Answer:
$3,500 + $50x < y
Step-by-step explanation:
Math HW please help!
Answer:
B) 4
Step-by-step explanation:
(x-1+2)^2=(x-1)^2+(2x-4)^2
(x+1)^2=(x-1)^2+(2x-4)^2
x^2+2x+1=x^2-x+1+4x^2-16x+16
0= 4x^2-18x+17-2x-1
4x^2-20x+16=0/4
x^2-5x+4=0
(x-4)(x-1)=0
x-4=0
x=4
hope it helps..
have a great day!!
If the 12-sided solid is rolled 180 times, how many times would you expect either number a 3, 9 or 11 to be rolled?
The probability that the 12-sided solid gets 3 , 9 or 11 is P ( A ) = 1/4 and the expected number of times is n = 45
What is Probability?The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible
Probability = number of desirable outcomes / total number of possible outcomes
The value of probability lies between 0 and 1
Given data ,
Let the probability that the the 12-sided solid gets 3 , 9 or 11 be P ( A )
Now , the value of P ( A ) is
Let the number of outcomes when rolling a 12-sided solid = 12
The number of times the solid is rolled = 180 times
So , the total number of outcomes = 12 x 180 = 2160
And , the probability of getting a 3 = 1/12
The probability of getting a 9 = 1/12
The probability of getting a 11 = 1/12
So , the total probability of getting a 3 , 9 or 11 = 3/12 = 1/4
The total expected number of times = 45
Hence , the probability is 1/6
To learn more about probability click :
https://brainly.com/question/17089724
#SPJ3
What is the range of the graph
Answer: b
Step-by-step explanation:
The range is the set of y-values of the function.
What is the a-value of the quadratic
expression?
5x2 + 13x + 6
giving out brainliest answer !!!! help me out asap please !!!!
9514 1404 393
Answer:
45.6°
Step-by-step explanation:
The attached result was found by typing "arccos(7/10) in degrees" into a web browser search box.
Your calculator can give you the same result. The inverse cosine function often shares a key with the cosine function. It is often marked as cos⁻¹. Be sure that the angle mode is set to degrees, not radians.
A different factory produces red pens and green pens, of the pens produced at the factory each week, 3/4 are red. I’m a week when 39,000 red pens are produced, the factory manager uses this equation 3/4y = 39,000. What does the variable y represent in the managers equation
Answer:
y is the total the pens produced at the factory each week
Step-by-step explanation:
total pens produced at the factory each week = y (=52,000)
3/4 of the total are red ( 39,000)
her after-school community service
project. She ordered 6 pizzas. If
30 students attend the event and each
gets an equal amount of pizza, how
much pizza will each student receive?
Answer:
5
Step-by-step explanation:
PLEASE HELP AND NO LINKS OR YOU WILL BE REPORTED
I need help with this please, I keep getting the wrong answer every time please help me, I keep getting B) 5 which is wrong please help me
Answer:
The differnce is 3 and 1/2 as 9/2 - 1 = 3 and 1/2 according to the points plotted above the diagram meaning 5 and 0 are excluded values which do not have any place within the diagram.
Step-by-step explanation:
using the balanced equation 4FE+3O2 --> 2fe2O3 calculate how many grams of Fe2O3 are produced when 42.7 grams of Fe is reacted
The coefficients in the balanced reaction
4 Fe + 3 O₂ → 2 Fe₂O₃
represent the ratio of moles of each reactant to each product. That is, for every 4 moles of Fe and 3 moles of O₂, 2 moles of Fe₂O₃ are produced.
First convert the given amount of Fe into moles. Fe has a molar mass of 55.845 g/mol, so you have
42.7 g × (1/55.845 mol/g) = 0.765 mol
of Fe.
Find how many moles of Fe₂O₃ are produced given this much Fe and an abundant supply of O₂. Multiply the coefficients of the balanced reaction by 0.765/4 :
0.765 Fe + 0.573 O₂ → 0.382 Fe₂O₃
Now convert the amount of Fe₂O₃ to grams. O has a molar mass of 15.999 g/mol, so Fe₂O₃ has a total molar mass of about
2 (55.845 g/mol) + 3 (15.999 g/mol) = 159.687 g/mol
Then the reaction would produce about
0.382 mol × (158.687 g/mol) ≈ 61.0 g
of Fe₂O₃.
In triangle NOP p equals 600 inches angle P equals 96° and angle N equals 64° what is the area of triangle NOP to the nearest 10th of a square inch?
9514 1404 393
Answer:
55,637.8 square inches
Step-by-step explanation:
We can find side n using the Law of Sines:
n/sin(N) = p/sin(P)
n = p(sin(N)/sin(P)) = 600·sin(64°)/sin(96°)
n ≈ 542.246913 . . . . inches
The angle O is ...
O = 180° -N -P = 180° -64° -96° = 20°
Then the area is ...
A = 1/2·np·sin(O)
A = (1/2)(542.246913 in)(600 in)·sin(20°) ≈ 55,637.81008 in²
The area of ∆NOP is about 55,637.8 in².
Answer:Area
≈
55637.81
≈
55637.8
Area≈55637.81≈55637.8
Step-by-step explanation:
If Theta is an angle in standard position and its terminal side passes through the point
(-8,9), find the exact value of tan theta in simplest radical form.
Answer: - 9/8
Step-by-step explanation:
Solve all four questions and I’ll give BRAINLIEST!!!!!
Plz help due today..
Answer:
4)120
5)13
6)70
7)115
Step-by-step explanation:
Answer: 4. 120 degrees 5. 13 degrees 6. 70 degrees 7. 115 degrees
A rectangle is 8 cm long and 3.5 cm wide.
a) Calculate the area of the rectangle.
State the units of your answer.
Answer:
area = 28 cm²
Step-by-step explanation:
area = 8 x 3.5 = 28 cm²
Answer:
28 cm²
Step-by-step explanation:
Because the length of the rectangle is 8 and the width is 3.5 cm which we know we that the area is "length x width" so we should multiply both numbers getting 28 cm
HELP ME PLZZ ASAP WILL MARK BRAINLIST
Answer:
Option 2
Step-by-step explanation:
The problem given is saying this for example 24 ÷ (2+4)
The problem you picked would be saying (2+4) ÷ 24
Option 2 is saying 24 ÷ (4+2)
Nothing is changing except the order of the numbers in the parantheses, no matter which way you put them it's still the same answer
HELP I HAVE 3 minutes left
Answer:
The answer is C
Step-by-step explanation:
it
is
the
answer
C
help please ! need it asap and
(round answer to nearest tenth) pls
Answer: v=85/11
Step-by-step explanation: Cross multiply to get 11v=85, divide both sides by 11, and you get v=85/11.
Hope that this helped! Have a great day!!
The drag Prevnar is a vaccine meant to prevent meningitis. It is typically administered to infants between 12 and 15 months of age. Of the 710 infants,121 experienced a loss of appetite. Is there significant evidence to conclude the proportion of infants who receive Prevnar and experience of a loss of appetite is different from 0.135, the proportion of children who experience a loss of appetite with competing medications? Use α=0.01 level of significance.
Answer:
The pvalue of the test is 0.0058 < 0.01, which means that there is significant evidence to conclude the proportion of infants who receive Prevnar and experience of a loss of appetite is different from 0.135.
Step-by-step explanation:
Test if the proportion of infants who receive Prevnar and experience of a loss of appetite is different from 0.135
This means that the null hypothesis is:
[tex]H_{0}: p = 0.135[/tex]
And the alternate hypothesis is:
[tex]H_{a}: p \neq 0.135[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
0.135 is tested at the null hypothesis:
This means that [tex]\mu = 0.135, \sigma = \sqrt{0.135*0.865}[/tex]
Of the 710 infants,121 experienced a loss of appetite.
This means that [tex]n = 710, X = \frac{121}{710} = 0.1704[/tex]
Value of the test-statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.1704 - 0.135}{\frac{\sqrt{0.135*0.865}}{\sqrt{710}}}[/tex]
[tex]z = 2.76[/tex]
Pvalue of the test and decision:
The pvalue of the test is the pobability that the population proportion differs from the tested proportion by at least 0.1704 - 0.135 = 0.0354, which is P(|z| > 2.76). This probability is 2 multiplied by the pvalue of z = -2.76.
Looking at the z-table, z = -2.76 has a pvalue of 0.0029
2*0.0029 = 0.0058
The pvalue of the test is 0.0058 < 0.01, which means that there is significant evidence to conclude the proportion of infants who receive Prevnar and experience of a loss of appetite is different from 0.135.
HELP ME PLEASEEEEEEE
Answer:
(-3, -2)
Step-by-step explanation:
The point is at -3 on the x, and -2 on the y. make sure to include x first in the coordinates! (x, y)
brainliest plz if someone else answers
One day a store sold 25 sweatshirts. White ones cost $9.95 and yellow ones cost $12.50. In all, $297.20 worth of sweatshirts were sold. How many of each color
were sold?
Answer:you will end up with 350.00 dollars left
Step-by-step explanation: you are spending money on the thing that you are buying
Will give brainliest
angle 2 and angle 6 need to be congruent
x = 1 + root 2 , find the value of (x - 1/x )^3
Answer:
[tex](\sqrt{2})^3[/tex]
Step-by-step explanation:
Given the expression
[tex](x - \frac{1}{x} )^3[/tex]
Simplify
[tex](\frac{x^2-x}{x} )^3[/tex]
Given that x = 1+√2
Substitute
[tex](\frac{(1+\sqrt{2} )^2-(1+\sqrt{2} )}{1+\sqrt{2} } )^3\\=( \frac{1+2\sqrt{2} +2 - 1 - \sqrt{2}}{1+\sqrt{2}} )^3\\= (\frac{\sqrt{2}+2}{1+\sqrt{2}})^3 \\Rationalize\\= (\frac{\sqrt{2}-2+2-2\sqrt{2}}{1-2})^3 \\=( \frac{-\sqrt{2}}{-1})^3 \\= (\sqrt{2})^3\\ \\[/tex]
Hello, just need the answer for this question. Thank you for your help if you do so.
Answer:
In the first one you are missing (x - 3) so it will be 4(x - 3) and if you factor it out it will be 4x - 12
In the second one you are missing a (x -5)which means 9x(x -5) or when you factor it out it will be 9x^2 - 45x
Step-by-step explanation:
3x^2 -23x + 40 = (3x - 8) (x - 5)
3x^2 -17x + 24 = (3x -8) ( x - 3)
PLEASE HELP, IMAGINE ABOVE^^
find the area of the parallelogram. Round to the nearest hundredth if necessary
area=__ ft2
Answer:
20 ft2
Step-by-step explanation:
4 x 5 = 20
So area = 20 ft2
PNC bank is offering 2.5% simple interest when you open a savings account. Josh put $5,000 in a savings account for 5 years. How much money will be in his account at the end of the 5 years?
Answer:
CAN I ASWER THIS
Step-by-step explanation:
OKAY THANKS
Hold on, our servers are swamped. Wait for your answer to fully load.
3) The volume of a cube is 1,000 cu. in. What is the height of the cube? (Remember what is true about a cube!)
Answer:
10 inches
Step-by-step explanation:
A cube has volume V = sº, where s is the length of a side. Find the side length for a cube
with volume 8000 cm?
Answer:
512 units.
Step-by-step explanation:
V = S x S x S
V = 8 x 8 x 8
V = 512
So your answer is 512 units! Please mark brainliest if I got it right :)
I really need help on this please.
3x+4y=36 y=-0.5x+8 substitution
Answer:
Step-by-step explanation:
3x+4(-0.5x+8)=36
3x-2x+32=36
X=36-32
X=4
The points plotted below are on the graph of a polynomial. In what range of
x-values must the polynomial have a root? Check all that apply.
Answer:
the answer is 0 to 1 and 3 to 4
Gisella has 4 pints of chicken broth. She uses 5 cups of the broth to make soup.
How much chicken broth is left?
Enter your answer in the box.
cups
Answer:
3 cups or 1.5 pints
Solve for X. Leave answer in simplified radical form.
Answer:
X=5times (root2)/2
Step-by-step explanation:
Sin45=x/5
x=5sin45
x=5 times root2/2