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3 years ago

What is the next step to solve this equation? 3x - 5 = 7

Mathematics

2 answers:

Ronch [10]3 years ago

8 0

Answer:

Find the value of x the value is x=4

3x4=12

12-5=7

Step-by-step explanation:

densk [106]3 years ago

5 0

Add 5 to both sides, then you get 3x=12 and then divide both sides by 3 to get x=4

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If the trapezoid below is reflected across the x-axis, what are the coordinates of B'?

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The x-coordinate remains the same as the x-coordinate of point B.
The y-coordinate becomes the additive inverse of the y-coordinate of point B.

Answer: B. (3, -8)

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3 years ago

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What integer is equivalent to 9^3/2

ella [17]

Here is the problem and amswer 9/3=3 3/2= 1.5

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3 years ago

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An escalator at a shopping center is 200.75 feet long and rises at an angle of 15⁰. What is the vertical rise of the escalator? Round to hundredths place

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3 years ago

In a certain city, there are about one million eligible voters. A simple random sample of size 10,000 was chosen to study the re

Ronch [10]

Answer:

REQUIRED TEST STATICS IS 35.19

Step-by-step explanation:

total size of sample = 10,000

men women

voted 2777 3466

did not vote 1444 2313

By chi square test we can find the relationship between gender and participation in the election

$X^2 = \frac{ N(ad-bc)^2}{(a+c)(b+d)+(a+b)(c+d)}$

where

a represent = 2777, b = 3466, c= 1444, d = 2313, N = 10000

Putting values to get chis square statics

$X^2 = \frac{ 10000(2777*2313-3466*1444)^2}{(2777+1444)(3466+2313)+(2777+3466)(1444+2313)}$

$X^2 = = 35.159$

HENCE REQUIRED TEST STATICS IS 35.19

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4 years ago

What is 2/3 × 1/5what does this equal

Tom [10]

It’s 2/15

It’s just 2x1 and 3x5

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3 years ago