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Allisa [31]
2 years ago
15

ANSWER ASAP ILL MARK BRAINLIEST!!!!

Mathematics
1 answer:
Korolek [52]2 years ago
8 0

Answer:

2 {x}^{2}  - 6x - 1 = 0 \\ a = 2 \:  \:  \:  b =  - 6 \:  \:  \: c =  - 1 \\  \\ x =  \frac{6\binom{ + }{ - } \ \sqrt{  {6}^{2} - 4(2)( - 1)}   }{2 \times 2}  \\  \\ x =  \frac{6 \binom{ + }{ - } \sqrt{44}  }{4}  \\  x =  \frac{6 +  \sqrt{44} }{4} \\  \\  or x =  \frac{6 -  \sqrt{44} }{4}

I hope that is useful for you :)

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a restaurant has an all-you-can-eat buffet. They charge $13.95 per person. what is the constant of proportionality?​
Evgen [1.6K]

Answer:

staurant has an all-you-can-eat buffet. They charge $13.95 per person. what is the constant of proportionality?​

Step-by-step explanation:

3 0
3 years ago
Identify the percent of change as an increase or a decrease. 50 pounds to 35 pounds. Find the percent of change.
Solnce55 [7]
Since it starts at 50 and goes to 35....it is a decrease since the amount is going down, or getting smaller.  To find the percent, first find the difference 50-35 = 15; then divide by the initial amount of 50.  So, 15/50 = 0.3, and then convert that to a percent by multiplying by 100.  Therefore the percent decrease is 30%
5 0
3 years ago
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EMERGENCY PLEASE HELP (22 points)<br> Look at pic to see problem
Genrish500 [490]

Answer:

(-4, 7)

Step-by-step explanation:

x is found on the x axis its -4

to find y you go up to where the point bvb is it is located at positive 7

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3 years ago
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What is the measure of the smallest interior angle of the hexagon shown?
yan [13]
<h3>Answer:  C) 70 degrees</h3>

=========================================================

Explanation:

We have n = 6 sides, so the interior angles must add to 180(n-2) = 180(6-2) = 720 degrees

Lets add up the angles, set the sum equal to 720 and solve for x

x+2x+115+2x+115+2x = 720

7x+230 = 720

7x = 720-230

7x = 490

x = 490/7

x = 70

This makes angle 2x = 2*70 = 140 degrees

We see that x = 70 is the smallest angle, so that's why C is the answer.

7 0
2 years ago
Last week’s and this week’s low temperatures are shown in the table below. Low Temperatures for 5 Days This Week and Last Week L
STatiana [176]

Question:

Temperatures for 5 Days This Week and Last Week

Low Temperatures This Week (Degrees Fahrenheit) 4 10 6 9 6 Low Temperatures Last Week (Degrees Fahrenheit) 13 9 5 8 5 Which measures of center or variability are greater than 5 degrees? Select three choices.

a) the mean of this week’s temperatures

b) the mean of last week’s temperatures

c) the range of this week’s temperatures

d)the mean absolute deviation of this week’s temperatures

e) the mean absolute deviation of last week’s temperatures

Answer:

a) the mean of this week’s temperatures

b) the mean of last week’s temperatures

c) the range of this week’s temperatures

Step-by-step explanation:

I would be verifying the options a, b, and c in my answer above through calculations which are shown below.

We were given the following data:

Low Temperatures This Week (Degrees Fahrenheit)

4, 10, 6, 9, 6

Low Temperatures Last Week (Degrees Fahrenheit)

13, 9, 5, 8, 5

We are to find which measures of center or variability are greater than 5 degrees.

Option a

The mean of this week’s temperatures

(4+ 10+ 6+9+ 6) °F ÷ 5 = 35 °F ÷5 = 7°F

Option a is correct because it measures of center or variability which is 7 °F is higher than 5°F

Option b

The mean of last week’s temperatures

(13+ 9 + 5 + 8 + 5) °F = 40°F ÷ 5 = 8°F

Option b is correct , because its measure of variability which is 8°F is greater than 5°F.

Option c

the range of this week’s temperatures

This week's temperature is given as

(4, 10, 6, 9, 6) °F

Range is defined as the difference between the highest number and the lowest number

Range of this week's temperature = (10 - 4) °F = 6°F

Hence Option c is correct because it measures of center or variability which is 6°F is greater than 5°F

From the above calculations we can accurately confirm that options a, b, and c are correct because the measures of their center or variability is greater than 5°F

3 0
3 years ago
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