Answers
Related Questions
please help me do this i need it
Answers
Answer:
(x+1)(3x+2) is the answer
Answer:
Step-by-step explanation:
3x^2+5x+2
3x^2+(3+2)x+2
3x^2+3x+2x+2
3x(x+1)+2(x+1)
(3x+2)(x+1)
Which system of equations has no solution?
Answers
Answer:
Step-by-step explanation:
Step-by-step explanation:
I think it's C.not sure if it's correct
Consider polynomials P and Q.
P= 8y4 + 6y3 +8y
Q= (5y2 - 4y) (3y2 + 7)
Which operation results in an expression equivalent to 23y4 - 6y3 + 35y2 - 20y?
A. PQ
B. P +Q
C. Q - P
D. P - Q
Answers
This the answer on edmentum
Suppose you are depositing an amount today in an account that earns 5% interest, compounded annually. If your goal is to have $5000 in the account at the end of six years, how much must you deposit in the account today?
Answers
Answer:
If you walk into a bank and open up a savings account you will earn interest ... include the amount of money deposited called the principal, the annual interest rate ...
Answer:
3731.08
Step-by-step explanation:
let x= the present value (or principle)
[tex]5000=x(1.05)^6\\\frac{5000}{1.05^6}=x\\x=3731.076983[/tex]
Write the equation in slope intercept form given
the
point and the slope
m=-4 & (-1, 3)
Answers
y = -4x -1
Work:
y = mx + b
y = -4x + b
3 = -4(-1) + b
3 = 4 + b
-1 = b
Answer:
Step-by-step explanation:
if a straight line with a slop [tex]m[/tex] pass through point [tex]P(x_o, y_o)[/tex] it's equation is:
[tex]y-y_o=m(x-x_o)\\\\y-(3)=-4(x-(-1))[/tex]
[tex]y=-4x-4+3\\\\y=-4x-1[/tex]
Find the area of a circular pool whose radius is 2 meter.
Answers
Answer:
3.1416 square meters
Step-by-step explanation:
brainliest me pls
If a researcher decided to set their alpha level to 0.001 instead of 0.05, they would be MORE likely to reject the null hypothesis
True or false
Answers
Using the following image, solve for FE
Answers
Answer:
FE = 3
Step-by-step explanation:
FE + ED = 11.
(2x - 17) + (x-2) = 11
Combine like terms, and you'll get:
3x -19 = 11
3x = 11+19 = 30
x = 10
FE = 2x - 17
= 2(10) - 17
= 20 - 17
= 3
how to write the fraction 7/100 as a decimal
Answers
Answer:
0.07
Step-by-step explanation:
It's 7/100. There are two zeros so you move the decimal place to the left two times. Or you can just put the seven in the hundreths place.
Can someone help me please
Answers
Given:
The figure of a right angle triangle with legs a and 7, and hypotenuse c.
The measure of angle opposite to leg 7 is 30^\circ.
To find:
All the missing measures for the triangle.
Solution:
According to the angle sum property, the sum of all interior angles of a triangle is 180 degrees. So,
[tex]30^\circ+90^\circ+\text{Missing angle}=180^\circ[/tex]
[tex]120^\circ+\text{Missing angle}=180^\circ[/tex]
[tex]\text{Missing angle}=180^\circ-120^\circ[/tex]
[tex]\text{Missing angle}=60^\circ[/tex]
In a right angle triangle ,
[tex]\sin\theta=\dfrac{Perpendicular}{Hypotenuse}[/tex]
[tex]\sin (30^\circ)=\dfrac{7}{c}[/tex]
[tex]\dfrac{1}{2}=\dfrac{7}{c}[/tex]
[tex]c=7\times 2[/tex]
[tex]c=14[/tex]
In a right angle triangle,
[tex]\tan \theta =\dfrac{Perpendicular}{Base}[/tex]
[tex]\tan (30^\circ)=\dfrac{7}{a}[/tex]
[tex]\dfrac{1}{\sqrt{3}}=\dfrac{7}{a}[/tex]
[tex]a=7\times \sqrt{3}[/tex]
[tex]a=7\sqrt{3}[/tex]
Therefore, the measure of the missing angle is 60 degrees. Side "a" has a length of 14 units and side "c" has a length of [tex]7\sqrt{3}[/tex] units.
help ASAP please plz
Answers
The area of one triangular face of the square pyramid is 320 square feet:
As shown in the net, use the side length 32 ft from the square face as the base of a triangle.
Use formula 1/2 • base • height to find the area of one triangular face:
1/2 • 32 • 20 = 320
FINAL ANSWER: The area of one triangular face is 320 square feet.
Part B
The surface area of the square pyramid is 2,304 square feet.
Add up area of each face in the net:
Area of the square base: 32 • 32 = 1,024
AREA- 1,024 square feet
We know that the area of one triangular face is 320 square feet. Since we have 4 triangular faces, we will multiply 320 by 4:
320 • 4 = 1,280
ADD area of squara base and area of 4 triangular faces:
1,024 + 1,280 = 2,304
FINAL ANSWER: the surface area of the square pyramid is 2,304 square feet
HAVE A NICE DAY!
(Brainliest will be appreciated)
-SpaceMarsh
Một công ty có đại lý bán sản phẩm trên toàn
quốc, để tìm hiểu tình hình tiêu thụ trong một
tuần lễ sau một đợt quảng cáo, ta có số liệu sau:
2,7
2,9
3,1
3,2
3,4
3,7
Doanh 2,7
số (tr)
Sổ đại lý
8
15
20
30
15
12
Answers
Answer:
PooooppooooooooppooooooooppoopoooooooooppStep-by-step explanation:
12. *
12. The Earth is estimated to be 4,540,000,000
years old. What is the Earth's age in scientific
notation?
a) 4.54 x 10°
b) 4.54 x 10-14
c) 4.54 x 1011
d) 4.54 x 1010
A
С
D
Please help
Answers
Answer:
4.54 x 1010
Hope this helps!
What is the value of x ?
Answers
Answer:
What is the value of x?
Whenever we have a problem to solve we assume the unknown quantity(or value to be identified) as x. This is just a convention followed in algebra by using a variable to denote the unknown quantity and then arrive at the solution.
What is the value of X?
What's the value of X?
X + X = X, what is the value of X?
What is the value of x ? How can I find it?
Do you know the value of x?
Value of X can be any numerical value or anything but depends solely on your question .But I find no question ok lets take an example .
If an equation is given ,
X+2=4
=> X=4–2
=>X=2
We X's value as 2 .
Now another ,
X + Y = 5 , 2X + 5Y = 10
Now taking first equation
X = 5-Y ………………………..(1)
Now taking second equation
X= 10–5Y/2…………………(2)
Now,
2(5-Y) = 10–5Y
=> 10–2Y = 10–5Y
=> 2Y = 5Y
Y has no value here because this equation not correctly represented .
Hence ,
We conclude the value of X varies with equation .
Thank You ,
Answer:
28.61258...
Step-by-step explanation:
Don't really know how to explain this over a computer, but it is correct.
Hope that this helps!
The value of StartRoot 52 EndRoot. is between which two integers?
5 and 6
6 and 7
7 and 8
8 and 9
Answers
===============================================
Explanation:
When you list out the perfect squares, notice that 49 and 64 are on that list.
These are values we focus on because 49 < 52 < 64
We'll apply the square root to all three sides
[tex]49 < 52 < 64\\\\\sqrt{49} < \sqrt{52} < \sqrt{64}\\\\7 < \sqrt{52} < 8\\\\[/tex]
This shows that [tex]\sqrt{52}[/tex] is between 7 and 8
A calculator helps confirm this
[tex]\sqrt{52} \approx 7.2111\\\\[/tex]
Suppose 54% of the registered voters in a country are Democrats. If a sample of 770 voters is selected, what is the probability that the sample proportion of Democrats will be greater than 52%? Round your answer to four decimal places.
Answers
Answer:
0.8665 = 86.65% probability that the sample proportion of Democrats will be greater than 52%.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
Suppose 54% of the registered voters in a country are Democrats. Sample of 770.
This means that:
[tex]p = 0.54, s = \sqrt{\frac{0.54*0.46}{770}} = 0.01796[/tex]
What is the probability that the sample proportion of Democrats will be greater than 52%?
This is 1 subtracted by the p-value of Z when X = 0.52. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{0.52 - 0.54}{0.01796}[/tex]
[tex]Z = -1.11[/tex]
[tex]Z = -1.11[/tex] has a p-value of 0.1335
1 - 0.1335 = 0.8665
0.8665 = 86.65% probability that the sample proportion of Democrats will be greater than 52%.
Which of the following best describes the relationship between (x - 2) and the
polynomial 2x3 + x2-3?
Answers
Answer:
If (x - 2) is a factor of 2x³ + x² - 3 then for the value of x = 2 the polynomial is equal zero.
Substitute:
2 · 2³ + 2² - 3 = 2 · 8 + 4 - 3 = 16 + 4 - 3 = 17 ≠ 0
Answer: B) (x - 2) is not a factor.
Computer World has all computers on sale
for 20% off. If the regular price of a laptop is
$750, what is the sale price?
Answers
Answer:
The sale price is $150
Step-by-step explanation:
1. Turn your percent into a decimal.
20% = 0.20 or 0.2
2. Multiply the decimal by 750.
0.2 x 150 = $150
(i usually use a calculator for this part)
1. Angles measuring 8x – 3 and 7x + 18 are supplementary. Find the measure of each angle. (5 points)
Answers
Answer:
85º and 95º
Step-by-step explanation:
supplementary angle total 180
(8x – 3) + (7x + 18) = 180
Combine like terms
15x + 15 = 180
15x = 165
x = 11
---------------------
8x – 3
8(11) - 3
88 - 3
85º
7x + 18
7(11) + 18
77 + 18
95º
Find cos(A+B), given sinA=35 and cosB=−12/13 and both A and B are in π2<θ<π
Answers
Answer:
[tex] \cos(A + B) = \cos A \cos B - \sin A \sin \: B \\ but : \cos \: A = \sqrt{1 - ({ \frac{3}{5} })^{2} } = \frac{4}{5} \\ : \sin B = \sqrt{1 - {( \frac{ - 12}{13} })^{2} } = \frac{5}{13} \\ \therefore \cos(A + B) = ( \frac{4}{5} )( \frac{ - 21}{13} ) - ( \frac{3}{5} )( \frac{5}{13} ) \\ = \frac{ - 84}{65} - \frac{3}{13} \\ = \frac{ - 99}{65} \\ = - 1.52[/tex]
Several logs are stored in a pile with 22 logs on the bottom layer, 21 on the second layer, 20 on the
third layer, and so on. If the top layer has one log, how many logs are in the pile?
Answers
Answer:
[22 x 21] / 2=231 or "c"
Step-by-step explanation:
HELP TIMED
Which is equivalent to ?
Answers
Answer:
C the one with the 12
so the 3 turn into 1/3 now 1/3 times 1/4 = 1/12
now turn the 1/12 into the outside of the sign
Step-by-step explanation:
PLZZZ HELP ✨✨✨ ILL MARK BRAINIEST TYSMMM
Answers
Answer:
3
Step-by-step explanation:
She walked 4 days and 3/4 mile per day
To find the total distance, multiply the days by the number of miles per day
4 * 3/4 = 3 miles
Answer:
c 3
Step-by-step explanation:
3/4×4/1=3 u welcomeeeeeee
Question 20 of 25
The houses on a city block were thought to be valued at $172,000, $164,000,
$142,000, $159,000, $191,000, $124,000, and $146,000, respectively. But a
public assessor has determined that the value of each house is actually
$20,000 higher than previously thought. According to the public assessor,
what is the median value of the houses?
A. $166,000
B. $146,000
C. $179,000
D. $159,000
SU
Answers
Answer:
Median = $179,000
Step-by-step explanation:
Given prices of the houses :
$172,000 , $164,000 , $142,000 , $159,000 , $191,000 , $124,000 , $146,000
Arrange the data in ascending order :
$124,000 , $142,000 , $146,000 , $159,000, $164,000 , $172,000, $191,000
Prices according to the public assessor :
$144,000 , $162,000 , $166,000 , $179,000 , $184,000, $192,000, $211,000
Median is the middle value in the data : $179,000
1 point
2. Which number line shows all the values of x that make the inequality -3x
+17 true? *
А Н
2
.1
о
1
2
3
4
В
3
2
1
0
H
1
2
4
5
C
-3
2
0
1
2
3
4
5
D
3
2
0
1
2
А.
B
оооо
D
Answers
Answer: c
Step-by-step explanation: it is the answer i think (Jesus love you he is coming back)
The number line (d) represents the values of x that makes -3x + 1 < 7 to be true
How to determine the number line?The inequality is given as:
-3x + 1 < 7
Subtract 1 from both sides
-3x < 6
Divide both sides by -3
x > -2
This means that the number line must show an inequality that is greater than -2
From the list of options, the number line that represents x > -2 is (d)
Hence, the number line (d) represents the values of x that makes -3x + 1 < 7 to be true
Read more about number lines at:
https://brainly.com/question/4727909
#SPJ5
I will mark the brainliest 500 points
Answers
Answer:
50.3
Step-by-step explanation:
Answer:
50.3
Step-by-step explanation:
I know this because im smaart
Which expression is equivalent to 250 + 150 ?
Answers
Answer:
if 25c + 15d = 0, then d = -25/15c
Step-by-step explan
just yes, that
Pre algebra please help
Answers
Answer:
It's A, D, and F
Step-by-step explanation:
The answer to the question is 8a+26 so everything else that equals that is the answer.
help !!!!!!!!!!!!!!!!!!!!
Answers
Answer:
I think it's a square or maybe a rhombus?
Step-by-step explanation:
Find the surface area of the prism.
7 mm
4 mm
5 mm
Answers
Answer:
Since there are 2 sides, a front & back, and a top & bottom, you must find the surface area of each of those 3 surfaces and multiply by 2.
Step-by-step explanation:
The formula would be:
Top & Bottom - 5 × 4 (multiply by 2 for top AND bottom)
Front & Back - 5 × 7 (multiply by 2 for front AND back)
Sides - 4 × 7 (multiply by 2 for BOTH sides)
___________________________________________________
Once you find the 3 surface areas, add the areas all together for the total. (I did not show the answer because that is for you to do on your own.)
Ex. Top & Bottom + Front & Back + Sides
Answer:
166 is the answer.