Can someone help (8 grade math)

Can Someone Help (8 Grade Math)

Answers

Answer 1

Answer:

B) 110.92 u²

Step-by-step explanation:

to find the surface area, find the area of each side and add them together.

here are all 6 sides:

4.5 * 6.8

4.5 * 6.8

4.5 * 2.2

4.5 * 2.2

2.2 * 6.8

2.2 * 6.8

4.5 * 6.8 = 30.6

4.5 * 6.8 = 30.6

4.5 * 2.2 = 9.9

4.5 * 2.2 = 9.9

2.2 * 6.8 = 14.96

2.2 * 6.8 = 14.96

30.6 + 30.6 + 9.9 + 9.9 + 14.96 + 14.96

110.92


Related Questions

Question 13 (2 points)
There are a total of 56 students in the art club and the math club. The art club has 12 more students
than the math club. Write and solve a system of equations to find the number of students in each club.
Let x = students in the art club and y = students in the math club
Solution:
students in the art club and
students in the math club
Blank 1:
Blank 2:

Answers

Answer:

The math club has 22 students, and the art club has 34 students.

Step-by-step explanation:

Given that there are a total of 56 students between the art club and the math club, and that the art club has 12 more students than the math club, to determine how many students there are in each club, the following calculation must be performed:

X + X + 12 = 56

2X + 12 = 56

2X = 56 - 12

X = 44/2

X = 22

Thus, the math club has 22 students, and the art club has 34 students.

Help please Someone!!!

Answers

Answer:

Joshua saves 5 less. Its C.

Step-by-step explanation:

Tell me if u need an explanation.

Help please! I’m bad at math

Answers

Answer:

The answer should be 40

Step-by-step explanation:

85+55=140

180-140=40

HURRY PLEASE WILL MARK BRAINLIEST!!!!!

Answers

Answer: 80 perhaps

Step-by-step explanation:

Answer:

the answer is c 40 ft because to find the area is half of base times height

Step-by-step explanation:

8 times 10 = 80

80/2= 40

Jacob is standing on the observation deck of the Sears Tower in Chicago. The height of the

observation deck is 1450 feet. He sees his car being towed, which is parked on the street 5,128

feet from the base of the tower. Find the angle of depression. Round to the nearest tenth.

Answers

9514 1404 393

Answer:

  15.8°

Step-by-step explanation:

The relationship between angle trig functions and sides of a right triangle is summarized in the mnemonic SOH CAH TOA. Here, we're given the side opposite the angle (the height of the deck), and the side adjacent to the angle (the horizontal distance). So, the applicable relation is ...

  Tan = Opposite/Adjacent

  tan(angle) = 1450/5128

Then the angle is found using the inverse tangent function:

  angle = arctan(1450/5128) ≈ 15.8°

The angle of depression is about 15.8°.

The table and the graph each show a different relationship between the same two variables, x and y:



How much more would the value of y be in the table than its value on the graph when x = 11?
Group of answer choices
A. 100
B. 165
C. 395
D. 440

Answers

Answer:

165

Step-by-step explanation:

its the answer trust me rank me brainiest

Answer:

B. 165

Step-by-step explanation:

Table: x = 11 and y = 770

Graph: x = 11 and y = 605

770 - 605 = 165

Which of the following pairs of triangles are similar?

Answers

the second and the fourth

I NEED THIS QUICK HELP!




Pilar bought 2/3 pound of turkey. She ate 1/4 of the turkey that she bought for lunch.

How many pounds of turkey did she eat?

Enter your answer in the box as a fraction in simplest form.

Answers

Answer:

1/6 lbs

Step-by-step explanation:

2                 1                 1

-        X        -        =        -

3                  4                6

Answer: She ate 5/12 of the turkey.

Step-by-step explanation:

First, find a common denominator by multiplying each fraction by the denominator of the other. By doing this, you should get 8/12, and 3/12.

Next, subtract them!

ex: 2/3= 8/12

1/4=3/12

8/12-3/12=5/12

The measures of the acute angles of a right triangle are in the ratio 5:7

Answers

Answer:

37.5:52.5

Step-by-step explanation:

5u + 7u = 90

12u = 90

u = 7.5

 

So the angles are (5x7.5) =37.5 degrees

(7x7.5) = 52.5 degrees.

check the picture below & help please!!

how many hours?

Answers

Answer:

I think it should be 11/3

LOOK HERE IF YOU ANSWER CORRECTLY YOU PASS 8th grade



You get a loan for $2500 with a simple interst of 16% for 3 years. How much to you have to pay back?

Answers

Answer:

$3,700

Step-by-step explanation:

16% of 2500=400

400×3(years)=1200

2500+1200=3700

factorize: a^4+2xa³+a²x²-y^4

Answers

Answer:

(a^2+ax-y) (a^2+ax+y^2)

Step-by-step explanation:

a^4+2xa³+a²x²-y^4

(a^2+ax)^2-y^4

(a^2+ax-y) (a^2+ax+y^2)

9514 1404 393

Answer:

  (a^2 +ax -y^2)·(a^2 +ax +y^2)

Step-by-step explanation:

This can be factored as the difference of squares.

  a^4 +2a^3x +a^2x^2 - y^4 = a^2(a+x)^2 - y^4

  = (a(a+x) -y^2)(a(a+x) +y^2)

  = (a^2 +ax -y^2)·(a^2 +ax +y^2)

Whoever answers this question gets brainly
The instructions on a bottle of cough medicine state

that the dose for an adult is 20 milliliters. Tom’s

measuring device is marked in teaspoons. How many

teaspoons will Tom take for 2 doses during the day?

(Hint: 1 tsp ≈ 5 mL)



A 4 tsp

B 8 tsp

C 10 tsp

D 40 ts

Answers

Answer:

40

Step-by-step explanation:

Answer:

4.05768272

Step-by-step explanation:

Find the slope between the ordered pairs (3,8) (-2,6)

Answers

Answer:

2/5

Step-by-step explanation:

(y2-y1)/(x2-x1)=slope

8-6=2

3+2=5

slope is 2/5

Answer: The slope of the line is 0.4

Step-by-step explanation: I wish it help.

A group from school went on a field trip to visit the State Capitol. There were 61 total people. Approximately 15% of these adults. The rest were students. How many of the group was students? ​

Answers

Answer:

52 students or 51

Step-by-step explanation:

A few weeks ago, Kristen bought 10 apples from her local farmers' market. Today, the number of apples Kristen bought was 20% higher. How many apples did she buy today?

Answers

Answer:

12

Step-by-step explanation:

36+5 to the 3rd power as an expression

Answers

Answer:

the expression is (36+5)³

a. About how much does a textbook weigh? b. About how much does a car weigh? c. About how much does a mosquito weigh? d. About how long is a textbook? e. About how long is a car?

Answers

Answer:

a. About 0.907185 kg to 2.72155 kg

b. About 1857 kg

c. About 0.005 g

d. About 0.75 feet

e. About 15 to 16 feet

Step-by-step explanation:

These are all estimated measurements and may vary across different regions and jurisdictions.

If Sheila drove 152 km at an average speed of 95 km/h, how much time did her trip take?

(NEED TO SHOW YOUR WORK)

Answers

1.6 hours

152 km total divided by her speed, 95 km/h =1.6

1.6 hrs

152 divided by 95 equals 1.6 hrs

Hope this helps learned in math class and that is the answer

Pls give me BRAINLIEST

Susie has a bag with 9 hair pins, 7 pencils, 2 snacks, and 5 books. What is the ratio of books to pencils?

Answers

Answer:

5:7

Step-by-step explanation:

The answer should be 5:7! Hope it helps hehe

please help me with this​

Answers

the answer is y=-3/2+7

State the domain: a) 1/x

Answers

(-oo,0) U (0,oo) the two “o”s are symbols for infinity and U is union

-3x + 12 = 18 please help it’s urgent

Answers

Answer:

Move all terms that don't contain x to the right side and solve.

x = −2

Answer:

x=-2

Step-by-step explanation:

-3x-2=6

6+12=18

Find the value of x

Answers

Step-by-step explanation:

(4x-7)°=(7x-61)°

61-7=7x-4x

54=3x

x=18°

Which of the following represents a function?

Answers

Answer:

A.

Step-by-step explanation:

in order for a function to be a function, one input must only have one output.

We see that in option B, -1 has two outputs (10, 18)

In option c, we see that -4 has two outputs (2, -2)

In option D, we see that -3 has two outputs (5, 0)

This means A is the correct option because each input has only one output.

In the first week of​ July, a record 1100 people went to the local swimming pool. In the second​ week, 125 fewer people went to the pool than in the first week. In the third​ week, 130 more people went to the pool than in the second week. In the fourth​ week, 280 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four​ weeks?

Answers

In July:
First week:
Number of people went to the local swimming pool =1040
Second week:
110 fewer people went to the pool than in the first week
so,
Number of people went to the local swimming pool =1040-110
=930
Third week:
130 more people went to the pool than in the second week
so,
Number of people went to the local swimming pool =930+130
=1060
Fourth week:
228 fewer people went to the pool than in the third week
so,
Number of people went to the local swimming pool =1060-228
=832
Decrease in number of people over four week= number of people in first week - number of people in fourth week
Decrease in number of people over four week=1040-832
=208
now, we can find percentage
Percentage is

=20%.........Answer

Divide 1 1/2 divided by 1/4 in simplest form

Answers

Answer:

6

Step-by-step explanation:

1 1/2 divided by 1/4. Firstly you simplify the mixed number 1 1/2 to an improper fraction to make the process easier. So if it is simplified it would be 3/2.

Now you follow the division process and then simply the answer and it would be 6.

Answer:

Answer is 6

Step-by-step explanation:

Change 1 1/2 into 3/2

Multiply by the reciprocal: 3/2 x 4/1

3/2 x 4/1 = 12/2

12 divided by 2 = 6

Hope this helps :)

What is the slope of a line that passes through the origin and the point (-2,1)?

Answers

Answer:

The slope would be -1/2.

Step-by-step explanation:

Since, the midpoint of the segment joining the points P (0, -4) and B (8, 0),

= ( 4, -2 ),

Now, the slope of the line passes through the origin and the point ( 4, -2) is,

= -1/2

i think thats the answer HOPE IT HELPS YOU THOUGH

Jim is mailing packages. Each small package costs him $3.20 to send. Each large costs him $4.70. How much will it cost him to send 1 small package and 4 large packages?

Answers

Answer:

$3.20 for the small and $4.70 for the large packages.

Step-by-step explanation:

multiply 3.20 by 1 since that is the price of mailing a small package and you want to mail 1.

multiply 4.70 by 4 since that is the price of a large one and you want to mail 4.

3.20 x 1 =3.20

4.70 x 4=18.80

simply the expression in the simplest form​

Answers

Answer:

[tex]\frac{\sqrt[3]{20}}{5}[/tex]

Step-by-step explanation:

Let [tex]x = \sqrt[3]{\frac{4}{25}}[/tex], we proceed to show the procedure to determine the simplest form of this number:

1) [tex]\sqrt[3]{\frac{4}{25} }[/tex] Given.

2) [tex]\left(\frac{4}{25}\right)^{1/3}[/tex] Definition of cubic root.

3) [tex][4\cdot (25)^{-1}]^{1/3}[/tex] Definition of division.

4) [tex](4)^{1/3}\cdot [(25)^{-1}]^{1/3}[/tex]  [tex]a^{c}\cdot b^{c} = (a\cdot b)^{c}[/tex]

5) [tex]\{(4)^{1/3}\cdot [(25)^{-1}]^{1/3}\} \cdot \{[(25)^{-1}]^{2/3}\cdot [(25)^{-1}]^{-2/3}\}[/tex] Modulative and associative properties/Existence of multiplicative inverse/[tex]a^{b}\cdot a^{c} = a^{b+c}[/tex]

6) [tex]\{(4)^{1/3}\cdot [(25)^{-1}]^{-2/3}\}\cdot \{[(25)^{-1}]^{1/3}\cdot [(25)^{-1}]^{2/3}\}[/tex] Commutative and associative properties

7) [tex]\{(4)^{1/3}\cdot [(25)^{-1}]^{-2/3}\}\cdot (25)^{-1}[/tex]  [tex]a^{b}\cdot a^{c} = a^{b+c}[/tex]

8) [tex][(4)^{1/3}\cdot (25)^{2/3}]\cdot (25)^{-1}[/tex]  [tex](a^{b})^{c} = a^{b\cdot c}[/tex]

9) [tex][4\cdot (25)^{2}]^{1/3}\cdot (25)^{-1}[/tex] [tex](a^{b})^{c} = a^{b\cdot c}[/tex]/[tex]a^{c}\cdot b^{c} = (a\cdot b)^{c}[/tex]

10) [tex](2500)^{1/3}\cdot (25)^{-1}[/tex] Definition of power and multiplication.

11) [tex][(125)\cdot (20)]^{1/3}\cdot (25)^{-1}[/tex] Definition of multiplication.

12) [tex](125)^{1/3}\cdot [(20)^{1/3}\cdot (25)^{-1}][/tex] [tex]a^{c}\cdot b^{c} = (a\cdot b)^{c}[/tex]/Associative property.

13) [tex]5\cdot [(20)^{1/3}\cdot (25)^{-1}][/tex] Definition of cubic root.

14) [tex]5\cdot [(20)^{1/3}\cdot (5)^{-1}\cdot (5)^{-1}][/tex] Definition of multiplication/[tex]a^{c}\cdot b^{c} = (a\cdot b)^{c}[/tex]

15) [tex][(20)^{1/3}\cdot (5)^{-1}][5\cdot (5)^{-1}][/tex] Commutative and associative properties.

16) [tex](20)^{1/3}\cdot (5)^{-1}[/tex] Existence of multiplicative inverse/Modulative property

17) [tex]\frac{\sqrt[3]{20}}{5}[/tex] Definitions of cubic root and division/Result

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