Answers
Answer:
Step-by-step explanation:
Because of the isosceles triangle theorem, in the triangle on the left, the topo angle and the base angle on the right are congruent. That base angle is congruent to the upper left angle in the triangle on the right (the one that's upside down) because they are vertical and vertical angles are congruent. Tis upside down triangle also is isosceles, so that angle that is vertical is congruent to the angle that is vertical to x. So let's find out what that is because the angle that is vertical to x is equal to x (and 2 out of the 3 angles in both traingles!) Go back to the triangle on the left. The exterior angle there is 120, and that makes it supplementary to the right next to it on the insde of the triangle. 180 - 120 = 60. And by the Triangle Angle-Sum Theorem, knowing that the other 2 angles are congruent, 180 - 60 = 120 and 120 divided in half makes those other 2 angles 60 as well. That means that the angle vertical to x is 60 and x = 60 as well. Both of these triangles are equilateral and equiangular.
Related Questions
how to work out the surface areas of cuboid? height=2cm length=10cm width=7cm Please do it step by step
Answers
Answer:
208 you find the area of each face then add them up
Step-by-step explanation:
Can someone please be generous & help
Answers
slope intercept y= 10x-82
point slope y + 2 = 10 (x − 8)
what is it the difference between the integers -11 and -3
Answers
Explanation:
(To calculate the difference, subtract the smaller number from the larger number)
Difference = - 3 - (-11) = - 3 + 11 = 8
match each problem to the inequality that models it! One choice will be used twice.
Answers
pls help me solve pls show how you got the answer
Answers
Answer:
12.8
Step-by-step explanation:
Find the difference between 1.9 and 1.5 (Divide them)
You get 1.9 ÷ 1.5 = 1.26
Then multiply the answer with 8,
8 x 1.26 = 12.8 (Nearest tenth)
Have a great day :)
) Factorise
a2 + ab + a
Answer
Answers
Answer:
Step-by-step explanation:
a^2+ab+a
a(a+b+1)
Answer:
a(a+b+1). was this helpful
A wildlife refuge has 200 birds when it is first established. It is so
successful that the number of birds increases by 25% every year.
Write a function to model the situation.
Find the number of birds present after 7 years.
Answers
Answer:
550 birds
Step-by-step explanation:
25% × 7 = 175%
100% + 175% = 275%
[tex]\frac{y}{200} :\frac{275}{100}[/tex]
y × 100 = 275 × 200
100y = 55000
100y ÷ 100 = 55000 ÷ 100
y = 550
Answer:
200*1.25ˣ
954
Step-by-step explanation:
let x= years
200*1.25ˣ = birds
plug in 7 for x
200*1.25⁷=953.6743164
round to 954
what is 6t + 3t + 4 simplified?
Answers
Answer:
9t + 4
Step-by-step explanation:
6t + 3t + 4
= 9t +4
Find the interquartile range of the data.
84,75,90,87,99,91,85,88,76,92,94
Answers
IQR is shorthand for interquartile range
=========================================================
Explanation:
The original list is {84,75,90,87,99,91,85,88,76,92,94}
It sorts to {75,76,84,85,87,88,90,91,92,94,99}
Pick out the middle most value, which is 88 in slot 6. A quick way to get here is to see that there are n = 11 values in this set. So n/2 = 11/2 = 5.5 which rounds to 6, and that tells us the slot number where the median is held. If n is an even number, then you'll need to use the midpoint formula for the two middle-most items.
After we determine the median is 88, we split the sorted data set as follows:
L = {75,76,84,85,87}
U = {90,91,92,94,99}
Everything in set L is below the median. L for lower.
Everything in set U is above the median. U for upper.
Sets L and U have 5 items each. Note that 5+1+5 = 11 = n.
-------------
The median of set L is 84, so Q1 = 84
The median of set U is 92, so Q3 = 92
Q1 and Q3 are the first and third quartiles respectively. Subtracting them gets us the IQR (interquartile range)
IQR = Q3 - Q1
IQR = 92 - 84
IQR = 8
The IQR helps give us a sense how spread out the data set is. It's similar to the range, which is found by range = max - min. The larger the (interquartile)range, the more spread out the data set will be.
pls answer asap 7 - 3 r = r - 4 ( 2 + r)
Answers
Answer:
no real answer
Step-by-step explanation:
distribute the -4 and combine all of the like terms on the left side = r-8-4r, then -8-3r
then we have 7-3r=-8-3r
from here, we can already tell that there's no real answer. this is because the two -3r will cancel, leaving no variable.
since 7 doesn't equal -8, there is no answer.
if, for example, the value on both sides of the equal sign were the same after the variable was eliminated, then your answer would be all real numbers
UHH HELP ME PLS AND I WILL MARK BRAINLIEST
Answers
Answer:
First option: 3619.1 cubic centimetres
Step-by-step explanation:
Use this formula for figure out the volume of a cone:
[tex]V=\pi r^2\frac{h}{3}[/tex]
---------------------------------------------------------------------------------------------------------------
So:
π × 144 × 8 ≈ 3619.1
---------------------------------------------------------------------------------------------------------------
Have a good day :)
Suppose a toothpaste company wants to calculate how many times teens brush their teeth each week
They decide to conduct a survey of a random sample of 1000 teens aged 13–18 from across the U.S.
What is the sample size?
Answers
Answer:
1000 teens
Step-by-step explanation:
They decide to conduct a survey of a random sample of 1000 teens aged 13–18 from across the U.S.
Which type of graph would be best for showing the average yearly bonus amounts for employees in different departments of an IT company?
A. a bar graph
B. a circle graph
C. a histogram
D. a line graph
Answers
Answer:
I believe that a bar graph will help with that, because you can narrow the answers down to a bar graph and a line graph but a line graph will only show an increase and a decrease not an average, and a bar graph shows all three.
Step-by-step explanation:
I hope this helped let me know!
which number line shows the solutions to
Answers
[tex] \frac{1}{2} x - 2 > 0[/tex]
[tex](2)( \frac{1}{2} x - 2) > (0)(2)[/tex]
[tex]x - 4 > 0[/tex]
[tex]x - 4 + 4 > 0 + 4[/tex]
[tex]x > 4[/tex]
Camilla's employer pays 90% of the total cost of her family's health insurance
plan, while Camilla pays the rest. If the total cost of the plan increases from
$850 per month to $950 per month, how much more will Camilla have to pay
each month?
A. $90
O B. $10
O C. $100
D. $9
Answers
Answer:
B. $10
Step-by-step explanation:
Camila's employer pays 90% of the total cost of her family's health insurance
plan
Therefore, Camilla pays only 10%
If the total cost of the plan increases from $850 per month to $950 per month, how much more will Camilla have to pay
each month?
Amount of health insurance Camilla pays at $850 per month = 10% of $850
= 0.1 * $850
= $85
Amount of health insurance Camilla pays at $950 per month = 10% of $950
= 0.1 * $950
= $95
Amount Camilla pays more = $95 - $85
= $10
B. $10
A square that has a side measurement of 7 inches has an area of: *
14 inches
49 inches
49 square inches
7 square inches
Answers
Answer:
49 square inches
Step-by-step explanation:
area of a square = l * l
a = 7 * 7
a = 49 square inches
Can anyone help me with this it’s due at 11:59 plzz
Answers
Answer:
57) [tex]\sqrt[4]{1}[/tex] = 1
58) [tex]\sqrt[5]{1}[/tex] = 1
59) [tex]\sqrt[4]{16}[/tex] = 2
60) [tex]\sqrt[4]{81}[/tex] = 3
61) [tex]-\sqrt[4]{16}[/tex] = -2
62) [tex]-\sqrt[4]{81}[/tex] = -3
63) [tex]\sqrt[4]{-16}[/tex] = [tex]2\sqrt[4]{-1}[/tex]
64) [tex]\sqrt[4]{-81}[/tex] = [tex]3\sqrt[4]{-1}[/tex]
65) [tex]\sqrt[5]{-1}[/tex] = -1
66) [tex]\sqrt[7]{-1}[/tex] = -1
67) [tex]\sqrt[6]{-1}[/tex] = [tex]i[/tex]
68) [tex]\sqrt[8]{-1} = \sqrt[8]{-1}[/tex]
69) [tex]-\sqrt[4]{256}[/tex] = -4
70) [tex]-\sqrt[4]{10,000}[/tex] = -10
71) [tex]\sqrt[6]{64}[/tex] = 2
72) [tex]\sqrt[5]{32}[/tex] = 2
73) [tex]-\sqrt[5]{32}[/tex] = -2
74) [tex]-\sqrt[6]{64}[/tex] = -2
Cooks are needed to prepare for a large party. Each cook can bake either 5 large cakes or 14 small cakes per hour. The kitchen is available for 2 hours and 24 large cakes and 130 small cakes can be cake. How many cooks are required to bake the required number of cakes during the time the kitchen is available
Answers
Answer:
8
Step-by-step explanation:
In 2 hours
1 cook makes 10 large cakes
24/10 = 2.4
You need 3 cooks to make the large cakes.
In 2 hours
1 cook makes 28 small cakes
130/28 = 4.64
You need 5 cooks to make the small cakes.
3 + 5 = 8
Answer: 8
What is the slope and y-intercept of y=-5/4x+4 and the slope and y-intercept of y=3/2x-7
Answers
Answer:
Step-by-step explanation:
The slope of y = -5/4x + 4 is -5/4. The y-intercept is 4.
The slope of y=3/2x-7 is 3/2. The y-intercept is -7.
*URGENTTT*
Which of the following best describes a basic postulates of EUCLIDEAN geometry?
Answers
Answer:
D option
Step-by-step explanation:
Hope this helps... pls vote as brainliest
What value, a, needs to be added to create a perfect-square quadratic?
x² - 6x + a
Answers
Answer: 9
Step-by-step explanation:
(x-3)^2=x^2-6x+9
(x-a)^2=x^2-2ax+a^2)
Simplify the expression: 16x - (3x + 9) + 17
Answers
Step-by-step explanation:
16x -(3x + 9) + 17
16x -3x -9 +17
13x + 8
Help me please I am going to die with school rn
Answers
Answer:
416 ft
Step-by-step explanation:
We will start with the easiest shape.
10 x 4 x 4 = 160
We will put that to the side and continue.
we see that 20 feet is the whole height of the object but since there is the height of 4 feet on the bottom shape, we will take 4 from 20 to give us 16 feet for the top shape.
16 x 4 x 4 = 256
Now, we add the totals.
256 + 160 = 416
Answer:
416 ft
Step-by-step explanation:
We will start with the easiest shape.
10 x 4 x 4 = 160
We will put that to the side and continue.
we see that 20 feet is the whole height of the object but since there is the height of 4 feet on the bottom shape, we will take 4 from 20 to give us 16 feet for the top shape.
16 x 4 x 4 = 256
Now, we add the totals.
256 + 160 = 416
Which algebraic expression is a polynomial?
4x2 – 3x +2/x
-6x² + x² – √5
8x2 + x
-2x^4+3/2x
Answers
Answer:
arre 4×÷3+5 respuestonguis crack pvp manda id
The expression 8x² + x is a polynomial.
Option C is the correct answer.
What is a polynomial?Polynomial is an equation written with terms of the form kx^n.
where k and n are positive integers.
There are quadratic polynomials and cubic polynomials.
Example:
2x³ + 4x² + 4x + 9 is a cubic polynomial.
4x² + 7x + 8 is a quadratic polynomial.
We have,
A polynomial is an algebraic expression with one or more terms, where each term has a non-negative integer exponent on the variable.
Among the given options,
Only the expression 8x² + x is a polynomial because it has two terms with non-negative integer exponents on the variable x.
The other options are not polynomials because:
"4x² – 3x +2/x" is not a polynomial because it has a term with a negative exponent on the variable.
"-6x² + x² – √5" is not a polynomial because it has a term with a non-integer exponent on the variable.
"-2x^4+3/2x" is not a polynomial because it has a term with a negative exponent on the variable.
Thus,
The expression 8x² + x is a polynomial.
Learn more about polynomials here:
https://brainly.com/question/2284746
#SPJ7
HELPPPPPPPW PLSSSSBRBEHD
Answers
Answer:
b. 10
Step-by-step explanation:
3 (x 2) = 6
5 (x 2) = 10
Answer:
Helen scores 10 points.
Step-by-step explanation:
We are given that for every 3 points Glenn scores, Helen scores 5 points. Glenn now scores 6 points and Helen's score is unknown. We can write this as a ratio.
Glenn - 3 : 5 - Helen
Glenn - 6 : ? - Helen
We can divide 6 by 3 to get the rate of change, which is 2. Then multiply 5 and 2 and we get 10! Helen scores 10 points for every 6 points Glenn scores. I hope this helps! :D
PLEASE HELP ILL GIVE BRAINLIEST
Answers
Answer:
x=11 im not sure but i think
What’s the distance between the points that’s given on the graph?
Answers
The distance between two points:
[tex] \large \boxed{ \sqrt{(x_2 - x_1)^{2} + {(y_2 - y_1)}^{2} } }[/tex]
From the graph, the given points are (-3,1) and (5,-4). Substitute the points in as we get:
[tex] \large{d = \sqrt{ {( - 3 - 5)}^{2} + {(1 + 4)}^{2} } } \\ \large{d = \sqrt{ { (- 8)}^{2} + {5}^{2} } } \\ \large{d = \sqrt{64 + 25} \longrightarrow \sqrt{89} } [/tex]
Hence the distance between two points is √89.
Answer
√89If Hannah paid a 7% shipping charge for a baseball that equals $9.45,how much was the baseball?
Answers
Answer:
The baseball was $8.79 without the shipping charge
Step-by-step explanation:
7% = 0.07
$9.45 * 0.07 = $0.6615
$9.45 - $%0.6615 = $8.7885
Hope this helps
Answer :
$8.7885 ($8.79) without shipping charge
Step by step Explanation :
I agree with the previous answer, you would find 7% of 9.45 first.
$9.45 * 0.07 = $0.6615
Then you would subtract because you want to find the cost of the baseball alone.
$9.45 - $0.6615 = $8.7885
Peter works at a camera store. He is paid an hourly rate, plus 2 points
16% commission on everything he sells. One week, he was paid $515 for
working 20 hours and selling $1,500 worth of camera equipment. What is
his hourly rate? *
A) $12.00 per hour
B) $13.75 per hour
C) $21.63 per hour
D) $25.75 per hour
PLSS HELP
Answers
Answer:
fdd
yfddd
Step-by-step explanation:
dded fdd fdd fdd fddc rttyj hreef ggg
help me out y’all IMAOOO
Answers
Answer:
no
Step-by-step explanation:
Answer:
a.
Step-by-step explanation: