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kipiarov [429]
3 years ago
5

Brainliest will be given!!

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
8 0

Answer:

7x^2+5x-2=0

6x^2+15x=0

Step-by-step explanation:

Aleks [24]3 years ago
4 0

Answer:

2nd Option

5th Option

Step-by-step explanation:

Linear equations are defined as functions that have a <em>x</em> term.

Quadratic equations are defined as functions that have a x² term.

Cubic equations are defined as functions that have a x³ term.

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What is the value of x ?
pishuonlain [190]

Answer:

118

Step-by-step explanation:

180 - 64 - 45 = 62

180 - 62 = 118

5 0
3 years ago
An important factor in selling a residential property is the number of times real estate agents show a home. A sample of 23 home
yanalaym [24]

Using the t-distribution, it is found that:

a. The <u>margin of error</u> is of 4.7 homes.

b. The 98% confidence interval for the population mean is (19.3, 28.7).

The information given in the text is:

  • Sample mean of \overline{x} = 24.
  • Sample standard deviation of s = 9.
  • Sample size of n = 23.

We are given the <u>standard deviation for the sample</u>, which is why the t-distribution is used to solve this question.

The confidence interval is:

\overline{x} \pm M

The margin of error is:

M = t\frac{s}{\sqrt{n}}

Item a:

The critical value, using a t-distribution calculator, for a two-tailed <u>98% confidence interval</u>, with 23 - 1 = <u>22 df</u>, is t = 2.508.

Then, the <em>margin of error</em> is:

M = t\frac{s}{\sqrt{n}} = 2.508\frac{9}{\sqrt{23}} = 4.7

Item b:

The interval is:

\overline{x} - M = 24 - 4.7 = 19.3

\overline{x} + M = 24 + 4.7 = 28.7

The 98% confidence interval for the population mean is (19.3, 28.7).

A similar problem is given at brainly.com/question/15180581

3 0
2 years ago
Dana randomly selected ten different brands of soda and recorded the number of calories in a 12 ounce serving size. They were as
aksik [14]

Answer:

65 i believe

Step-by-step explanation:

first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.

7 0
3 years ago
Can somebody explain plsss ​
tatiyna

Answer:

slope = -2

Step-by-step explanation:

y2 - y1 over x2 - x1

so do

7-3/ 2-4 = your slope

4/-2

3 0
2 years ago
Make a list of the 2- digit numbers
MrRissso [65]
12
13
78
97
65
90
70
these are numbers with 2 digits
5 0
3 years ago
Read 2 more answers
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