Answer:
you are correct
Step-by-step explanation:
since this was a random sampling, there can be no source of bias.
Issa knows that ΔRED ≅ ΔTAN by the SSS theorem. She then concluded that ∠R ≅ ∠T. What reason can she use as a justification? a CPCTC b vertical angle theorem c alternate interior angles d None of these choices are correct.
Answer:
(A)CPCTC
Step-by-step explanation:
Issa knows that ΔRED ≅ ΔTAN by the SSS theorem.
If two triangles are congruent, their corresponding parts will always be congruent. In fact, their corresponding angles will be equal.
Therefore, Issa concluded that ∠R ≅ ∠T by the fact that Corresponding Parts of Congruent Triangles are Congruent (CPCTC).
The correct option is A.
Similarly, we can also conclude that:
∠E ≅ ∠A; and∠D ≅ ∠Nwhat is the volume of the cylinder below?
the volume of the cylinder is d)168 units
which of the binomal below is a factor of this trinomal x^2+7x+44
Answer:
-7 ± i√127
x = -----------------
2
Step-by-step explanation:
Next time, please share the possible answers. Thank you.
x^2 + 7x + 44 has a parabolic graph that opens up and never intersects the x-axis. Thus, it has no real roots.
The coefficients of this polynomial are a = 1, b = 7, c = 44.
The discriminant is b^2 - 4ac, or 7^2 - 4(1)(44) = -127. As expected, this is negative, confirming that the roots are complex.
The roots are:
-7 ± i√127
x = -----------------
2
PLEASE HELP ASAP SHOE YOUR WORK!!!! Best answer gets brainliest :)
Answer:
Height = 3cm
Volume = 50.27cm^3
Step-by-step explanation:
Well to solve for the height with slant height and radius we can use the Pythagorean Theorem,
Which is [tex]a^2 + b^2 = c^2[/tex].
So we have c and a, so we have to fill those in.
(4)^2 + b^2 = (5)^2
16 + b^2 = 25
-16
b^2 = 9
[tex]\sqrt{b} \sqrt{9}[/tex]
b = 3cm
So to find the volume of a cone we use the following formula [tex]\pi r^2 \frac{h}{3}[/tex].
So we have the radius and height so we just fill those in.
(pi)(4)^2(3)/3
(pi)16(1)
pi*16
About 50.27cm^3
Evaluate the following expressions for x = -4
Answer:
-1/16
-1/4
1
-4
16
Step-by-step explanation:
Put x as -4 and solve.
-4^-2 = 1/-4^2 = -1/16
-4^-1 = 1/-4 = -1/4
-4^0 = 1
-4^1 = -4
-4^2 = 16
Two consecutive odd whole numbers are selected. The difference between the reciprocals of the two numbers is 2/143. Determine the two numbers.
Answer:
The numbers are 11 and 13
Step-by-step explanation:
Let
the first odd whole number=x
Reciprocal=1/x
Second odd whole number=x+2
Reciprocal=1/x+2
The difference
(1/x) - 1/(x+2)=2/143
(x+2)-x / (x)(x+2)=2/143
x+2-x/x(x+2)=2/143
2/x(x+2)=2/143
2(143)=2(x^2+2x)
286=2x^2+4x
2x^2+4x-286=0
x^2+2x-143=0
Solve the quadratic Equation
x=-b +or- √b^2-4ac/2a
a=1
b=2
c=-143
x= -b +or- √b^2-4ac/2a
=-2 +or- √(2)^2-(4)(1)(-143) / 2(1)
= -2 +or- √4-(-572) / 2
= -2 +or- √4+572/2
= -2 +or- √576/2
= -2 +or- 24/2
x= -2+24/2
= 22/2
=11
Or
x= -2-24/2
= -26/2
= -13
Taking the positive value
x=11
The second odd whole number=x+2
=11+2
=13
PLEASE HELP ME ASAP!
Answer:
x =- 3 and y = -7
Step-by-step explanation:
2X-2Y=-8
X=2y + 11
We need to isolate both X and Y in both equations
so
2x-2y=-8
(add 2y to both sides)
2x=-8+ 2y
(divide both sides by 2)
x=-4+y and x=2y+11
because both of these equations are the same we can put them together
4+y=2y+11
(subtract y)
4=y+11
(subtract 11)
-7=y
so y = -7
then to find x you just need to plug in y to one of the equations
x=2(-7) + 11
x= -14 +11
x = -3
Answer:
x = - 19, y = - 15
Step-by-step explanation:
Given the 2 equations
2x - 2y = - 8 → (1)
x = 2y + 11 → (2)
Substitute x = 2y + 11 into (1)
2(2y + 11) - 2y = - 8 ← distribute and simplify left side
4y + 22 - 2y = - 8
2y + 22 = - 8 ( subtract 22 from both sides )
2y = - 30 ( divide both sides by 2 )
y = - 15
Substitute y = - 15 into (2) for corresponding value of x
x = 2(- 15) + 11 = - 30 + 11 = - 19
Solution is x = - 19, y = - 15
For the diagram shown, which angles are alternate interior angles? ∠3 and ∠6 ∠8 and ∠2 ∠4 and ∠7 ∠3 and ∠5
Answer:
3 and 5
Step-by-step explanation:
Alternate interior angles are the angles in between the two lines and on the inside
4 and 6
3 and 5
Answer:
∠3 and ∠5 are alternate interior angles
Step-by-step explanation:
By the definition, alternate interior angles are angles that are inside the lines and opposite sides of each other on the transversal.
A coordinate plane. Which expression could help you find the distance between (10, 4) and (–6, 4)?
Answer:
d=16
Step-by-step explanation:
d: distance (10,4),(-6,4)
d=√(x2-x1)^2+(y2-y1)^2
d=√(-6-10)^2+(4-4)^2
d=√16^2
d=16
Answer:
go 4 to right or where is positive then thats it
Step-by-step explanation:
lololololololololololololol
HELP SOMEONE PLEASE! SO CONFUSED
Answer: The area is 24 square units.
Step-by-step explanation:
Things you need to use in this exercise:
Area of a circle = pi*r^2
r is the radius, equal to half the diameter.
Ok, in the image we can see 3 half-circles.
one has a diameter of 8 units: with area A (the left one)
other has a diameter of 6 units: with area B (the bottom one)
and the other has a diameter equal to the hypotenuse of the right triangle: with area C (the white semicircle that also includes the right triangle)
Now, you can think the shaded area as:
The sum of the areas of the half circles A and B, minus the area of the half-circle C, plus the area of the right triangle (because the white triangle is also included in the white semicircle)
So the area is:
A + B - C + area triangle
A = pi*(8/2)^2 = 3.14*4^2 = 50.24
B = pi*(6/2)^2 = 3.14*3^2 = 28.26
the area of the triangle is equal to:
T = 6*8/2 = 24
Now, to obtain the area of the white semicircle ( C) we need the hypotenuse of the triangle, so here we can use the Pythagorean's theorem:
H^2 = 8^2 +6^2
H = √(8^2 + 6^2) = 10
Then:
C = pi*(10/2)^2 = 3.14*5^2 = 78.5
Then the shaded area is:
Area = 50.24 + 28.26 + 24 - 78.5 = 24
Will and Grace are canoeing on a lake that is $2350$ meters across from the west side of the lake to the east side. Will rows at $50$ meters per minute and Grace rows at $10$ meters per minute. Will starts rowing at 2 PM from the west end of the lake, and Grace starts rowing from the east end of the lake at 2:05 PM. If they always row directly towards each other, at what time will the two meet?
Answer:
2:40 when they meet
Step-by-step explanation:
During Samuel’s experiment, the experimental probability was 0.25. What else must be true about the experiment?
The experimental probability of the outcome is 1/4
The experiment has four possible outcomes.
The theoretical probability of the outcome is 1/4
four trials were run during the experiment.
Answer:
The experimental probability of the outcome is 1/4
Step-by-step explanation:
If Samuel's experiment probability was 0.25, this depicts that the experimental probability of the outcome is 1/4, because:
1/4=0.25
It's not the theoretical probability, because Samuel's developed an experiment, it cannot be theoretical, he has experimental evidences.
Answer:
the first one
Step-by-step explanation:
help me.........................
Answer:
86°solution,
Draw a line RM parallel to line PQ and ST .And the line RM divides the angle W in two part .i.e x° and y°
<w=X+y
If RM is parallel to ST then,
<MRT=<SRT (being alternate angles)
<X=34°
If RM is parallel to PQ then,
<PQR=<MQR( being alternate angles)
52°=y
y=52°
now,
w=X+y
=34° +52°
=86°
Hope this helps...
Good luck on your assignment..
A book consists of 264 pages . Parul had read 3/4 of the book till yesterday . How many more pages she has to read?
Step-by-step explanation:
1/4 of the book = 66 pages
1/2 of the book = 132 pages
3/4 of the book = 132 + 66 = 198 pages
Answer:
66 pagesStep-by-step explanation:
Total pages = 264
No of page read =[tex] \frac{3}{4} [/tex]( total pages)
[tex] = \frac{3}{4} \times 264[/tex]
Reduce the numbers with GCF 4
[tex] = 3 \times 66[/tex]
Calculate the product
[tex] = 198 \: pages[/tex]
Parul read 198 pages of the book till yesterday.
Again,
No.of pages to be read :
Total pages - No.of pages read
= 264 - 198
= 66 pages.
Thus, She has to read 66 pages more.
Hope this helps...
Good luck on your assignment..
Resuelve la siguiente ecuación: 15x = 27 + 6x (escribe el valor de x nada mas) ayudaaaaaaaaa porfavor se los pidooooo!!
Answer:
x=3
Step-by-step explanation:
15x=27+6x
subtract 6x
9x=27
divide 9
x=3
X=3
Step-by-step explanation:
15x = 27 + 6x
15x - 6x =27
9x =27
X= 27/9
X= 3
[tex]hope \: this \: helps[/tex]
Which correlation coefficient implies that the data points are closest to the line that is used to model the
points?
r≈0.3
r≈ 0.87
r≈-0.52
r≈-0.9
Answer:
r= 0.87
Step-by-step explanation:
It has the strongest correlation, which means it is closest to the line.
A giant jar of jelly beans contains 1,463 jelly beans that are cherry-flavored and 5,080 jelly beans that are not cherry-flavored. What is the ratio of the number of jelly beans that are cherry-flavored to the number of jelly beans that are not cherry-flavored?
Answer:
1463 : 5080
Step-by-step explanation:
There are 1463 cherry-flavored jelly beans.
There are 5080 non cherry-flavored jelly beans.
The ratio of cherry-flavored jelly beans to non-flavored jelly beans is:
1463 : 5080
pipefitter must connect two pipes as shown. The run is 35 feet while the set is 23 feet. How long a pipe will he need, C, and what will be the connecting angles, "a" and "b"? Round to the nearest hundredth. Enter your answers in the order: C, a, b.
The attached picture was omitted from the question.
Answer:
C = 41.88 feet
a = 33.1°
b = 56.9°
Step-by-step explanation:
From the diagram, we have a right angle triangle.
C = hypotenuse
C = sqrt(35^2 + 23^2)
C = sqrt(1225 + 529)
C = sqrt(1754)
C = 41.88 feet
The connecting Angles:
Angle 'a'
Using tan = opposite / Adjacent
Tan a = 23 / 35
tan a = 0.6571428
a = tan^-1 (0.6571428)
a = 33.1°
Angle 'b' :
Sum of angles in a triangle = 180
a + b + 90 = 180
33.1 + b + 90 = 180
b + 123.1 = 180
b = 180 - 123.1
b = 56.9°
The measure of major arc ACB is _____ degrees. (Enter only a number as your answer)
Answer:
Step-by-step explanation:
measure of angles of a circle=360
angle ACB=360-82=278 degrees
PLEASE HELP ME ASAP FOR BRAINLIEST
Answer:
First one: true Second one: true
Step-by-step explanation:
First Question: the lines will be parellel even though the shape grows or gets smaller
Second Question: the angle will stay the same even if it grows into a larger or smaller shape.
Which is equivalent equation solved for h?
Answer:
The answer is option A.
p = 0.7(rh + b)
Making h the subject
divide both sides by 0.7
we get
p/0.7 = rh + b
send b to the left side of the equation
p / 0.7 - b = rh
divide both sides by r
we get
( p / 0.7 - b) ÷ r = h
therefore h = ( p / 0.7 - b ) ÷ r
Hope this helps
0.1 reapeating as a raction
Answer:
1/9
Step-by-step explanation:
1/9 in decimal format is .11111 repeated
Answer:
1/9
Step-by-step explanation:
if you want repeating numbers in decimal form changed to a fraction, put a nines in the denominator. I repeating is 1/9. Another example, 12 repeating is 12/99. However many numbers there are in the numerator, put the same amount in the denominator but all nines. Another example, 108 repeating in a fraction form is 108/999. Three numbers in the numerator, so three 9's in the denominator. Hope this helps! :)
Timmy writes the equation f(x) = f(x) equals StartFraction one-fourth EndFraction x minus 1.x – 1. He then doubles both of the terms on the right side to create the equation g(x) = g(x) equals StartFraction one-half EndFraction x minus 2.x – 2. How does the graph of g(x) compare to the graph of f(x)? The line of g(x) is steeper and has a higher y-intercept. The line of g(x) is less steep and has a lower y-intercept. The line of g(x) is steeper and has a lower y-intercept. The line of g(x) is less steep and has a higher y-intercept.
Answer:
the line of g(x) is steeper and has lower y intercept
Step-by-step explanation:
f(x)=1/4x-1
g(x)=1/2x-2
g(x) is steeper because the slope of gx is greater than f(x)
y intercept of gx=-2 and for f(x)=-1
the y intercept of g(x) is lower than the y intercept of f(x)
The steepness of a function is dependent on its slope.
The true statement is: (c) the line of g(x) is steeper and has lower y intercept
The equations are given as:
[tex]\mathbf{f(x)= \frac 14x-1}[/tex]
[tex]\mathbf{g(x)=\frac12x - 2}[/tex]
A linear function is represented as:
[tex]\mathbf{y = mx + b}[/tex]
Where:
m represents the slope/steepb represents the y-interceptFor f(x)
[tex]\mathbf{m_1 = \frac{1}4}\\\mathbf{b = -1}[/tex]
For g(x)
[tex]\mathbf{m_1 = \frac{1}2}\\\mathbf{b = -2}[/tex]
By comparison:
Steepness: 1/2 > 1/4y-intercept: -1 > -2This means that: the line of g(x) is steeper and has lower y intercept
Hence, the true option is: (c)
Read more about steep and intercepts at:
https://brainly.com/question/3309622
What is the volume of the prism below? 8 7 5
Answer:
V=280
Step-by-step explanation:
V=whl
V=(8)(7)(5)
V=280
Answer:
140 units ^3
Step-by-step explanation:
a p e x
HELP ME PLEASE PLEASE IM BEGGING
Need help please, thanks if you do :)
Answer:
Step-by-step explanation:
Orchestra Seats: Balcony seats + 7Orchestra Seats: 600Balcony Seats: 120Total Amount of Sales: 13,560A.) 600 x 20 = 12,000
120 x 27 = 3,240
12,000 + 3,240 = 15,240
B.) 600 x 13 = 7,800
120 x 20 = 2,400
7,800 + 2,400 = 10,200
C.) 600 x 18 = 10,800
120 x 25 = 3,000
10,800 + 3,000 = 13,800
D.) 600 x 11 = 6,600
120 x 18 = 2,160
6,600 + 2,160 = 8,760
9) Mr.Rao bought 1-year, Rs.10000 certificate of deposit that paid interest at an annual rate of 8%
compounded semi-annually. The interest received by him on maturity is
Answer:
Rs 816
Step-by-step explanation:
For the above question, the formula to use is given as:
Amount = P( 1 + r/n)^nt
Given, P = 10,000
r = 8% = 0.08
n = 2 = semi annually
t = 1 year
Amount = 10,000( 1 + 0.08/2)^2×1
Amount = 10,000( 1 + 0.04)²
= 10,000(1.04)²
= 10,000(1.0816)
= 10,816
Hence, Interest is calculated as
Amount - Principal
interest = Rs. 10,816 − Rs. 10000
= Rs. 816
Hence, interest paid at the time of maturity is Rs. 816.
write 109 as a decimal.
——
50
Answer:
Hello there!
~~~~~~~~~~~~~~~~~~~~~~`
Convert the fraction to a decimal by dividing the numerator by the denominator.
[tex]109 / 50 = 2.18[/tex]
Hope this helped you. Brainliest would be nice!
The ratio of the amount of vitamin A in cow milk to the amount of vitamin A in goat milk is 333 to 444. If a liter of cow milk has 156015601560 international units (\text{IU})(IU)left parenthesis, start text, I, U, end text, right parenthesis of vitamin A, how many \text{IU}IUstart text, I, U, end text of vitamin A are in a liter of goat milk?
Answer:
[tex]Goat = 2080IU[/tex]
Step-by-step explanation:
Given
Ratio = 3 : 4
Litre of cow = 1560IU
Required
IU of a litre of goat
The ratio represents ratio of cow milk to goat milk
In other words;
[tex]Cow:Goat = 3 : 4[/tex]
To calculate the number of IU in a litre of goat milk; we substitute Cow with 1650 in the above expression
[tex]Cow:Goat = 3 : 4[/tex]
[tex]1560:Goat = 3 : 4[/tex]
Convert to fraction
[tex]\frac{1560}{Goat} = \frac{3}{4}[/tex]
Multiply both sides by 4
[tex]4 * \frac{1560}{Goat} = \frac{3}{4} * 4[/tex]
[tex]\frac{4 * 1560}{Goat} = \frac{ 4 * 3}{4}[/tex]
[tex]\frac{6240}{Goat} = 3[/tex]
Multiply both sides by Goat
[tex]Goat * \frac{6240}{Goat} = 3 * Goat[/tex]
[tex]6240 = 3 * Goat[/tex]
Divide both sides by 3
[tex]\frac{6240}{3} = \frac{3 * Goat}{3}[/tex]
[tex]\frac{6240}{3} = \frac{3 * Goat}{3}[/tex]
[tex]2080 = Goat[/tex]
[tex]Goat = 2080[/tex]
Decide whether the primary or secondary data is most suited for the hypothesis below. The number of cars that drive past your house on Monday morning is more than on Tuesday morning is it PRIAMRY OR SECONDARY???????
Answer:
Primary source
Step-by-step explanation:
This is because it says "your" house, it means that you are the one looking and counting at the number of cars.
If this was not said "your", there is a higher chance that it is a secondary source, but in this case, it is a primary source.
Its Primary source
HOPE IT HELPS