MATHEMATICS HIGH SCHOOL

9x 6 when x = negative 2

Answers

Answer 1

Answer:

Answer:

576

Step-by-step explanation:

9 $x^(6)$ x = -2

9 $(-2)^(6)$

= 9(64)

= 576

So, the answer is 576

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Greg was adding numbers on a number line. He started on –5 and then he added –8. Greg wrote that the answer was +13. Is Greg's answer reasonable? A. No, it is not reasonable because –5 + –8 = –13. B. Yes, it is reasonable because –5 + –8 = +13. C. No, it is not reasonable because if you add two numbers you will get a number that is greater than either of the two numbers.

Joline is solving the equation 0 = x2 – 5x – 4 using the quadratic formula. Which value is the negative real number solution to her quadratic equation? Round to the nearest tenth if necessary.

Answers

To solve a quadratic equation, we use the quadratic formula which is expressed as:

x1 = [-b + √(b²-4ac)] / 2a]
x2 = [-b - √(b²-4ac)] / 2a]

These formulas are used to solve for the values of the roots of the equation given. From the equation,

a = 1
b = -5
c = -4

Substituting the values, we have:

x1 = 5.70
x2 = -0.70

Therefore, the negative real number is -0.70.

The value -0.07 is the negative real number in the quadratic equation 0 = x² – 5x – 4

What is a quadratic equation ?

Any equation of the form $\rm ax^2+bx+c=0$ where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

$\rm x = (-b \pm√(b^2-4ac))/(2a)$

We have a quadratic equation;

0 = x² – 5x – 4 or

x² – 5x – 4 = 0

Here a = 1, b = -5, and c = -4

$\rm x = (-(-5) \pm√(-5^2-4(1)(-4)))/(2(1))$

$\rm x = (5 \pm√(41))/(2)$

After simplification:

x = 5.70 or x = -0.70

The value x = -0.70 is the negative real number.

Thus, the value -0.07 is the negative real number in the quadratic equation 0 = x² – 5x – 4

Learn more about quadratic equations here:

brainly.com/question/2263981

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Which measurement is the best estimate for the mass of a refrigerator?A : 90 mg

B : 90 g

C : 90 kg

Answers

C 90 kg A and B are to small

Answer:

90 Kg

Step-by-step explanation:

because the b and a are to small to be the estimate mass of a refrigerator.

You have a coupon for a restaurant. You save $3 on a meal. What was the original cost of the meal?

Answers

if $3 was 25% of the original price then 3*4 = $12

112 1/2 as a fraction

Answers

112 1/2 = (2 x 112 + 1)/2 = (224 + 1)/2 = 225/2

The numbers of days of rain per month in San Diego, for a period of twelve months, are: 7, 7, 7, 5, 2, 1, 0, 0, 1, 3, 4, 6 What is the range of the data values?a. 4
b. 1
c. 7
d. 12

Answers

Hello there, and thank you for posting your question here on brainly.

Short answer: C. 7

Why?

To find the range, we have to take the highest and lowest numbers in the set and subtract them. The highest in the set is 7, and the lowest in the set is 0. Subtract the two. 7 - 0 = 7. 7 is your final answer.

Hope this helped you! ♥

Answer:7

Step-by-step explanation:

Am god

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