Simplify the expression.
-81 ÷ (-9)
Please help

Answers

Answer 1

Answer:

-81/-9

both minus will be cut so

81/9

9

Step-by-step explanation:

the answer is 9


Related Questions

Consider the diagram.

2 triangles are connected at their hypotenuse to form a rectangle. The rectangle has a length of 7 meters and width of 6 meters.

Mia plans to build a fence to divide her rectangular garden into two triangular areas. Use the diagram to find the length of fence she will need to divide the garden. Round up to the nearest hundredth.



Mia will need a fence that is
meters long.

Answers

The length of fence she will need to divide the garden is 9.22 m.

What is a Rectangle?

A Rectangle is a quadrilateral having four sides and four right angles in which both sides are parallel and opposite to each other.

Pythagoras Theorem

The Pythagorean Theorem states that the sum of the squared sides of a right triangle equals the length of the hypotenuse squared.

Let us consider the length of the fence be 'x'  

Using Pythagoras Theorem,

x² = 6² + 7²

[tex]x^{2} =36+49\\x^{2} = 85[/tex]

x = 9.22 m

So, the length of fence is 9.22 m.

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Answer:

9.22

Step-by-step explanation:

edge

The circle graph shows how Elsa divides her time between all of the sports she plays per week.



Elsa played sports for 20 hours last week. How many more hours did she play baseball than volleyball?
Answers:
A:1
B:3
C:4
D:5

Answers

The number of more hours spent on baseball than volleyball is 3 hours. The correct option is B:3

Calculating time spent on sport

From the question, we are to determine how many hours Elsa played baseball than volleyball

From the given information,

Elsa played sports for 20 hours

From the circle graph,

She spent 25% of the time on baseball

Time spent on baseball = 25% × 20 hours

Time spent on baseball = (25/100) × 20 hours

Time spent on baseball = 0.25 × 20 hours

Time spent on baseball = 5 hours

For time spent on volleyball

From the circle graph, she spent 10% of the total time on volleyball

Time spent on volleyball = 10% × 20 hours

Time spent on volleyball= (10/100) × 20 hours

Time spent on volleyball= 0.1 × 20 hours

Time spent on volleyball= 2 hours

The number of more hours spent on baseball than volleyball

= 5hours - 2 hours

The number of more hours spent on baseball than volleyball = 3 hours

Hence, the number of more hours spent on baseball than volleyball is 3 hours. The correct option is B:3

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8x+5y=16 8x+10y=56 what strategy could you apply to use the linear combination method to solve the system?


Answers

Answer:

elimination

Step-by-step explanation:

grace likes jeffery what will she do ?

Answers

Answer:

2,964

Step-by-step explanation:

52 x 57 = 2,964

HELP ASAP THIS IS DO TOMORROW!

Answers

Answer:

The volume of the box is 250cm³

Step-by-step explanation:

V = Length * Width * Height

V = 5cm * 5cm * 10cm

V = 250cm³

Given:Height= 10 cmLength= 5 cmWidth= 5 cmTo find:

The volume of the given box (rectangular prism).

Solution:

[tex]V = whl[/tex]

[tex]V = 10 \times 5 \times 5[/tex]

[tex]\large\boxed{\sf{V = 250 \: {cm}^{3}}}[/tex]

Therefore, the volume of the given box (rectangular prism) is 250 cubic centimeters.

Find x if f(x)=2x-7 and f(x) = 18.

Answers

Answer:

x = 12.5

Step-by-step explanation:

f(18)=2x-7

18+7=2x

25=2x

x=12.5

Give brainiest please!

Hope this helps :)

Can one of u guys help me I need help asap

Answers

Answer:

See below ~

Step-by-step explanation:

The three inequalities (listed below) have been plotted on a graph :

y ≤ 8y ≥ -3x + 4y > 2x - 4

The elevator at the local mall has a weight limit of 1,800 pounds and requires that the maximum person allowance be no more than nine people. let represent the number of people. write an inequality to describe the maximum allowance of people allowed in the elevator at one time.

Answers

Answer: 9? I’m not sure but it seems like it’s 9 as it mentions it in the problem

Please help. I dont understand a thing. lol

Answers

Answer:

39 in²

Step-by-step explanation:

Area of triangle = 1/2 * b * h, where,

b = Base of Triangle

h = Height of triangle

Area of 4 triangles = 4 * 1/2 * 3 in * 5in

Area of 4 triangles = 2 * 3 in * 5 in

Area of 4 triangles = 30 in²

Area of square = a², where,

a = Each side of square.

Area of square = (3 in) ²

Area of square = 9 in²

Total surface area of pyramid = 30 inch² + 9 inch²

Total surface area of pyramid = 39 in²

Answer:

39 in^2 (Please mark me brainliest)

Step-by-step explanation:

3*3+3*2*5

=39

Using the slope formula, find the slope of the line through the given points.
(6,9) and (4,3)

Answers

Answer:

Slope is 3.

Step-by-step explanation:

Slope formula

[tex]m = \frac{\text{rise}}{\text{run}} = \frac{\text{change in y}}{\text{change in x}} = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

m ... slope

Two points on the line are (x1, y1) and (x2, y2).

Now let's insert the coordinates of points (6,9) and (4,3) in the slope formula.

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}\\\\m = \frac{9 - 3}{6 - 4}\\\\m = \frac{6}{2}\\\\m = 3[/tex]

You could also do [tex]m = \frac{3-9}{4-6}[/tex] and would get the same result.

Two stores have movies to rent.
• The first store charges a $10.50-per-month membership fee plus
$1.50 per movie rented.
• The second store has no membership fee but charges $2.50 per movie
rented.
What is the minimum number of movies a person would need to rent in a month
for the first store to be a better deal?

Answers

Answer:

4 movies because ďòê ánş vianna sausage says so i dont know im barely passing math myself

i just dont know the answer ​

Answers

Answer:


(3,7) (4,4) (1,2)

Step-by-step explanation:

180 degrees: (x, y) —> (-x, -y)

Logan's solution and reasoning for solving an equation are shown below:
Given
Step 1: x-10-50 Reason 1: Given
Step 2
x-10+10=50+10 Reason 2 Addition Property of Equality
Step 3
60
Reason 3 Simplity
Step 4:
<= 60
Reason 4: Division Property of Equality
Step 5.
x = 40
Reason 5: Simplity
Choose which reason is incorrect.
O Reason 2
O Reason 3
O Reason 4
O Reason 5

Answers

Answer:

Logan's solution and reasoning for solving an equation are shown below:

Given

Step 1: x-10-50 Reason 1: Given

Step 2

x-10+10=50+10 Reason 2 Addition Property of Equality

Step 3

60

Reason 3 Simplity

Step 4:

<= 60

Reason 4: Division Property of Equality

Step 5.

x = 40

Reason 5: Simplity

Choose which reason is incorrect.

O Reason 2

O Reason 3

O Reason 4

Step-by-step explanation:

Given the pyramid, calculate the SURFACE AREA and VOLUME. (please help ASAP)

Answers

Here is the volume for it 4680000 and here is the surface area 185986.84872275

NEED TO PASS HELP WILL GIVE BRAINLY!!!

Answers

Answer:

[tex]\bigodot[/tex] None of the other answers are correct.

Step-by-step explanation:

[tex]2b^2-3b+85=-5[/tex] (Given)

[tex]\implies 2b^2-3b+85+5=0[/tex]

[tex]\implies 2b^2-3b+90=0[/tex]

Comparing it with the general form of quadratic equation [tex]ax^2+bx+c=0,[/tex] we find:

a = 2, b = -3, c = 90

Next, we find the value of the discriminant [tex] b^2-4ac[/tex]

[tex] b^2-4ac= (-3)^2-4(2)(90)=9-720=-711<0[/tex]

[tex] \because b^2-4ac<0[/tex], which means the roots of the given quadratic equation are non-real or imaginary.

Thus, last option is the correct answer.

Joe has 7/8 yards of string. What is the maximum number of 1/16 yards of string Joe can be cut from the string? 11 points

Answers

Answer:

14

Step-by-step explanation:

7/8 = 14/16

The coordinates of the endpoints of the diameter of a circle are (-1, 5) and (3, -1). The center of the circle has coordinates

Answers

Answer: (1,2)

Step-by-step explanation:

The center of the circle is the midpoint of the diameter, so using the midpoint formula, we get the answer to be [tex]\left(\frac{-1+3}{2}, \frac{5-1}{2} \right)=\boxed{(1,2)}[/tex]

I need help PLEASE HELPP

Answers

Answer:

1 and 5 are corresponding angle

8 and 4 are corresponding angle

4 and 6 are alternate interior angle

2 and 8 are alternate exterior angle

7 and 3 are corresponding angle

2 and 6 are corresponding angle

3 and 5 are alternate interior angle

1 and 7 are alternate exterior angle

Why is apr an important tool for consumers

Answers

Answer:

APR, or annual percentage rate, is your interest rate stated as a yearly rate. An APR for a loan can include fees you may be charged, like origination fees. APR is important because it can give you a good idea of how much you'll pay to take out a loan.

RIGHT triangular prisms A and B are congruent. What is the volume of prism B? A) 420 in3 B) 1080 in3 C) 2160 in3 D) 32400 in3

Answers

Answer: B

Step-by-step explanation:

Write an equation in slope-intercept form for the line with slope 8 and y-intercept 9.

Answers

Answer:

y = 8x + 9

Step-by-step explanation:

Slope-intercept form of an equation is a fill-in-the-blank formula for writing an equation of a line. It is in the form:

y = mx + b

where m is the slope and b is the y-intercept (hence the name) In the problem slope is given, fill it in for m, next to the x. Y-intercept is given in the question also, fill it in in place of b.

y = 8x + 9

Prove .. help me pls

Answers

Answer:

Step-by-step explanation:

Illustrate on a number line the solution set of each pair of simultaneous inequalities. x>-2;-4 <x <2​

Answers

The intersection region will be between  -2 <x <2​ or x ∈ (-2, 2) if the two inequalities are x>-2  and -4 <x <2​

What is inequality?

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than, known as inequality.

We have two inequalities:

x>-2  and

-4 <x <2​

or

x ∈ ( -2, ∞) and x ∈ (-4, 2)

The intersection region will be(from the graph)

x ∈ (-2, 2)

Thus, the intersection region will be between  -2 <x <2​ or x ∈ (-2, 2) if the two inequalities are x>-2  and -4 <x <2​

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In how many ways can we color the $8$ vertices of an octagon each red, green, or blue, so that no two adjacent vertices are the same color

Answers

There are 258 ways to color the octagon such that no two adjacent vertices are the same color

How to determine the number of ways?

The given parameters are:

Sides, n = 8 --- the sides of an octagonColors, r = 3 i.e. red, green and blue

Since no two adjacent vertices are the same color, we use the following  chromatic polynomial of an octagon equation

Ways = (r - 1)⁸ + (r -1)

Substitute 3 for r

Ways = (3 - 1)⁸ + (3 -1)

Evaluate

Ways = 258

Hence, there are 258 ways to color the octagon

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What is the value of x?


29

12

7.3

25.2

Answers

Answer:

25.2

Step-by-step explanation:

Secant-Tangent Formula:

(whole secant) x (external part) = (tangent)^2

(41+12) * 12 = x^2

( 53) * 12 = x^2

636= x^2

Taking the square root of each side

sqrt(636) = x

25.2=x

Answer:

25.2

Step-by-step explanation:

This is an intersection of a tangent and a secant.

How do you add these two consecutive triangular numbers?
TR(4)+TR(3)

Answers

The n-th trianglar number is given by

[tex]T_n = \dfrac{n(n+1)}2[/tex]

Then

[tex]T_4 + T_3 = \dfrac{4\times5}2 + \dfrac{3\times4}2 = \boxed{16}[/tex]

Alternatively, the triangular numbers are defined recursively by

[tex]\begin{cases}T_1 = 1 \\ T_n = T_{n-1} + n & \text{for } n>1\end{cases}[/tex]

This means

[tex]T_1=1[/tex]

[tex]T_2 = T_1 + 2 = 3[/tex]

[tex]T_3 = T_2 + 3 = 6[/tex]

[tex]T_4 = T_3 + 4 = 10[/tex]

so that

[tex]T_3+T_4=\boxed{16}[/tex]

Can someone please help me with b and C questions ​

Answers

Answer:

(b)  33919

(c)  8 ¹/₃

Step-by-step explanation:

⇒ 317 × 107 = (300 + 10 + 7)(100 + 7)

                    = 300(100 + 7) + 10(100 + 7) + 7(100 + 7)

                    = 30000 + 2100 + 1000 + 70 + 700 + 49

                    = 30000 + 2000 + 100 + 1000 + 70 + 700 + 40 + 9

                    = 30000 + 2000 + 1000+ 700 + 100 + 70 + 40 + 9

                    = 30000 + 3000 + 800 + 110 + 9

                    = 30000 + 3000 + 800 + 100 + 10 + 9

                    = 30000 + 3000 + 900 + 10 + 9

                    = 33919

[tex]\begin{aligned} 5\frac{2}{3}+3\frac{1}{2}-\frac{5}{6}&=\dfrac{5 \times3+2}{3}+\dfrac{3 \times 2+1}{2}-\dfrac{5}{6}\\\\&=\dfrac{17}{3}+\dfrac{7}{2}-\dfrac{5}{6}\\\\& =\dfrac{17 \times 2}{3\times 2}+\dfrac{7\times 3}{2\times 3}-\dfrac{5}{6}\\\\ & = \dfrac{34}{6}+\dfrac{21}{6}-\dfrac{5}{6}\\\\ & = \dfrac{34+21-5}{6}\\\\ & = \dfrac{50}{6}\\\\&=8\frac{1}{3}\end{aligned}[/tex]

A group of 3 people are sharing chocolates.Each person wants 8 chocolates and each box has 4 chocolates.How many boxes do they need?

Answers

Answer:

6

Step-by-step explanation:

you times it and you get the answer

six because each person gets two boxes

Which of the following options have the same value as 10% of 33?
Choose 3 answers:
0.1.0.33
® 10.33
©
1
10
33
0.1.33
10
100
33
3o

Answers

Answer:

1

Step-by-step explanation:

A person invests 8000 dollars in a bank. The bank pays 6.25% interest compounded daily. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 10800 dollars

Answers

Answer:

4.8 years

Step-by-step explanation:

10 800 = 8000 e^(i t)        i = decimal interest per year     t = years

10800/8000 = e^(.0625 t)      ln both sides

.300 = .0625 t

t = 4.8 years

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