1
Step-by-step explanation:
cos 2x + 2 sin²x
= (1 - 2 sin²x) + 2 sin²x
= 1 - 2 sin²x + 2 sin²x
= 1
A 12.5-gallon gasoline tank is 1/8 full. How many gallons will it take to fill the tank?
Answer:
10.9375 galStep-by-step explanation:
Volume of the tank = 12.5 galFull = 1/8 of the tankEmpty = 1 - 1/8 = 7/8 of the tankVolume to fill the empty part:
12.5*7/8 = 12.5 * 0.875 = 10.9375 galIGNORE THE BOTTOM ONE PLEASE HELP
Answer:
see explanation
Step-by-step explanation:
∠ A and ∠ FCE are corresponding angles and are congruent , then
∠ A = 150°
∠ FCE and ∠ C are vertically opposite angles and are congruent , then
∠ C = 150°
∠ FCE and ∠ ECB are adjacent angles on a straight line and sum to 180°
∠ ECB = 180° - ∠FCE = 180° - 150° = 30°
∠ E = 180° - (30 + 45)° ← sum of angles in a triangle
∠ E = 180° - 75° = 105°
∠ CBE and ∠ D are same- side interior angles and sum to 180° , then
∠ D = 180° - 45° = 135°
Use the formula below to find the 10th term in the geometric sequence.
an = (-2)(3)^n-1
A. -13,122
B. -39,366
C. -118,098
D. -354,294
Answer:
uhhhh I can't explain how but the answer is B. -39,366.
The basketball team scored 49 points in thechampionship game. This is 12 points more than
half of their score in the first round game. How many points did the team score in their first round game?
I need to determine the perimeter of this rectangle 5cm x 9cm
P= cm
A=cm
Answer:
5+5+9+9 = 28 cm
Step-by-step explanation:
to determine perimeter add the length of each side (2 sides = 5cm and two sides = 9cm.)
Find the surface area and volume of the solid. Round your answers to the nearest hundredth.
Answer:
Surface area = 240.34 square units
Volume = 253.03 cubic units
Rectangular prism
Step-by-step explanation:
2(6.8 * 6.1) + 2(6.1 * 6.1) + 2(61 * 6.8) =
82.96 + 74.42 + 82.96 = 240.34
Volume
(6.8 )(6.1)(6.1) = 253.03
PLEASE I NEED HELP RIGHT NOW!!!
The altitude of an airplane is decreasing at a rate of 44 feet per second. What is the change in altitude of the airplane over a period of 37 seconds?
A. -1,628 feet
B. 81 feet
C. -81 feet
D. 1,628 feet
Answer:
1628
Step-by-step explanation:
Answer:
Either A or D. But I'd vote on A. Hope this helps! :)
Step-by-step explanation:
PLS MARK BRAINLEST!!!Describe the translation of the point to its image (-2,5) (3,1)
Answer:
it is a
Step-by-step explanation:
2-5
2
Find the slope from the 2 points.
(-12,-9) and ( 18, 6)
-2
-1/2
2
1/2
Step-by-step explanation:
the slope of a line is the ratio y/x.
that means when going from one point to the other, how many units is y changing, when x changes a certain number of units.
so, going from one point to the other here, x changes by 30 units (from -12 to +18). and y changes 15 units (from -9 to 6).
therefore, the slope is
15/30 = 1/2
Find the value of 72% of 90 kg
Answer:
64.8 kg kilograms
Step-by-step explanation:
please mark brainiest
hope it works out for you
Answer:
the value of 72% of 90 kg:
72 * 90 / 100 = 64,8 kg
What is the slope of the line that is perpendicular to the line that passes through the points (-1,3) and (2,-4)?
solve include real and non real solutions.
x^2-8=0
Answer:
[tex]x=+2\sqrt{2} and-2\sqrt{2}[/tex]
Step-by-step explanation:
[tex]x^2-8=0[/tex]
[tex]x^2=8[/tex]
[tex]\sqrt{x^2} = \sqrt{8}[/tex]
[tex]x=2\sqrt{2}[/tex]
plus or minus
a number is divisible by 3 if the sum of all the digits is divisible by?
Answer:
3
Step-by-step explanation:
ANSWER QUICK PLEASE!!
Which expression is undefined?
A. (10 - 10) / 10
B. 0 divided by 3/4
C. 3 / (7 - 7)
D. (-5 - 0) / 5
Answer:
c...........3/(7-7) is the undefined expression
The current United States population is about 314,000,000 people. If an iPad costs $500.00, what would be the total cost of purchasing an iPad for each person?
Answer:
157,000,000,000
Step-by-step explanation:
314,000,000 X 500
A submarine dives 51 3/5 meters below the surface of the water in 4 minutes. how many meters does the submarine dive each minute? NO LINKS!
A: 12 9/10
B: 12 3/4
C: 206 2/5
D: 47 3/5
Answer:
a
Step-by-step explanation:
51 3/5 = 258/5
258/5 / 4 = 12.9 (meters the submarine dives each min)
now we have to find out what 12.9 is as a fraction!
12.9= 12 9/10 because .9 is equal to 9/10, and 12. equals 12!
Determine which of the following is a geometric sequence.
A. 2, 5, 8, 11
B. 2, -6, -18, -24
C. 3, -6, 12, -24
D. 3, 6, 18, 36
Step-by-step explanation:
A is in geometric sequence as 3 is added in the number,
2 + 3 = 5, 5 + 3 = 8, 8 + 3 = 11
hope this answer helps you dear...take care and may u have a great day ahead!
(-14)x=+56??????????????????????
Mrs. O'Brian purchased 3 gallons of
strawberries for $1.00 per pint. How
much did the strawberries cost?
Answer:
$24
Step-by-step explanation:
3 gallons = 24 US pints
24 * $1 = $24
someone help i’ll mark brainliest!!! Find the equation of the line through (7,1)
that has a slope of 1/2
Express your answer in General (Standard) Form.
Answer:
y=1/2x - 2.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
We can use the point-slope formula to write an equation for this line. The point-slope formula states :
where m is the slope and (x1 y1) is a point the line passes through .
We can substitute the slope and values from the point to give:
(y-1) = 8 (x-7)
We can also transform this equation to the slope-intercept form by solving for
y
. The slope-intercept form of a linear equation is: y=mx+b
where the m is the slope and b s the y-intercept value.
y-1= (8 times x) - ( 8 times 7)
y-1= 8x - 56
y-1 + 1= 8x- 56 + 1
y-0= 8x- 55
y= 8x - 55
considering the line negative x -6 y equals -6 what is the line perpendicular with a slope of a line perpendicular to this line what is the slope of the line parallel to this line
9514 1404 393
Answer:
perpendicular: undefined
parallel: zero
Step-by-step explanation:
The line y = -6 is a horizontal line. Between any two points on the line, the difference in y-values is zero, and the difference in x-values is non-zero. The slope of this horizontal line is the ratio of these differences:
slope = 0/(non-zero) = 0
Any parallel line will have the same slope. The slope of a parallel line is 0.
__
A line perpendicular to a horizontal line is a vertical line. It will have the equation x = constant. Between any two points on the line, the difference in y-values is non-zero, and the difference in x-values is zero. The slope of this vertical line is the ratio of these differences:
slope = (non-zero)/0 = undefined
The slope of the perpendicular line is undefined.
Simplify: 3!
A) 3
B) 6
C) 1
D) 5
57²⁰¹⁸ and 51²⁰²⁰, which one is larger? (57^2018 vs 51^2020)
Answer:
steps below
Step-by-step explanation:
Set log x = a and log y = b
x = 10ᵃ and y = 10ᵇ
if a>b 10ᵃ > 10ᵇ
so x > y
x = 57²⁰¹⁸ y = 51²⁰²⁰
log x = log 57²⁰¹⁸ = 2018 * log 57 = 3543.36 : (a)
log y = log 51²⁰²⁰ = 2020 * log 51 = 3449.29 : (b)
3543.36 > 3449.29 log x > log y
x > y: 57²⁰¹⁸ > 51²⁰²⁰
susie change 500 dollars to euros $1 = 1.0697 euros
Answer:
€ 534.35Step-by-step explanation:
Use the rate to change:
$1 = €1.0697$500 = xx = 500*1.0687 = 534.35[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Here's the conversion :
$ 1 = € 1.0697$ 500 = € 1.0697 × 500$ 500 = € 534.85How many square feet of outdoor carpet will we need for this hole?
Answer:
30 square feet
Step-by-step explanation:
Multiply
3 Equivalent ratioS for 7:9
Answer:
21:27
14:18
35:45
Step-by-step explanation:
These are only a few
Enter the ratio as a fraction in lowest terms 14 minutes to 18 minutes
Answer:
Step-by-step explanation:
14+18=32
14/32,18/32
7/16,9/16
Needing help with geometry
Answer:
Bro can you send your question
Answer:
whate your questions bro
Write an equation for the description.
Hector is visiting a cousin who lives 300 miles away. He has driven 95 miles. How many more miles does
he need to drive to reach his cousin's home? Let d be how many miles left to reach his cousin's home.
Given the diagram, complete the two-column proof and
solve for x.
Answer:
x=7
Step-by-step explanation:
11x+57=15x+29 [Alternate exterior angles]
57-29=15x-11x
28/4=x
7=x
Answer:
Nnnnnnnnnnnnnnn
7x =x