Answer:
- 1 / 2
Step-by-step explanation:
Equate 2x + 1 = 0
2x + 1 = 0
Subtract 1 on both sides,
2x + 1 - 1 = 0 - 1
2x = - 1
Divide 2 on both sides,
2x / 2 = - 1 / 2
x = - 1 / 2
In a 5k race, the average time for a runner to finish was 25.2 minutes. The standard deviation is 3.5 minutes. ROUND ALL Z-SCORES TO 2 DECIMAL PLACES.
1. What is the z-score of a runner who finished in 20 minutes?
2.what is the z-score of a runner who finished in 30.5 minutes?
3. what is the z-score of a runner who finished in 26 minutes?
4.why are some z-scores negative and some positive? what does a positive z-score tell you? what does negative z-score tell you?
Please Help im so confused!!!
see link in comments
Jared's car can travel 320 miles on 1 tank of gasolin. The gas tank of his car holds 22.4 gallon. If one gallon of gas costs $3.46, how much did he pay in gasif he travelled 563 miles. Round answer to nearest hundredth.
Answer:
39.8, $51.00
Step-by-step explanation:
Which of the following equations is an example of inverse variation between
the variables x and y?
A. y = 12x
B. y =х
12
C. y= x + 12
D. y = 12
х
Answer:
The correct answer is option D
Step-by-step explanation:option A : y = x/12 ⇒ x = 12y (wrong option)
option B : y = 12/x ⇒ y * x = 12 (wrong option) and c will be equal 12
option C : y = x + 12 ⇒ not similar to the general form (wrong option)
option D : y = 12/x (corect option)( I meant to switch it around)
The general form of inverse variation between the variables x and y is as following:
where c is constant
So, the correct option is D
GIVING 100 POINTS AND BRAINLIEST IF CORRECT! You recently upgraded your experience by buying an Controller for $74.99 and an Game Pass Subscription for $14.99 per month.
Answer:
Part A: It's linear because it increases at a constant rate of 14.99 dollars per month
Part B: C = 14.99M + 74.99 (y = 14.99x + 74.99)
Step-by-step explanation:
Part A: Every month, you have to pay the same amount.
1 month = 14.99
2 months = 14.99 + 14.99
3 months = 14.99 + 14.99 + 14.99
So, it's linear.
Part B: We have to use the formula y = mx + b, or slope-intercept form, to represent the total cost per month.
m = slope, b = y-intercept (initial value)
Let's have the total cost be represented as C
Let's also have the subscription per month be represented as M
So, C would = 74.99, because we only need to pay for a controller once
But we also our subsription per month, M, as 14.99.
So our final answer would be C = 14.99M + 74.99, or y = 14.99M + 74.99 if you can't make your own variables
I wanted to get more indepth. Try adding this to notes! <3
pls help I have headache i try everything
Answer:
210 students
Step-by-step explanation:
30%=63
10%=63÷3
=21
100%=21×10
=210
assume that y varies directly as x. if y=7 when x=4, find y when x=12
The area of a rectangular parking lot is 3944 m². If the width of the parking lot is 58 m, what is it length?
Answer:
68 length
Step-by-step explanation:
3944 divided by 58
68 meters
Answer:
Step-by-step explanation:
[tex]Length = \dfrac{Area}{Width}\\\\\\= \dfrac{3944}{58}\\\\= 68 \ m[/tex]
To make 6 cups of ramen, 2/3 of noodle is needed to make 10 cups of ramen. How many cups of ramen can you make with 1 3/4 cups of noodle?
Answer: You can make 2 ramen
Step-by-step explanation:
Answer:
2 :)
Step-by-step explanation:
What’s the height of a right triangle with an angle that measures 45 degrees and a base of 16?
I got h = 11.31371.
Hope this helps!
PLZ HELP ASAP WITH 2,4,6,8,9 plz
Answer:
2. 1
4. -5/2
6. 3
8. 5/3
You asked for help with number 9, but you haven't included the problem in the picture, so I couldn't solve it. I hope this helps!
Step-by-step explanation:
The formula for finding slope is y2 - y1/x2 - x1
2. 3-1/3-1 = 2/2 = 1
4. 4-9/2-0 = -5/2
6. 7-1/2-0 = 6/2 = 3
8. 7-2/4-1 = 5/3
What is the value of 4 1/3 +2 5/12
Answer:
6.75
Step-by-step explanation:
Hello can someone please help me with this
Answer:
Yo whats the the problem i'd be happy to help?
Answer:
what's the problem...u can share
Evaluate g(x)=4−3x when x=−3, 0, and 5.
g (-3) __
g(0) __
g(5) __
Answer:
g(-3)=13, g(0)=4 and g(5)= -11
Answer:
Step-by-step explanation:
g(-3) = 4 - 3(-3) = 13
g(0) = 4 - 3(0) = 4
g(5) = 4 - 3(5) = -11
72 boxes out of 90 sold what percentage sold
Answer:
is what is the math thing at you need help with huh
PLEASE HELP ASAP
Which best describes the type of triangle?
answer options
1. acute scalene
2. obtuse isosceles
3. acute isosceles
4. obtuse equilateral
Answer:
obtuse isosceles
Step-by-step explanation:
Obtuse Isosceles (lies between 90 degrees and 180 degrees)
Help! Give brainliest!
City A grows by 5% every year. In 2001, it has a population of 145,201. What will the population be in 2037?
Total years=2037-2001=36
[tex]\\ \sf\longmapsto S=P\left(1+\dfrac{r}{100}\right)^t[/tex]
[tex]\\ \sf\longmapsto S=145201\left(1+\dfrac{5}{100}\right)^{36}[/tex]
[tex]\\ \sf\longmapsto S=145201\left(\dfrac{105}{100}\right)^{36}[/tex]
[tex]\\ \sf\longmapsto S=145201(1.05)^{36}[/tex]
[tex]\\ \sf\longmapsto S=145201(5.79)[/tex]
[tex]\\ \sf\longmapsto S\approx 840713[/tex]
___________
[tex]\:[/tex]
Answer in the picture.
Find the remainder when 16^53 is divided by 7
Step-by-step explanation:
there no gimme brainliest plsss I need it
Multiply by tens. Choose a method. Then find the product lesson 3.1 question 1:80x22
Question 2: 30x52 question 3:60x20 please help !!
Answer:
Question 1:1760
Question 2:1560
Question 3:1200
Step-by-step explanation:
It is just multiplication, you can do it with a bunch of different methods.
Kara has five exam scores of 93, 67, 82, 71, and 94 in her biology class. What score does she need on the final exam to have a mean grade of 80?
Round your answer to two decimal places, if necessary. (All exams have a maximum of 100 points.)
Answer:
She needs at least 73%
Step-by-step explanation:
1. add all of the numbers up and d the quantity to find
93+67+82+71+94/5
=407/5
=81.
2. try diffrent numbers
407+73/6
=480/6
=80
She needs at least 73%
Answer:
A score of 73
Step-by-step explanation:
Five exam scores + the final exam = mean (average) of 80.
First find the total points that you need to make an 80 average 80 × 6 = 480 points.
The five exam scores + x score = 480 points.
93 + 67 + 82 + 71 + 94 + x = 480
407 + x = 480
x = 480 - 407
x = 73
a.
The sum of two numbers is thirty. One number is five times the other less six. Find the
numbers.
Answer:
-25, -5
Step-by-step explanation:
ASAP!!!
What is the range of the function on the graph?
A all the real numbers
B all the real numbers greater than or equal to 0
C all the real numbers greater than or equal to 2
D all the real numbers greater than or equal to -3
Answer:
D all the real numbers greater than or equal to -3
Step-by-step explanation:
(1)Consider an experiment that has N outcomes e1,e2,…,eN,where it is known that outcome ej+1 is twice as likely as the outcome ej for j=1,2,,N-1.Let Ek=E1,E2,…,Ek.Show that PEk=2k-12N-1
uhh this looks like gibbrish but it's not 0.0
Answer:
Step-by-step explanation:
IAM WAITING FOR THE STEP BY STEP ANSWER
Aaliyah has a loyalty card good for a discount at her local hardware store. The item she wants to buy is priced at $39, before discount and tax. After the discount, and before tax, the price is $33.54. Find the percent discount.
Answer:
16.13
Step-by-step explanation:
what are the first 4 multiples of 4.
Answer:
the first 4 multiples of 4
Multiples of 4: 4, 8, 12, 16,
Step-by-step explanation:
Answer:
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, …
Step-by-step explanation:
please mark as brainlist
A jet travels 1536 miles against a jetstream in 2 hours and 1916 miles with the jetstream in the same amount of time. What is the rate of the jet in still air and
what is the rate of the jetstream?
what is y=2x+4 located on the coordinate plane?
Can I have brainliest please
The perimeter of the quadrilateral is 40 centimeters. Find the length of each side.
Side one = x + 2 =
Side two = x + 5 =
Side three = x² – 3x =
Side four = 3x - 2 =
Answer:
Side one 5+2=7
Side two 5+5=10
Side three 25-15=10
Side four 15-2=13
Step-by-step explanation:
x+2+x+5+x^2-3x+3x-2=40
2x+5+x^2=40
x^2+2x-35=0
(x-5)(x+7)=0
x=5
Side one 5+2=7
Side two 5+5=10
Side three 25-15=10
Side four 15-2=13
Julio grew 10 centimeters in 1 year. He is now 60 inches tall. How many inches did he grow? (Round your answer to the nearest whole number)
Answer:
Julio grew 4 inches during this 1-year time period.
Step-by-step explanation:
Use the conversion factor (1 inch) / (2.54 cm):
Then 10 cm converts to
1 inch 10 cm
------------ * ------------ = 3.94 inches, or (rounded off), 4 inches
2.54 cm 1
At a certain time of day, a tree that is x meters tall casts a shadow that is x - 23 meters long. If the distance from the top of the tree to the end of
the shadow is x + 2 meters, what is the height, x, of the tree?
Answer:
The height, x of the tree is 35 meters
Step-by-step explanation:
use Pythagorean theory to answer
(x+2)^2= x^2+(x-23)^2
[tex]x^{2}[/tex]+4x+4=[tex]x^{2}[/tex]+[tex]x^{2}[/tex]-46x+529
re-arrange the equation and collect like terms
[tex]x^{2}[/tex]-50x+525=0
(x-35)(x-15)=0
x=15 or x=35
x cannot be 15 because 15-23 is a negative answer
therefore the height of tree is 35 m
need help solving this problem
Answer:
I think it might be B but sorry if it not right
