Mathematics Middle School

1. Select all the equations that have 2 solutions.
A. (x + 3)2 = 9
B. (x – 5)2 = -5
C.)(x + 2)2 – 6= 0
D. (x – 9)2 + 25 = 0
E. (x + 10)2 = 1
F. (x - 3)2 = 0
G.5 = (x + 1)(x + 1)​

Answers

Answer 1

.....................

Related Questions

Do the ordered pairs (2, 20), (5, 15), (12, 19), and (14, 13) represent a function?

Answers

Answer:

yes

Step-by-step explanation:

Yes it does because the c values don’t repeat

help plzzz...also give steps

Answers

Your answer is h=2 or the height is to hope this helped
answer = 2.5, i did 12.5 divided by 5 which got 2.5

Which equation correctly models the relationship between hours passed, h, and the number of bacteria present, b, as shown in the table?

Amount of Bacteria

Hours # of

Passed Bacteria

0 1

1 2

2 4

3 8

4 16


A. b=2 to the h power

B. b=2 to the h power plus 1

C. b=2h

D. b=2h+1
sorry, it shows it a bit messed up. the number of hours is shown on the left side with the numbers directly below it. the number of bacteria is the second column.

Answers

Answer:

A. b = 2 to the h power

Step-by-step explanation:

For the table:

When:

h = 0, b = 1, so 1 = 2^0, 1 = 1

h = 1, b = 2, so 2 = 2^1, 2 = 2

h = 2, b = 4, so 4 = 2^2, 4 = 4

h = 3, b = 8, so 8 = 2^3, 8 = 8

h = 4, b = 16, so 16 = 2^4, 16 = 16

I got A. B=2 to the h power

Annabella swam for 2 3/4 hours, macyn swam 1 6/8 hours less than Annabella, seth swam 1 2/3 hours longer than macyn, Jaden swam as long as Annabella and Seth combined, Ricardo swam 6/9 of an hour longer than seth. How long did each kid swim.

Answers

Answer:

Annabella swam for 2 hours and 45 Minutes. Macyn swam for 1 hour. Seth swam for 2 hours and 40 minutes. Jaden swam for 5 hours and 25 minutes. Ricardo swam for i believe 3 hours and 20 minutes. Jaden swam the longest and all of them together swam for: 910 minutes. AKA 15 hours and 10 minutes

Step-by-step explanation:

That was a lot of work please mark brainliest :)

I WILL ANSWER SO THE OTHER PERSON CAN GET BRAINLIEST:D
HOPE YOU HAVE A NICE DAY/NIGHT!

Which angles are supplementary to each other ? Select all that apply

Answers

Answer:

6 and 4

Step-by-step explanation:

Answer:

Choice 3: ∠5 and ∠6

Step-by-step explanation:

Supplementary means straight, and these two angles form a straight line when added together (angle measurements add up to 180)

Hope this helped :)

What angle is complementary to 1 ? I'll mark brainliest

Answers

the angle complementary to angle 1 is angle 2

Answer:

angle 2

Step-by-step explanation:

complementary angle to angle 1 is angle 2 because in complementary angle sum of two amgle is 90 degree and when we add angle 1 and angle 2 it gives us 90 degree since they are perpendicular.

The area of the rectangular floor in Tamara's room is 95 5/6 square
feet. The width of the room is 8 1/3 feet. What is the length of Tamara's
room?

Answers

Answer:

11 ½ feet

Step-by-step explanation:

Answer : 11 1/2

Explanation : Area = L • W, so if you do 95 5/6 divided by 8 1/3 you get 11 1/2

***no links please:)****

Answers

Answer:

A

Step-by-step explanation:

√64 = 8

so B isn’t correct because 8.16... is greater than 8 and the same is for C

The only correct option is A: 7.5

Answer:

the answer is

A because /64= 8

and between 6⅛ and 8

its 7½

Which group contains numbers that all round most closely to 0? 1/2,2/7,9/10 3/4,5/6,7/9 3/5 , 2/4,4/7 1/5 ,2/9 , 0/4

Answers

Answer:

0/4 and all the other numbers in it's group are super low, so the last group. 0/4 is 0.

0/4 equals 0 exactly but the closes that isn’t equal too is 1/5

( Trigonometry question)
- will give branliest if it's the correct answer.-

Answers

Answer:

728.0067825

Step-by-step explanation:

Answer:

728 rounded

Step-by-step explanation:

i dnt know how I came up with the answer

Enter your answer in simplified fraction form
There are 4 queens in a standard deck of 52 cards. You pick one card at random. What is the probability of not picking a queen
The probability of not picking a queen i

Answers

Answer:

1/13

Step-by-step explanation:

Answer:

1/13 is the answer

Step-by-step explanation:

which angles are vertical to each other ?

Answers

Answer:

Make me a Brainlist pls

Step-by-step explanation:

10 and 4 I think so! it would be correct

Answer:

∠7 and ∠5

Step-by-step explanation:

I NEED HELP ASAP!!!!! pls and thank you ^w^

Answers

1. Like fractions
2. Equivalent fractions
3.least common demnominator
4.mixed number
5.unlike fractions
1. Like fractions
I double checked myself

Find the volume of this prism.

Answers

Isnt it letter D ? Not sure tho
It is D because you have to multiply 8x7 which is 56 and then multiply 14x 56 which is the answer 784.

which angle is adjacent to 9 ?

Answers

Adjacent means next to, so 12

Answer:

its the last one 12

Step-by-step explanation:

Teddy wants to wrap a gift she bought for her best friends birthday. Determine how much wrapping paper she will need to cover the entire surface area of the gift box. (and yes that side is 5.3 incase you are questioning if that point is there or not.

A. 127.2 in squared
B. 24.6 in squared
C. 49.1 in squared
D. 98.2 in squared

Answers

Answer:

127.2

Step-by-step explanation:

A. 127.2 in squared I remember doing this so I I know I am right

which angle is supplementary to 16 ?

Answers

Answer:

Angle 13 is supplementary to angle 16

Answer: Angle 13 is supplementary to angle 16

Step-by-step explanation: I took the test

Need help, Don’t know what to put!!!!!

Answers

180 - 143 = 37
180 - 37 - 61 = 82

The answer is 82°

Answer:

84

Step-by-step explanation:

180° - 61° - 37°

180° is the sum of the 3 angles in any plane triangle. the 37 is reasoned from the picture

A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles:
An oval is formed by a rectangle with semicircles at each end. The length of the rectangle is 54 inches. The width of the rectangle is 27 inches.

Which of the following is the perimeter of the inner edge of the frame?

(π = 3.14)

192.78 inches
246.78 inches
277.56 inches
331.56 inches

please help lol

Answers

Answer:

The answer is 192.78 inches

Step-by-step explanation:

An oval is formed by a rectangle with semicircles at each end. We can visualize this easily.

The length of the rectangle is 54 inches.

The width of the rectangle is 27 inches.

The perimeter of rectangle is =  

=  

= 162 inches

And because there are two semicircles, we can combine them to form a circle. So, perimeter of a circle is called a circumference.

The width of the rectangle forms the diameter, so its half will be the radius.

r =  

The circumference is given by :  

=  inches

Now as the described oval shape is a complete figure without lines inside, we will subtract the width of both sides of the rectangle from the complete perimeter.

The complete perimeter is =  inches

The inner edge perimeter will be =  = 192.78 inches

pls mark as brainliest

Answer:

1st option

Step-by-step explanation:

which angles are supplementary to 14 ? select all that apply.

Answers

Answer will be 15>
Supplementary angles are two angles with the sun of 90 degrees
19 is supplementary to 14 :)

Consider the inequality -20.2 > 0y. Which of the following must be true? Check all that apply.
1.You cannot divide by zero.
2.The inequality is equivalent to -20.2 > 0, which is false.
3.The solution is y > 0.
4.The solution is 0 > y.
5.The solution is y = 0.

Answers

Answer:

Step-by-step explanation:

1 and 2

1 because indeed you can't divide -20.2 by zero to get y

2 because the inequality is basically a false situation.

The answer is definitely 1 and 2

Question: What is x????​

Answers

The answer for x will be 15

Answer:

x= 15

Step-by-step explanation:

because the other side is equal so you want to find what number times 3 will get you 45

which angles are complementary to each other select all that apply

Answers

Answer: 4 and 1

Step-by-step explanation:

Both ∠4 and ∠1 are equal angles. Both the angles are beside a right angle and you can measure it. The other answers are over 90 degrees, or below 90. This is because they either combine a 90 degree angle with another angle, or that they are too small and obvious that they are not complementary.

Answer:

<2 and <4

complimentary <s add up to 90 °

Find the mean of the set of data. Use a calculator if necessary.

1, 5, 8, 10, 11

The Mean is _____.
5
7
6
8

Answers

Answer:

7

Step-by-step explanation:

mean is average of the numbers

add all values then divide by the numbers

(1+5+8+10+11) / 5

35 / 5 = 7

7
1+5+8+10+11 is 35
35/5 is 7

How do you convert parts per million (ppm) to meters?

Answers

Answer:

100,000 in 1

Step-by-step explanation:

Please help!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

4. alternate exterior angles

5. 4.5

Alternate exterior angles 5.45 hope this helps

Kiara has 39 yards of edging to pit around a garden. She uses all the edging to make 20 sections that are the same length. How long is each section,in yards.rounded total he near was st hundredth.

Answers

Answer:

1.95

Step-by-step explanation:

39 * 20

39 * 20 = 1.95

1.95

Because 39/20= 1.95

please help thank youuuu

Answers

Answer:

C

Step-by-step explanation:

I honestly took an educated guess

Negative association or correlations are defined by one variable increasing while the other is constantly decreasing. The correct answer is C

JUST READ THE ATTACHMENT

Answers

Your answer would be 3,4,5
The anwser is (A 3,4,5)

HELP ASAP!!! (KHAN ACADEMY...USE IMAGES)

Answers

Answer:

8/3 is the unit rate of change

for graph: second point on the line coordinates will be (3,8)

8/3 = unit rate of change
(3,8) are coordinates
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