Answer:
Step-by-step explanation:
y = x² + 4x is an up-opening parabola with x-intercepts 0 and -4.
y ≥ 0 when x≤-4 or x≥0
range: (-∞,-4)∪[0,+∞)
What is the length of AP in AABC?
Headphones at the factory are packed into small boxes measuring 1/3 cubic foot. How many boxes of headphones can fill a cargo truck measuring 57 cubic feet?
PLEASE HELP ASAP OR ELSE ILL FAIL
#1-2: Find the value of x and the measure of all three angles
Show your work I’ll give brainliest :)
Answer:
1. x=20 ; the angles are 90 degrees31 degrees 59 degrees
2. x=16; the angles are 16 degrees 92 degrees 72 degrees
Step-by-step explanation:
1. 180=90+31+(3x-1)
180-90-31=3x-1
59=3x-1
60=3x
x=20
plug in x for the third angle
2. 180= x+5x-8+3x+44
180=9x+36
180-36=9x
144=9x
x=16
plug in x to all the angles to find the real value
what is the value of x
Answer:
The value of x is whichever number you put in the left corner.
Step-by-step explanation:
Renata is reading an 800-page thriller. She reads 60 pages each day.
The formula f(n) = 740 - 60(n1) represents how many pages Renata
has left to read after n days of reading. How many pages does she
have left to read after 9 days of reading?
Answer:
[tex]f(9)=200[/tex]
Step-by-step explanation:
Given
[tex]f(n) = 740 - 60n[/tex]
Required
Determine f(n) when n = 9
The question has been analysed in the GIVEN and REQUIRED option.
To solve further; Substitute 9 for n
[tex]f(9)=740 - 60 * 9[/tex]
[tex]f(9)=740 - 540[/tex]
[tex]f(9)=200[/tex]
Whoever answers correctly gets brainlist!
Answer:
8.9 = z
Step-by-step explanation:
11 = 2.1 + z - subtract the 2.1 from the 11
There is a bag filled with 2 blue, 4 red and 3 green marbles. A marble is taken at random from the bag, the colour is noted and then it is replaced. Another marble is taken at random. What is the probability of getting 2 the same colour?
Answer:
9 to 2 = 2+4+3=9 2 picks all together you have 9 marbles and you have 2 picks this will give you a ratio of 9 to 2
40. There are 24 grapes on a plate of the grapes a quarter are green how many of them
grapes are green
Show the sum that you do here.
Answer:
6 are green
Step-by-step explanation:
In order to find your answer you have to find the number like 4 and divide the number by 24 and 6
10. Mathew bought an aquarium worth $400 in the first week of the year. Its value depreciates by 3% per week.
What will the value of fish aquarium after 8 weeks?
Answer:
It’s 51
Step-by-step explanation:
the equation of the line is
Solve this inequality for x.
81 - 1 1/5x <_ 55
Answer:
Step-by-step explanation:
12 NO WELCOME
:)
What is the y-intercept?
(0, -5)
(0, -2)
(0, 2)
(0,4)
Answer:
0,-5
My above answer is correct hope this helps.
Answer:(0,-5)
Step-by-step explanation:
HURRYYYYY
What is the value of the expression 4’4?
Answer:
256
Step-by-step explanation:
Raise 4 to the power of 4
Basically, multiply 4 by itself four times. :)
Kendra has 4 necklaces, 7 bracelets, and 5 rings. Draw a model to show the ratio that compares rings to bracelets
Answer: ||
Step-by-step explanation:
1st part is the rings , second is the bracelets.
since its rings TO bracelets rings have to be first.
The graph shows a proportional relationship between the number of workers and weekly cost, in dollars, for a company in its first year. The following year, the company spends $7,200 per 12 employees. Did the rate increase or decrease the following year?
Answer:
increase
Step-by-step explanation:
each person gets 600 out of 7200 for 12 employis
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.18. You would like to be 99% confident that your esimate is within 1.5% of the true population proportion. How large of a sample size is required?
Answer:
435,307
Step-by-step explanation:
Given that :
p = 0.18
Zcritical = 99%
Error (E) = 1.5% = 1.5/100 = 0.0015
Sample size (n) can be obtained using the relation :
n = (Zcrit / E)^2 * (p * q)
q = 1 - p ; q = 1 - 0.18 = 0.82
Zcrit at 99% equals 2.576
n = (2.576 / 0.0015)^2 * (0.18 * 0.82)
n = (1717.3333)^2 * (0.1476)
n = 2949233.66328889 * 0.1476
n = 435306.888701440164
n = 435,307 samples
abdul purchases two pairs of goggles priced the same, as well as a bottle of sun screen. The sunscreen was $12 and represents 30% of the total. How much is the purchase total?
Answer:
$40
Step-by-step explanation:
We can call the total x.
30% = 3/10, so $12 = 3/10 of the total.
This means that 12 = 3/10 of x, or 12 = 3/10 * x.
Solving,
12 = 3/10 * x
multiply both sides by 10 to get rid of the fraction
120 = 3 * x
divide both sides by 3 to get x, the total, by itself
40 = x
This means that the total is $40.
Answer:
$40Step-by-step explanation:
Let the total be x
30% of total is $120.3x = 12x = 12/0.3x = 40Total is $40
Identify whether each phrase is an expression, equation, or inequality.
Given ΔFGH ~ ΔLMN, which must be true? Select all that apply.
Urgent!! Math help!!
The first term of a geometric series is -3, the common ratio is 6, and the sum of the series is -4,665. Using a table of values, how many terms are in this geometric series?
Answer:
Option A. 5
Step-by-step explanation:
From the question given above, the following data were obtained:
First term (a) = –3
Common ratio (r) = 6
Sum of series (Sₙ) = –4665
Number of term (n) =?
The number of terms in the series can be obtained as follow:
Sₙ = a[rⁿ – 1] / r – 1
–4665 = –3[6ⁿ – 1] / 6 – 1
–4665 = –3[6ⁿ – 1] / 5
Cross multiply
–4665 × 5 = –3[6ⁿ – 1]
–23325 = –3[6ⁿ – 1]
Divide both side by –3
–23325 / –3 = 6ⁿ – 1
7775 = 6ⁿ – 1
Collect like terms
7775 + 1 = 6ⁿ
7776 = 6ⁿ
Express 7776 in index form with 6 as the base
6⁵ = 6ⁿ
n = 5
Thus, the number of terms in the geometric series is 5.
plss help me with my question I'll give you more points
Answer:
hey
how are you cutie girl
Step-by-step explanation:
what's your real name
PLEASE HELP ME THANK YOU :)
Answer:
y>=-11 (c)
Step-by-step explanation:
I need help how do I slove this and how do I figure out the ratio. And could you provide a guide on how you go about finding the ratio I need help please.
Answer:
Option C. 6 : 1 is the answer.. Hope it can help you and please mark me as a brainlist..What type of learners do we have
Answer:
Down below
Step-by-step explanation:
Visual learners
Auditory learners
Kinesthetic learners
Reading learners
Writing learners
help
how do you do it
find what the word is and then you put it in the Box
A music industry researcher wants to estimate, with a 90% confidence level, the proportion of young urban people (ages 21 to 35 years) who go to at least 3 concerts a year. Previous studies show that 21% of those people (21 to 35 year olds) interviewed go to at least 3 concerts a year. The researcher wants to be accurate within 1% of the true proportion. Find the minimum sample size necessary.
Answer:
21378
Step-by-step explanation:
The confidence level is 90%, which gives us a Z of 1.645.
Our equation is (Z^2*p*q)/e^2
(1.645^2*p*(1-.21))/ (.01^2)
E is the error proportion, .01
Q is 1-p or the proportion
P is the pop you need
With this, we can solve
and get p = 21377.5975 and rounded to 21378
Try being my size Amy
Answer:
Bet whats your size
Step-by-step explanation:
Answer:
...?
Step-by-step explanation:
The length of the base of an isosceles triangle is x. The length of a leg is 5x-7 The perimeter of the triangle is 41. Find x.
Step-by-step explanation:
if it is an isosceles triangle then both of his legs have the same lenght equal ti 5x-7=>P=2(5x-7)+x=41
10x-14+x=41
11x=55
x=11
HELLPPP ASAPPP !! Will mark BRAINLIEST
Answer:
50
Step-by-step explanation:
