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3 years ago

3x/2 - 2 > 7

2 answers:

8 0

3x+2/2 = 7. First, multiply 2 to both sides and you get 3x+2=14. Then, just solve using backward PEMDAS. The answer is 4.

Vaselesa [24]3 years ago

6 0

My best guess is that the answer is 4 hope this helps :)

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9k - 6k + 7k - 8 simplify the expression

Kamila [148]

I will gladly simplify it.

9k - 6k + 7k - 8

9k - 6k = 3 k

3k + 7k - 8

3k + 7k= 10k

10k - 8 = 2k

So the simplified form of 9k - 6k + 7k - 8 is 2k

~*"AUBA14"*~

3 0

3 years ago

The diameters of ball bearings are distributed normally. The mean diameter is 130 millimeters and the variance is 9. Find the pr

Crank

Answer:

0.0478

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 135 mm

μ is the population mean = 130 mm

σ is the population standard deviation.

We are given variance = 9

Standard deviation = √variance = √9 = 3

Hence

z = 135 - 130/3

z = 1.66667

Probability value from Z-Table:

P(x<135) = 0.95221

P(x>135) = 1 - P(x<135) = 0.04779

Approximately to 4decimal places = 0.0478

8 0

3 years ago

Match the graph with its equation.

hram777 [196]

The equation to this is A 5X+4Y=-20

5 0

3 years ago

What is the value of x^0

hoa [83]

Answer:

Its equal to 1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The volume of a medal is 35 cm³

ratelena [41]

Answer:

301.224 g

Step-by-step explanation:

Let's divide in the ratio 21:4 the volume of the medal (35cm^3)

copper = (21/25)(35cm^3) = 29.4cm^3

tin = (35 - 29.4)cm^3 = 5.6cm^3

FOR THE COPPER

8.84 : 1 = X : 29.4

X = 259.896(g)

FOR THE TIN

7.38 : 1 = X : 5.6

X = 41.328(g)

(259.896 + 41.328)g = 301.224 g

7 0

2 years ago