Answer:
1. The formula used to the find distance formula is: [tex]Distance\:Formula=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
2. The distance between the points (-3,8) and (-4, -2) is 10.04
Step-by-step explanation:
1. Which of the following is the correct form of the distance formula?
The formula used to the find distance formula is: [tex]Distance\:Formula=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
2. Use the distance formula to find the distance between the points (-3.8) and (-4. -?)
Note: Since the y-term in (-4,-) is missing So, I am using -2 to solve the question and find distance. You can use the term given in question and replace it with -2 and use this solution as reference to solve and find the correct answer.
We have points (-3,8) and (-4,-2)
Putting values in distance formula and finding result:
[tex]Distance\:Formula=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
We have x_1=-3, y_1=8, x_2=-4, y_2=-2
[tex]Distance=\sqrt{(-2-(-3))^2+(-2-8)^2}\\Distance=\sqrt{(-2+3)^2+(-2-8)^2}\\Distance=\sqrt{(1)^2+(-10)^2}\\Distance=\sqrt{1+100}\\Distance=\sqrt{101}\\Distance=10.04[/tex]
So, the distance between the points (-3,8) and (-4, -2) is 10.04
The Malthouse Charity Run is a 5 kilometre race. The time taken for each runner to complete the race was recorded. The data was found to be normally distributed with a mean time
of 28 minutes and a standard deviation of 5 minutes.
A runner who completed the race is chosen at random.
Write down the probability that the runner completed the race in more than 28 minutes.
3b. [2 marks]
Calculate the probability that the runner completed the race in less than 26 minutes.
3c. [3 marks]
It is known that 20% of the runners took more than 28 minutes and less than minutes to complete the race.
Find the value of .
Answer:
0.5 ; 0.34458
Step-by-step explanation:
Given that:
Mean (m) = 28
Standard deviation, s = 5
To obtain the Zscore :
Z = (x - m) / s
1.) P(x > 28)
Z = (28 - 28) / 5
Z = 0
P(Z > 0) = 0.5 (Z probability calculator)
2.) P(x < 26)
Z = (26 - 28) / 5
Z = - 0.4
P(Z > -0.4) = 0.34458 (Z probability calculator)
URGENT give the measure of the complement of the angle 75.25 degree
Answer:
14.75°
Step-by-step explanation:
The sum of the measures of complementary angles is 90 deg.
Let the complement have measure x.
x + 75.25 = 90
x = 90 - 75.25
x = 14.75
Answer: 14.75°
Answer:
14.75
Step-by-step explanation:
complementary angles add up to 90
x + 75.25 = 90
90 - 75.25 = answer
14.75
y=4x-2 I need help with plotting this in graph form.
Answer:
Just make two points that are on the line and connect them :)
Step-by-step explanation:
PLEASE HELP ME PRONTO!!!!!!!!!!!! Estelle is creating a playground for her new puppy. The length is 150.5 centimeters. The width is 40.75 centimeters less than the length. What is the width of the playground in centimeters?
Answer:
278.765
Step-by-step explanation:
BTW i turned this from inches to centimeters i subtracted 150.5 and 40.75 the i turned the sum of that from inches to centimeters and then i got the answer of 278.765
3) 8x - 27 = 8(x-4) + 5
A) { All real numbers. }
B) (-7)
C) 7
D) {-10)
Given g(x) = -x+3,find g(1)
Answer:
g=-1+3
g=2
Step-by-step explanation:
Answer:
g(1) = 2
Step-by-step explanation:
g(1) = -1 + 3
g(1) = 2
Explain how you can use long division to see that the rational number is
equivalent to a repeating decimal.
To use division to find the decimal equivalent of a rational number, divide the top number by the bottom number. You will get a decimal number.
Which rate describes a unit rate of 6:1?
Answer:
6/1
Unit rate = 6
Unit rates are ratios that compare two measurements (units) and the second measurement is 1 (per)
Help quick please. Which expression is equivalent to -28xy+35y?
A7y(-4xy+5y)
B7x(-4x+5y)
C7x(-4y+5y)
D7y(-4x+5)
Answer:
D
Step-by-step explanation:
Homer the Hungry Hippo is munching on the lily pads in his pond. When he got to the pond, there were 30 lily pads, but he is eating 5 lily pads an hour. Henrietta the Hungrier Hippo found a better pond with 38 lily pads! She eats 7 lily pads every hour.
If Homer and Henrietta start eating at the same time, when will their ponds have the same number of lily pads remaining?
How many lily pads will be left in each pond at that time?
Answer:
After 5 hours, they will each have 10 lily pads left..
Step-by-step explanation:
30|25|20|15|10|5|0
38|31|24|17|10|3
After 4 days same number of lily pads remained.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
Homer got to the pond, there were 30 lily pads, but he is eating 5 lily pads an hour.
and, Hungrier Hippo found a better pond with 38 lily pads. She eats 7 lily pads every hour.
let after x days same number of lily pads remained.
So, 30 - 5x = 38 - 7x
30- 38 = -7x + 5x
-8 = -2x
x= 4
Hence, After 4 days same number of lily pads remained.
Learn more about Algebra here:
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Help me. please <3....
Answer:
(12) = 2
(13) = 3
(14) = -7
(15) = 24
(16) = -25
(17) = -3
Second row:
(29) = -12
(30) = -2
(31) = -9
(32) = -38
(33) = 10
(34) = -28
Solve the inequality
32>3x+29
Answer:
x<1 interval notation (-oo,1)
Step-by-step explanation:
-3x>29-32
-3x>-3
Answer:
Hope this helps :)
Step-by-step explanation:
32>3x+29
Switch sides
3x+29<32
Subtract
3x+29-29<32-29
Simplify
3x<3
Divide
3x/3<3/3
Simplify
x<1
MATH WILL GIVE BRAINLIEST!
Directions: Drag and drop the numbers 1 - 9 into the empty boxes below to create a compound inequality that would have a solution of all real numbers. Each number can only be used one time, and only one number can be placed per empty box (there will be some unused numbers). Justify that your answer is correct in the provided box. Justification can include a typed explanation and/or a picture of written work.
- _x + _ ≤_x or _x + _ < _
Answer:
-2x + 6 [tex]\leq[/tex] 8x or 5x + 3 < 9
Step-by-step explanation:
-2x + 6 [tex]\leq[/tex] 8x -> x[tex]\geq[/tex] 3/5
5x + 3 < 9 -> x < 6/5
can someone help me with 6th grade? :-)
Answer:
Lemme explain it down below
Step-by-step explanation:
150/3 would be 50 per hour.
15/3 would be 5 per hour.
120/2 would be 60 per hour
I need to find the resultant matrix
the answers are there
i hope it will help you
After graduation, Duke's grandfather spent $158.81 taking the entire
family out to eat at a buffet. Adults ate for $8.99 and children ate for
$6.99. The number of adults was one more than twice the number of
children. Which system of equațions is used to find a, the number of
adults, and c, the number of children in Duke's family?
A. 8.99a + 6.99c=158.81
a=2c + 1
B. 6.99a + 8.99c =158.81
c=2a + 1
C. 8.99a + 6.99c = 318.62
c =2a + 1
D. 8.99a - 6.99c = 158.81
a =2c + 1
Answer:
A. 8.99a + 6.99c=158.81
a=2c + 1
Step-by-step explanation:
Let us represent
The number of Adults = a
The number of children = c
Duke's grandfather spent $158.81 taking the entire family out to eat at a buffet. Adults ate for $8.99 and children ate for $6.99.
$8.99 × a + $6.99 × c = $158.81
= 8.99a + 6.99c = 158.81
The number of adults was one more than twice the number of children.
a = 2c + 1
Hence:
The system of equations used are:
8.99a + 6.99c = 158.81
a = 2c + 1
Option A is correct
Select all that apply.
The mass and gravity of the Earth are used as a _____ of comparison with other planets.
standard
weight
pull
measure
Answer:
standard and measure
Answer:
measure, standard.
Step-by-step explanation:
How many more dogs than cats were over 10 pounds?
10
30
50
100
Answer:
30 i think?
Step-by-step explanation:
A pet store has 9 puppies and 48 kittens.
What is the ratio of kittens to puppies? KP Simplify your answer
A car salesperson earns a 18% commission on every car sold. The salesperson sells a car for $37,560. What is the commission?
100% = $37,560
18% = ?
(18 × 37560) ÷ 100
= 676,080 ÷ 100
= $6760.8 commission
6x+5y=19
2x+3y=5
Elimination Method to Solve Linear Equations
Answer:
x = 4 and y = -1
Step-by-step explanation:
Given that,
6x+5y=19 ... (1)
2x+3y=5 ...(2)
We need to solve the above equations.
Multiply equation (2) by 3.
6x+9y=15 ...(3)
Subtract equation (1) and (3).
6x+5y-(6x+9y)=19-15
6x+5y-6x-9y = 4
-4y = 4
y = -1
Put the value of y in equation (2).
2x+3(-1)=5
2x-3=5
2x=8
x=4
So, the solution of the above equations are x = 4 and y = -1.
Resource managers need to determine the number of years after which purple loosestrife will cover more than 850 acres of the wetland.
Fill in the values of A, b, and c to write an inequality modeling the number of years, t, for which purple loosestrife will cover more than 850 acres of the wetland.
A(b)^t>c
Answer:500(1.2)^t> 850
Step-by-step explanation:
got it right on the test
The missing values in the expression are t > log(850/A)/logb if Resource managers need to determine the number of years.
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:
Resource managers need to determine the number of years after which purple loosestrife will cover more than 850 acres of the wetland.
c = 850
[tex]\rm A(b)^t > 850[/tex]
[tex]\rm (b)^t > \dfrac{850}{A}[/tex]
Taking log and solving for t:
t > log(850/A)/logb
Thus, the missing values in the expression are t > log(850/A)/logb if Resource managers need to determine the number of years.
Learn more about the inequality here:
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Зp + 2р – р
Please helppp haha
Answer:
4p
Step-by-step explanation:
3p + 2p = 5p
5p - p = 4p
Answer:
4p
Step-by-step explanation:
i want branliest please
Todd is a salesperson he sold a crystal sculpture for $58 and earned 15% commission. how much commission did Todd earn.
Answer:
$8.70
Step-by-step explanation:
He earned 15% of 58...so that's 8.70. (checked with a calculator)
M= 1/2 and point : (4,-3)
Please help I will give you brainless
Answer:
y=1/2x-5
Step-by-step explanation:
We have slope so we just need to find the y intercept.
slope intercept formula is
y=mx+b
(m) is slope
(b) is y int
y=1/2x+b
now apply our given x and y values (4 & -3)
-3=1/2(4)+b
simplify
-3=2+b
subtract 2 from each side
-5=b
put that into our equation
y=1/2x-5
Consider the division expression ÷2. Select all multiplication equations that correspond to this division expression.
A. 2⋅?=
B. 7⋅?=2
C. 2⋅7=?
D. ?⋅7=2
E. ?⋅2=7
Answer: hows ur day
Step-by-step explanation:
6x + 39 ( if x = 10)
Answer:
99
Step-by-step explanation:
6(10)+39=?
=60+39
=99
Answer:
Hi! The correct answer is 99!
Step-by-step explanation:
~Simplify the expression~
Rochelle is conducting an experiment on cells of Elodea, a kind of water plant. To induce plasmolysis at the correct rate, she needs to use an 8% saline solution, but she has only the solutions shown on hand.
Answer:
Why did mansa musa make this journey in 1324?
Step-by-step explanation:
Simply this equation 8-4(7b+5)
Answer:
-28b-12
Step-by-step explanation:
8-4(7b+5)=8-4*7b-4*5=8-28b-20=-28b-12
Answer:
-12-28b
Step-by-step explanation:
8-4(7b+5)
8-28b-20
-12-28b(Ans)
PLEASE HELP, SHREK WILL GRANT YOU INFINITE IMMORTALITY!!!
Find the value of x.
ABCD ∼ EFGH
Answer:
5
Step-by-step explanation:
AB/EF=BC/FG
4/(X+3)=3/(2X-4)
4(2X-4)=3(X+3)
8X-16=3X+9
8X-3X=16+9
5X=25
X=25/5
X=5