Answer:
it will be D i seen this before
Step-by-step explanation:
Helllllllpppppp pls help me
Answer:
there you go!! it's correct dont worry
I need help what is 1+1 I've been on this for TWO hours...
Answer:
the answer is 2
Step-by-step explanation:
sorry if this is wrong
219 is what percent of 146?
Answer:
150
Step-by-step explanation:
100%/ x% = 219/ 416
Cross multiply
x = 150 %
219 is 150% of 416
If f(x) = - 2x - 8 and g(x) = 4x - 2, for which values of x is f(x) = g(x)? *
9514 1404 393
Answer:
x = -1
Step-by-step explanation:
You want ...
f(x) = g(x)
-2x -8 = 4x -2
-6 = 6x . . . . . . . . . . add 2x +2
-1 = x . . . . . . . . . . divide by 6
Which of the following functions has the same horizontal asymptote as the function graphed below?
Answer:
In most cases, there are two types of functions that have horizontal asymptotes. Functions in quotient form whose denominators are bigger than numerators when x is large positive or large negative.
Step-by-step explanation:
Can Yall help with the question
Answer:
A. Transform Boundary
Step-by-step explanation:
Transform boundaries are places where plates slide sideways past each other
Divergent Boundaries occur when two tectonic plates move away from each other
Convergent Boundaries are when both the plates collide into each other
Subduction boundaries are when one plate bends and slides underneath the other curving down into the mantle
Hope this helps dude
Answer: no learn it urseld caca haha
Step-by-step explanation:
Data from a representative sample were used to estimate that 31% of all computer users in a recent year had tried to get on a Wi-Fi network that was not their own in order to save money. You decide to conduct a survey to estimate this proportion for the current year. What is the required sample size if you want to estimate this proportion with a margin of error of 0.05
Answer:
The required sample size is 329.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
31% of all computer users in a recent year had tried to get on a Wi-Fi network that was not their own in order to save money.
This means that [tex]\pi = 0.31[/tex]
Confidence level is not given, so we assume 95%.
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
What is the required sample size if you want to estimate this proportion with a margin of error of 0.05?
We need a sample size of n. n is found when M = 0.05. So
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.05 = 1.96\sqrt{\frac{0.31*0.69}{n}}[/tex]
[tex]0.05\sqrt{n} = 1.96\sqrt{0.31*0.69}[/tex]
[tex]\sqrt{n} = \frac{1.96\sqrt{0.31*0.69}}{0.05}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96\sqrt{0.31*0.69}}{0.05})^2[/tex]
[tex]n = 328.6[/tex]
Rounding up
The required sample size is 329.
What is the population in 2020 of a place that has a population of 4 million people in 2011 and is growing at a rate of 1.3%?
Answer:
370 million
Step-by-step explanation:
In the 10 years from 2000 to 2010, the population was multiplied by the factor ...
100% + 9.6% = 109.6% = 1.096
In the next 20 years from 2010 to 2030, the population will be multiplied by that factor twice, if it grows at the same rate:
2030 population = (308 million)·(1.096²) ≈ 370 million
i need help with question 1 . Thanks
9514 1404 393
Answer:
x² +2x +1
Step-by-step explanation:
Substitute the given expressions and collect terms.
p(x) -t(x)
(x² +3x -4) -(x -5)
x² +3x -4 -x +5 . . . . . eliminate parentheses
x² +2x +1 . . . . . . . . . .combine like terms
on the grid, which point is located in the quadrant where the x-coordinate is a negative number and the y- coordinate is a positive number¿
Answer:
b
Step-by-step explanation:
because if you look at it the x-coordinate is -6 and the y-coordinate is positive 4
A cylinder has a diameter of 6 cm and a height of 20 cm what is the volume?
Step-by-step explanation:
V = pi r2 h
22/7 × (6/2)^2 × 20
565.71 cm3
Need help to solve this
Answer:
332s+(27xm)
Step-by-step explanation:
because 27 is how much you save per month and you started off with 332
PLEASE ANSWER ASAPPPP
Answer:
If they are parallel then the answer should be 28m
Step-by-step explanation:
Answer:
98 m
Step-by-step explanation:
105/30 = 3.5
3.5 x 28 = 98
how can i do dis plss
What is the circumference of the pizza?
Answer:
28.29 inch.
Step-by-step explanation:
So diameter is 9.
Circumference = pi x d
= 22/7 x 9
=28.29inch.
What is the common difference between successive terms in the sequence?
2, 8, 14, 20, 26, ...
-6
-4
ООО
4
о в
Let be a1 = 8 and a2 = 8 [ From question ]
We have to find out common differences which denoted by letter d .
d = a2 - a1 [ Formula ]
= 8 - 2
= 6
Thus,the common difference between successive terms in the sequence is 6 .
Answer:
6.
Step-by-step explanation:
We have to find out common differences which denoted by letter d .
d = a2 - a1 [ Formula ]
= 8 - 2
= 6
Also,
2+6=8 +6=14 +6=20 +6=26
So, It's Added Up By 6.
Surface Area of a Rectangle please help
Answer:
Step-by-step explanation:
(15x8x2)+(15x6x2)+(6x8x2)=516m
X1 + X2 =-8
3X1 +2X2 = 18
Answer:
X1 = 34
X2 = -42
Step-by-step explanation:
Given the simultaneous equations
X1 + X2 =-8 .... 1 * 3
3X1 +2X2 = 18 .... 2 * 1
______________________
3X1 + 3X2 = -24
3X1 +2X2 = 18
Subtract
3X2 - 2X2 =-24 - 18
X2 = -42
Substitute X2 = -42 into 1
X1 + X2 = -8
X1 - 42 = -8
X1 = -8+42
X1 = 34
Hence the solution to the system of equation is (34, -42)
What is the solution to this addition sentence?
3/4 + (-1/2) = _____
Answer:
1/4
Step-by-step explanation:
-1/2 in to -2/4
3/4+(-2/4)=1/4
Two sides of a right triangle are 8 and 12. Find the missing side of 8 and 12 are a leg and a hypotenuse.
Answer:
8.94 if no rounding is necessary.
Step-by-step explanation:
Pythagorean Theorem. What we know is only one leg and the hypotenuse, sooo...
8² + b² = 12²
64 + b² = 144
Subtract 64 from both sides...
64 - 64 + b² = 144 - 64
b² = 80
[tex]\sqrt{80}[/tex] = 8.94 if you're not rounding.
Sophie can type 128 words in three minutes how many minutes will it take her to type 576 words?
Answer:
13 minutes and 30 seconds
Step-by-step explanation:
Okay so first you would divide 128 by 576. But since it takes her 3 minutes just to type 128 words you have to multiply 4.5 times 3. It will take her 13.5 minutes to type 576 words or 13 minutes and 30 seconds.
Which letter has line symmetry?
Answer:
e. M
Step-by-step explanation:
Answer:
M has line symmetry
Step-by-step explanation:
hope this helps
What is the surface area of this triangular pyramid?
___square inches
Answer:
Surface area = 10.7 in.²
Step-by-step explanation:
Surface Area of triangular pyramid = BA + P*L
Base Area (BA) = ½*nh
b = 2 in.
h = 1.7 in.
BA = ½*2*1.7 = 1.7 in.²
Perimeter (P) = 2 + 2 + 2 = 6 in.
Slant height (L) = 3 in.
Plug in the values
Surface Area = 1.7 + ½*6*3
Surface area = 10.7 in.²
Figure B is a scaled copy of Figure A. Figure A Figure B
Answer:
I believe 2.
Step-by-step explanation:
All the lengths can be multiplied by 2 to equal the lengths of the larger triangle. However, I am not positive.
Answer:
2
Step-by-step explanation:
22x2=44
10x2=20
32x2=64
40x2=80
all of them match so yes they are equivalent
What is an equation of the line that passes through the points (-4, 8) and
(2, -1)?
Answer:
Kayla, learn this, :D more math is based on it. Just learn it, just memorize the following
Step-by-step explanation:
m = slope
m = rise / run
m = y2 - y1 / x2 - x1 ( this is still rise over run but in point form )
they give us two points to plug into the above formula
P1 = (-4, 8 ) in the form of ( x1, y 1 )
P2 = (2, -1) in the form of (x2, y2 )
now plug those into the above formula
m = ( -1 - 8 ) / ( 2-(-4) )
m = -9 / ( 2 + 4 )
m = -9 / 6
m = - 3/2
since we know the slope now , we can use the point slope equation of
y - y1 = m ( x - x1)
use the m we found and either point , P1 or P2
y - 8 = -3/2(x -(-4) )
y-8 = -3/2(x + 4)
y-8 = -3/2x - 6
y = -3/2x -6 + 8
y = -3/2x + 2
there you go :)
Evaluate the expression. 1.8 plus (8.9 - 2.9)
Answer: 7.8
Explanation: 8.9 - 2.9 = 6.0 + 1.8 = 7.8
PlEASE HELP ASAP!!!! USATEST PREP DUE TODAY!!!Please No Links!!!
okey no links here u go
Answer:
2
Step-by-step explanation:
[4^2/(-1+3)^3+2*10] / (10+1)
= [16/8+20] / 11
= 22/11
=2
Hope this helps :) Giving me brainiest would help a lot :))
Give triangle ABC with coordinates A(3, 8), B(9,0) and C(5,2). How can you prove that triangle ABC is isosceles? Show your work.
Answer:
The distances AB and BC are
√
52
and therefore isosceles.
Explanation:
If we label them A(13,-2) B(9-8) and C(5-2)
The distance between A and B:13⇒9=4−2⇒−8=42+62=52 so the distance is √52
The distance between B and c:9⇒5=4−8⇒−2=642+62=52
the distance is
√
52
The distance between A and C is 8 as they are both on -2 for
y
The distances AB and BC are
√
52
and therefore isosceles.Step-by-step explanation:
help please ? I don’t understand I’m in 6th grade
Answer:
22/7 - irrational number
1.141141114 - irrational number
17/4 - rational number
-6 - integer
[tex]\frac{\pi }{2}[/tex] - irrational number
0 - whole number
9 - natural number and whole number
21/3 - natural number and whole number
Step-by-step explanation:
natural numbers would be numbers 1,2,3,4,5,6,7...
whole numbers would be numbers 0,1,2,3,4,5,6...
integers are negative whole numbers
rational numbers are fractions and numbers that have decimal points
irrational numbers are number such as [tex]\pi[/tex] or [tex]\sqrt{5}[/tex]
I NEED HELP.
2X^2-8X= BUT FACTORISE!
Answer:
This is my answer
2x(x-4)
Step-by-step explanation:
2x(x-4)
[tex]\tt{} {2x}^{2} - 8x[/tex]
[tex]\tt{}2x \times (x - 4)[/tex]