Answer:
Step-by-step explanation:
x 12 = 12.
x 6 = 12.
x 4 = 12.
x 3 = 12.
if possible, verify sin^2(x)/1 + cos(x) = 1 - cos(x) by rewriting the left hand side of the equation.
I really really don't understand identities, and I'm not getting replies from my teacher. Thank you for any help I do get!!
sin^2(x)/1 + cos(x) = 1 - cos(x)
We know that sin^2 x = 1 - cos^2 x. It is one of our trig identities.
We now have this:
(1 - cos^2 x)/(1 + cos x) = 1 - cos x
Take note:
1 - cos^2 x is a perfect square difference in terms of cosine.
So, (1 - cos^2 x) = (1 + cos x)(1 - cos x).
We now have this:
[(1 + cos x)(1 - cos x)]/(1 + cos x) = 1 - cos x
Do you see what happens on theft side?
On the left side, (1 + cos x) cancels out on the top and bottom.
We are now left with this:
1 - cos x = 1 - cos x
Done!!
1.5n=3n+5
2. 8a = 4a + 20
3.4n + 5 = 3n - 8
4. 12y = 3y + 24
5. 6n + 7 = 8n -9
A paper airplane is thrown from the roof of a house and travels 7 feet through the air. The paper airplane's flight path makes a 30∘angle with the ground. How far from the base of the house does the paper airplane land on the ground?
Group of answer choices
3.5 feet from the house
7.12 feet from the house
4.04 feet from the house
6.06 feet from the house
PLEASE HELP
A mouse is trapped in a maze. To find his way out, he walks 15 m, makes a 90° left turn, walks 8 m, makes another 90° left turn, and walks 10 m. What is the magnitude of the resultant vector?
Destiny has a bag with 3 green, 4 red, and 5 blue marbles. Destiny will pick 2 marbles from the bag, one at a time without looking. She will not replace a marble before picking the next marble. What is the probability of Destiny picking a red marble, followed by a green marble?
A. 1/12
B. 1/11
C. 7/12
D. 1/2
Trina said that $1.05 + $2.25 = $3.35 because a dollar and 2 quarters plus 2 dollars and a quarter equals 3 dollars and 3 quarters. Do you agree or disagree with her statement? Explain.
Answer:
No, I do not agree
Step-by-step explanation:
Recall :
1 quarter = 25 cents = $0.25
Therefore,
$1 and 2 quarters ; $1 and 2(0.25) =50 cents = $1.50
2 dollars and a quarter ; $2 and 0.25 = $2.25
Adding both:
$1.50 + $2.25
__ $1. 50
__ $2.25
________
__$3.75
_______
The sum is $3.75 and not $3.25
$1 and 2 quarters ; $1 and 2(0.25) =50 cents = $1.50 and not $1.05
Someone pls help:( I can’t
Answer:
x = 8 is the answer :)
Step-by-step explanation:
Slope(m) = -2/5
slope is passing through the points: (x,1) and (3,3)
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m = \frac{3-1}{3-x}[/tex]
[tex]m=\frac{2}{3-x}[/tex]
[tex]-\frac{2}{5} =\frac{2}{3-x}[/tex]
-2(3 - x) = 2 × 5
-6 + 2x = 10
2x = 10 + 6
2x = 16
x = 8
Hopefully, this answer helped :)
NUMBER 9 I NEED THIS RN MY FRIEND NEEDS THE ANSWER HELP ME PLEASE (60 Points) HELP
Answer:
18
Step-by-step explanation:
The first term is 18
I mean it's the first number
WORTH 20 POINTS ✨HELPPP PLEASEEE
Answer: 9.42 for circumference and the area is 7.065
Step-by-step explanation:
Describe how oral traditions, proverbs, and music are key features of Africa's cultural legacy.
==================================================================
Even if you spam the question or just use it for points GodBless you!! : 3
Answer:
Since there were no previous oral traditions they provide information about African history, legends and culture. ... Through music they transmit ideas, feelings, values, historical celebrations and important occasions.
Step-by-step explanation:
The height of a pyramid created by 4 diagonals inside a cube is 6 units. What is the volume of the pyramid? Choose the expression that can help determine this.
A) [tex]\frac{1}{3}[/tex](6⋅6⋅6)
B) [tex]\frac{1}{6}[/tex](6⋅6⋅6)
C) [tex]\frac{1}{6}[/tex](12⋅12⋅12)
D) [tex]\frac{1}{3}[/tex](12⋅12⋅12)
Answer:
answer a
Step-by-step explanation:
Identify each polygon. Describe each polygon by as many names
as possible.
1.
2.
3.
4.
5.
6.
Answer:
A polygon with one side could be a henagon or monogon
2 sides = digon or bigon
3. sides trigon or traingle ( equaliteral traingle , isosceles traingle Right traingle, acute traingle , obtuse traingle.
4 sides all the quadrilateral include square rectangle parallelogram, trapezium, rhombus , kite
5 sides = pentagon
6= hexagon
7 heptagon
8 octagon
9 nonagon
10 decagon
The total weight of the shape blocks on both sides of Michael's pan balance equals 30 grams. Circles weigh 5 grams, squares weigh 10 grams, and triangles weigh 3 grams. The right side has a circle and a square. How many triangles are on the left side?
Answer:
There would be 5 triangles on the other side
Step-by-step explanation:
If the right side has 1 circle and 1 square, that would mean that there is 5g+10g=15g weight on the right side
In total, there is 30g, and we already have 15
We can use the equation 15+3x=30, and by solving, the answer would be 5 triangles.
Hope this helps!
Round 2,492,786.34 to the nearest whole number
Answer:
2,492,786
Step-by-step explanation:
Roxanne baked 2 cakes in 3 hours,
3 cakes in 4 hours, and 4 cakes in 5
hours. Determine whether the
number of cakes baked is
proportional to the number of
hours.
Simplify
(x-5)^2
If right will get brainleist
Answer:
x² - 10x + 25
Step-by-step explanation:
FOIL (first, inner, outer, last)
(x-5)(x-5)
x² - 5x - 5x + 25
x² - 10x + 25
In the following equations, what would you multiply the second equation to
eliminate the "y"? *(PLEASE I WILL GIVE BRAINLIEST!!)
3x + y = 20
x + y = 12
1) -1
2) 1
3) -3
4) 3
Answer:
-1
Step-by-step explanation:
7) The radius of a sphere is 7 feet. Determine the volume of the sphere. Round your answer
to two decimal places. (use n = 3.14)
Complete the equations below. please only if you know
Answer:
153, 51, 5.1
Step-by-step explanation:
15.3÷3= 153 tenths÷315.3÷3=51 tenths15.3÷3=5.1Find area triangle of 15 ft and 18 ft
The area of the triangle is. Ft2
Answer:
a= 135
Step-by-step explanation:
18*15=135
Melissa invests $700 at 4% simple interest per year. How much interest will she earn in 3
years?
Answer:
Step-by-step explanation:
700(.04)(3)= $84
I need an answer fast!
Answer:
A
Step-by-step explanation:
3 for the side and one at the bottom
Answer:b
Step-by-step explanation:
I'm not sure about this one but, I think B because the net looks like it had 3 sides.
please help lol im confused i dont know why but please help
Answer:
No, but if it was how many studens school like math then yes
in Step-by-step explanation:
Solve the equation.
x+2y=0
Answer: y=-(x/2)
Graph it to figure out.
If a driver drives at a constant rate of 32 miles per hour, how long would it take the driver to drive 176 miles?
Answer: 5.5 hours
Step-by-step explanation:
It will take 5.5 hours because divided 176 and 32: 176/32 equals 5.5
Answer:
5.5 hours
Step-by-step explanation:
Write a recursive sequence that represents the sequence defined by the
following explicit formula:
An = 1 - 5(n − 1)
Answer:
[tex]a_1=1\\a_n=a_{n-1}-5[/tex]
Step-by-step explanation:
a₁ = 1 - 5(1 - 1) = 1 - 5·0 = 1
a₂ = 1 - 5(2 - 1) = 1 - 5·1 = 1 - 5 = a₁ - 5
a₃ = 1 - 5(3 - 1) = 1 - 5·2 = 1 - 5 - 5 = a₂ - 5
a₄ = 1 - 5(4 - 1) = 1 - 5·3 = 1 - 5 - 5 - 5 = a₃ - 5
and so on, therefore:
aₙ = aₙ₋₁ - 5What is the value of the expression as a Fraction
Araine borrows $400 on a 4-year loan. She is charged 5% simple interest per year. How much interest is she charged for 4 years? What is the total amount she has to pay back?
Answer:
Interest Charged = $80
Total payback = $480
Step-by-step explanation:
According to the scenario, computation of the given data are as follows,
Present Value (PV) = $400
Time period (n) = 4 years
Interest rate (r) = 5%
So, we can calculate the future value(FV), by using following formula,
FV = PV ( 1 + n × r)
By putting the value, we get
FV = $400 ( 1 + 4 × 0.05)
= $480
Hence total amount she has to pay back = $480.
Interest charged = FV - PV
= $480 - $400
=$80
11.) Solve the equation.
I
16m² + 8m = 0
a) m = 0, m = -2
b) m = 0, m=2
c) m= 0, m=
d) m = 0,m=-1/2
The radius of a quarter circle is 3 kilometers. What is the quarter circle's area?
Use 3.14 for and round your answer to the nearest hundredth. WILL GIVE BRAINIEST!!!
Answer:
[tex]area = \frac{1}{4} \pi {r}^{2} \\ = \frac{1}{4} \times 3.14 \times ( {3}^{2} ) \\ = 7.07 \: km²[/tex]