two have in common while multiplying and make that the distributor and put what times that equals what the problem is. 4 and 2 have 2 in common because 2x2 is 4 and 2 x 1 is 2. 2 would be outside of the () and then you would put the what times 2 is equal to your original problem so, 2(2+1) to check use the distributive property and you should get your original problem.

Step-by-step explanation:

6 0

3 years ago