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vladimir2022 [97]
3 years ago
11

The expression 1.7j−3.4 factored is

Mathematics
1 answer:
saveliy_v [14]3 years ago
6 0

Answer:

1.7j - 3.4 = 1.7(j - 2)

Step-by-step explanation:

Note that both 1.7 and -3.4 are evenly divisible by 1.7:

1.7j - 3.4 = 1.7(j - 2)

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Write the number 0.000938 in scientific notion.
ss7ja [257]
<span>0.000938 in scientific notion.

First we need to move the decimal to its right and we need a number which is between 1-10. 

0.000938
00.00938
000.0938
0000.938
00009.38

We moved the decimal 4 times and to the right so it will be negative. -4.


9.38 </span>× 10^-4

Scientific notation of 0.000938 is 9.38 × 10^-4.

Check:-

9.38 × 10^-4 = <span>0.000938
</span>0.000938 = <span>0.000938
</span>Correct!

<span>Scientific notation of 0.000938 is 9.38 × 10^-4.</span>
6 0
3 years ago
Form a quadratic polynomial whose zeroes are 3-√3/5 and 3+√3/5?​
barxatty [35]

Answer:

x^2 -6x + 222/25

Step-by-step explanation:

If the zeros are as above, then ;

x = 3-√3/5 or x = 3 + √3/5

Firstly, let’s represent √3/5 by b

Thus;

The two roots are ;

x = 3-b or x = 3 + b

so;

x+ b -3 and x -3-b

The quadratic equation is the product of the two

(x + b-3)(x - b -3)

x(x - b-3) + b(x -b -3) -3(x - b -3)

= x^2 -bx -3x + bx -b^2 -3b -3x + 3b + 9

Collect like terms and we are left with;

x^2 -6x -b^2 + 9

So let’s put back b = √3/5

x^2 -6x -(√3/5)^2 + 9

x^2 -6x -3/25 + 9

x^2 -6x + 222/25

3 0
3 years ago
Can someone please help me
yulyashka [42]

9514 1404 393

Answer:

  D. at the ballpark

Step-by-step explanation:

The y-coordinate doesn't change between points C and D. That means Daniel's distance from home is not changing. Since Daniel rode to the ballpark and back, and since segment CD represents Daniel's farthest distance from home, we conclude ...

  CD represents the time Daniel spent at the ballpark.

5 0
2 years ago
The set of life spans of an appliance is normally distributed with a mean mu = 48 months and a standard deviation sigma = 8 mont
navik [9.2K]

Using the normal distribution, it is found that the life span of an appliance that has a z-score of –3 is of 24 months.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

In this problem, the parameters are given as follows:

\mu = 48, \sigma = 8, Z = -3.

Hence:

Z = \frac{X - \mu}{\sigma}

-3 = \frac{X - 48}{8}

X - 48 = -24

X = 24.

The life span of an appliance that has a z-score of –3 is of 24 months.

More can be learned about the normal distribution at brainly.com/question/24663213

#SPJ4

6 0
1 year ago
TYPES OF TRIANGLES RIGHT ANGLED TRIANGLE ETC
user100 [1]

Answer:

Step-by-step explanation:

b) Parallelogram

c) Square

d) Parallelogram***

***Not too sure about this one.

7 0
2 years ago
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