Answer:
224
Step-by-step explanation:
The first term here is 2; the common difference, d, is 3. Thus, the proper arithmetic sequence formula is a(n) = a(1) + 3(n - 1), or, specifically,
a(n) = 2 + 3(n - 1)
If n = 75, a(75) = 2 + 3(74) = 224
The three inside angles (A,B and C) of a right-angled triangle are in the ratio 7:18:11. Th smallest angle is 35. Work out angles A, B and C
Answer:
<A = 35degrees
<B =90degrees
<C = 55degrees
Step-by-step explanation:
Given the ratios of a triangle as 7:18:11
Total ratio = 7+18+11
Total ratio = 36
Since the smallest angle is 35degrees, hence <A = 35degrees
Get angle B;
<B = 18/36 * 180 (sum of angle in a triangle is 180degrees)
<B = 1/2 * 180
<B = 90degrees
Get angle C;
<C = 11/36 * 180
<C = 11 * 5
<C = 55degrees
Hence the value of A, B and C are 35, 90 and 55 degrees repectively
Can someone help plssss
Answer:
1.) 0.357142857
2.) 2.2
3.) 1.35
Step-by-step explanation:
What is the equation, in standard form, of a circle with center (−5, −9) and radius 7?
Enter your answer by filling in the boxes.
x__^2+y__^2=___
Answer:
Solution given:
Centre(h,k)=(-5,-9)
radius (r)=7
we have
Equation of a circle is;
(x-h)²+(y-k)²=r²
Substituting value;
(x+5)²+(y+9)²=7²
(x+5)²+(y-9)²=49 is a required equation of a circle.
Standard equation
(x-h)²+(y-k)²=r²(x+5)²+(y+9)²=7²(x+5)²+(y+9)²=49Classify this triangle by its sides.
Answer:
Scalene
Step-by-step explanation:
All sides are not the same so it is considered scalene.
Classifications:
Scalene = no sides and angles are the same to others
Equilateral = All sides and angles are congruent
Isosceles = 2 sides and 2 angles are congruent.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
Scalene
Step-by-step explanation:
Isosceles=two sides are equal
Scalene=all sides are different
Equilateral=all three sides are equal
The intensity I of light produced by a light source varies inversely as the square of the distance d from the source. If the intensity of light produced 3 metres from a light source is 75 Cd, find the intensity of light produced 5 metres from the same source
27 cd
Step-by-step explanation:
(75 cd)(3m)^2 = (x)(5m)^2
x = (75 cd)(9 m^2)/(25 m^2)
= 27 cd
A hat contains cards with different colors Annabelle randomly selects a card from the hat and Returns the card to the Hat after noting the color and randomly selecting a car 300 times she has picked purple guard 70 times based on her results what is it estimated probability that Annabelle selects a purple
Answer:
[tex]Pr = 0.233[/tex]
Step-by-step explanation:
Given
[tex]n = 300[/tex] --- total frequency
[tex]Purple = 70[/tex]
Required
The probability of purple
This is calculated as:
[tex]Pr = \frac{Purple}{n}[/tex]
So, we have:
[tex]Pr = \frac{70}{300}[/tex]
[tex]Pr = 0.233[/tex]
PLEASE HELP ASAP I WILL MARK BRANLIST!!!!!!
Of 10 test scores, six are less than or equal to 82 What is the percentile rank of a test score of 82?
The percentile rank of 82 is…
Answer:
60% of the test scores are less than or equal to 82
Step-by-step explanation:
hey! please help i’ll give brainliest:)
2) The ratio of an exterior and an interior angle of regular polygon at a vertex is 2 : 7, the number of sides of the regular polygon is __________ *
Answer:
Ext=2x
Int=7x
Int+ext=180
2x+7x=180
9x=180
x=20
Ext=2×20=40
No of sides =360/40
=9 sides.
I hope this helped you
Step-by-step explanation:
Answer: the sides have to be the same length so an equilateral triangle a square a rhombus get what i am saying
BRAInly whats the difference between isolation and separation?
For the las ttime yeahhh, yeahhh,
Im sitting here reminiscing now why we kis.sing b.aby, I gave you top of the line, I know you miss it baby.
I got alot on my mind why don't you listen ba.by?
If you can turn back the time you would've listened ba.by.
You would've listened to the words I swear, yo s.h/i/t would be out in the curve I s.w.ear, I s/w.ear to God you had some nerve I s/we.ar, but that's for listening to them birds out there,I put up with your bu/l/ls.hi.t for the last time, who would of thought that we were f/u/c/ki.ng for the last time (it was the last timmmeee) it was the last time, who would of thought that we were fu/c/k/ing was the last time
I got this s/,h,it yeah I got problems with com/mi/ment ba.b/y,
I apo/logized to you I should have listened ba.by, I wasn't in lo.ve
With them h/o,e.s, I was just pi/m/pi/ng b.a/by, I knew my part knew my role I wasn't slipping ba.by, I regreated you know I do nobody perfect,Used to dress you in jimmy choo because you worth it
You ain't here when I needed you, what was your purpose?
Say you love me, say you trust me, now you cu.rsin'
Half the time I'm at the studio writing verses
is that separation is the act of separating or the condition of being separated while isolation is (chiefly|uncountable) the state of being isolated, detached, or separated.
also, whats up with the singing?
I need help with geometry
Statement 1 and statement 3 contradict
======================================================
Explanation:
We'll start with statement 1 and try to build to statement 3, and you'll find that a contradiction happens.
If angle 1 and angle 2 are supplementary, then that must mean [tex]m \angle 1 + m \angle 2 = 180[/tex] because the angles can be combined to form a straight angle.
Add the measure of angle 3 to both sides
[tex]m \angle 1 + m \angle 2 = 180\\\\m \angle 1 + m \angle 2+m\angle 3 = 180+m\angle 3[/tex]
The left side matches with the left side in statement 3, but the right side is a bit off. That [tex]m\angle 3[/tex] term needs to be zero, so that the right side boils down to simply 180. However, statement 3 specifically mentions that angle 3 is nonzero. So angle 3 is some positive value.
That's why choice C is the answer.
------------------
Here's an example:
Let's say angles 1 and 2 are 50 and 130 degrees. The order doesn't really matter, but I'll make angle 1 to be the smaller angle.
This means,
[tex]m \angle 1 + m \angle 2 = 180\\\\50 + 130 = 180\\\\[/tex]
So we've made statement 1 to be true. The angles 50 and 130 are indeed supplementary.
Now let's add some nonzero value to both sides. This will represent the measure of angle 3. If we add say 10 degrees to both sides, then,
[tex]50 + 130 = 180\\\\50 + 130+10 = 180+10\\\\50 + 130+10 = 190\\\\m\angle 1 + m\angle 2 + m\angle 3 = 190\\\\[/tex]
we don't get 180 like we want in the equation of statement 3. This is where the contradiction happens, more or less. One right side is 180, the other right side is 190. The 190 will change if you use some other value for angle 3, but hopefully you can see that it's impossible to add up angles 1 through 3 to get 180. It's only possible if angle 3 were zero degrees.
We can think of it like angles 1 and 2 hog up all the oxygen, and use up 180 points of it, leaving no air for angle 3 to breathe so that's why angle 3 must be 0. Furthermore, it means that a triangle is not possible if exactly two angles are supplementary.
----------------------
Extra info:
Statements 1 and 2 can coexist just fine without any contradictions happening. If angle 1 is 110 degrees, then that makes angle 2 to be 70 degrees (110+70 = 180). That rules out choice A.Statements 2 and 3 are just fine as well, for similar reasoning as above. We can plug in 110 for angle 1, then subtract that from 180 to get 180-110 = 70. Then from here, just ensure that angles 2 and 3 add to 70. So there are infinitely many ways to do this. Choice B can be ruled out.Choice D is ruled out because we found choice C to be the answer, ie the contradicting two statements.Answer:
C) l and lll
Step-by-step explanation:
m∠1+∠2=180
m∠1+m∠2+m∠3=180
180+m∠3=180
m∠3=0 but m∠3=∦0
-----------------------------------
hope it helps...
have a great day!!
Find the solution(s) for x in the equation below. X^2+7x=8 A.X=-1;x=8 B.X=1;x=8 C.X=1;x= -8 D. X=-1;x=-8
Answer:
x = -8 and x =1
Step-by-step explanation:
Given the equation
X^2+7x=8
X^2+7x-8 = 0
Factorize
x^2 - x +8x - 8 = 0
x(x-1)+8(x-1) = 0
(x+8)(x-1) = 0
x+8 = 0 and x-1 = 0
x = 0-8 and x = 0+1
x = -8 and 1
Hence the required solution is x = -8 and x =1
I need answer ASAP
No links please
Answer:
The answer is B
Step-by-step explanation:
Since we already know that angle A and D are congruent, if angles C and F were also congruent, we can prove the triangles are similar through AA, meaning the triangles have 2 sets of corresponding congruent angles. The other option D doesn’t work because if we were going off on using the sides as a way to prove similarly, than all 3 sides of one triangle would need to be proportional and corresponding to the other 3 of the other triangle (which is not given, so that info isn’t enough, option D only gives us 2 sides of each triangle)
Hope this helped ~~
Find the probability of randomly selecting a blue, then a red marble from a bag of 5 red, 8 green, and 3 blue marbles when (a) you replace the first marble before drawing the second, and (b) you do not replace the first marble. Then, compare the probabilities. Round all answers to four decimal places, if necessary. a. The probability of selecting a blue, then a red marble when you replace the first marble before drawing the second is about . b. The probability of selecting a blue, then a red marble when you do not replace the first marble is . You are about times more likely to pick a blue, then a red when you do not replace the first marble.
Answer:
Below.
Step-by-step explanation:
Total marbles = 16
(a) Replacing the first marble:
Probability = 5/16 * 3/16
= 15/256
Not replacing the first marble:
Probability = 5/16 * 3/15
= 5/16 * 1/5
= 5/80
= 1/16.
Comparing the 2 values:
Probability of Not replacement / Replacement = 1/16 / 15/256
= 256 / 15* 16
= 16/15
Thus you are 16/15 = 1.0667 times more likely to pick a blue then a red when you do not replace the first marble.
(07.05)
What is the value of n in the equation 3n + 2(n + 2) = 9n + 12? (4 points)
a. −4
b. −2
c. 2
d. 4
Can someone please give me a step by step I am really struggling <3
Answer: n = -2
Step-by-step explanation:
3n +2(n + 2) = 9n + 12
(simplify 2(n + 2)) =
3n + 2n + 4 = 9n + 12
(subtract 9n from both sides)
3n + 2n - 9n + 4 = 12
-4n + 4 = 12
(subtract 4 from both sides)
-4n = 8
(divide -4 from both sides)
n = -2
Please help This is geometry
Answer:
(x - 2)² + (y - 6)² = 4
Step-by-step explanation:
Equation of a circle is given by,
(x - h)² + (y - k)² = r²
Here, (h, k) is the center of the circle
r = Radius of the circle,
From the graph attached,
Center of the circle → (2, 6)
Radius of the circle = 2 units
Therefore, equation of the circle will be,
(x - 2)² + (y - 6)² = 2²
(x - 2)² + (y - 6)² = 4
please help!!!!!!!!
3x2 + x - 4 = 0
SELECT ALL THAT APPLY.
(x - 1)(3x + 4) = 0
(3x +2)(x - 6) = 0
(3x + 4)(x - 1) = 0
(x + 1)(3x - 4) = 0
(3x - 3)(3x - 4) = 0
(3x - 4)(x + 1) = 0
all of the apply my math teacher always did that and all of them aways applied
Answer:
(3x + 4)(x-1)=0
Step-by-step explanation:
It's a quadratic equation.
now you need to find two numbers such that when you multiply then you get -12 and when you add them you get +1
[tex]3x {}^{2} + x - 4 \\ 3x {}^{2} + 4x - 3x - 4 \\ x(3x + 4) - 1(3x + 4) \\ (3x + 4)(x - 1)[/tex]
In the graph below, line k, y = -x makes a 45° angle with the x- and y-axes.
Complete the following:
RyRx : (2, 5)
(-5, -2)
(-2, -5)
(2, 5)
Answer:
(-2, -5).
Step-by-step explanation:
2--------> -2
6 -------> -5.
Answer:
(-2, -5)
Step-by-step explanation:
Write the verbal sentence as a equation. 3 times the sum of a number and 2 is 12.
Answer:
3(x+2)=12
Step-by-step explanation:
let the number be x
the sum=x+2
the answer
3(x+2)=12
heyy! i’ll give brainliest please help
Answer:
I think it's either B or C
hope this helps
have a good day :)
Step-by-step explanation:
Pick which one you think best
If 100% of a number is 200, what is 90% of the number?
I'm pretty sure the answer is 180
><
Answer:
180
Step-by-step explanation:
100:200 is 90:x
x is 180
Jolinda and her parents are discussing how to pay for her college education. The cost of tuition at the college Jolinda wants to attend is $7250 a year. Jolinda's parents can pay 70% of the tuition and Jolinda will have to pay the rest. She has one year to save enough money for the first year of college. What is the minimum amount of money she should save every month to reach this goal?
Answer:
$181.25
Step-by-step explanation:
Given data
Amount= $7250
The amount the parent will pay
=70/100*7250
=0.7*7250
= $5075
Hence the balance left for her to pay is
=7250 -5075
=$2175
Hence the least monthly amount is
=2175/12
=$181.25
Based on the dotplot of the simulation results and the
random sample from last month's new driver's licenses,
which conclusion can be drawn?
The actual proportion of teenagers who do not smile
is only 8%.
It is clear that exactly 6 out of 10 teenagers will smile
in their driver's license photo.
If we continued to take more samples of 10
teenagers, the center of the distribution would shift to
6.
There is about an 8% chance that 4 or fewer
teenagers smiled for their photo. This is not unusual
and is not convincing evidence that the true probability
is less than 60%.
Answer:
The conclusion to be drawn is:
The actual proportion of teenagers who do not smile is only 8%. It is clear that exactly 6 out of 10 teenagers will smile in their driver's license photo.
If we continued to take more samples of 10 teenagers, the center of the distribution would shift to
Step-by-step explanation:
help please! i really need help, i cant figure it out on edginuity
Answer:
X=-6
Step-by-step explanation:
Sorry don't have explanation
Answer:
[tex]x = - 6[/tex]Step-by-step explanation:
[tex] \sqrt[3]{5x - 4} = \sqrt[3]{7 + 8} [/tex]
[tex]5x - 4 = 7x + 8[/tex]
[tex]5x - 4 - 7x = 8[/tex]
[tex] - 2x - 4 = 8[/tex]
[tex] - 2x + = 8 + 4[/tex]
[tex] - 2x = 12[/tex]
[tex]x = \frac{12}{ - 2} [/tex][tex]x = - 6[/tex]
Hope it is helpful....Hello! If you can help me with this thank you
please help me I'm stup*d
who doesn't know Latvian here is translation: Distribution in square trinomial multipliers!
Write separate characters and numbers. Write the smallest multiplier in the first brackets!
Answer:
:)
Step-by-step explanation:
There’s an answer already
Find ( x+5 ) ( x+2 )
Answer:
(x+5)(x+2)
x(x+2)+5(x+2)
x*x+x*2+5*x+5*2
x^2+2x+5x+10
x^2+7x+10
Step-by-step explanation:
Find an explicit formula for the arithmetic sequence 170,85,0,-85,...170,85,0,−85,...170, comma, 85, comma, 0, comma, minus, 85, comma, point, point, point.
Answer: d(n)=170-85(n-1)
Step-by-step explanation: Khan Academy
A ladder is leaning against the side of a 10m house. If the base of the
ladder is 3m away from the house, how tall is the ladder? Draw a
diagram and show all work.
Answer:
The ladder is 7 Meters up the wall.
fill in the missing numbers to complete the pattern ___, 2.6, 3.1, 3.6,___, 4.6
2.1 and 4.1
.................
Answer:
2.1 should be the first one, and 4.1 should be the next one