Answer:
c
Step-by-step explanation:
From the definition of a function, an x-value cannot have more than 1 corresponding y-value. Since x = -5 has already been used, it cannot be used again with a different value for y.
If a1=4 and an =2an-1 – 1 then find the value of a4.
The value of [tex]a_{4} = 37[/tex].
Here,
The value of [tex]a_{1} = 4[/tex]
And, [tex]a_{n} = 2 a_{n-1} -1[/tex]
We have to find value of [tex]a_{4}[/tex].
What is Sequence?
A sequence is a collection of elements that are arranged according to a specific pattern.
Now,
The value of [tex]a_{1} = 4[/tex]
And, [tex]a_{n} = 2 a_{n-1} -1[/tex]
Then to find value of [tex]a_{4}[/tex], we can find [tex]a_{2} , a_{3}[/tex] as;
[tex]a_{2} = -2(a_{1} ) - 1\\a_{2} = -2(4) - 1\\a_{2} = -9[/tex]
And,
[tex]a_{3} = -2(a_{2} ) - 1\\a_{3} = -2(9) - 1\\a_{3} = -19[/tex]
Hence, the value of [tex]a_{4}[/tex] is;
[tex]a_{4} = -2(a_{3} ) - 1\\a_{4} = -2(-19) - 1\\a_{4} = 37[/tex]
Therefore, The value of [tex]a_{4} = 37[/tex].
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A swimming pool is in the shape of a right triangle. One leg has a length of 15 feet and the hypotenuse is √325 feet. Estimate the length of the other leg. Round to the nearest integer, if necessary
Answer:
10 feet
Step-by-step explanation:
a^2+b^2=c^2
15^2+B^2=365
225+b^2=365
b^2=100
b=10
x^2-y^2+2y+1
Factorize
Answer:
Equation is already in factor form
Step-by-step explanation:
Eva is showing her work in simplifying (7.3 − 7.2) − 3.8 + 3.7. In which step did Eva make an error?
Step 1: (7.3 − 7.2) − 3.8 + 3.7
Step 2: 7.3 + (−7.2 − 3.8) + 3.7 (commutative property)
Step 3: 7.3 − 11 + 3.7
Step 4: 7.3 + 3.7 − 11 (commutative property)
Step 5: 11 − 11 = 0
Step 2; she wrote commutative instead of distributive
Step 4; she wrote commutative instead of distributive
Step 4; she wrote commutative instead of associative
Step 2; she wrote commutative instead of associative
Answer:
I think step 4
Step-by-step explanation:
Answer:
Step 2; she wrote commutative instead of associative
Step-by-step explanation:
i took the test the other one is wrong
Find the radius...
Help plz
State the x and y intercepts for the graph of - 2y - 5x = - 20 . Show the work plsss.
Tricia made a circular mat from a square piece of cloth.
-Picture-
Which is closest to the circumference, in inches, of the circular mat?
A. 44 inches
B. 88 inches
C. 154 inches
D. 616 inches
Answer:
The circumference of the circle has a measurement of 44 inches
Step-by-step explanation:
From the question, as we can see, the given length represents the diameter of the circle
To get the circumference of the circle, we use the formula for the circumference
this is;
C = pi * d
in this case, d = 14 in
Thus, we have it that;
C = pi * 14 = 14 * 22/7 = 44 in
kirans aunt is 15 years older than kiran. how old will kirans aunt be when kiran is 13?
Answer:
28 will be your answer!
Step-by-step explanation:
I don't properly know how to explain thia but i know its the answer
Answer:
28
Step-by-step explanation:
13 + 15 = 28
Kirans aunt is 15 years older the kiran so you add both the numbers given to you, 13 + 15 =28.
Jane incorrectly finds the volume of the cone using the following work. Explain Jan’s error and find the correct volume AND surface area. Show all work
Answer:
V=39.25. the height is not 6.25, 6.25 is the slope. you have to use Pythagoras theorem to find the height, then you can find the volume.
The surface area of the cone shown in the figure, for which Jane incorrectly finds the volume, is 74.33 cm².
What is of volume of cone?
Volume of cones the amount of quantity, which is obtained by the solid or object in the 3 dimensional space.
Volume of cone can be given as,
[tex]V=\dfrac{1}{3}\pi r^2h[/tex]
Here, (r) is the radius of the base of the cone and (h) is the height of the cone.
The height of the cone is 6.5 cm and the radius is 2.5 cm. Put the values in the above formula,
[tex]V=\dfrac{1}{3}\pi r^2h\\V=\dfrac{1}{3}\pi (2.5)^2(6.5)\\V=\dfrac{1}{3}\pi (6.25)^2(6.5)\\V=\dfrac{40.625\pi }{3}\\V\approx42.5\rm\;cm^3[/tex]
The surface area of cone can be find out by the following formula,
[tex]A=\pi r(r+\sqrt{h^2+r^2})[/tex]
Again put the values in this formula,
[tex]A=\pi \times2.5(2.5+\sqrt{(6.5)^2+(2.5)^2})\\A=\pi \times2.5(2.5+\sqrt{48.5})\\A=\pi \times2.5(2.5+6.96)\\A=\pi \times2.5(9.46)\\A=74.33\rm\; cm^2[/tex]
Thus, the surface area of the cone shown in the figure, for which Jane incorrectly finds the volume, is 74.33 cm².
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2)
The scale on a map is 1 : 20 000. What actual distance does a length of 8 cm on the
map represent?
Answer:
1.6 km
Step-by-step explanation:
8 x 20 000 = 160 000 cm = 1.6 km
I NEED HELP PLSSS HELP SHOW WORK IF YOU KNOW
PLEASE SHOW THE PROBLEM WE CANT SEE
The table shows the number of athletes in sports at a school in the fall. No students belong in more than one of the groups shown.
Answer:
Part A
Select from respective cells of the table
1. 22/40*100% = 55%2. 32/56*100% = 57.1%3. 56/96*100% = 58.3%4. 42/96*100% = 41.8%Part B
18/40 represents the percent of soccer players who are varsity athletesCorrect choice is C
There are 4 angles shown.
Which of these are Acute,Right,Obtuse,and Straight angle?
hello can someone please help me
Answer: on what?
Step-by-step explanation:
Answer:
The math looks kind of hard
Step-by-step explanation:
I'm sorry i cannot help, but if anyone wants to try and help make sure to go on her profile and click her latest question or unanswered questions.
HELP FAST FOR TEST PLZ
Find measure of angle 1
DUE NOW!!! HELP IF U CAN
There are five puppies in a box, two are girls and three are boys What is the ratio of girls to boys
Answer:
2:3
Step-by-step explanation:
2 would represent the Fraction of girls 3 would represent the fraction of boys.
Answer:
2:3
Step-by-step explanation:
The ratio is a relation between two amounts of something. In our case, we compare the amount of girl puppies to boy puppies, and so we get the following ratio...
2:3
1) Millie needs 2 cups of flour for the banana
bread she is making. How much flour will
Millie need to make 3 batches of banana
bread?
Answer:
2 x 3 = 6 cups
Step-by-step explanation:
Solve for h. 28 = h 9 + 23
Answer:
28 = h 9 + 23
28 = h 32
h = 32 - 23
h = 9
Find the output y when the input x is -4
y=?
PLZ HELP
REAL ANSWERS ONLY! 20 points!!
Answer:
I think the answer is 85.64m
Step-by-step explanation:
URGENT pleaseee help me ill send you 20 dollars plus 50 points and brainlist if right!!!!
use the sohcahtoa method!
Answer:
A. 22°
E. 15
I. 39°
F. 71°
C. 25.6
H.12.9
K.55°
Find the difference. Write your answer in scientific notation.
(2.4 x 10^-1) - (5.5 x 10^-2) =
Answer:
0.185 Step-by-step explanation:
(2.4 x 10^-1) - (5.5 x 10^-2)
0.24-0.055= 0.185
What is the measure of angle B in the figure below?
Answer:
The answer is A
Step-by-step explanation:
30* 60* 90*
CORRECT ANSWER = BRAINLIEST | NO LINKS. NO FILES. I will report you if you answer with either of these. The question is attached below:
Answer:
1091.6 cubic yards or C
Thanks in Advance For Brainiest
Step-by-step explanation:
First, we want to find the area of the circle at the top of the cylinder, so we want to do πr^2 so 3.14x(11.4/2)^2
This is = to 102.0186
Then we do 102.0186 times the height or 10.7 to get 1091.59902
We simplify to get 1091.6
Cole is saving money from his summer job. He wants to buy a new video game that costs 45.25. He will save the same amount each week for 5 weeks. How much money will Cole save each week for the video game?
Cole will have to save 9.05 for 5 weeks in order to get the video game.
How to solve this problem- 45.25 ÷ 5 = 9.05
---------------------------------------------------------------------------------------------------------------
bai ^^
I need help with this don’t know this and got it today and it’s due today
The Answer Is ?=15.
have an amazing day <3
1
1. Triangle ABC was dilated with the origin as the center of
dilation to create
아아하하
2
1
Which rule best represents the dilation that was applied to
Triangle ABC to create 4BC'?
A (Xy) - (x + 2 y + 2) C. (x, y) - (2x2)
B. (x, y) = (x-2y + 2) D. (x, y) - (x %
Y)
ОА
OD
Answer:
f=A%27(-0.25%2C0.75)%5C%5C%5C%5CB%27(1.75%2C-0.25)%5C%5C%5C%5CC%27(-1%2C-0.25)
Step-by-step explanation:
A Dilation is defined as a transformation in which the image and the pre-image have the same shape, but their sizes are different.
When the scale factor is greater than 1, the image obtained after the dilation is greater than the pre-image and it is an "Enlargement".
When the scale factor is is between 0 and 1, the image obtained after the dilation is smaller than the pre-image and it is an "Reduction".
In this case you know that the triangle ABC was dilated by this scale factor:
With the origin as the center of dilation.
Since:
It is a Reduction.
You can identify that the vertices of the triangle ABC are:
So you need to multiply the coordinates of each vertex of the triangle ABC by , in order to get the coordinates of the triangle A'B'C. Then, you get:
plzzzzz help meeEEEE ALL 3 REWARD BRAINLIESTT
Answer:
See below
Step-by-step explanation:
1. (refresh if you cant see it)
[tex]F = \frac{9}{5}C+32\\\text{Bring variable C to left side}\\-\frac{9}{5}C=-F+32\\\text{Multiply by -1}\\\frac{9}{5}C=F-32\\\text{Multiply the equation by 5/9 to get C by itself}\\C = \frac{5}{9}(F-32)[/tex]
2.
2(x + 3) = 20
Distribute.
2x + 6 = 20 [tex]\neq[/tex] 2x + 3 = 20
Your answer is false.
3.
x [tex]\geq[/tex] -2 because even though it includes the expression "x>5", those values are also above -2, including 5.
Find the missing measurements in triangle ABC. Round your answer to the nearest tenth if necessary.
Measure of Angle B=
AB=
AC=
Answer:
m∡B = 55°
AB = 5.2
AC = 7.4
Step-by-step explanation:
m∡B = 180-(90+35)
use Law of Sines to find AB and AC:
sin 90° / 9 = sin 35°/AB
AB = .57(9) = 5.2
sin 90° / 9 = sin 55°/AC
AC = .82(9) = 7.4
The solution is,
m∡B = 55°
AB = 5.2
AC = 7.4
What is triangle?A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.
here, we have,
from the given figure, we get,
m∡B = 180-(90+35)
=55
use Law of Sines to find AB and AC:
sin 90° / 9
= sin 35°/AB
AB = .57(9)
= 5.2
sin 90° / 9 = sin 55°/AC
AC = .82(9
= 7.4.
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