question: the solutions of a quadratic equation are x=-7 and 5. which could represent the quadratic equation and why?

Answer:

Step-by-step explanation:

1 hour equals 60 minutes

Find out how many pages per minute by dividing 1,520 pages by 60 minutes.

= 25.3333333

Therefore the machine prints 25.333333 pages per minute.

Multiply 25.3333333 by 15 minutes = 380

The machine can print 380 pages in 15 minutes.

You can check your work by finding out how many fifteen minute periods are in an hour (60/15=4), and multiplying 380x4

Since 15x4 is 60 and you can print 1520 pages in 60 minutes, you should be able to multiply 380x4 and get 1520 (spoiler alert! 380x4 is 1,520)

Hope that helped!

Answer:

15d=165

Step-by-step explanation:

15 dollars per dough (d)= 165 dollars

Hope this helps! ;-)

~Master Chief

Let's solve this problem step by step:

 So we know that Isaac sold 'x' number of tubs of dough

    ⇒ and that each tub of dough is worth 15 dollars

       ⇒  means he made '[tex]15*x'[/tex] dollars from selling 'x' tubs of dough

           ⇒ coincidently, we know that he made a total of $165

   ⇒ So the equation is: [tex]15x = 165[/tex]

Answer: 15x = 165

Hope that helps!

Answer: About 9.2

Step-by-step explanation:

  Since this is a right triangle, we can use the Pythagorean theorem. We are solving for the hypotenuse which is the "c" variable in the formula.

a² + b² = c²

7² + 6² = c²

7² + 6² = c²

49 + 36 = c²

85 = c²

[tex]\sqrt{85}[/tex] = c

9.2 ≈ c

Answer:

Step-by-step explanation:

2 by 2

Answer:

He does not have enough money left to buy a backpack for $37.50

Step-by-step explanation:

If he spent 40% of $60 on take out food, that means he spent $24.

So the remaining money would be $60-$24=$36.

So, no, he does not have enough money left to buy a backpack for $37.50

Answer:

probability=number of favorable outcome÷total number of favorable outcome

Step-by-step explanation:

A the probability that all children are boys =3÷3 =1

same answer with the girl children

Answer:

A) 1/8 or 0.125 for three girls and three boys

B) 3/8 or 0.375 for two girls and one boy

C) 3/8 or 0.375 for two boys and one girl

D) 1/2 or 0.50, explanation provided below

Step-by-step explanation:

Part A) If a family has three children, the probability that all three children are girls can be found by first finding the probability of one child being a girl. The probability of being a girl in this case is 1/2. The probability of three girls is thus (1/2) * (1/2) * (1/2) = 1/8 or 0.125. The probability of one child being a boy is 1/2, and so rather than repeating the above steps, we can simply say that it is also 1/8 or 0.125.

Part B) For this part, it is probably easiest to list the combinations:

BBB

BBG

BGB

BGG

GBB

GBG

GGB

GGG

There are three outcomes with two girls and one boy and thus the probability is 3/8.

Part C) Looking at the combinations above, we also see that there are three outcomes with two boys and one girl, and thus the probability is 3/8.

Part D) The fact that Josh has a younger brother does not affect the probability that the third child will be a girl or boy. The probability of the third child being a boy is still 1/2.

Answer: 1536 is equivalent to 48 quarts

Step-by-step explanation:

If you firstly divde 1536 by 8 you'll get 192 then is u divide that by 4 you'll get 48

Answer:

#1, x=57
#2, r=223
#3, h=17
#4, g=48

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

they are all congruent in length.

Answer:

D) line segments UY and ZY

Step-by-step explanation:

Congruent is when things are the same size and shape. Therefore, the only line segments that are congruent to line segment XY are line segments UY and ZY.

Answer:

EF

Step-by-step explanation:

its EF because its on the same corresponding side as LM

BRAINIEST PLS MY LADY

Answer:EF

Step-by-step explanation:

corresponds means having a close similarity; match or agree almost exactly. and by looking at the graph EF corresponds with LM meaning that EF is the answer.

Hope this helps, have a good day/night!

Answer:

The answer is -1 1/2 is less than -1 3/4

Step-by-step explanation:

I look at it more as numbers, so for example 1/2 can be simplified into 50, and 3/4 is 75/ 75 would be greater if it was positive. But, with there being a negative 1 in front of the answer, the lowest number closest to 0 is better. :D

Answer: -1 1/2 is greater

Step-by-step explanation:

-1 1/2 is closer to zero and that makes it larger because they are negative numbers.

Answer:

True

Step-by-step explanation:

To find true or false

Using the properties of logarithms, the left side of the given equation .logb b^2r=2r

, is equivalent to logb b^2r = 2x logb b

(use Power Rule)

=2x(1)

=2x

Hence, the given statement is a true statement.



Answer:

Fraction: there are 100 squares and 44 of them are blue

44 / 100

Decimal: 24 / 100 = 0.44

Percent: 0.24 x 100 = 44%

Answer:

6 gallons of gas

Step-by-step explanation:

20.00 - 2.12 = 17.88

17.88 divided by 2.98 equals 6

Answer:

1,1,2,5,6,7,10,10,13, 18, 19, 20, 24, 26, 27, 31, 36, 54, 63, 67

The average age  is  22 yrs

The sum  of the ages  is  440 yrs

When  two  of the turtles leave, the average is  21 yrs....and there are 18 turtles left

So....the sum of the ages is  21 * 18  = 378

And the difference  in the sums  is  62

The only two values that sum to 62  are  26 and 36

So.....the box turtle must have been 36 and the map turtle must have been 26

Step-by-step explanation:

The age of the escaped box turtle is 36 years in the reptile house of the Kalamazoo Zoo.

A stem-and-leaf diagram is a quantitative assessment of a collection of data in which the data values are divided into a "stem" (the first digit of the number) and a "leaf" (the remainder of the number) (the last digit of the number).

This stem-and-leaf plot shows the ages (in years) of the turtles in the reptile house of the Kalamazoo Zoo:

1,1,2,5,6,7,10,10,13, 18, 19, 20, 24, 26, 27, 31, 36, 54, 63, 67

To find the age of the escaped box turtle, we can first find the average age of all the turtles before the escape. To do this, we can add up all the ages and divide by the number of turtles:

(1+1+2+5+6+7+10+10+13+18+19+20+24+26+27+31+36+54+63+67)/20 = 26

The average age of the turtles remaining at the zoo after the escape is 1 year less than the average age before the escape, so the average age of the turtles remaining at the zoo is 26 - 1 = 25 years.

To find the age of the escaped box turtle, we need to subtract its age from the average age of the remaining turtles.

Let's represent the age of the box turtle X. We can set up the equation:

(1+2+5+6+7+10+10+13+18+19+20+24+26+27+31+36+54+63+67 - X)/19 = 25

We can solve this equation by multiplying both sides by 19 and then subtracting 67 from both sides:

1+2+5+6+7+10+10+13+18+19+20+24+26+27+31+36+54+63 - X = 475

Then we can add X to both sides to get:

1+2+5+6+7+10+10+13+18+19+20+24+26+27+31+36+54+63 -X + X = 475 + X

This simplifies to:

X = 36

Therefore, the age of the escaped box turtle is 36 years.

To learn more about the stem-and-leaf diagram click here:

https://brainly.com/question/8450114

#SPJ2

Answer:

C. There would be 44 Campers who like basketball.

Step-by-step explanation:

When you divide 200 and 22% you get 44. 44 campers like basketball

Answer:

option C

Explanation:

For Naomi's rectangular prism:

⇒ Length × Width × Height

⇒ 5 × 14 × 2

⇒ 140 cm³

For Ben's triangular prism:

⇒ 1/2 × Base × Height × Length

⇒ 1/2 × 5 × 4 × 14

⇒ 140 cm³

The prism's have the same volume.

Answer: Choice C

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

Explanation:

The volume of the rectangular block is:

V = L*W*H = 5*14*2 = 70*2 = 140 cubic cm.

Now move onto the triangular prism.

The triangular face has a base of 5 cm and height of 4, so the area of this face is

A = base*height/2 = 5*4/2 = 20/2 = 10 square cm

Multiplying this with the depth of the prism tells us the volume is

V = (area of the base)*(depth) = (10 sq cm)*(14 cm) = 140 cubic cm

Therefore, the prisms have the same volume.

Answer:

Dimension                                               volume

6 cups (1.5 L) 8 x 2 inch (20 x 5 cm) Round Cake Pan

6 cups (1.5 L) 9 x 1.5 inch (23 x 4 cm) Round Cake Pan

6 cups (1.5 L) 8 x 8 x 1.5 inch (20 x 20 x 4 cm) Square Cake Pan

8 cups (2 L) 9 x 2 inch (23 x 5 cm) Round Cake Pan

here are four outcomes that sum to seven out of 24 possible outcomes. Therefore the probability of values of four sided die and six sided

Step-by-step explanation:

Answer:3

Step-by-step explanation:

Answer: $37.8

Step-by-step explanation: To find the cost of the supplies we multiply $54 by .3 (the decimal version of 30%). The total is 16.2 . If we subtract this from the total amount we find the cost of the cleaning service. 54-16.2 = 37.8

Answer:

5. Area = 28.5 cm; 6. Area = 544,500 cm

Step-by-step explanation:

Area = Length×Width

5. You have to convert the mm to cm by dividing the mm by 10. Then just multiply the length and width.

6. Same thing; different unit, convert the m to cm (or vice versa, not sure which unit you need to answer in) and multiply the length and width.

Answer:

5. Area = 28.5 cm; 6. Area = 544,500 cm

Step-by-step explanation:

We will use the proper formula and solve.

    -> A diameter of 48 / 2 = 24 feet as our radius

   Area:

A = πr²

A = (3.14)(24)²

A = 1,808.64 ft²

      The circle has an area of about 1,808.64 ft²

   Circumference:

C = 2πr

C = 2(3.14)(24)

C = 150.72 ft

      The circle has a circumference of about 150.72 ft

Answer:

Circumference = 150.72

Area = 1808.64

Step-by-step explanation:

Answer: Please give all parts of the question. 1a and 1b

Step-by-step explanation:

Answer:

My explanation is below.

Step-by-step explanation:

rolling a six sided die and getting 7 = impossible

This is because a six sided die doesn’t even have the number 7 on it.

Randomly selecting a girl from a team of 14 boys and 4 girls = unlikely

This is because, if there are 14 boys and 4 girls, the girls have a lower chance of getting picked.

Randomly selecting a short straw from a set of 12 short straws and 12 long straws = neither likely nor unlikely

This is because the chance of picking a long straw is 12/24 and the chance of picking a short straw is 12/24 so it’s equal or neither unlikely or likely since you have a equal chance of picking either one.

Picking a bird from a list of 20 bird species and 6 other animals = likely

This is likely because, 20 is more than 6 and because there are 20 birds and 6 other animals, the birds are more likely.

First size: SA1 = 2B + Ph, where B = area of the base of the figure, P = perimeter of the base and h = height

SA1 = 2(12*7,2) + (12+7,2)*31 = 172.8 + 595.2 = 768 cm^2

Second size: SA2 = 2B + ph2 (where h2 is the new height, 31.9 cm)
SA2 = 2(12*7,2) + (12+7,2)*31.9 = 785.28 cm^2

It increases (by rounding it down) by 17 cm^2.

Answer:

Whenever I hear Statistics I think of numbers and the different probabilities

and I also sometimes think of numbers but overall, it depends on the sense of how it is being talked about I hear it about/the subject when people talk about statistics.

Hope this helps!

Answer:

31.5 square inches

Step-by-step explanation:

7 x 1.5 = 10.5

2 x 1.5 = 3

10.5 x 3 = 31.5

Answer:

1438 cm²

Explanation:

Rectangular prism area:  2(length × width + width × height + length × height)

Here given:

Find Surface Area:

2(19 × 11  + 11 × 17 + 19 × 17) = 2(719) = 1438 cm²