Answer:
1
Step-by-step explanation:
what a tricky question.
pemdas- parenthesis, exponents, multiplication, division, addition, subtraction.
8/2(2+2)
add parenthesis first
8/2(4)
then multiply / distribute
2(4) is 8
finally
8/8 is 1
Why did the people of the Neolithic era domesticate both plants and animals? They needed more reliable sources of food and supplies.They wanted more supplies to use to conquer other settlements. They had to find new ways to get more water for their people. They competed to become more advanced than other groups of people.
The correct option is " They needed more reliable sources of food and supplies".
Neolithic is termed the stone period. This is so because this was the evolution of the prehistoric humans that developed and discovered many of the things that are made up of stones.
The people of this era domesticated both flora and fauna that means plants and animals as the forest was their inhabitants, plants were their food eatables and animals were the ones that they can hunt, play, tame, and sometimes can also have them in their meals. They were using plants and animals with various methods and types.
Therefore, the option " They needed more reliable sources of food and supplies" is the correct answer.
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Answer: a
Step-by-step explanation:
They needed more reliable sources of food and supplies.
Your annual clothing bill went up from $677.15 last year to $783.17 this year. What is your annual percent of increase from last year to this year?
Answer:
15.7% just got it right
Step-by-step explanation:
Answer:
D) 15.66%
Step-by-step explanation:
Which of the following is the best estimate
of the square root of 90 ?
a. 9.1
b. 9.4
C. 9.7
To get the best estimate of the square root of 90 we will apply a short cut.
Square root of 90 will be in the form of a mixed fraction as [tex]a\frac{b}{c}[/tex] or in decimals.
Here, a = square root of a perfect square number nearest to 90.
b = Difference of 90 and the perfect square number
c = Double of 'a'
Nearest square number to 90 = 81
Square root of 81 = 9
So, a = 9
Difference in 90 and 81 = 9
So, b = 90 - 81 = 9
And double of 9 = 18
Therefore, c = 18
Hence, [tex]\sqrt{90}\approx9\frac{9}{18}[/tex]
[tex]\approx9.5[/tex]
So the nearest number given in the option may be 9.4
Therefore, Option B will be the answer.
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Carmelo's height is 2.12 m. Express this measurement in millimeters. Explain your thinking.
Answer:
2120 milimeters
Step-by-step explanation:
to convert meters to milimeters, you need to multiply your value by 1000, so in this case 2.12x 1000= 2120
Hope this helps
Figure A is a scaled image to Figure B
Answer:
The correct answer is 4.4.
Step-by-step explanation:
I hope this helps!
Brainliest?
Emil
If AB = 12 & BC = 7, find the
find the length of AC
Step-by-step explanation:
set up the statement then plug the numbers. from there you should be able to solve it like a regular algebra problem. hope this helps!
Select all the true statements.
A. p || q because ∠2 ≅ ∠3.
B. p || q because ∠5 ≅ ∠7.
C. r || s because ∠2 ≅ ∠4.
D. r || s because ∠5 ≅ ∠6.
E. r || s because ∠5 ≅ ∠7.
Help me figure out the last two please
Answer:
[tex]1)\ x = 5[/tex]
[tex]2)\ x = 14[/tex]
[tex]3) \ x = 15,\ y = 2[/tex]
Step-by-step explanation:
1) Given that M<1 = 95 + 7x and M<2 = 55 - x, you should look on the diagram to see what type of angles M<1 and M<2 are.
On the diagram at the top, angles 1 and 2 appear to be supplementary angles, meaning they add up to 180 degrees. You can apply this information to creating an equation:
M<1 + M<2 = 180°[tex](95 + 7x) + (55 - x) = 180[/tex]Now you can solve this equation by combining like terms on the left-hand side of the equation.
[tex]150+6x=180[/tex]Subtract 150 from both sides of the equation in order to isolate the variable x.
[tex]6x=30[/tex]Divide both sides of the equation by 6 in order to isolate the variable x completely.
[tex]x=5[/tex]2) You are given that M<3 = 5x + 12 and M<4 = 7x - 16, so look on the diagram at the top to find out what type of angles they are.
Angles 3 and 4 appear to be alternate exterior angles, meaning that they are equal to each other as stated by the Alternate Exterior Angles Theorem. You can use this information to make an equation where M<3 = M<4.
M<3 = M<4[tex]5x+12=7x-16[/tex]Subtract 5x from both sides of the equation, and add 16 to both sides of the equation.
[tex]28=2x[/tex]Divide both sides of the equation by 2 to isolate the variable x completely.
[tex]14=x \rightarrow x=14[/tex]3) Given that M<1 = 7y + 16, M<2 = 2x, and M<3 = 4x - 30, look on the diagram at the bottom to find out what type of angles they are.
Since angles 2 and 3 include an "x" variable, you should start with them first in order to be able to solve for x. Angles 2 and 3 are complementary angles, meaning that they are equal to each other based on the Complementary Angles Theorem. Translate this information into an equation:
M<2 = M<3[tex]2x=4x-30[/tex]Subtract 2x from both sides of the equation and add 30 to both sides of the equation.
[tex]30=2x[/tex]Divide both sides of the equation by 2 in order to isolate the variable x completely.
[tex]15=x \rightarrow x=15[/tex]Now to solve for y - based on the diagram, you can see that angle 1 and angle 2 are vertical angles, meaning that they are equal to each other based on the Vertical Angles Theorem.
You can make them equal to each other in an equation:
M<1 = M<2[tex]7y+16=2x[/tex]We solved for x and know that it is 15, so substitute 15 into the equation for x.
[tex]7y+16=2(15)[/tex][tex]7y+16=30[/tex]Subtract 16 from both sides of the equation.
[tex]7y=14[/tex]Divide both sides of the equation by 7 to isolate the variable x.
[tex]y=2[/tex]Hope this helped! Comment below if you have any clarifying questions.
A model of a tractor-trailer is shaped like a rectangular prism and has a width of 2 in., a length of 11 in., and a height of 4 in.. The scale of the model is 1 font size decreased by 10 : font size decreased by 10 34. How many times the volume of the model is the volume of the actual tractor-trailer?
Answer:
The volume of the actual tractor-trailer is 2992 in³
Step-by-step explanation:
To determine how many times the volume of the model is the volume of the actual tractor-trailer,
First, we will determine the volume of the model tractor-trailer.
Since, the model tractor trailer is shaped like a rectangular prism, the volume of the model tractor-trailer can be calculated using the formula for volume of a rectangular prism.
Volume of rectangular prism = length × width × height
From the question,
length = 11 in
width = 2 in
and height = 4 in
∴ Volume of model tractor-trailer = 11 in × 2 in × 4 in
Volume of model tractor-trailer = 88 in³
From the question,
The scale of the model is 1 font size decreased by 10 : 34 font size decreased by 10.
That is 1 : 34
Then, if the the volume of the actual tractor-trailer is y, we can write that
[tex]\frac{1}{34} = \frac{88}{y}[/tex]
Then,
y = 88 × 34
y = 2992 in³
Hence, the volume of the actual tractor-trailer is 2992 in³.
Write an equation of the line that is parallel to line y = – 5x + 3 and passes the point (5, – 2).
Answer:
y = -5x +23
Step-by-step explanation:
If the line is parallel it has the same slope, so we only have to solve for the y-intercept.
To get from (5,-2) the y increases by 25
So y = -5x +23
PLEASE HELP. Write in algebraic form: “the square root of the sum of a and b”
Answer:
The answer is (a + b )^2
Step-by-step explanation:
Write in algebraic form: “the square root of the sum of a and b”
answer: [tex]\sqrt{a+b}[/tex]
Us plans to install a handrail around a rectangular skating rink. One of the rink's sides is 40 meters long and one of the rink's width is 20 meters wide. How many meters of handrail does Gus need to cover the perimeter of the rectangular skating rink?
Given :
Length of rink, L = 40 meters.
Width of rink , W = 20 meters.
To Find :
How many meters of handrail does Gus need to cover the perimeter of the rectangular skating rink.
Solution :
We know, perimeter is given by :
[tex]P=2(L+W)[/tex]
Putting value of L = 40 meters and W = 20 meters, in above equation , we get:
[tex]P=2(40+20)\ meters\\\\P=120\ meters[/tex]
Therefore, the perimeter of the rectangular skating rink is 120 meters.
Hence, this is the required solution.
What is the slope of a line passing through the points (2, 5) and (0, – 4)?
Enter your answer in the box.
PLEASE HELP AND HURRY
Answer:
I think it's 4?
Step-by-step explanation:
I used Desmos, a graphing calculator. After plotting the points and drawing a line, I counted 4 points up and 1 point over to get to the next point. 4/1 =4
5. [02.06]
Which of the following is the correct graph of the solution to the
inequality - 82 -5x + 2 > -38? (1 point)
O
- 1
0
1
2
3
4
5
6
-9-8-7 -6 -5 -4 -3 -2
7
8
9
-2 -1
0
1
2
3
4
-9-8-7 -6 -5 -4 -3
5
6
7
8
9
O.
-9-8-7-6
-5 -4 -3 -2 -1
0
1
2
3
4
5
6
7
8
9
-1
0
-9-8-7 -6 -5 -4 -3 -2
2
3
4
5
6
7
8
9
Answer:
2.14
Step-by-step explanation:
The solution to the inequality is 2 ≤ x < 8.
What is meant by mathematical inequality ?A mathematical inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.
Here,
The mathematical inequality given is,
8 ≥ -5x + 2 > -38
Subtracting 2 from all sides,
-8 - 2 ≥ -5x + 2 - 2 > -38 - 2
So, -10 ≥ -5x > -40
Dividing by -5 on all sides,
Therefore,
2 ≤ x < 8
That means the inequality is reserved.
Hence,
The solution to the inequality is 2 ≤ x < 8.
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Attaching the image file here.
what is the solution to -(6m+8) =4(17 - m)
Answer:
m=-38
Step-by-step explanation:
-(6m+8)=4(17-m)
We move all terms to the left:
-(6m+8)-(4(17-m))=0
We add all the numbers together, and all the variables
-(6m+8)-(4(-1m+17))=0
We get rid of parentheses
-6m-(4(-1m+17))-8=0
We calculate terms in parentheses: -(4(-1m+17)), so:
4(-1m+17)
We multiply parentheses
-4m+68
Back to the equation:
-(-4m+68)
We get rid of parentheses
-6m+4m-68-8=0
We add all the numbers together, and all the variables
-2m-76=0
We move all terms containing m to the left, all other terms to the right
-2m=76
m=76/-2
m=-38
The solution to the given equation is [tex]-38[/tex]
We are given -(6m+8) =4(17 - m) Open the bracket in both side by multiplying (-) to the terms at left hand and 4 to the terms at right hand[tex]-6m - 8 = 68 - 4m[/tex]
Select like terms[tex]-6m + 4m = 68+8[/tex]
Simplifying,[tex]-2m = 76[/tex]
[tex]m= \frac{-76}{2}[/tex]
[tex]= -38[/tex]
Therefore, the value of m is[tex]-38[/tex]
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Here is an inequality for the graph that one of your
classmates created on screen 2. Help them out by fixing
the inequality to correctly represent the domain of the
function.
Answer:
44
Step-by-step explanation:
What is the inverse function of f(x)=-6x-7?
f-1(x) =
Answer:
[tex]f^{-1}(x)[/tex] = [tex]-\frac{x+7}{6}[/tex]
Step-by-step explanation:
y = -6x-7?
x = -6y - 7
Add 7 on both sides
x + 7 = -6y
Divide -6 on both sides
y = [tex]-\frac{x+7}{6}[/tex]
Question 8 of 12
Use the distributive property to remove the parentheses.
3 (3+x)
Answer:
9+3x
Step-by-step explanation:
3 (3+x)
Distribute
3*3 + 3*x
9+3x
Two pounds of apples cost $3.98. Six pounds cost $11.94.
What is the rate of change for the cost of apples?
Answer:
$7.96
Step-by-step explanation:
= $11.94-$3.98
= $7.96
Iif two pounds of apples cost $3.98. Six pounds cost $11.94 then 2 pounds is the rate of change for the cost of apples
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
Two pounds of apples cost $3.98
Six pounds cost $11.94.
We need to find the rate of change for the cost of apples
The cost changes from $ 3.98 to $ 11.94
while the number of pounds of apples changes from 2 to 6.
Thus the rate of change is
11.94-3.98/6-2
2 pounds
Hence, if two pounds of apples cost $3.98. Six pounds cost $11.94 then 2 pounds is the rate of change for the cost of apples
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If Olivia traveled 70 miles in 2.5 hours, how many miles will Olivia travel in 9.5 hours at the same constant speed?
Answer:
266 miles
Step-by-step explanation:
You need to divide 70 by 2.5 equals 28. Than you need to times that by 9.5.
Answer:
266
Step-by-step:
70 divided by 2.5= 28
28 times 9.5= 266
What is the common difference of the following arithmetic sequence? 120, 108, 96, 84, ...
Answer:
-12
Step-by-step explanation:
120-108 = -12
8 - 2d = c 40 + 3d = 2
Answer:
sd=4
#=^;_/#"
r3dplusesay
geometry angles trynna get 100
Answer:
79 degrees
Step-by-step explanation:
As BD bisects the angle, it actually divides it into two equal angles
Hence, measure of ABD= 1/2 x measure of ABC
Hence, measure of ABD= 1/2*158
=79 degrees
what is the percent change from 50 to 22
Answer:
56% decrease
Step-by-step explanation:
Answer:
There was a 56% decrease
Step-by-step explanation:
g(x) = {-2x+1, x <3
(-x+3, X23
What is g(2) ?
Answer:
C2 gin baby keep it up yesyesyes
7x+5=3x-13 + 2x
Please help
Answer: x = -9
Step-by-step explanation:
3x + 2x = 5x
7x + 5 - 5 = 5x - 13 - 5
Subtract 5 from both sides
7x + 5 - 5 = 5x - 13 - 5
simplify
7x = 5x - 18
Subtract 5x from both sides
7x - 5x = 5x -18 - 5x
simplify
2x = -18
divide both sides by 2
[tex]\frac{2x}{2}[/tex] = [tex]\frac{-18}{2}[/tex]
simplify
x = -9
25=2(6-3x) + 1
Ehat is the answer for x?
Answer:
x = - 2Step-by-step explanation:
25 = 2(6 - 3x) + 1
25 = 12 - 6x + 1
25 - 12 - 1 = -6x
12 = -6x
x = 12 / -6
x = - 2
another one this one has two anwser first up is A
Answer:
g = 6
Step-by-step explanation:
3.8g + 8 = 1.8g + 20
Subtract 1.8g from both sides;
2g + 8 = 20
Subtract 8 from both sides;
2g = 12
Divide both sides by 2;
g = 6
You can check if the value of g is correct by plugging in the value of g to the equation. If your check does not it doesn't mean your answer is not correct because sometimes it can be a no solution equation which means that there is no solution to the equation.
Check:
3.8(6) + 8 = 1.8(6) + 20
22.8 + 8 = 10.8 + 20
30.8 = 30.8
It means its correct
Six times the sum of a number and 8 equals 5.
Into an equation
Answer:
6*(x+8) = 5
Step-by-step explanation:
let x be the unknown number
We multiply 6 times the sum of a number and 8
That is equal to 5
6*(x+8) = 5
The sum of three consecutive odd integers is 105. What are the three numbers?
Answer:
33 , 35 , and 37
Step-by-step explanation:
Let the middle number of the three consecutive odd numbers be n . Therefore the other two numbers will be n − 2 and n + 2
Answer:
33, 35, 37
Step-by-step explanation:
PLZ give me a brainlist
