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klasskru [66]
3 years ago
14

Help i cant figure this out:(

Mathematics
1 answer:
stealth61 [152]3 years ago
8 0

Answer:

6-2=4

31/5 x 8 = 248/40

15/8 x 5 = 75/40

248-75=173

4 13/40

answers in order

6-2=4

6 1/5 - 1 7/8 = 4 13/40

Hope this helps

Step-by-step explanation:

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marusya05 [52]

Answer:

Step-by-step explanation:

=64a^6−27b^6

6 0
3 years ago
Algebra: Explain in words how to write an equation that is part one: parallel and then also part two: perpendicular to the equat
sweet-ann [11.9K]
A line that is parallel has the same slop where a line that is perpendicular has a slop that is negative and reciprocal.

so for the parallel one you don't need to worry about the slop because it will be 2/3x. But yous the point slope equation form

y-y1=m(x-x1)

y+5=2/3(x+2)

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8 0
3 years ago
Centimeter cubes were used to build the prism. What is the volume of the prism?
ioda

Volume = lxwxh .

Centimeter square

5 0
3 years ago
Read 2 more answers
The length of time to complete a door assembly on an automobile factory assembly line is normally distributed with a mean of 6.7
hram777 [196]
We need to work out the z-value of each question to work out the probability

Question a)

We have
X = 5 minutes
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Standard deviation, σ = 2.2 minutes
z-score = (X - μ) / σ = (5 - 6.7) / 2.2 = -0.77

We want to find the probability of z < -0.77 so we read the z-table for the value of z on the left of -0.77 we have the probability P(z< -0.77) = 0.2206

The table is attached in picture 1 below

The probability of assembly time less than 5 minutes is 0.2206 = 22.06%

Question b)

z-score = (10-5) / 2.2 = 2.27

Reading the z-table for P(z<2.27) = 0.9884
The table reading is shown in the second picture below

The probability the assembly time will be less than 10 minutes is 0.9884

We can use this information to find the probability of the assembly time will be more than 10 minutes  = 1 - 0.9884 = 0.0116 = 1.16%

Question c)

The value of z between 5 minutes and 10 minutes is

P(-0.77<z<2.27) = P(z<2.27) - P(z< -0.77)
P(-0.77<z<2.27) = 0.9884 - 0.2206 = 0.7678 = 76.78%


6 0
3 years ago
If an item is marked up 15% and the new cost is 155.25 what was the original price
Dmitry [639]
(1-0.15)=0.85
0.85 (155.25)=131.962
    estimated answer
131.962 is about $132.00
4 0
3 years ago
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