Please explain and show me how to do question 8 please, I’m dying and I have a test!

Answer:

attached below

Step-by-step explanation:

Answer:

34cm3

Step-by-step explanation:

Volume of sphere = 4/3 pi x cube of radius

Radius =2cm , pi = 3.142

Volume = 4/3 x 3.142 x 2 x 2 x 2

Volume = 1.3333 x 3.142 x 8

Volume = 33.5cm3

Volume = 34cm3 to the nearest whole number

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Answer:

C) 19

Step-by-step explanation:

9+10 = 19

Answer:

B) 21

Step-by-step explanation:

Because 3×3=9 and 2×5=10

If you switch it, 3×2 and 3×5, that is equal to 6 and 15.

6+15=21

Option D: [tex](-1.6,0.8)[/tex] are the coordinates of the point P

Explanation:

It is given that "A coordinate grid shown from negative 2 to positive 2 on x-axis and negative 2 to positive 2 on y-axis. There are 4 grid lines between a whole unit of the grid".

Thus, the value of each grid is [tex]0.2[/tex]

It is also given that, "A point labeled P is shown at the intersection of 8 grid lines to the left of the y-axis and 4 grid lines above the x-axis".

Since the point P lies on the left of the y-axis and above the x-axis, the x-value will be negative and y-value will be positive.

Thus, the value of x-axis is given by

[tex]8\times0.2=-1.6[/tex]

And the value of y-axis is given by

[tex]4\times0.2=0.8[/tex]

Thus, the coordinates of the point P is [tex](-1.6,0.8)[/tex]

Hence, Option D is the correct answer.

Answer:

  the number is -1/3

Step-by-step explanation:

The given statement can be written in math terms as ...

  (1/5)(n -3) = 2n . . . the problem statement, using n to represent the number

  n -3 = 10n . . . . . . . . . multiply by 5

  -3 = 9n . . . . . . . . . . . subtract n

  -1/3 = n . . . . . . . . . . . divide by 9 and reduce the fraction

The number is -1/3.

_____

Check

  -1/3 -3 = -3 1/3 = -10/3

  1/5 of -10/3 = -2/3

  -2/3 is twice the number -1/3 . . . . . answer checks OK

Answer:

a the answer is a

Step-by-step explanation:

Answer:

The information you'll include is the amount of spaces moved from ABC to form A'B'C' which will be based on the opposite side.

To describe a translation of triangle ABC, you need to identify the direction and distance of the translation. The triangle's shape, size, and orientation remain the same after translation.

In describing a translation of triangle ABC, you would include the direction and distance of the translation. The direction could be up, down, left, or right. The distance would determine how far the triangle moves from its original position.

For instance, you may describe a translation as moving the triangle ABC 3 units to the right and 2 units down. It's important to note that under a translation, the shape of the triangle does not change. The size, shape, and orientation of triangle ABC remain consistent in the translated image.

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Answer:

975,462.00000

Step-by-step explanation:

975,462 rounded to hundred thousand

The number 975,462 rounded to the nearest hundred thousand is 1,000,000 because the ten thousand digit (7) is more than 5.

To round the number 975,462 to the nearest hundred thousand, you have to look at the ten thousand digit. In this case, that's 7. If this digit is 5 or more, you round up the hundred thousand digits. If it is less than 5, you leave the hundred thousand digits as it is. In our number, the ten thousand digit is 7, so we round up the hundred thousand digit which is 9 to 10. Since there is no '10' in the digit system, it overflows to the next digit, making it 1,000,000. So, 975,462 rounded to the nearest hundred thousand is 1,000,000.

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Answer:

The height of triangle EFG is 9 units

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the area of a square ABCD

The area of a square is equal to

[tex]A=b^2[/tex]

where

b is the length side of the square

we have

[tex]b=AB=6\ units[/tex]

substitute

[tex]A=6^2=36\ units^2[/tex]

step 2

Find the height of triangle EFG

The area of triangle EFG is equal to

[tex]A=\frac{1}{2}(b)(h)[/tex]

where

b is the base of triangle

h is the height of triangle

we have

[tex]b=EG=8\ units[/tex]

[tex]A=36\ units^2[/tex] ---> area of triangle EFG is the same that the area of square ABCD

substitute the given values in the formula

[tex]36=\frac{1}{2}(8)(h)[/tex]

solve for h

[tex]36=4h\\h=9\ units[/tex]

therefore

The height of triangle EFG is 9 units

The ratio of the amount of juice to the amount of ginger ale is 3 : 8

Step-by-step explanation:

Fruit punch = amount of juice + amount of gingle ale

(convert the mixed fraction into proper fraction)

Ratio of the amount of juice to the amount of ginger ale = (5/2) / (20/3)

⇒ (5/2)[tex]\times[/tex](3/20)

⇒ (1/2)[tex]\times[/tex](3/4)

⇒(3/8)

∴ The ratio of juice to ginger ale is 3 : 8

Answer:

25%

Step-by-step explanation:

Convert days into hours

3 days = 3×24 = 72 hours

18/72 × 100 = 25%

Answer:

0, because the house is already painted. If this isn't a riddle then, it should take 4 days because that is half the people, two times the workload per person.

Answer:

4 days

Step-by-step explanation:

6 workers takes 2 days.

That means that each worker works 6*2 = 12 worker days.

To get the same amount it takes 3 workers 4 days to get 12 worker days.

Answer:

$16.40

Step-by-step explanation:

First we find the how much the discount takes off

$20 × .18 = $3.60

So, the discount takes off $3.60, we then subtract that from $20

$20 - $3.60 = $16.40

Which then gives the price of the shirt as $16.40

Answer:

Step-by-step explanation:

100CM equal 1m

Therefore

39.4*100=3940cm

Answer:

I believe 4.5, 2 and 1/2

Answer:

4.5 , 2 , 1/2

Step-by-step explanation:

Because if you multiply 5 by 0.9, which is less than 1, you will get 4.5

If you multiply 5 by 0.4, which is less than 1, you will get 2

And finally if you multiply 5 by 0.1, which is less than 1, you will get 1/2

Answer:

Yes.

Step-by-step explanation:

You can use the triangle inequality theorem: the sum of any two sides must be greater than the third side. You can also just check the two smallest sides.

9+12=21

21>16   --> yes it is a triangle.

hope this helped!

If the sum of the lengths of any two sides of a triangle is less than or equal to the  length of the third side, then the triangle is not possible.

If a triangle has sides with lengths of 9, 12, and 16, notice that 9 + 12 or 21 is greater than 16. So the sum of the lengths of two sides of the triangle is greater than the length of the third side.

This means that the triangle with sides of lengths

9, 12, and 16 is possible.

Answer:

B. 6k^11

Step-by-step explanation:

2k^8 • 3k^3

The • sign means

multiplication

So 2k^8 x 3k^3

6k^8+3

6k^11

Final answer:

The librarian receives a total of 214 books, with the first box containing 136 books and the second box containing 78 books (58 fewer than the first).

Explanation:

To find the total number of books the librarian receives, we first need to determine how many books are in the second box. We are told that the second box has 58 fewer books than the first box, which contains 136 books. Therefore, we can calculate the number of books in the second box by subtracting 58 from 136.

The calculation for the second box will be: 136 books - 58 books = 78 books.

To find the total number of books, we then add the number of books in the first box to the number of books in the second box:

Total books = 136 books + 78 books = 214 books.

Thus, the librarian receives a total of 214 books.

Final answer:

Subtract 58 from 136 to find the number of books in the second box (78 books), then add the number of books from both the first and the second box to get the total (214 books).

Explanation:

The student has asked how to calculate the total number of books a librarian receives if the first box contains 136 books and the second box contains 58 fewer books than the first. To find the number of books in the second box, we subtract 58 from 136, which gives us 78 books. To find the total number of books received, we then add the number of books in both boxes together: 136 books from the first box plus 78 books from the second box equals 214 books in total.

Answer:Use the properties of equality and the distributive property to solve equations ... Although multi-step equations take more time and more operations, they can still be ... First “undo” the addition and subtraction, and then “undo” the multiplication and ... We need to “move” one of the variable terms in order to solve the equation.

Step-by-step explanation:

Answer:

If there is a variable term and a constant on each side of the equation, then you will need to use the addition or subtraction property of equality once to isolate the variable term and once to isolate the constant.

Step-by-step explanation:

Answer:

3.5

Step-by-step explanation:

3.5x16=56

Answer:

x=72.6

Step-by-step explanation:

use inverse trig because your finding a missing angle. use tan because you haved opp/adj

tan-1=(16/5)

x=tan-1(16/5)

*use a calculator

x=72.6

The the angle of elevation from the point the dog is standing on the ground to the cat is 72.6 degrees

We have given that a dog is standing 5 feet from the base of a tree, looking up at a cat that has climbed 16 feet up the tree

We have to find the angle of elevation

We can see in a figure.

The angle between the horizontal line of sight and the object.

use inverse trig because we are finding a missing angle.

use tan because we have given height of tree (one side) and a distance between dog and tree(second side)

[tex]tab(\theta)}= opp/adj[/tex]

Apply [tex]tan^-1[/tex] on both side we get,

[tex]\theta=tan-1(16/5)[/tex]

[tex]\theta=tan-1(16/5)[/tex]

[tex]\theta=72.6[/tex]

Therefore,the the angle of elevation from the point the dog is standing on the ground to the cat is 72.6 degrees

To learn more about the angle of elevation visit:

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Answer:

Ten added to the difference of six and four. Or, the difference of six and four added to ten.

Step-by-step explanation:

The word phrase for the mathematical expression 10+(6-4) is 'Ten plus the difference of six and four'. It is the representation of the arithmetic operation in a sentence format.

The word phrase for the mathematical expression 10+(6-4) is 'Ten plus the difference of six and four'. In this phrase, 'Ten plus' corresponds to the 10+ part of the expression. 'The difference of six and four' means you subtract 4 from 6, which corresponds to the (6-4) part of the expression.

The expression 10+(6-4) can be simplified using the order of operations. First, we need to subtract 4 from 6, which equals 2. Then, we add the result 2 to 10, which equals 12. Therefore, the word phrase for the expression 10+(6-4) is "Ten plus the difference of six and four."

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Answer:

Step-by-step explanation:

Multiplying two algebraic fractions produces a new algebraic fraction. Multiply the two numerators to get the new numerator and multiply the two denominators to get the new denominator. Then simplify by reducing the new fraction to lowest terms.

for example:

[tex]\frac{x}{y} \\[/tex]×[tex]\frac{a}{b}[/tex] = [tex]\frac{xa}{yb}[/tex]

Division of algebraic fractions

The procedure for dividing algebraic fractions is the same as the procedure for dividing common fractions.  Replace the division by a fraction by the multiplication by the reciprocal of that fraction, like this. Then carry out the multiplication of the two fractions as described above.

for example:

[tex]\frac{\frac{a}{b} }{\frac{x}{y} }[/tex]

can be written as

[tex]\frac{a}{b}[/tex]×[tex]\frac{x}{y}[/tex]= [tex]\frac{ax}{by}[/tex]

hope this answer helped you. pls mark as brainliest.

Answer:

i) b = 9

ii) m = -3/2

iii) another two ordered pairs on the graph can be (2, 6) and (8, -3).

Step-by-step explanation:

i.) equation of the line is y = mx + b

ii)  x  = number of letters in my first name  = 6 is the x-intercept

iii) y = number of letters in my last name = 9 is the y-intercept

iv) if x  = 0 then y-intercept is b. then 9 = (0 [tex]\times[/tex] m) + b. Therefore b = 9

v) if y = 0 then x -intercept is given by 0 = (6 [tex]\times[/tex] m) + 9.

Therefore 0 = 6m + 9   [tex]\Rightarrow[/tex]   6m = -9,   m = -3/2

vi) another two ordered pairs on the graph can be (2, 6) and (8, -3).

Divide 1440 by 6 to get 240 packs.

Answer:

y^4x^1+2y

Step-by-step explanation:

Answer:

8xsquareysquare (square=2 on right hand corner)

Step-by-step explanation:

2yx4xy

Answer:

The question is not complete or missing details. Here is a similar question ; Suppose the rate of growth of bacteria in a Petri dish is given by q(t)=2t, where t is given in hours and q(t) is given in thousands of bacteria per hour. If a culture starts with 3,000 bacteria, find a function Q(t) that gives the number of bacteria in the Petri dish at any time t. How many bacteria are in the dish after 4 hours? Round your answer to the nearest thousand and do not include units.

Step-by-step explanation:

The detailed steps are as shown in the attachment.

q(t)=2t

dq/dt = 2t

Integrating both sides as shown in the attachment.

Any other question can be approached the same way.

Answer: They are 37 feet apart each other

Step-by-step explanation:

We are told that two divers are at a certain distance between them. The first diver is at a depth of 122 ft and the second diver is at a depth of 159 feet.

Note we are talking about depth, since both divers are below sea level.

Now, if we want to know the distance that separates them, we only have to take the difference between both depths:

[tex]159 ft-122 ft=37 ft[/tex] This is the distance beweent both divers.

This means they have to reduce their distance by 2 feet in order to accomplish the safety rules.

Answer:

a=0

Step-by-step explanation:

Solve for a

4a + 12 = 2a +12

4a-2a=12-12

2a=0

a=0/2

a=0