Answer:
C
Step-by-step explanation:
7×b-7×0.17b
=7b-1.19b
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)
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
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.
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!!
Round 2,492,786.34 to the nearest whole number
Answer:
2,492,786
Step-by-step explanation:
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
WORTH 20 POINTS ✨HELPPP PLEASEEE
Answer: 9.42 for circumference and the area is 7.065
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:
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:
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=5.1Pls help with c. and d. Plssss I will give bonus if you answer it correctly.
Answer:
Austing needs 160 boxes to complete the rack.
Step-by-step explanation:
Givens
12 cereral boxes occupies 60 centimeters of shelving.
The rack has 10 meters of shelving, equivalent to 1000 centimeters.
2 meters are already used.
There are 800 centimeters of shelving remaining.
To find the total number of cereal boxes needed to use the whole rack, we just need to use the rule of three: If 12 cereal boxes occupies 60 centimeters of shelving, 800 centimeters would require how many cereal boxes
Therefore, Austing needs 160 boxes to complete the rack.
Answer: C. Y=(1000-200)/5
D. 160 boxes of cereal
Step-by-step explanation: To create the equation I changed the measurements all to centimeters by scaling up the meters by 100 since there are 100 centimeters in a meter.
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:
Jimmy and his friends want to sign up for a game rental service. They have information on game rental plans from four different companies. The friends plan to rent 15 games per month. Which plan is the BEST? Use substitution to determine the best price.
A-GameStop; pay $5 for each game ordered. (5g)
B-Level-up Games; pay $25 to join and $2 for each game ordered (2g + 25)
C-Game Changer; pay $20 to join and $2.50 for each game ordered (2.5g + 20)
D-Game Land; pay $60 per month for unlimited amount of game rentals (60)
Answer: A
Step-by-step explanation:
It’s the cheapest
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
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 - 5Solve the equation.
x+2y=0
Answer: y=-(x/2)
Graph it to figure out.
Which expression is equivalent to
Answer:
i think is b
Step-by-step explanation:
Answer:
C: 2
Step-by-step explanation:
the numerator equals 8 and the denominator equals 2, so its (8/2)^1/2
which all equals 2
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
I need help my mind don’t proses right.! f(x) = x2. What is g(x)?
Answer:
hey will you join in zo om if your intrested
1.5n=3n+5
2. 8a = 4a + 20
3.4n + 5 = 3n - 8
4. 12y = 3y + 24
5. 6n + 7 = 8n -9
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:
Find 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
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]
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:
Whats a Factor tree?
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 :)
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!
The Flying Dutchman, located in St. Martin, is the steepest zipline in the world. While sailing downhill at 56 miles per hour, you lose 1,050 feet of elevation across 2,800 feet of cable. If you are at the top getting strapped in, what is the angle of depression between you and a safe landing at the bottom? (Drawing a diagram may help.)
Answer:
Sine angle A = 1,050 / 2,800
Sine angle A = .375
arc sine (.375) = Angle A
Angle A = 22.024 Degrees
(THIS REPLACES THE PREVIOUS ANSWER.)
Step-by-step explanation:
24 foot wire is tied from a stake in the ground to the top of flagpole. If the angle elevation from the stake to the top of the flagpole is 53 degrees how far is the stake from the base of the flagpole? Round to the nearest tenth
Answer:14.44 ft
Step-by-step explanation:
Given
Length of wire [tex]l=24\ ft[/tex]
Angle of elevation [tex]53^{\circ}[/tex]
from the figure
[tex]\Rightarrow \cos 53=\dfrac{b}{24}\\\\\Rightarrow b=24\cos 53=14.44\ ft[/tex]
The answer is, [tex]14.44 ft[/tex]
Definition of angle of evevation:
The angle between the horizontal and a line of sight from the observer to a place of interest that is "upwards."
An Angle of Depression occurs when the angle moves "downwards."
Given,
Wire's length [tex]l=24ft[/tex]
The elevation angle [tex]53^{0}[/tex]
[tex]cos 53= \frac{b}{24} \\b=24 cos53\\=14.44ft[/tex]
Learn more about angle of elevation here, https://brainly.com/question/88158
#SPJ2
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