All categories

3 years ago

PLEASE HELPPP

Mathematics

2 answers:

Scrat [10]3 years ago

6 0

The answer is D because you can multiply the second equation by -4

zmey [24]3 years ago

6 0

Multiply the bottom equation by 4 and subtract them

You might be interested in

Find the LCM and HCF of 110 and 220 by prime factorization what do you observe....pls answer this

ElenaW [278]

Answer: Check if numbers are prime. Composite numbers prime factorization (decomposing, breaking numbers down to prime factors). Inscribe them as a product of prime factors, in exponential notation.

8 0

3 years ago

2x^2-20x+100 quadratic formula

ArbitrLikvidat [17]

Answer:10

Step-by-step explanation:

7 0

2 years ago

mrs hamilton worked for a real estate agency. she sold a house for $175,000. the agency's fee for the sale was 4% of the sale pr

katrin2010 [14]

You wrote $4,7725 and i dont understand the question.

3 0

3 years ago

Standard deviation of a normal data distribution is a _______. Group of answer choices

FrozenT [24]

Answer:

Standard deviation of a normal data distribution is a measure of data dispersion.

Step-by-step explanation:

Standard deviation is used to measure dispersion which is present around the mean data.

The value of standard deviation will never be negative.

The greater the spread, the greater the standard deviation.

Steps-

1. At first, the mean value should be discovered.

2.Then find out the square of it's distance to mean value.

3.Then total the values

4.Then divide the number of data point.

5.the square root have to be taken.

Formula-

SD= $\sqrt{\frac{(\sum{x-x)^2} }{n-1}$

Advantage-

It is used to measure dispersion when mean is used as measure of central tendency.

5 0

3 years ago

11. The Leonin family used 90 kWh for their electric consumption for the month of

almond37 [142]

Answer:

The electric bill of the Leonin family was of $ 877,626.

Step-by-step explanation:

Given that the Leonin family used 90 kWh for their electric consumption for the month of August, if the power consumption costs P9.7514 per kWh, to determine how much is their electric bill, the following calculation must be performed:

9.7514 x 90 = X

877.626 = X

Thus, the electric bill of the Leonin family was of $ 877.626.

3 0

3 years ago