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svp [43]
2 years ago
12

What is the positive root of the equation x ^2 + 5x = 150?

Mathematics
2 answers:
devlian [24]2 years ago
6 0
the awnser I came out with is x=10,-15
lawyer [7]2 years ago
3 0

Answer:

Prettymoney learn to spell bro

Step-by-step explanation:

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A local weather enthusiast wants to see if the last five summers have been warmer than normal for Eloy, Arizona. From the Nation
lys-0071 [83]

Answer:


Step-by-step explanation:

This is a question on hypothesis testing.

Population mean based on 30 year average for July was 90 with

a std deviation of 2.1

Sample of 5 shows average 93.5

To check whether sample average = population average

H0: x bar =90

Ha: x bar not equal 90(Two tailed test)

Test statistic = \frac{93.5-90}{\frac{2.1}{\sqrt{5} } }

=3.73

Since this lies outside the range (-1.96, 1.96) we reject null hypothesis

Hence we cannot say sample mean equals 90

5 0
3 years ago
Read 2 more answers
What slope is perpendicular to: m = 58
Lilit [14]

Answer:

1/ -58

Step-by-step explanation:

Perpendicular lines are the negative reciprocal.

5 0
2 years ago
The temperature in Newcastle in winter on a specific day 8°c. By midnight the temperature had dropped to by 12°c . Determine the
Oksi-84 [34.3K]

Answer:

-4 degrees c

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, 8-12=-4

So the answer is -4 degrees c

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

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4 0
3 years ago
Write in slope intercept for slope being -5/7 and passes through (-4,-5)
frutty [35]

Answer:

y = -5/7x - 55/7

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

Step 1: Define

Slope <em>m</em> = -5/7

Random point (-4, -5)

y = -5/7x + b

Step 2: Find y-intercept <em>b</em>

-5 = -5/7(-4) + b

-5 = 20/7 + b

b = -55/7

Step 3: Write linear equation

y = -5/7x - 55/7

4 0
2 years ago
A rectangular prism is 12 inches long, 9 inches wide, and 6 inches high. What is the volume of the prism?
zmey [24]

Answer:

Volume = 12×9×6 = 648 inches^3

Step-by-step explanation:

Hope this helps! Have a nice day!

5 0
3 years ago
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