3(x+7) and ____x+ ____
Answer:
3x+ 21
hopes this helps
Distribute 3 in (x+7).
(3×x)+(3×7) = (3x)+(21)
Therefore, the answer is 3x+21
HELPPPPPPPPPP MEEEEEEE PLSSSSSS
Answer:
vertex is (2 , -21)
x = -2 +√10
y = (x-3)²+1
Step-by-step explanation:
x² - 4x - 17
(x² - 4x + 4) - 4 - 17
(x-2)² - 21
vertex is (2 , -21)
2x² +8x = 12
x² + 4x = 6
(x² +4x + 4) - 6 - 4
(x+2)² - 10
x+2 = √10
x = -2 +√10
y = (x-3)²+1
(7.36×10 9 )−(6.2×10 9 )
Answer:
[tex] \sf \: 104.4[/tex]
Step-by-step explanation:
(7.36)(10)(9)−(6.2)(10)(9)
=(73.6)(9)−(6.2)(10)(9)
=662.4−(6.2)(10)(9)
=662.4−(62)(9)
=662.4−558
=104.4
There are 3 islands A,B,C. Island B is east of island A, 8 miles away. Island C is northeast of A, 5 miles away and northwest of B, 7 miles away. What is the bearing needed to navigate from island B to C? Round to the nearest degree
Answer:
[tex]B = 38[/tex]
Step-by-step explanation:
This question can be illustrated using the attachment and the required bearing will be calculated using cosine theorem;
[tex]b^2 = a^2 + c^2 - 2ac\ CosB[/tex]
In this case:
[tex]b = 5[/tex]
[tex]a = 7[/tex]
[tex]c = 8[/tex]
[tex]<B = ??[/tex]
Substitute these values in [tex]b^2 = a^2 + c^2 - 2ac\ CosB[/tex]
[tex]5^2 = 7^2 + 8^2 - 2 * 7 * 8\ CosB[/tex]
[tex]25 = 49 + 64 - 112\ CosB[/tex]
[tex]25 = 113- 112\ CosB[/tex]
Collect Like Terms
[tex]25 -113=- 112\ CosB[/tex]
[tex]-88=- 112\ CosB[/tex]
Divide through by -112
[tex]\frac{-88}{-112}= \frac{- 112\ CosB}{-112}[/tex]
[tex]\frac{-88}{-112}= CosB[/tex]
Reorder
[tex]Cos\ B = \frac{-88}{-112}[/tex]
[tex]Cos\ B = 0.7857[/tex]
Take arccos of both sides
[tex]B = cos^{-1}(0.7857)[/tex]
[tex]B = cos^{-1}(0.7857)[/tex]
[tex]B = 38[/tex] --- (approximated)
Hence, the bearing is approximately 38 degrees
For what values of x would the following be true?
-2(x-3)<4
Answer:
x > 1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
-2(x - 3) < 4
Step 2: Solve for x
Divide -2 on both sides: x - 3 > -2Add 3 to both sides: x > 1Here we see that any value x greater than 1 would work as a solution to the equation.
Linear Review: Billy Bob recently purchased solar panels for his home. After 5 months he still owed 2850. He makes a $30 payment each month towards his loan. Build a model. Write an explanation for slope and y-intercept. How many months will it take Billy Bob to finish making payments.
Answer:
Step-by-step explanation:
B) The first step is to calculate the monthly payment using a present value (PV) of $59,000 , monthly interest rate of 7.60 /12 = 0.633333 %, and 60 periods, which = $1185.04 ; the second step is to add $50 to this monthly payment giving the new monthly payment of $1235.04 ; the last step is to calculate the time required to pay off the loan = 57.0740 months.
Shady Rivers summer camp has 188 campers this week. If there are 22 campers to each cabin, what is the least number of cabins needed?
The least number of cabins needed for campers is 8.
Given that, Shady Rivers summer camp has 188 campers this week.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
The least number of cabins needed = Total number of campers/Number of campers to each cabin
= 188/22
= 8.54
Therefore, the least number of cabins needed for campers is 8.
To learn more about the unitary method visit:
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can someone help me pleaseee :)
Answer:
#1 8 and all #2 is 2 and 2
Step-by-step explanation:
for the first part of both answer, you find the perpendicular line then for the second part of both answers you imagine what it would be like if you rotate it by roatateing the paper, or in my case my tablet
Write 2.454545... as a fraction in lowest terms
490909/200000 is the answer
Have a great day!
Stay safe and healthy!
Happy holiday seasons!
May I please have brainliest?
solve the value of x: x + 13.8 ≥ 20.23
Answer:
x≥6.43
Step-by-step explanation:
Let's solve your inequality step-by-step.
x+13.8≥20.23
Step 1: Subtract 13.8 from both sides.
x+13.8−13.8≥20.23−13.8
x≥6.43
What is the equation, in slope-intercept form, of a line that passes through the points (-2, 4) and (3, -1)?
Answer:
Step-by-step explanation: The equation of the line passing through the points (2, –1) and (5, –10) is y = -3x + 5 .Jun 9, 2017
What is the price of an article costing
Rs 1300 after levying 13 value Added Tax
find it
SP-?
CP-1300
VAT% - 13%
Answer: Rs 1469
Step-by-step explanation:
Coat of item = RS 1300
Value added tax = 13%
The price of the item will then be calculated as:
= 1300 + (1300 × 13%)
= 1300 + (1300 × 0.13)
= 1300 + 169
= Rs 1469
What is the constant rate of change?
A 2
B 4
C 1/2
D -2
Answer:
C- 1/2
Step-by-step explanation:
the graph shows a line that goes up 1 square, and to the right 2 squares. Put x over y and you get 1/2, your answer.
Mohamed purchased a car for $30,000. It deprecates by 25% of its current value every year. How much will the car be worth 3 years after it is purchased?
Answer:
$12,656.25
Step-by-step explanation:
year 1: 30,000-25%=22,500
year 2: 25,000-25%=16,875
year 3: 16,875-25%=12,656.25
PLEASEEEEEE HELP ASAP
WILL GIVE BRAINLIST!!
DONT JUST USE FOR POINTS, ACTUALLY ANSWER IT!
THIS IS FOR IXL BTW
Answer:
96
Step-by-step explanation:
180 - 31 - 53 = 96
Answer:
96 should be the right answer.
Step-by-step explanation:
straight line means 180 degrees. so:
53 + 31 + x = 180
84 + x = 180
make x the subject:
x = 180 - 84
= 96
What is = s
What is x=
Considering the similar triangles, the measures of the angles are given as follows:
s = w.x = y.What are similar triangles?Similar triangles share these two features:
Congruent angles, that is, angles that have the same measure.Proportional side lengths.For this problem, the triangles are similar, with the arrow representing the corresponding sides, moving from angle w to angle x in one triangle, and from angle y to angle s in the other triangle.
Hence the measures of the angles are given as follows:
s = w.x = y.More can be learned about similar triangles at brainly.com/question/11920446
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The temperature in Quebec City was 5 degrees Celsius at 4 pm. By midnight, the temperature dropped 15 degrees. A number line has points negative 20, blank, A, B, 0, 5, C, blank, D. Which point is a representation of the colder midnight temperature in degrees Celsius?
Answer: Point A
Step-by-step explanation:
The temperature at midnight is;
= 5 - 15
= -10°C
Looking at the number line, one can surmise that the scale is in multiples of 5. This means that C is 10, B is -5 and A is -10.
With point A being -10°C, it represents the colder midnight temperature.
Answer:
Point A
Step-by-step explanation:
We know that the temperature dropped 15 degrees, and that it was initially of 5°C. So, by midnight, the temperature will be of -10°C (5-15=-10).
We also know that the distance between points is of 5°C. So, the point that we have to mark is point A, which represents -10°C.
Rectangle ABCD has side lengths of 6 centimeters and 8 centimeters. Rectangle EFGH has side lengths of 9 centimeters and 12 centimeters. Determine the ratio of corresponding side lengths if ABCD is similar to EFGH.
1:3
2:3
3:1
3:2
Answer:
2/3
Step-by-step explanation:
6/9=8/12=2/3
........
Question 6
1 pts
Verizon charges a $100 initial contract fee, then $70 a month for a basic cell
phone plan. What is the slope (rate of change)?
Answer:
Slope is rate of change, so define your values.
-$100 is the initial fee
-$70 is charged per month
per month is the constant rate of change
70 is the slope
The slope (rate of change) of the function is 70.
What is a slope?In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction
If a line passes through two points (x₁ ,y₁) and (x₂, y₂) ,
then the equation of line is
y - y₁ = (y₂- y₁) / (x₂ - x₁) x (x - x₁)
To find the slope;
m = (y₂- y₁) / (x₂ - x₁)
Given:
Verizon charges a $100 initial contract fee,
then $70 a month for a basic cell phone plan.
Let the x be the number of months.
So, the equation,
y = 70x + 100
By comparing with the slope-intercept form,
y = mx + b, where m is the slope.
So, m = 70.
Therefore, 70 is the slope.
To learn more about the slope;
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A snack mix recipe calls for 1 1/2 cups of dip and 1/3 cup of vegetables. Cole wants to make the same recipe using 1 cup of vegetables. How many cups of dip will cole need.
Answer:
4 1/2 cups of dipStep-by-step explanation:
Let required amount be x
Using the ratio to find x:
1 1/2 ÷ x = 1/3 ÷ 1x = 1 1/2 × 3x = 3/2×3 x = 9/2 x = 4 1/2 cupsI need help on what a slope and y-intercept and how to find the equation
Answer:
y=mx+b is the slope intercept form.
Step-by-step explanation:
m is the slope (how the line is moving across the graph)
b is y-intercept (where the line crosses the y axis)
Hope this helps!
Question 5
Which graph shows a linear function?
PLEASE HELP!!
Answer:
Top Left
Their the straight line
The sum of two numbers is 22. One of the numbers is two times the other. What are the numbers
The numbers is 44/3 and 22/3 are that numbers.
Given that
The sum of two numbers is 22.
One of the numbers is two times the other.
To find
What are the numbers ?
So, according to the question
Let's assume that numbers are x and y, where x is greater then y.
So, we can say that
The sum of that numbers,
x+y = 22, -------------(1)
And
One of the numbers is two times the other.
x = 2y ---------------(2)
Now, put the value of eq(1) in eq(2)
So, we will get
x+y = 22, -------------(1)
2y+y = 22
3y = 22
y = 22/3
Now, put the value of y in eq(2)
So, we will get
x = 2y ---------------(2)
x = 2 (22/3)
x = 2 ×[tex]\frac{22}{3}[/tex]
x = 44/3
That numbers are 44/3 and 22/3.
To learn more about Addition and Multiplications , please click on the link:
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100 students are interviewed to see which of biology, chemistry or physics they prefer.
36 of the students are girls. 15 of the girls like biology best.
14 of the boys prefer physics.
7 out of the 31 who prefer chemistry are girls.
What percentage of the students prefer biology?
Answer: 41%
Step-by-step explanation:
15 girls prefer biology.
Find the boys who prefer biology;
There are 36 girls in total so;
= 100 - 36
= 64 boys interviewed
14 boys prefer Physics
= 64 - 14
= 50 boys prefer Biology and Chemistry
7 out of the 31 who prefer chemistry are girls so the boys who prefer chemistry are;
= 31 - 7
= 24 boys
Boys who prefer Biology;
= 50 - 24
= 26 boys
Total who prefer biology;
= 15 girls + 26 boys
= 41 students
Percentage = 41/100 = 41%
Felix wrote several equations and determined that only one of the equations has no solution. Which of these equations has no solution?
3 (x minus 2) + x = 4 x + 6
3 (x minus 2) + x = 4 x minus 6
3 (x minus 2) + x = 2 x minus 6
3 (x minus 2) + x = 3 x minus 3
Answer:
A. 3(x-2)+x=4x+6 has no solution.
Step-by-step explanation:
We are provided the subsequent data in the question:
We evaluate the presented expressions to find which equations have no answer.
1) Image of solved equation is added below.
2) Image of solved equation is added below
3) Image of solved equation is added below
4) Image of solved equation is added below
Equation 1 has no solution.
Answer:
I believe it's B ^^
What is the range of the function f(x) =
-2x + 5 when the domain is {-5, 5}.
PLZ HELP
Answer:
i need points bro
Step-by-step explanation:
01:57:53
What is the radius of a circle whose equation is (x + 5)2 + (y - 3)2 = 427
02 units
4 units
8 units
0 16 units
Mark this and return
Save and Exit
Next
Submit
Answer is 4
Answer:
idu it, the question but the euqation is x= -2y - 433 / 2 -5
Step-by-step explanation:
The radius of the circle is 4 units
How to determine the radius?The equation of the circle is given as:
(x + 5)^2 + (y - 3)^2 = 4^2
The general equation of a circle is given as:
(x - a)^2 + (y - b)^2 = r^2
Where r represents the radius
By comparing both equations, we have:
r^2 = 4^2
Take the square root of both sides
r = 4
Hence, the radius of the circle is 4 units
Read more about circle equations at:
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HELP PLEASE!!!!! ASAP!!!! 20 POINTS!!!!!
Answer:wg
Step-by-step explanation:
wg
PLS HELP MEEEEE!!!!!!!!!!!!
Answer:
(1,2)
Step-by-step explanation:
The solution is the point where the two lines intersect at.
In other words the point where the two lines make an x.
Hope this helps ya!!
Answer: (2,1)
Step-by-step explanation:
Mark is 8 inches shorter than two times the height of his little brother bryan. If mark is 52 inches tall , how tall is bryan?
Answer:
M=18
Step-by-step explanation:
M+-8+2*13
M=-8+26
M=18
Answer:Bryan is 30 inches tall
Step-by-step explanation: 52+8=60. Mark is 8 inches shorter than double the height so just add marks height and add 8. then divide by 2. 60/2 = 30 inches