(9x^3+2x^2-5x+4) - (5x^3-7x+4) Show your work.

Answer:

D

Step-by-step explanation:

To be completely honest, I don’t really remember 7th grade math, but from what I can recall, you are supposed to use rounding and counting up and down. You have to keep an eye out for the numbers already provided in the number line. It can really help you understand what you’re supposed to do.

Answer:

7.) 53.38

8.) 18.84

9.) 87.92

Step-by-step explanation:

7.)

For the first question, we can see that the diameter is given. So, we will want to divide that diameter by 2 to get the radius. 17 ÷ 2 = 8.5.

The formula for finding the circumference is 2 × π × 8.5

2 × 3.14(π) = 6.28.

6.28 × 8.5 = 53.38

8.)

For the second question, we can see that the radius is now given to us which is 3ft.

The formula for finding the circumference is 2 × π × 3

2 × 3.14(π) = 6.28.

6.28 × 3 = 18.84

9.)

For the third question the raduis is also given to us, which is 14 in.

The formula for finding the circumference is 2 × π × 14.

2 × 3.14(π) = 6.28.

6.28 × 14 = 87.92

-kiniwih426

Answer:

41

Step-by-step explanation:

41, 41, 41, 44, 90

other answers would have been:

41, 41, 44, 50, 90

41, 41, 44, 58, 90

41, 41, 44, 66, 90

Answer:

10) acute triangle

13) right triangle

Step-by-step explanation:

all triangles have angles that add up to 180 degrees

find the third angle of the triangle by subtracting the known angles from 180

180-75-78=27

acute triangles have no angles that surpass 90 degrees which fits that triangle's description

180-54-36=90

since one angle is 90 degrees, it is a right triangle

Answer:

[tex]\huge\boxed{\bf\:10) \: Acute \: angled \: triangle}[/tex]

[tex]\huge\boxed{\bf\:11) \: Right \: angled \: triangle}[/tex]

Step-by-step explanation:

▪︎ Question 10 :

We need to find the missing angle at first. Take it as 'x' .

We know through the angle sum property of a triangle that the total sum of all the angles in a triangle will sum up to 180°. Hence,

75° + 78° + x° = 180°

153° + x° = 180°

x° = 180° - 153°

x° = 27°

Then, since all the angles are less than 90°, we can say that the triangle is an acute angled triangle.

[tex]\rule{150pt}{2pt}[/tex]

▪︎ Question 11 :

Just like the above question, we need to find the missing angle at first. Take it as 'y' .

The total sum of all the angles in a triangle will sum up to 180° (angle sum property of triangles). Hence,

36° + 54° + y° = 180°

90° + y° = 180°

y° = 180° - 90°

y° = 90°

Since, one angle is equal to 90°, the given triangle is a right angled triangle.

[tex]\rule{150pt}{2pt}[/tex]

Answer:

The zeros are 0,3,2

Step-by-step explanation:

Heres a graph

Answer:

The answer to this question would be c

Answer:

total length: 2 1/6 ft   Leftover: 4 5/6 ft  How many: 2

Step-by-step explanation:

Total length: add 2/3ft and 1 1/2 ft together.

Leftover: Subtract 2 1/6ft from 6ft

How many: Multiply 2 1/6 by 2

Answer:

What is the total length of board that Hannah needs? 2 5/6 foot board

Step-by-step explanation:

Hannah needs 2 2/3 boards not 1

According to the question,

The ratio of almond flour to coconut flour is 7:38

so,

the volume of the almond flour used in a day ,in terms of cups would be

[tex] \rightarrow \frac{180 \times 7 }{7 + 38} \\ [/tex]

[tex] \rightarrow \frac{1,260 }{45} \\ [/tex]

[tex] \rightarrow28[/tex]

hence ,28 cups of almond flour would be required to meet the need to prepare the mixture for a day.

______________________________________

volume of coconut flour required in a day ,in terms of no. of cups would be

[tex] \rightarrow \frac{180 \times 38 }{7 + 38} \\ [/tex]

[tex] \rightarrow \frac{6,840 }{45} \\ [/tex]

[tex] \rightarrow152[/tex]

hence ,152 cups of coconut flour are required to make the mixture.

_______________________________________

Given that,

The ratio of almond flour to coconut flour is 7:38

7:38 = 28:152

7:38 = 7 :38

LHS = RHS

hence , verified ✓

Let almond be 7x and coconut be 38x

ATQ

Total almond cupls=4(7)=28cups

Answer:

11x11= 1

1/2x11x10x4

=220

121+220=341

Answer:

Your answer would be A. RSTU results from a translation of ABCD is not true.

Step-by-step explanation:

when you look at the images, it states the figure RSTU backwards, meaning, that it had to be reflected over the y-axis at some point, not a translation because a translation could not reflect a figure like a reflection can.

Answer:

x = 12

Step-by-step explanation:

Answer:

-29

Step-by-step explanation:

(-4 + -3) x 2^2 - 1

follow order of operations PEMDAS

Parentheses:

(-4 + -3) x 2^2 - 1

(-7) x 2^2 -1

exponents:

(-7) x 4 - 1

multiplication

-28 - 1

subtraction

-29

Answer:

[tex]beinggreat78~here~again![/tex]

I posted the answer and steps on one of your duplicate questions.

Just incase it was not seen, the answer is -29

Answer:

X=15

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

x = 15

Step-by-step explanation:

4x+70=9x-5

-4x       -4x

______________

70 = 5x - 5

+5           +5

______________

75 = 5x

/5     /5  

_____________

15 = x

Hope this helps :)

(If you need this explained in words let me know)

Answer:

$108

Step-by-step explanation:

18 dollars times 6 equals 108.

Answer:

108 dollars

Step-by-step explanation:

Since so far Caleb saved $18 and the skateboard he wants to buy is 6 times as great as the amount he saved, then you multiply 18 and 6 together which equals $108.

Therefore, the cost of his skateboard is $108.

Answer:

Tbh I am not sure but it's a semi-circle prism or like semi cylinder (I think) but usually semi-circles themselves will not tessellate bc circles have no angles and when u line them up next to each other there will be gaps between them and one of the tessellation rules is that no overlapping or gaps so yeah

I am sorry lol if that's all wrong but my answer is no, I don't think that this figure is a tessellate plane

9 * 25 = 225

225 - 6 = 219

There are 219 chairs left.

Answer:

219 Chairs are left.

Step-by-step explanation:

[tex]\rightarrow[/tex] Each row has 25 chairs. And there are total 9 rows.

So, total number of chairs = 25×9

= 225

➾ Workers removed 6 chairs, so left number of chairs = 225-6

= 219 chairs.

____________________________________

Hope it helps you:)

Answer:

try c 235.5

Step-by-step explanation:

15 x 5=75 x 3.14 = 235.5

sorry if im wrong

Answer:

125π

392.7

Step-by-step explanation:

V=1/3hπr² is the formula for the volume of a cone.

V = 1/3(15)π(5)²

V = 5π25

V = 125π

V = 392.7

Answer:

I would say high. The data sets are completely identical besides column 17

Answer: (C) 37.68 m

Step-by-step explanation:

    We can use a formula to help us solve for the circumference of this circle.

        C = 2πr

        C = 2π(6)

        C ≈ 37.68 m

The circumference is about 37.68 m, so the answer to your question is option C.

Answer:

-5? (negative five)

Step-by-step explanation:

i'm not sure, i'm not in the same grade level as you, but i tried my best

I saw a problem similar as this but it was subtraction instead of addition, and the answer for the problem was 5, so if this problem was subtraction, the answer has to be the negative of the number five, so that's how i came up with the answer, negative 5

Hope i am correct!

Answer:

Step-by-step explanation:

Here is the equation for this problem:

2 1/2 + 1 3/4 + x = 12

To add 2 1/2 and 1 3/4, revert the fractions into mixed numbers, and then change the denominator to the LCM (Lowest Common Denominator)

3/2 + 7/4 + x = 12

The lowest common denominator, in this case, is 4. 7/4 stays the same because the denominator is already 4, but we need to multiply the numerator and denominator of 3/2 by two to get the denominator to 4. (Whatever you do to the numerator, you have to do to the denominator, and vice versa)

3 x 2 = 6

2 x 2 = 4

Now, the equation looks like this:

6/4 + 7/4 + x = 12

Now add the fractions. The denominator stays the same, but the numerators are added together.

6/4 + 7/4 = 13/4

Now, you can revert 13/4 back to a mixed number

13/4 = 3 1/4

The equation should look like this now:

3 1/4 + x = 12

Now subtract 3 1/4 from both sides (Meaning subtract 3 1/4 from 3 1/4 to cancel it out and also subtract 3 1/4 from 12 as well)

12 - 3 1/4 = 8 3/4

Now, it should look like this:

x = 8 3/4

You could change the 8 3/4 into a decimal as well, which would look like this:

x = 8.75

Here is a summary of the whole equation:

2 1/2 +  1 3/4 + x = 12

3/2 + 7/4 + x = 12

6/4 + 7/4 + x = 12

13/4 + x = 12

3 1/4 (-3 1/4) + x = 12 (-3 1/4)

x = 8 3/4 or 8.75 acres

Answer:

Lisa has 8 3/4 acres left for home sites

There will be 7.75 acres of land left for home sites.

Mixed fractions are type of fractions which includes both a whole part and a fractional part.

It is of the form a [tex]\frac{b}{c}[/tex], where a is the whole part and b/c is the fractional part. This actually implies that a +  [tex]\frac{b}{c}[/tex]. So we can do the cross multiplication to change the mixed fraction into improper fraction.

Total land for housing development = 12 acres

Land covered by park = 2 [tex]\frac{1}{2}[/tex]

                                     = (2 × 2 + 1) / 2

                                     = 5/2 acres

Land covered by paved areas = 1 [tex]\frac{3}{4}[/tex]

                                                  = (1 × 4 + 3) / 4

                                                  = 7/4 acres

Total land covered by park and paved areas = [tex]\frac{5}{2}[/tex] + [tex]\frac{7}{4}[/tex]

                                                                           = [tex]\frac{10}{4}[/tex] + [tex]\frac{7}{4}[/tex]

                                                                           = [tex]\frac{17}{4}[/tex]

                                                                           = 4.25 acres

So the remaining land = 12 - ([tex]\frac{5}{2}[/tex] + [tex]\frac{7}{4}[/tex])

                                     = 12 - 4.25

                                     = 7.75 acres

Hence Lisa can build the home sites in the remaining 7.75 acres of land.

To learn more about Mixed Fractions, click :

https://brainly.com/question/29264210

#SPJ2

Answer:

Assuming the area is made up of a square and a semicircle.

Perimeter

The side length of the square = 18 ft

We can see 3 full side lengths plus one side length from which we need to subtract 12 ft (see attached diagram).

⇒ perimeter of the square = (3 x 18) + (18 - 12)

                                                          = 54 + 6

                                                          = 60 ft

Circumference of a circle = [tex]\pi[/tex]d (where d is the diameter)

⇒ arc length of the semicircle = 1/2 circumference

                                                  = 1/2 · [tex]\pi[/tex] · 12

                                                  = 6[tex]\pi[/tex] ft

Total perimeter = 60 + 6[tex]\pi[/tex] = 78.8 ft (nearest tenth)

Area

Area of a square = s² (where s is the side length)

⇒ area of square = 18²

                             = 324 ft²

Diameter = 2r  ⇒  r = 1/2 diameter

Area of a circle = [tex]\pi[/tex]r²  (where r is the radius)

⇒ area of the semicircle = 1/2 · [tex]\pi[/tex] · 6²

                                         = 18[tex]\pi[/tex] ft²

Total area = 324 + 18[tex]\pi[/tex] = 380.5 ft² (nearest tenth)

Answer:

Point C

Step-by-step explanation:

it is 5 units negative wise, on a 8 point scale.

Answer: 5

Step-by-step explanation:

Answer:

-7.4

Step-by-step explanation:

It's only one less than -7.5

Answer: e=11.75h

Hope this helps :

Answer:

[tex]Here~you~go![/tex]

The answer is 5:19. Why? Because you add all the fruits together, and then compare them to the amount of peaches.