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ikadub [295]
3 years ago
13

5(2x+7) HELP ASAP PLS​

Mathematics
1 answer:
Bingel [31]3 years ago
3 0

Answer:

45x

Step-by-step explanation:

Plz mark brainliest

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A manufacturer of radial tires for automobiles has extensive data to support the fact that the lifetime of their tires follows a
Diano4ka-milaya [45]

Answer:  (C) 0.1591

Step-by-step explanation:

Given : A manufacturer of radial tires for automobiles has extensive data to support the fact that the lifetime of their tires follows a normal distribution with

\mu=42,100\text{ miles}

\sigma=2,510\text{ miles}

Let x be the random variable that represents the lifetime of the tires .

z-score : z=\dfrac{x-\mu}{\sigma}

For x= 44,500 miles

z=\dfrac{44500-42100}{2510}\approx0.96

For x= 48,000 miles

z=\dfrac{48000-42100}{2510}\approx2.35

Using the standard normal distribution table , we have

The p-value : P(44500

P(z

Hence, the probability that a randomly selected tire will have a lifetime of between 44,500 miles and 48,000 miles =  0.1591

3 0
3 years ago
• You use it to form general ideas and rules based on your experiences and​
Vladimir79 [104]

Answer: Scientific knowledge?

I’m not really sure what you’re asking, but I hope this helped!

Step-by-step explanation:

6 0
3 years ago
To find the product of a 2 digit number and 1 digit number, you can multiply the tens, multiply the ones, and find the sum of ea
NARA [144]
Of each ones place.... Or ... The sum of each number? Just trying to help.....
8 0
3 years ago
ms smith paid 125 to have her hair colored and cut. If she tips her hairdresser 15% of her bill, how much was the tip
elena-s [515]
The tip was $125 * 0.15, or $18.75.
3 0
3 years ago
Read 2 more answers
a store sells grass seed in small bags and large bags.the small bags have 7 pounds of seed for 27.93 and large bags cost 66.98.w
Nonamiya [84]

Answer

Find out the ratio of price to pound for each bag.

To prove

As given

A store sells grass seed in small bags and large bags.the small bags have 7 pounds of seed for $27.93 .

7 pound = $27.93

Now find out the cost for the 1 pound.

1\ pound\ cost= \frac{27.93}{7}

1 pound cost = $3.99

As given large bags cost $66.98.

Now find out pounds in the large bags.

Let us assume that the number of pounds in the large bags be x.

Than

3.99 × x = 66.98

x = \frac{66.98}{3.99}

x = 16.8 pounds (approx)

Now find out the ratio of  price to pound for each bag.

As small bags weight = 7 pounds

Cost of the small bags = $27.93

\frac{Price\ of\ small\ bag}{Cost\ of\ the\ small\ bags} = \frac{27.93}{7}

As large bags weight = 16.8 pounds

Cost of the large bags = $66.98

\frac{Price\ of\ large\ bag}{Cost\ of\ the\ large\ bags} = \frac{66.98}{16.8}

Hence proved


7 0
3 years ago
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