Solve for x. The top and bottom sides are parallel B 20x + 9; 10x - 9 А
Answer:
x = 6Step-by-step explanation:
Since bases are parallel, C and D are supplementary angles:
m∠C + m∠D = 180°20x + 9 + 10x - 9 = 18030x = 180x = 180/30x = 6Given :-
Bottom sides are parallel .To find :-
The value of x .Answer :-
As we know that ,
Sum of co interior Angles = 180° .Here ,
20x + 9 and 10x - 9 are co interior Angles.So that ,
20x + 9 + 10x - 9 = 180 30x = 180x = 180/30x = 6°One hundred volunteers who suffer from depression are available for a study involving a new drug that is thought to be effective in treating depression. Researchers want to compare the new drug with the drug currently in use. The researchers believe that men and women may respond differently to the drugs. Fifty of the volunteers are selected at random and are given the new drug, and the other 50 are given the drug currently in use. A psychiatrist evaluates the symptoms of all volunteers after four weeks to determine if there has been substantial improvement in the severity of the depression. Which of the following is correct?
A. This is an example of a block design.
B. Both answer options are correct.
C. This is an example of a completely randomized design.
Step-by-step explanation:
jffkjfkfkro3p2009uh2 that is c my answer
Drag tiles to the board to represent the expression.
Model the algebraic expression x + 2. Then select all
the statements that are true.
x + 2 cannot be modeled with algebra tiles.
The variable x is represented by a rectangular
orange x tile.
The variable x is represented by a square orange +
tile.
O + 2 is represented by 2 rectangular orange x tiles.
+ 2 is represented by 2 square orange +
tiles.
Board sum: 0
Answer:
its 2 and 5
Step-by-step explanation:
stan exo
Simplify this numerical expression. (-12)(-13)
Answer:
156
Step-by-step explanation:
mulitply them, multiplying 2 negative numbers make a positive one. -12 x -13 = 156
Help would be greatly appreciated!Which equation is true?
Answer:
(a) is your answer.
Step-by-step explanation:
IT IS ASSOCIATIVE PROPERTY.
I need this please help
ASAP!!!
graphic linear nonpropotional relationship unsing slope and y-intercept please help
What is the slope of the line?
Answer:
3/2
Step-by-step explanation:
rise over run
What is the velocity of a car that traveled a total of 75 km north in 1.5 hours
Answer:
13.89 m/s
Step-by-step explanation:
Velocity = displacement = time
75 km = 75000 m
1.5 hours = 5400 sec
applying the formula
velocity = 75000 m= 5400 s = 13.89 m/s
Answer:
Velocity= Displacement / Time
= 75/1.5
=50km/hr
Step-by-step explanation:
hope it helps
mark me brainliest pls
Work out the circumference of this circle.
Give your answers in terms of (pi)
Answer:
12π mmStep-by-step explanation:
The circumference equation:
C =2πrGiven:
r = 6 mmThe circumference is:
C = 2π*6 mm = 12π mm[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Circumference of the circle is :
[tex]2\pi r[/tex]now, here radius (r) = 6 mm, let's find the circumference :
[tex]2 \times \pi \times 6[/tex][tex]12\pi \: \: mm[/tex]The diagonal of one side of a rhombus are of equal length. Find the measure of angles of the rhombus.
Consider ABCD is a rhombus
We know that
All sides are equal in rhombus
=> AB=BC=CD=DA
and AC and BD are digonals
Given that
Diagonal and the side of the rhombus are equal.
=> AB = BC = CD = DA = AC
Diagonal AC divides the rhombus into two triangles .
They are ∆ BAC and ∆ DAC
In triangle BAC
BA=BC=AC,(Given)
=> < BAC=<ABC= < ACB =60°………(1)
Similarly in ∆DAC ,
DA=DC=AC
=><DAC=<ACD=<ADC=60°……….(2)
From (1) and (2)
<A=<BAC+< DAC=60°+60°=120°
and
< B= < ABC = 60°.
and
<C=<ACB+<ACD=60°+60°=120°
and
< D =<ADC=60°
Therefore, <A = 120° , <B = 60° ,<C = 120° ,<D = 60°
Answer:-
The measures of the all angles in the rhombus are 120° , 60° ,120° and 60°
Used formulae:-
all sides in a rhombus are equal
7r−
s
15
7, r, minus, start fraction, 15, divided by, s, end fraction when r=3r=3r, equals, 3 and s=5s=5s, equals, 5.
Answer:
when r=3 and s=5.
Step-by-step explanation:
Given : Expression when r=3 and s=5
Substituting, r=3 and s=5
Therefore, when r=3 and s=5.
-5pq x - 3p x 6q find the product
[tex]\\ \sf\longmapsto -5pq(3p)(6q)[/tex]
[tex]\\ \sf\longmapsto -5pq(18pq[/tex]
[tex]\\ \sf\longmapsto -90(pq)^2[/tex]
[tex]\\ \sf\longmapsto -90p^2q^2[/tex]
Let f(t) represent the temperature of a turkey baking in an oven as a function of time [] in the oven (in minutes). This means time is the independent variable and temperature of the turkey t) is the dependent variable. The turkey was in the oven for 360 minutes and then removed. Note that when something is baked in an over, the temperature of the oven stays constant
1. Describe the rate of change pattern over each interval of the graph listed below.
a) 0
b) 345
c) t > 360
2. Explain what is happening in each interval of your graph in terms of the turkey and its temperature, using complete sentences
3. Let's say that the turkey sat on the counter for an additional hour (beyond the 390 minutes) and its temperature cooled to 80 degrees. Write that value in function notation
Answer:
Since x (independent) is time and y (dependent) is temperature;
F(0) =50 means; at the beginning which is 0 minutes, the temperature is 50F
f(120)>f(60) means the temperature after 120 min is bigger than the temperate after 60 min.
f(360) = f(345) means the temperature after 360 min and 345 min are the same
f(390) < f(360) means the temperate after 390 min is less than the temperature after 360 min
Step-by-step explanation:
Answer:
Since x (independent) is time and y (dependent) is temperature;
F(0) =50 means; at the beginning which is 0 minutes, the temperature is 50F
f(120)>f(60) means the temperature after 120 min is bigger than the temperate after 60 min.
f(360) = f(345) means the temperature after 360 min and 345 min are the same
f(390) < f(360) means the temperate after 390 min is less than the temperature after 360 min
Step-by-step explanation:
Write 7 Times Square root 7 as a single power of 7
Answer:
7 to the power of 3/2
Step-by-step explanation:
7 is the same as 7¹ and [tex]\sqrt{7}[/tex] is the same as 7 to the power of 1/2
since the bases are both 7, we keep the base and add the exponents when we multiply with exponents, giving us:
7 to the power of 3/2
The length of a bridge is 150 m. The length of each of Robert's paces is 65 cm.
What is the minimum number of roll paces that it would take Robert to walk the full length of
the bridge
paces
A(-7,-5), B(-2,-5), C(-2,-1), D(-7,-1), and find the area of figure ABCD.
Check the picture below.
Notice it's simply a 5x4 rectangle, and surely you know how to get its area.
What’s mean number basic statistics btw
Answer:
To find the mean, add up the values in the data set and then divide by the number of values that you added. To find the median, list the values of the data set in numerical order and identify which value appears in the middle of the list. To find the mode, identify which value in the data set occurs most often.
Find the midpoint M of the line segment joining the points S = (7, -2) and T = (-3, -8).
Answer:
(2, -5)
Step-by-step explanation:
Using the midpoint formula - M= [tex](\frac{x_{1} +x_{2} }{2}, \frac{y_{1}+y_{2} }{2} )[/tex], we get that the x value of the point is 2 and the y-value of the midpoint is -5, so the midpoint of segment ST is (2, -5)
1/(cot^2 (x)) - 1/(cos^2 (x))
Step-by-step explanation:
1 is your answer its law of trig identises
[tex]\\ \sf\longmapsto \dfrac{1}{cot^2x}-\dfrac{1}{cos^2x}[/tex]
[tex]\\ \sf\longmapsto tan^2x-sec^2x[/tex]
[tex]\\ \sf\longmapsto 1[/tex]
Application of geometric and arithmetic sequence and series in real life. Please show your solution.
Answer:
the amount on your savings account ;
the amount of money in your piggy bank if you deposit the same amount each week (a bank account with regular deposits leads you to arithmetico-geometric sequences) ;
the size of a population in exponential growth, e.g. bacteria in a Petri dish (or in your leftovers if you find Petri dishes not "every day life" enough) ;
the intensity of radioactivity after n years of a given radioactive material (with application to determining the age of mommies!).
Pam draws three scalene triangles. In each figure, she measures each angle, as shown.
Which conjecture is reasonable for Pam to make?
a. In a scalene triangle, none of the angles are congruent.
b. In a scalene triangle, none of the angles are right angles.
c. In a scalene triangle, one of the angles is obtuse.
d. In a scalene triangle, all of the angles are acute.
Answer:
the answer is c.
Step-by-step explanation:
there's no explanation
(Apologies since this super late; I hope future students will find this helpful)
Answer:
In a scalene triangle, none of the angles are congruent.
Step-by-step explanation:
As shown, the angles in each scalene triangle all have different measurements. Hence, you can conclude that none of the angles in a scalene triangle are congruent.
You can also see the image below if you'd like to confirm this :)
i’m confused on this problem , and its due tomorrow for
Answer:
Each slice of pizza is 4 dollars
Step-by-step explanation:
you need to multiply 2.50$ by 3 to get the total of the drinks and subtract it by the overall total of 31.50 to get the total cost of the pizza or 24.00$. Then you divide 24.00$ by 6 since there are 3 people and they each get 2 slices of pizza giving you 4.00$ per slice of pizza.
The equation y = 0.29x + 58 models the cost y of renting a car if the car is driven x
miles.
According to the model, what is the best estimate of the cost for renting a car if you
plan to drive 619 miles? Please round your answer to the nearest dollar.
Include answer and units
Answer:
y = $238
Step-by-step explanation:
Given the equation, y = 0.29x + 58
Where:
y = total cost of renting a car
x = number of miles driven
58 = initial cost or amount.
To find the estimated cost for renting a car if you plan on driving for 619 miles, substitute 619 as the value of x into the equation:
y = 0.29(619) + 58
y = 179.51 + 58
y = 237.51 or 238
Therefore, the estimated total cost for driving 619 miles is $238.
Please mark my answers as the Brainliest if you find this helpful :)
(2/3 + 3/4) × (3/6 + 4/9)
Answer:
289/216
Step-by-step explanation:
add the parentheses first
(2/3+3/4)×(3/6+4/9)=
17/12×17/18
then multiply
17/12×17/18=
286/216
2/3 + 3/4
= 2 × 4/3 × 4 + 3 × 3/4 × 3
= 8/12 + 9/12
= 8 + 9/12
= 17/12
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(3, 4) = 12. In practice, it is enough to find the common denominator by multiplying the denominators: 3 × 4 = 12. In the next intermediate step, the fraction result cannot be further simplified by canceling.
Add: 3/6 + 4/9
= 3 × 3/6 × 3 + 4 × 2/9 × 2
= 9/18 + 8/18
= 9 + 8/18
= 17/18
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(6, 9) = 18. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 6 × 9 = 54. In the next intermediate step, the fraction result cannot be further simplified by canceling.
2 = 17/12 × 17/18
= 17 × 17/12 × 18
= 289/216
Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(289, 216) = 1. In the next intermediate step, the fraction result cannot be further simplified by canceling.
[tex] \frac{289}{216} in \: mixed \: fraction \: is \: 1\frac{73}{216} [/tex]
Two large numbers of the Fibonacci sequence are F51 = 20,365,011,074 and F52 = 32,951,280,099.What is the approximate value of the quotient
Answer:
[tex]\frac{1+\sqrt{5} }{2}[/tex] or 1.62
Step-by-step explanation:
A cool thing about the fibonacci sequence is that if you divide two consecutive numbers, the larger they are, they approach the golden ratio. This means the approximate value would be the golden ratio which is [tex]\frac{1+\sqrt{5} }{2}[/tex].
can someone explain scientific notation please it’s so confusing.
Let's say we had the massive number
6,230,000,000
which we can shorten it to saying "6.23 billion" and that allows us to drop all the extra zeros at the end.
When writing it in scientific notation, we would say [tex]6.23 \times 10^9[/tex] and the [tex]\times 10^9[/tex] portion indicates "times ten to the ninth power". This is the place holder for "billion". It means we'll move the decimal point 9 spots to the right to go from 6.23 back to the original massive number shown above.
In short, scientific notation allows us to represent really large numbers in a compact way. It's useful to be able to communicate to a friend about whatever number you're referring to. One application is trying to find vast distances in outer space which tend to be very larger numbers. There are many other applications for scientific notation.
How many strips of ribbon, each three and a half centimeters long, can I cut from a roll of ribbon that is fifty two and a half centimeters long?
three consecutive numberes sum to 285. write an equation and solve for the first number, then list the other two numbers.
someone please help
Answer:
the answers are 94, 95, 96
HSV ~ RPU. If HS = 19, find RP
if RP can be determined find RP?
Step-by-step explanation:
it can not be determined