Mathematics Middle School

The equation x^2 = d has how many real solutions when d > 0?

Answers

Answer 1

Answer:

2 real solutions

Step-by-step explanation:

d>0: two real solutions

D=0 one real solution

D<0: two complex (imaginary) solutions

Answer 2

Answer:

Step-by-step explanation:

This is a quadratic equation.  All quadratic equations have two solutions.  In this case, with d > 0, the two solutions / roots are real, one positive and one negative.  To see this, take the square root of both sides of x² = d.

Related Questions

what is the difference between 4 hundredths and 8 ten thousandths?

Answers

Answer:

i think its 0.0392

Step-by-step explanation:

sorry if its wrong

Choose the model for the problem 2/3 divided by 2.
4/6
1/6
1/3
2/3

Answers

2/3 : 2 = 2/3 x 1/2 = 2/6 = 1/3

Answer:

[tex]\frac{1}{3}[/tex]

Step-by-step explanation:

[tex]\frac{2}{3}\div 2\\\\ \frac{2}{3} *\frac{1}{2} \\\\\frac{2}{6} \\\\\frac{1}{3}[/tex]

Hope this helps!

HELP ME FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

10 x 2 +4 = 24

Step-by-step explanation:

10x2+4 the answer is 24

Find the area of the shaded region. Round your answer to the nearest hundredth

Answers

Answer:

20ft squared

Step-by-step explanation:

area = multiplication

4 x 4 = 16ft

16 rounded = 20

i need help on this it is due thursday and im so close to finishing

Answers

Answer:

B is the answer

Step-by-step explanation:

Don't second guess it was right :)

Write an equation and solve

Two times the cost of a burger and fries is $10. If the fries are $1 how much is the burger?

Answers

10 divided by 2 minus 1 equals 4

Answer:

Step-by-step explanation:

b = cost of 1 burgerf = cost of fries$1 = the cost of fries

2(b+f) = 10

2b + 2f = 10

2b + 2(1) = 10

2b + 2 = 10

     - 2    - 2

2b = 8

/2     /2

b = $4 <== the cost of each burger

Check your answer:

2(b+f) = 10

2(4+1) = 10

8 + 2 = 10

10 = 10

This statement is correct

Hope this helps!

HELP pls I WILL GIVE brainliest

Answers

Answer:

6

Step-by-step explanation:

The cubic root of 216 is 6.

Answer:

72

Step-by-step explanation:

216 in cubic feet is 72

During a sale, a clothing store discounts all prices by the same percentage. A pair of jeans is marked down from $45 to $33.75. What is the sale price for a $65 sweater after the same discount is applied?

Answers

Answer:

48.75

Step-by-step explanation:

33.75 is 75% of 45

So price of sweater is 75% of 65, or 25% less which is 48.75

Hello everyone can you answer this for me? What is A in the equation attached? Please and thank you.

Answers

Answer:

a = 6

Step-by-step explanation:

Hello!

Solve:

4(3a - 4) = 563a - 4 = 14          (factoring out 4)3a = 18               (adding 4 to both sides)a = 6                   (dividing by 3)

Another way:

4(3a - 4) = 5612a - 16 = 56        (distributive property)12a = 72               (moving like terms)a = 6                    (dividing by 12)

Distributive Property of Multiplication:

The process of distributing the outside factor to the terms in the parenthesis.

Example:

[tex]4(3a - 4)\\\\4(3a) - 4(4)\\\\12a - 16[/tex]

simplify 5 1/2 - 2 3/4

Answers

Answer:

1

Step-by-step explanation:

5/2-6/4

5/2-3/2

5-3/2

2/2

1

Answer:

Exact form is =11/14 decimal form is =2.75

Step-by-step explanation:

there are different ways to answer but here are two answers

PLEASE HELP!!!!! ASSIGNMENT IS DUE TODAY

Answers

Answer: The answers will be in the photos.

Step-by-step explanation:

Hope this helps, and also my work might be little missy. :/

ONLY answer if you know what the answer is. If you are not sure DONT FREAKING ANSWER.

Answers

Answer:

13

Step-by-step explanation:

the absolute value is the opposite of its number, for example 6, the opposite of 6 is -6

hope this helps :)

and if it's wrong i am so sorry:(

Answer:

The absolute value of -13 is 13

Step-by-step explanation:

The absolute value of a number is how far it is from 0.

Positive 13 is 13 away from zero, but so is -13

Hope that helps!

can someone please help me??? I need this done or I'll fail the quarter and I don't have any time to work on it!!! and please no links!

Answers

Answer:

1. A  8x-12

2. L  -10x+5

3. A  8x+12

4. W  18x-24

5. N  -6x+8

6. M  -16x-12

7. O  -5x+15

8. O  -6x+12

9. O  4x-10

10. O  -20x+8

11. W  -2x-6

12. E  -6x+3

13. R  -6x-12

Step-by-step explanation

You just multiply the number out of the parentheses by each number inside.  If it has a variable, in this case "x" then you just put "x" right after the number.

Example: 2(3x)= 6x

If there is just a negative out of the parentheses then you just change the sign.

Example: -(5x-3)= -5x+3

(20 POINTS PLS HELP!!)

Answers

B would be the right answer, because you can not only have one point to determine a line.A line segment goes to one point and stops and a line goes on infinitely
B and C are both correct but the Best answer would be B

Lauren recorded the price of a gallon of milk at two grocery stores for four weeks.


show your work!!


On average, which grocery store had a better price for milk and by how much?


Discount Mart by $0.08 per gallon


Super Store by $0.08 per gallon


Discount Mart by $0.40 per gallon


Super Store by $0.40 per gallon

Answers

Hi,

Discount Mart:

2.99 + 3.19 + 3.55 + 3.05= 12.78

12.78 ÷ 4= 3.195

The average price of milk at Discount Mart is 3.195$

Super Store:

3.19 + 2.79 + 2.99 + 3.49= 12.46

12.46 ÷ 4= 3.115

The average price of milk at Super Store is 3.115$

3.195 - 3.115= 0.08

Therefore we can see that Super Store had a better price on average than Discount Mart by 8 cents.

Your final answer is: "Super Store by $0.08 per gallon"

Hope I could help~ have a good day/night :]

Start by finding the average of both stores for the 4 week time:

average = values / # of values


average for Discount Mart = $2.99 + $3.19 + $3.55 + $3.05 / 4 = $12.78 / 4 = $3.20 on average

average for Super Store = $3.19 + $2.79 + $2.99 + $3.49 / 4 = $12.46 / 4 = $3.12

$3.20 > $3.12

$3.20 - $3.12 = $0.08 or 8 cents

Discount Mart > Super Store

Super Store had a cheaper price for milk by $0.08 per gallon on average.

Let me know if you have any questions!

Please help!
1.) Triangle: z = ________ Use triangle sum angle relationship
Set up a proportion to solve for x.
x = ________

2.) Set up a proportion to solve for y.
y = _________

Answers

Answer:

times all of them

Step-by-step explanation:

and yiu will get your awnseryou

An experiment involves flipping a coin three times.
The following tree diagram shows the possible outcomes for the experiment

What is the probability of getting exactly 2 tails?

Enter your answer as a reduced fraction, like this: 3/14

Answers

Answer:

19/50

Step-by-step explanation:

If you put this in decimal form, it's 0.38.

All you have to do is convert the decimal to a reduced fraction, which is 19 over 50 (19/15).

Hope this helps you!

6 divide by 2 (1 + 2)

Answers

Answer:

9

Step-by-step explanation:

6/2(1+2)

6/2(3)

6/2=3

3(3)=9

6/2(1+2)
6/2(3)
3(3)=9

A fifth grade class collected data about the number of chapters that students read in one week. Their teacher asked them to read a chapter every school day. How many students met or exceeded the goal?

3
5
8
4

Answers

Answer:

your answer is 8

Step-by-step explanation:

Since there is 5 school days in a week you will count all the X,s 5 and above.

HOPE THIS HELPSSSS AND HAVE A GREAT DAY :)

Answer:

8 students met or exceeded the goal

Step-by-step explanation:

There are 5 school days in one week meaning they would have to read a minimum of 5 chapters per week and out of the 12 students listed in the graph, only 4 students did not reach the required amount leaving 8 students who did.

FIRST TO ANSWER GETS BRAINLIEST

Answers

Answer:

about 1575 sqaure meters

Step-by-step explanation:

1. Create An equation

Formula Area of trapeziod: 1/2x(b1+b2)xh

1/2x(40+50)x35=Area

1/2x90x35=Area

45x35=Area

Area=1575 because the shape is a trapeziod according to the information in the problem which we can just then use the formula to calculate the area.

Pablo surveyed his class to find out how many movies each student watched last year. He recorded the results in the dot plot below.



Use the dot plot to complete the sentences.

There were 10 students who watched
movies.

There were more students who watched 5 to 7 movies than students who watched
movies.

Exactly half the class watched
movies.

Answers

Answer:

D

Step-by-step explanation:

Answer:d

Step-by-step explanation:

What is the surface area of the square pyramid?

Answers

Answer:

108.82

Step-by-step explanation:

I will give brainliest
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

C

Step-by-step explanation:

Always start with x so E is above the 3 and is in line with the 2

and do the same with F and G

Answer:

C

Step-by-step explanation:

What is the surface area of the Triangular Prism rounded to the nearest tenth?
A)18.5
B) 36.9
C) 43.6
D) 87.2

Answers

Answer:

C. 43.6

Step-by-step explanation:

you need to take the area of each shape

lets do the skinny triangles first on the top and bottom of this shape.

so to find the formula of triangle we need to do 0.5 * 1.26 * 5.3

because the formula of a triangle is half the base times height.

so we get 0.5 * 1.26 * 5.3 = 3.339

multiply it by two and we get 6.678

now lets find the area of the huge rectangle on the back/behind of the shape

3.3*5.3 = 17.49

now lets find the area of the two smaller rectangles

3.3 * 3.6 = 11.88

2.3 * 3.3 = 7.59

now lets add

6.678 + 17.49 + 11.88 + 7.59 = 43.638

round it to 43.6

I think the answer is C. 43.6

HELP FAST DUE IN LITERALLY 3 MIN!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

62 units²

Area of full rectangle:

L * B(8+3) * (4+6)11 * 10110

Area of not shaded:

6 * 848

Area shaded:

110 - 4862

Find the solution to 1/11 / 5, using either the flip and multiply method or common denominator method. a. 1/55 b. 5/55 c. 55 d. 5/55. IF RIGHT U GET BRAINLIEST 5 STAR AND FOLLOW AND LIKE

Answers

Answer:

1/55

Step-by-step explanation:

[tex] \sf\frac{1}{ \frac {11}{5}} \\ [/tex]

[tex] \sf \: \rightarrow \: \frac{1}{ \frac{11}{ \frac{5}{1}}} \\ [/tex]

[tex] \sf=( \frac{1}{11})( \frac{1}{5})[/tex]

[tex] \sf= \frac{(11)}{(115)}= \frac{1}{55} \: (Decimal: 0.018182)[/tex]

Let's see

1/11/51/11×1/51/(11)(5)1/55

Option A

Farmer Elentire had mimstoons on her farm. As days (X) increased,
the total count of mimstoons (Y) changed. The equation (rule) that
represents this relationship is:
Y = 8x + 18
Fill in the table based on this relationship:

Answers

Here is your answer

A company has recently been hiring new employees. Today the company has 29% more employees than it did a year ago. If there are currently 38700 employees, how many employees did the company have a year ago?

Answers

Answer:

27477

Step-by-step explanation:

Subtract 38700 from 29% = 27477.

Triangle LMN is similar to triangle OPQ. Find the measure of side PQ. Round your answer to the nearest tenth if necessary. Figures are not drawn to scale.

Answers

29 divided by 9 is equal to 3.222…
3.222… times 5 is equal to 16.111…
16.1 to one decimal place

Answer: 29 divided by 9 is equal to 3.222…3.222… times 5 is equal to 16.111…16.1 to one decimal place give the other person brainlyist

Step-by-step explanation:

Please help me solve this

Answers

the answer to this would be 2,3,7
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