Step-by-step explanation:
the correct one is b - 9 since sum of all angles of a triangle is 180
Determine if the expression 3 (x + 2) is equivalent to 3x + 6
In a 3-digit number, the hundreds digit is one more than the ones digit and the tens digit is twice the hundreds digit. If the sum of the digits is 11, find the number.
Answer:
362
Step-by-step explanation:
Let the ones digit equal x. If the ones digit is one, then the hundreds digit is one more than it or x + 1. And, since the tens digit is twice the hundreds digit, you can say it is 2(x + 1) or as simplified: 2x + 2. Now, we are given the sum of the digits is 11, so if we add all of them, they should be equal to 11:
x + x + 1 + 2x + 2 = 11
We can combine like terms:
4x + 3 = 11
4x = 8
x = 2
So, the ones digit is 2. Since the hundreds digit is one more, it's 3. And because the tens is twice the hundreds, it's 6. The number is 362.
Answer:
362
Step-by-step explanation:
the answer is 363 bcz 3*2=6.3-1 is 2 and 6+3+2 os 11.This satisfys all three condisions.Now the equations if x is the hundreths digit is :x+(2x)+(x-1)=11.
I hope this helps
find each sum (-4y+3) + (11y-5)
Answer:
7y−2
Step-by-step explanation:
What is the difference between Maggi and Pasta? -,-
I believe the difference is where it is made ^^
maggi is made in India and pasta is made in Italy
they may also have different sauces and spices used which also helps differ between the two :3
1. Maggi is Maggie and Pasta is Pasta.
2. Maggie can be made in 2 minutes. Pasta require at least 10 to 15 minutes.
3. Maggie is generally accompanied with veggies. Pasta is accompanied with sauses.
4. Maggie stick together like pudding in the lunch box. Pasta is unaffected.
The diameter of a circle is 4cm. Which equation can be used to find its circumference? A. C=pi x2 B. C=pi x 4 C. C=pi x 4/2 D. C= pi x 4/4
Answer:
d is correct
Step-by-step explanation:
What is the answer to that
Answer:
can you show me the picture? I will edit my answer if you show me full picture
Step-by-step explanation:
Help me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
This is graphing radical equations does anyone know the equation?
Answer:
[tex]f(x)=\sqrt{x}+5[/tex]
Step-by-step explanation:
The parent function of the graph is clearly [tex]f(x)=\sqrt{x}[/tex]. However, at [tex]x=0[/tex], y is equal to 5. Therefore, the function translated up 5 units. Thus, the equation of the function is [tex]f(x)=\sqrt{x}+5[/tex].
Answer:
f(x) = 5 + √x
Step-by-step explanation:
x= 0 ==> y = 5
x= 25 ==> y = 10
this is sq root function, starting from y=5
so, f(x) = 5 + √x
People who experience online harassment either ignore it or respond via postings or involving authorities Is one method more effective than the other? A 2014 Pew Research Center report, based on a random sample of American adults, found that 412 of the 549 respondents who had chosen to ignore online harassment thought that it was an effective way to deal with the issue. Of the 368 respondents who had chosen to respond to online harassment, 305 thought that it had been effective A.
Required:
a. Is there good evidence that one approach is more likely to be effective than the other? State the null and alternative hypotheses, obtain the test statistic and P-value, and conclude in context.
b. How large is the difference? Obtain and interpret in context a 95% confidence interval for the difference between the proportions of American adults who find ignoring online harassment effective and those who find responding to it effective.
c. How effective is that best method? Obtain and interpret in context a 95% confidence interval for theproportion of American adults who find the best m ethod effective.
Answer:
Step-by-step explanation:
First method information:
Sample size n₁ = 549
x₁ ( people ignoring on-line harassment ) = 412
Proportion of people ignoring on-line harassment p₁
p₁ = 412/549 p₁ = 0,75 q₁ = 1 - p₁ q₁ = 0,25
Second method ( people chosen to respond)
Sample size n₂ = 368
number of people responding x₂ = 305
Proportion of people responding
p₂ = 305/ 368 p₂ = 0,83 then q₂ = 0,17
a) Looking for differences in the approachs
Hypothesis test:
Null Hypothesis H₀ p₁ = p₂
Alternative Hypothesis Hₐ p₁ ≠ p₂
Alternative Hypothesis indicates that the test is a two-tail test
Choosing a confidence interval CI = 95 % then a significance level is α = 5% α = 0,05 and from z-table we get z(c) = 1.64
To calculate z(s)
z(s) = ( p₁ - p₂ ) / EED
EED = √ p₁*q₁)/n₁ + (p₂*q₂)n₂
EED = √ (0,75*0,25)/549 + 0,83*0,17)/368
EED = √ 3,41 *10⁻⁴ + 3,83*10⁻⁴
EED = 10⁻² *√ 3,41 + 3,83
EED = 10⁻² * 2,69
EED = 0,0269
z(s) = ( p₁ - p₂ )/0,0269
z(s) = - 0,08 / 0,0269
z(s) = - 2,97
p-value for z(s) is pvalue = 0,0015
Comparing z(s) and z(c) modules
z(s) > z(c) therefor z(s) is in the rejection region we have to reject H₀ and claim that there is a difference between the proportions
b) How large is the difference
If mL2=3x+1 and mL3=2x+4, what is mL2
A)38
B)17
C)90
D)52
Answer:
D) 52
there is a 90 degrees angle and the one inside, it is less than 90 degrees so your answer is 52
What is the equation for the product of a number g and 5 is 30?
Answer:
6?
Step-by-step explanation:
The perimeter of this shape is 120 π mm
What is the radius of the smaller semicircles?
Answer:
15mm
Step-by-step explanation
It says the perimeter is 120 pi, if pi is separate from 120, that would make 120 our radius 60. with 4 semicircles, divide 60 by 4 and boom, 15.
I think that's right, I was never good at geometry
A spinner has 4 blue sections, 6 red sections and 2 green sections. It is spun 24 times. For numbers 2a. – 2c., circle YES or NO to indicate whether you would expect the spinner to land on the given color the number of times stated.
Answer:
Blue = YES
Red = NO
Green = YES
Step-by-step explanation:
Given the distribution of colors on a spinner :
Blue = 4 ; Red = 6 ; Green = 2
Number of spins = 24
Total = (4 + 6 + 2) = 12
Recall:
Probability, P = required outcome / Total possible outcomes
P(red) = 6 /12 = 1/2
P(blue) = 4 / 12 = 1/3
P(green) = 2 / 12 = 1/6
On 24 spins :
Possible number of red = 1/2 * 24 = 12
Possible number of green = 1/6 * 24 = 4
Possible number of blue = 1/3 * 24 = 8
What are the zeros of the function defined by 2x^2-50
Answer:
[tex]2x^2 - 50 = 0 \\\\2(x^2 - 25) = 0\\\\(x^2 -5^2 ) = 0\\\\(x-5)(x+5) = 0\\\\x = 5, -5[/tex]
can someone do this for me thanks ok bye
Answer:
log2 10 = 3x
Step-by-step explanation:
Basic Logarithm Tenets
Answer:
log2 10=3x
Step-by-step explanation:
is the amswer
Lisa buys 3 pints of milk how many cups did Lisa buy?
Answer:
3 pints = 6 cups
Step-by-step explanation:
Formula: multiply the volume value by 2
Answer:
6 cups
Step-by-step explanation:
1 pint = 2 cups
3 pints = 3x2 cups
3 pints = 6 cups
If this helps please mark as brainliest
Please Help if you can!! I also have more questions in my profile!
Answer:
(4, 0), (-4, 0)
Step-by-step explanation:
Hope it helps you in your learning process.
(0.8)² + (1.4)² please help
Answer:
2.6
Step-by-step explanation:
Answer:
[tex]0.8^2+1.4^2[/tex] equals 2.6
Step-by-step explanation:
[tex]0.8^2+1.4^2[/tex]
= [tex]0.64+1.96[/tex]
= [tex]2.6[/tex]
what is the area of this figure
Answer:
Hello! answer: 10
Step-by-step explanation:
Formula for area of squares: base × height
Formula for area of triangles: base × height ÷ 2
2 × 2 = 4
2 × 2 ÷ 2 = 2
4 × 2 ÷ 2 = 4
4 + 2 + 4 = 10 therefore the area is 10 hope that helps!
Express the cartesian coordinates (1,-1) in polar coordinates in at least two different ways.
Answer:
[tex](\sqrt{2}, \frac{7\pi }{4})[/tex] or
[tex](\sqrt{2},5.5)[/tex] (using the angle in the radian form)
Step-by-step explanation:
Here, we want to write the given rectangular coordinate in its polar form
Mathematically, we start by identifying the quadrant in which we have the point
The point is located in the the fourth quadrant
We have the general polar coordinate form as;
(r,θ)
where;
[tex]r = \sqrt({x}^{2} +y^{2} )\\\\r = \sqrt({-1}^2+1^2) = \sqrt2[/tex]
We have the theta value calculated as;
theta = arc tan (y/x)
y = -1 and x = 1
theta = arc tan (-1/1)
theta = arc tan (-1)
theta = 45+270 = 315
So, we have the polar coordinate expression as;
[tex](\sqrt{2}, \frac{7\pi }{4})[/tex]
or in radians as;
[tex](\sqrt{2}, 5.5)[/tex]
please help!!!!
ignore the writing -_-
Answer:
Haha once again 1200 and 8.5 are the answers
Water flows from a showerhead at a rate of 24^-1 gallons per second. How many gallons do you use when taking a 15-mintue shower? a 20- minute shower?
Answer:15 min=37.5 gal., 20 min=50 gal.
Step-by-step explanation:
Hey! This question can be tricky at first look. So what we’re going to do first is find 24^-1. This would be .0416 rounded to the thousandths place. We are rounding because it is a repeating decimal and it goes on forever or for a while at least. Now we know that .0416 gallons flow each second.
Next, we will multiply by 60 to find how much flows each minutes. We do this because there are 60 seconds in a minute. We then get 2.5 gallons.
We then multiple by the number of minutes which in this case is 15 and 20.
2.5x15= 37.5 gallons
2.5x20=50 gallons
Sorry if I did anything wrong! If you have any questions, I’m sorry because I have messaging turned off! :(
Hope this helps!
helppppppppppppppppppppp
Answer: its B
Step-by-step explanation:
because the circle is open and its the greater than sign
Answer:
E
Step-by-step explanation:
You use subtraction property of equality to get rid of that 4.
Subtract 4 from both sides basically.
You get 2x > 6
Then you divide both sides by 2 to get x > 3
Then you graph it.
So it starts on point 3, and since x is greater than 3, it goes to points greater than 3, so 4, 5, 6, ect. but it never goes below or on 3.
The graph starts on three, as 3.00000000000000001 is a viable solution, but since it says > instead of the underlined >, it is an open circle like o---->
So it is E.
19
The two figures are proportional. Find the value of x.
36 in.
12 in.
<
10 in.
Х
A
12 in
B) 24 in
30 in
40 in
Answer:
C 30 in
Step-by-step explanation:
set a proportion: 36/12 = x/10 => x = 36 × 10 ÷ 12 = 30
Which statement is true of the data?
The center of distribution for 8th grade is greater than the center of the distribution for 7th grade.
The spread of the distribution for 8th grade is equivalent to the spread of the distribution for 7th grade.
The interquartile range of the distribution for 7th grade is 1.5 times the interquartile range of the 8th grade.
The lower quartiles for both data distributions are equal.
Answer:
A.
Step-by-step explanation:
please answer this question I will give you brainliest!
circumference of circle= 2x3.14r
1) radius is 9
2x3.14x9
18x3.14= 56.52
2) radius is 8
2x3.14x8
16x3.14= 50.24
3) radius is 5
2x3.14x5
10x3.14= 31.4
Solve:2y - 3 = 2y - 3
a) y = 0
c) infinitely many solutions
b) y=-3
d) no solutions
Answer:
d. no solution
Step-by-step explanation:
2y - 3 = 2y -3
2y - 2y = -3 + 3
0 = 0
what is it called when the vertex is the lowest value of the parabola
Answer:
a Minimum
Step-by-step explanation:
Why did the coffee shop server love the job? Because they were so...
Answer:
grain sited
Step-by-step explanation:
what is the longest line segment that can be drawn in a right rectangular prism that is 14 cm long 11 cm wide and 7 cm tall
The longest segment is —
pleaseeee
Answer:
The longest segment is approximately 19.13cm
Step-by-step explanation:
Given
[tex]l = 14cm[/tex]
[tex]w = 11cm[/tex]
[tex]h = 7cm[/tex]
Required
The length of the longest segment (d)
This is calculated using:
[tex]d = \sqrt{l^2 +w^2 + h^2[/tex]
So, we have:
[tex]d = \sqrt{14^2 +11^2 +7^2[/tex]
Using a calculator, the equation becomes
[tex]d = \sqrt{366[/tex]
Take square roots
[tex]d = 19.13cm[/tex]