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3 years ago

What is 0,-4/7,-1/3,0.1,-0.1 in form least to greatest

Mathematics

1 answer:

Rashid [163]3 years ago

5 0

Answer:

-4/7, -1/3, -0.1, 0, 0.1

Step-by-step explanation:

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A grocery store sells a bag of 7 oranges for $2.80. What is the unit cost?

Elanso [62]

Answer:

The quadratic equations and their solutions are;

9 ± √33 /4 = 2x² - 9x + 6.

4 ± √6 /2 = 2x² - 8x + 5.

9 ± √89 /4 = 2x² - 9x - 1.

4 ± √22 /2 = 2x² - 8x - 3.

Explanation:

Any quadratic equation of the form, ax² + bx + c = 0 can be solved using the formula x = -b ± √b² - 4ac / 2a. Here a, b, and c are the coefficients of the x², x, and the numeric term respectively.

We have to solve all of the five equations to be able to match the equations with their solutions.

2x² - 8x + 5, here a = 2, b = -8, c = 5. x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(5) / 2(2) = 8 ± √64 - 40/4. 24 can also be written as 4 × 6 and √4 = 2. So x = 8 ± 2√6 / 2×2= 4±√6/2.

2x² - 10x + 3, here a = 2, b = -10, c = 3. x =-b ± √b² - 4ac / 2a =-(-10) ± √(-10)² - 4(2)(3) / 2(4) = 10 ± √100 + 24/4. 124 can also be written as 4 × 31 and √4 = 2. So x = 10 ± 2√31 / 2×2 = 5 ± √31 /2.

2x² - 8x - 3, here a = 2, b = -8, c = -3. x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(-3) / 2(2) = 8 ± √64 + 24/4. 88 can also be written as 4 × 22 and √4 = 2. So x = 8 ± 2√22 / 2×2 = 4± √22/2.

2x² - 9x - 1, here a = 2, b = -9, c = -1. x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(-1) / 2(2) = 9 ± √81 + 8/4. x = 9 ± √89 / 4.

2x² - 9x + 6, here a = 2, b = -9, c = 6. x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(6) / 2(2) = 9 ± √81 - 48/4. x = 9 ± √33 / 4 .

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3 years ago

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I need help with this question

Tresset [83]

Answer:

Kite.

Step-by-step explanation:

Quadrilateral Q is a kite since it has 2 different pairs of equal sides.

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3 years ago

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Wyatt is working two summber jobs, washing cars and tutoring. He must work no less than 12 hours altogether between both jobs in

stiv31 [10]

Answer:

$w+t\geq 12$

Step-by-step explanation:

Please consider the complete question.

Wyatt is working two summer jobs, washing cars and tutoring. He must work no less than 12 hours altogether between both jobs in a given week. Write an inequality that would represent the possible values for the number of hours washing cars, w, and the number of hours tutoring, t, that Wyatt can work in a given week.

The number of hours altogether between both jobs would be $w+t$ .

Since Wyatt must work no less than 12 hours altogether between both jobs in a given week, so hours in both jobs should be greater than or equal to 12. We can represent this information in an inequality as:

$w+t\geq 12$

Therefore, our required inequality would be $w+t\geq 12$ .

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3 years ago

Suppose a line passes through (a, -11) and (7,13), and is parallel to the line

Genrish500 [490]

Answer:

a=19

Step-by-step explanation:

The slope of the equation is - 2 as it's parallel to the given line. Using two point slope form, (13-(-11))/(7-a)=-2. 24=-2(7-a), - 12=7-a, a=19

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