Step-by-step explanation:
sin
2
(
20
°
)
+
sec
2
(
20
°
)
Simplify each term.
Tap for fewer steps...
Rewrite
sec
(
20
°
)
in terms of sines and cosines.
sin
2
(
20
°
)
+
(
1
cos
(
20
°
)
)
2
Apply the product rule to
1
cos
(
20
°
)
.
sin
2
(
20
°
)
+
1
2
cos
2
(
20
°
)
One to any power is one.
sin
2
(
20
°
)
+
1
cos
2
(
20
°
)
Simplify each term.
Tap for fewer steps...
Rewrite
1
as
1
2
.
sin
2
(
20
°
)
+
1
2
cos
2
(
20
°
)
Rewrite
1
2
cos
2
(
20
°
)
as
(
1
cos
(
20
°
)
)
2
.
sin
2
(
20
°
)
+
(
1
cos
(
20
°
)
)
2
Convert from
1
cos
(
20
°
)
to
sec
(
20
°
)
.
sin
2
(
20
°
)
+
sec
2
(
20
°
)
The result can be shown in multiple forms.
Exact Form:
sin
2
(
20
°
)
+
sec
2
(
20
°
)
Decimal Form:
1.24945210
how to find the circumference of a circle when given the radius
Answer:
C=2πr
Step-by-step explanation:
That is the formula to find the circumference C Equals 2 times 3.14 times radius
Answer: 2πr
Step-by-step explanation:
r=radius
π=pi
times by 2
you can use goo.gle and put the radius in and get the amount
Just type "circumference of a circle"
What is the simplified answer of ∛27×250
Answer:
750 if just 27 is being rooted
18.9 if 27 x 250 is being rooted
Step-by-step explanation:
The triangles below are similar.
Which statement about the triangles is true?
Need Help 20 points plz.
9514 1404 393
Answer:
the correct choices are shown
Step-by-step explanation:
Statement . . . . . Reason
1. c ║ d; ∠4 = ∠5 . . . . . Given
2. ∠4 = ∠7 . . . . . Alternate interior angles are equal
3. ∠5 = ∠8 . . . . . Vertical angles are equal
4. ∠7 = ∠8 . . . . . Substitution
Mount Whitney Trail starts at an elevation of 8,350 ft above sea level and ends at an elevation of 14,500 ft above sea level. The temperature changes by -5.4 F for every thousand feet gained in elevation. What is the change in temperature from the starting elevation to the ending elevation of Mount Whitney Trail?
Answer:
I would think -32.4. - Tell me if I am wrong
Step-by-step explanation:
I hope this helps :)
apple watch costs $325. There is an 8% sales tax rate. What is the total amount of tax in dollars and cents?
Answer:
$26.00
Step-by-step explanation:
no explination :D
Answer:
the tax would be 26
Step-by-step explanation:
please help me I'm confused
Answer: The correct answer is 8^2 or 64
Step-by-step explanation: Can I please get the brainliest answer.
Answer:
8²
Step-by-step explanation:
When we divide numbers with exponents that have the same bases, we can just subtract the exponents. So, 8^9/8^7 equals 8^(9-7) = 8^2 (Which equals 64, but it isn't a power).
If the measure of AngleB is 40°, what measures can AngleA and AngleC be? Select the three correct answers. 20° and 30° 30° and 110° 55° and 85° 60° and 90° 70° and 70°
Answer:
30° and 110°
55° and 85°
70°and 70°
Step-by-step explanation:
Given that :
Angle B = 40°
Sum of angles in a triangle :
Angle (A + B + C) = 180°
A + 40 + B = 180
A + C = 180 - 40
A + C = 140°
From the Given options ;
The sun of the Angles Given must add up to 140°
Hence,
30° and 110° = 140°
55° and 85° = 140°
70°and 70° = 140
Simplify 2/5 (5w + 10 )
Answer:
2w+4
Step-by-step explanation:
:)
Answer:
[tex]2(w + 2)[/tex]
Step-by-step explanation:
1. Simplify.
[tex] \frac{2(5w + 10)}{5} [/tex]
2. Factor out the common term 5.
[tex] \frac{2 \times 5(w + 2)}{5} [/tex]
3. Simplify 2×5(w+2) to 10 (w+2).
[tex] \frac{10(w + 2)}{5} [/tex]
4. Simplify.
[tex]2(w + 2)[/tex]
Therefor, the answer is, 2 ( w + 2 )
which of the following is the best estimate for 487 divided by 67
Answer: 7.26
Step-by-step explanation:
calculator
Worth 10 points!! Help!
anwer: 7 the answer is 7
Answer:
Ruby needs 7 combined.
Step-by-step explanation:
If she needs 1/4 cup of powdered milk for one batch, then we multiply 1/4 by 4 to see how much she needs for 4 batches, which is 4/4, or one whole.
If she needs 3/2 cups of whole wheat for one batch, then we multiply 3/2 by 4 to see how much she needs for 4 batches, which is 12/2, or 6.
Then we combine 6 and 1, which is 7.
PLEASE HRY ILL MARK BRAINLIEST
give the equation of the line passing through the points (-2,-5)
and (1,-1/2)
who ever answers this first gets brainly
Answer: A
im sure
Step-by-step explanation:
Answer:
The answer is D
Step-by-step explanation:
C = πd
hope this helps xx
Joe bought g gallons of gasoline for $2.65 per gallon and c cans of oil for $3.45 per can. a. What expression can be used to determine the total amount Joe spent on gasoline and oil? b. If he bought 8.4 gallons of gasoline and 9 cans of oil, how much did he spend in all?
Step-by-step explanation:
PART A
a=total amount
c=cans of oil
g=gasoline
a=2.65g+3.45c
PART B
a=2.85(8.4)+3.15(6)
a=23.94+18.90
a=42.84
Hope that helped =)
1,729 is divisible by 9
a. true
b. false
Answer:b
Step-by-step explanation:
Answer:
every number is divisible by a number. But if it has to be a whole number that has no decimals, then no.
Step-by-step explanation:
1729/9 = ~192.112
Please help me with this desmos problem
Answer: y 27 is the height
Step-by-step explanation: You plot both lines and find the intersection and just say the y value of the intersection point.
Answer:
Step-by-step explanation:
substitute x=10 in either eq. to find the value of y.
y=2x+7=2×10+7=20+7=27
y=27
In her first 20 games, Jennie served 4 aces. If she continues to serve aces at this rate, how many aces will she have after 160 games?
Answer:
32 aces
Step-by-step explanation:
4/20= x/160
once you set up this proportion you can cross multiple to get:
20x= 640
then just solve for x:
x= 32
Which other expression has the same value as (-14)-(-8)
pls help
Answer:
-14+8
Step-by-step explanation:
Two minus signs directly next to each other are equivalent to a plus sign.
Answer:
-14.8 = -112 gitu aja sudah amat jangan maen game
Please help me I will give brainliest
Answer:
60 milligrams
Step-by-step explanation:
just cross multiply! percentages are just fractions of 100. so you can say that [tex]\frac{45}{x} =\frac{75}{100}[/tex]
multiple 75 by x and 45 by 100 and you get
4500=75x
divide both sides by 75 and you get 60
3
How many solutions does the system of equations below have?
1
y = 8x +
y = 8x +
fo
7.
Answer:
one solution
no solutions
one solution
Infinitely many
solutions
Sorry I'm late, But your answer is Infinitely many solutions. Have a good day!
find the volume of a rectangle block of ice 2 feet by 3 1/2 feet by 1 1/2.
the volume of the rectangular block of ice is ( simplify your answer)
Answer:
The answer is 80.5!
Step-by-step explanation:
The reason to the answer is because volume of a cuboid is l×B×H
(Substitute the values) L = 2 , B = 3.5 , H = 11.5
2 × 3.5 × 11.5
Therefore, when we multiply these numbers we get, the answer 80.5!
I hope this answer helps!
Find X (-2x + 35 ) yd, 27yd, (4x-1)yd
Answer: 10 hope this helps^^
Step-by-step explanation: 2(27)= -2x+35+4x-1
=10 (answer)
took the quiz as well
solve the inequality 3x + 4 < 14
There is 5/6 of an apple pie left from dinner. Tomorrow, Victor plans to eat 1/6 of the pie that was left. How much of the whole pie will he eat tomorrow?
1/36
5/36
1/3
2/3
Answer:
2/3
Step-by-step explanation:
there will be 4/6 of the pie and simplify to be 2/3
FIND BE (NEED ANSWER FAST!!!)
Answer:
9
Step-by-step explanation:
jayfeather friend me
The Greatest Value of a country's paper money ever printed is 10 to the 8th power dollars. What is this amount written in standard form?
Answer: 1 × 10^8
Step-by-step explanation:
The standard form is written as:
= c × 10^n
For example if we are told to change 200 to standard form, it'll be:
200 = 2 × 10^2
Therefore, 10 to the 8th power in standard form will be:
= 1 × 10^8
I REALLY NEED HELP!!
Find the area of the composite figure
Answer:
I honestly don't know how to solve anything like this but my best guess is 135
Step-by-step explanation:
I used the area of a circle formula to find the area of the two semi-circles, and then added it to the area of the rectangle. (Once again, I really do not know xD)
Use the Distributive Property to expand 6(8x - 2y) -3.
Answer:
48x − 12y−3
Step-by-step explanation:
Distribute:
(6)(8x) + (6)(−2y) + −3
48x + −12y + −3
48x − 12y−3
Members of a lacrosse team raised $1878.50 to go to a tournament. They rented a bus for $1075.50 and budgeted $73 per player for meals. Determine the number of players the team can bring to the tournament.
Answer:
Step-by-step explanation:
11
Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree.
Answer:
AB = 4.62 m∠A = 22° m∠B = 68°
Step-by-step explanation:
Tan A = 1.7/4.3 = .39534...
m∠A = arctan .39534... ≅ 22°
m∠B = 90 - 22 = 68°
AB = [tex]\sqrt{1.7^{2} + 4.3^{2} } = \sqrt{2.89 + 18.49} = \sqrt{21.38} = 4.62[/tex]