Mathematics Middle School

Please help me with this one also

Answers

Answer 1

Answer is A : x = 3.1

Have a good day <3

Answer 2

The answer is A 3.1 just add and multiply

Related Questions

Please help me!! Due in a few minutes!! Please!!!!

Answers

Answer:

I am guessing 0.36%

Step-by-step explanation:

9 divided by 4

Whats your favorite math problem?

Answers

One is the integral of e^x times cos x.
Use integration by parts.

Anything that is easy because math sucks for me

Which of the following would be considered as an event (left spinner, right spinner) that's a member of the sample space for Trevor's spins.

options:

(2, 2)

(3, 4)

(7, 1)

(2, 5)

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(3,4)

none of the others are possible

The best answer is B

WILL GIVE BRAINLIEST find vertex of parabola y=x^2-x

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Answer:

[tex](\frac{1}{2},-\frac{1}{4})[/tex]

I need some help checking and helping solve this project. So grateful this is such a good community.

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[tex]\color{indigo}\rule{1pt}{1000000pt}[/tex]

an experiment consist of rolling a fair number cube once. Identify P(>6).

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1/6 because there are 6 sides on a dice, and there is only one six. So therefore it’s 1/6

Answer:

1/6 is your answer

Step-by-step explanation:

i need help hah lol " It's too short. Write at least 20 characters to get a great answer. " there.

Answers

Answer:

54.872

Step-by-step explanation:

volume of a cube = s³

where s = side length

side length given here is 3.8

so volume = 3.8³ = 54.872

Answer:

54.872

Step-by-step explanation:

3.8 * 3.8 *3.8

The approximate volume of a cylindrical water tower is 7,540 ft3. The diameter of the water tower is 20 ft. What is the approximate height of the water tower?

A.
20 ft

B.
24 ft

C.
28 ft

D.
16 ft

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I think the answer is C

Are they correct? Why or why not? answer correctly thank you 10 points.

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Answer:

No.

Step-by-step explanation:

the system of equations provided in the condition consists of two linear equations in slope-interception form. The slope of the 1st equation is equal to the slope of 2d equation. It means, the lines are parallel. In other words, no solution of this system, they are not correct.

Answer: no.

show work on how to get the answer and what the answer is also brainliest

Answers

Answer:

at first : circumference = 25.12 = pi*d--------> d= 25.12/ pi

after one minute: circumference = 75.63= pi*d-------> d= 75.63/pi

Step-by-step explanation:

A) minute 1) diameter = 7.995946004446154 mm

minute 2) diameter = 24.07378170048816 mm

(I'll assume that you can round if necessary)

B) The diameter of the new ink spot is roughly 3X larger

(technically 3.01074841 X larger)

Answer the question below

Answers

Simple interest formula:

Total = start value x (1 + rate x time)

Total = 600 x (1 + 0.12 x 6)

Total = $643.20

answer: B. $643.20

Which solution can be simplified to determine when the object will hit the ground? t = t = t = t =

Answers

T= gt2 + v0t + h0 / h; where the yielding result will reveal the time when the object will reach the ground.

Answer:

the answer is c

Step-by-step explanation:

The voltage in an electrical circuit is multiplied by itself each time it is reduced. The voltage is 27/125 of a volt and it has been reduced three times. Write the voltage in exponential form, what was the original voltage in the circuit?

Answers

I belive this is the answer

x³ = 27/125; and

x = 3/5.

explanation:

Reducing the voltage 3 times would result in multiplying the unknown voltage, x, by itself 3 times; this gives us

x³.

The current voltage is 27/125; this gives us the equation

x³ = 27/125.

To solve this, take the cubed root of both sides:

∛(x³) = ∛(27/125)

x = (∛27)/(∛125)

x = (∛(3*3*3))/(∛(5*5*5))

x = 3/5

Which ordered pair is a solution of the equation shown?

25 points

Answers

Answer:

4y-2 / 3

Step-by-step explanation:

let’s find the y intercept

set x to zero to get y=3/4(0) +1/2

multiply 3/4 and 0 to get y=1/2

so the x value is 0 and the y value is 1/2

the ordered pair would be (0, 1/2)

there’s others but this is probably the easiest one to find

hope this helped!!

Ms. Johnson adds 2 cubes of suger to a 6 ounce cup of tea. Ms. Huáng adds 3 cubes of sugar to a 9 ounce cup of tea. which statement is true?

Answers

C is correct because 2/6 = 1/3 and 3/9= 1/3 as well so they both have 1/3 of their cup sweetened and are both equally sweet

C.)

the answer is c because the fractions are both equal to one another.

A kilometer is about 0.62 miles. Which student provides the best estimate to convert 3 kilometers to miles?

Goscia. 0.62 is about 0.60. 3 times 0.60 equals 1.80. Imani. 0.62 is about 0.60. 3 plus 0.60 equals 3.60. Rowan. 3 kilometers is close to 10 kilometers. 10 times 0.62 equals 6.20. Therese. 3 kilometers is close to 10 kilometers. 10 plus 0.62 equals 10.62.

Goscia
Imani
Rowan
Therese

Answers

Answer:

Goscia

Step-by-step explanation:

The most accurate one is Goscia, it's closest to the answer.

Assume one kilometer is equal to x and 0.62:

x = 0.62

3 kilometers would be equal to what? Well, 3 * 1 kilometers or 3 * x = 3.0.62 = 1.86. The closest answer to this is Goscia's.

What is the volume of this triangular pyramid?
help please!!!

Answers

Answer:

I believe it is 6

Step-by-step explanation:

The formula is length times width times height.

I think it might be 6

What is the area of the shaded region?

Answers

Answer:

14 in is it not?

Step-by-step explanation:

32. right triangle is half a square so I just multiplied 8 by 8 and divided it in half

ASAP I need help again

Answers

Answer:

your answer is 12 inches hon!

Step-by-step explanation:

if we divide 864 by 6 we get 144 and the square root of 144 is 12!

Answer:

Step-by-step explanation:

volume of a cube = 6 × (length of edge)^2

let the length = X

hence,

6X^2 = 864

X = 12

Given a non-zero rational number, a, and an irrational number, b, what can be said about the product of a and b?

Answers

the product of a non-zero rational number and irrational number is irrational

How much is 11 5 cents equal?
how much is 7 one dimes equal?

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11 x 5 = 55 cents and 7 x 10 = 70 cents. Hope this helps.

Answer:

11 x 5 cents is 55 cents
55 cents is equal to:
0.55 dollars
5.5 dimes
or 11 nickles

1 dime = 10 cents.
Since you have 7, you have a total of 70 cents.
70 cents is equal to:
0.7 dollars
or 14 nickles

In total you have:
1.25 dollars or
1 dollar and 25 cents.

Please help me, I will give brainliest to whoever answers first with the right answer!!!!

Answers

Answer:

its the third one

Step-by-step explanation:

cause if you muilty 16 and 10 you'll get the answer

Answer:

432

Step-by-step explanation:

To find the area of a trapezoid you use this equation:

A = 0.5 x h x (b1 + b2)

75 points i need help
Part D
Wendell plans to paint the doghouse after it’s built. He wants to know what the surface area of the outside of the doghouse will be. To find the surface area, first break up any composite shapes into rectangles and triangles. Which shape is considered a composite shape? When the shape is decomposed, what are the dimensions of the resulting shapes necessary for finding surface area?
Part E
Using the results from part D and the dimensions of the other surfaces, find the surface area of the outside of the doghouse. Be sure to include the bottom surface in your calculation.

Answers

The total surface area of doghouse is 5052 sq. inch and total volume of doghouse is 16200 cubic inch

What is volume?

In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

here, we have,

In the given question, we have to find which shape is considered a composite shape and when the shape is decomposed, then the dimensions of the resulting shapes necessary for finding surface area.

The graph of the given question is:

The slice will be shaped in the manner shown by the red-lined pentagonal shape A. The slice will have the red-lined shape, which is a rectangle as indicated B.

The slice will have the red-lined shape, which is a rectangle as shown in C. Only the Pentagon, which is made up of a triangle and a rectangle as seen in D, is a composite shape in the image.

In the given shape the dimensions of triangle is 18 inch, 18 inch, 30 inch.

The dimensions of rectangle is 18 inch, 30 inch.

7 rectangles and 2 triangles are the total number of decomposed shapes.

Total Area of above rectangles = 36x18 + 36x18 + 36x18 + 36x18 + 30x36

Total Area of above rectangles = 2592 + 1080 sq. inch

Total Area of above rectangles = 3672 sq. inch

Area of decomposed rectangles = 30 x 18 +30x 18

Area of decomposed rectangles = 1080 sq. inch

Area of triangles = 0.5 x 10 x 30 + 0.5 x 10 x 30

Area of triangles = 300 sq. inch

Total surface area = 3672 + 1080 + 300

Total surface area = 5052 sq. inch

Total volume = Total volume of cuboid + Total volume of upper triangular region

Total volume of cuboid = 30 x 36 x 18

Total volume of cuboid = 10800 cubic inch

Total volume of upper triangular region = 0.5 x 30 x 10 x 36

Total volume of upper triangular region = 5400 cubic inch

Total volume = 10800 cubic inch + 5400 cubic inch

Total volume = 16200 cubic inch

To learn more about total volume link is here

brainly.com/question/8419462

#SPJ2

. Diego received and spent money in the following ways last week.

For each example, write a positive or negative number to represent the change in money from his perspective.

i. He earned $30 dollars by cutting the neighbor’s lawn.
a

ii. He spent $14 going to the movies.
a

iii. He spent $3.55 on an ice cream cone.
a

b. What does 0 mean in this situation?

Type your response in the space below.

Answers

Answer:

earned $30 means +30

spent $14 means -14 (he used the money to buy something meaning he loses some money)

spent $3.55 means -3.55 (again, he uses some money to buy something which means he loses this amount of money)

In this situation 0 means he either didnt gain/earn money or he spent all his money.

I hope this helps!

Step-by-step explanation:

Diane has to give medicine to her cat every morning for the next 14 days. How many weeks is this?

Answers

2 weeks , half of 14 is 7 and there is seven days in a week so if she gives her cat medicine every morning for the next 14 days it will be 2 weeks.

Answer:

2 weeks

Step-by-step explanation:

There are 7 days in one week so 7+7 would equal two weeks which is 14

Help me I am a stone when it comes to absolute value in problems—
Explination too please

Answers

Answer:

31.) you put a dot on one and go to the right

32.) you put a dot on ten and go to the left

Step-by-step explanation:

the absolute value part is honestly just to throw u off, it also helps if you read it aloud. so for example in # 31. is saying the absolute value of b minus 5 is greater or equal to 1, you could also think of it as any number is greater or equal to one. hope that helps!

when dealing with an absolute value expression, let's keep in mind that the expression once we remove the bars it has a ± version, so if the expression were say hmmm |a + b| = 25, if we remove the bars we really have a duet, namely ±(a + b) = 25, same if we had |a + b| > 25, then ±(a + b) > 25.

Tis noteworthy, that unlike "equalities", inequalities vary mainly on that, when we divide or multiply or exponentialize by a negative value, the inequality sign does a horizontal flip, it changes, so let's proceed

[tex]\boxed{31}\\\\ |b-5|\geqslant 1\implies \pm(b-5)\geqslant 1\implies \begin{cases} +(b-5)\geqslant 1\\ b\geqslant 6\\[-0.5em] \hrulefill\\ -(b-5)\geqslant 1\\ b-5\stackrel{\stackrel{notice}{\downarrow }}{\leqslant} -1\\ b \leqslant 4 \end{cases}~\hfill 6~~\leqslant ~~ b~~\leqslant ~~4[/tex]

[tex]\boxed{32}\\\\ |-2r|\leqslant 10\implies \pm(-2r)\leqslant 10\implies \begin{cases} +(-2r)\leqslant 10\\ -2r\leqslant 10\\ r\stackrel{\stackrel{notice}{\downarrow }}{\geqslant} \cfrac{10}{-2}\\\\ r\geqslant -5\\[-0.5em] \hrulefill\\ -(-2r) \leqslant 10\\ 2r \leqslant 10\\ r\leqslant \cfrac{10}{2}\\\\ r \leqslant 5 \end{cases}~\hfill -5~~\leqslant~~ r ~~\leqslant~~5[/tex]

Check the picture below.

4 shirts cost $42. How much does 1 shirt cost?

50 pointss

Answers

If 4 shirts cost $42 then you would divide 42 by 4 to get your answer for 1 shirt.

So in this case 1 shirt would cost $10.50

Answer:

that d be $10.5

Step-by-step explanation:

...........

Please answer? I give brainliest

Answers

Answer:

C. 100>6x+20

Step-by-step explanation:

He saves 6 every week therefore you must multiply that by x the number of weeks and add by 20 as he started off with 20 cards.

in this activity you've seen answers with NUMBERS like r=3 and you've seen answers with VARIABLES like r= [tex]\frac{W}{2\pi }[/tex]

Answers

Answer:

I hope this is what it's asking

Step-by-step explanation:

the advantage would be that basically you don't have to do any real number calculations, you just take all of the steps and put it into one, so if u had real numbers you could just plug them in with the equation

Mike -(a boy) -and Kate -(a girl) -are -siblings. Mike- has -as -many -brothers -as -sisters. Kate -has -twice -as -many -brothers -as -sisters. How- many -girls,- counting- the- children- only -are -in -the -family? - Please answer!!
I will mark brainliest

Answers

Mike has 3 brothers and 3 sisters

Kate has 4 brothers and 2 sisters

all the girls in the family are 3

hope it helps...!!!

So mike has one more sister and one less brother than Kate (he is Kate’s brother)’ thank Kate (Kate is his sister) and Kate has one less sister than mike
So Kate has to have at least three brothers because mike has the same amount of sisters as brothers and Kate is an extra sister,
So mike has three sisters and Kate has two sisters because she is a sister and two times two is four, so mike has three brothers, but there fr four boys in total
So Kate has two sisters and four brothers (mikes brothers+1)
Mike has three brothers and three sisters (Kate’s sisters plus one)
FINAL ANSWER: 4 brothers and 3 sisters

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