Step-by-step explanation:
66x-20x=-23-8
46x=-31
x=-31/46
what is 3876153 x 46 =?????????
Answer:
178,303,038
Step-by-step explanation:
Multiply it
Or put it into a calculator
PLEASE HELP ASAP 30 POINTS!!! WILL GIVE BRAINLIEST!!
1. In the first step of proof, the left-handed side of the following identity is factored. Which fundamental identity is used in the second step of the proof?
2. Simplify the expression. csc^2x-1/1+sinx
1. The factoring step is
sin²θ - cos²θ sin²θ = sin²θ (1 - cos²θ)
Then the Pythagorean identity is invoked:
cos²θ + sin²θ = 1 → 1 - cos²θ = sin²θ
so that
sin²θ - cos²θ sin²θ = sin²θ sin²θ = sin⁴θ
(third option)
2. Recall that a ² - b ² = (a - b) (a + b). The numerator here is such a difference of squares:
csc²x - 1 = (cscx - 1) (cscx + 1)
Then
(csc²x - 1) / (1 + sinx) = ((cscx - 1) (cscx + 1)) / (1 + sinx)
Recall that cscx = 1/sinx, so rewrite this as
… = ((1/sinx - 1) (1/sinx + 1)) / (1 + sinx)
In the numerator, pull out a factor of 1/sinx from both terms:
… = (1/sinx (1 - sinx) × 1/sinx (1 + sinx)) / (1 + sinx)
… = ((1 - sinx) (1 + sinx)) / (sin²x (1 + sinx))
Cancel the common factor of 1 + sinx :
… = (1 - sinx) / sin²x
Expand the fraction and rewrite sin in terms of csc :
… = 1/sin²x - sinx/sin²x
… = 1/sin²x - 1/sinx
… = csc²x - cscx
Factor out cscx to get the second option,
… = cscx (cscx - 1)
In an inequality, -2.5 is the lesser number. What is the position of the other number on the horizontal number line in relation to -2.5?
Answer:
to the right
.............
Answer:The other number is located on the right of -2.5 on the horizontal number line.
Step-by-step explanation: EDMENTUM PLATO
On a map drawn to scale, 5 cm represents 30 kilometers. If a line a the same map that connects 2 cities is 7 cm long, what is the distance between the 2 cities?
Answer:
42
Step-by-step explanation:
You can use proportions to solve this problem.
[tex]\frac{5cm}{30km}[/tex]=[tex]\frac{7cm}{xkm}[/tex]
Now just cross multiply.
5cm*Xkm=7cm*30km
you can simplify the cm and km since its multipying.
5x=210
x=42
A cell phone is on sale at $35
more than half of the regular
price. The sale price is $140.
Determine the regular price of the
cell phone.
Answer: v=210
Step-by-step explanation:
How do I solve this? i don't know how to set it up.
Answer:
yes
Step-by-step explanation:
Answer:
31.5
Step-by-step explanation:
First we want to find what side NP is equal to. To do that we divide 4 by 12
12/4=3 so side mp=3
next we want to find the scale factor of the rectangles. to do that we divide 4 from 9
9/4=2.25
next we want to find what side st is equal too
to do that we multiply 3 by 2.25
3x2.25=6.75
finally we want to find the perimeter and to do that we do 2(6.75)+2(9)
2(6.75)+2(9)=31.5 so the perimeter of rectangle RSTU is 31.5
hope this helps :)
ANSWER ASAP DUE TODAY
Find the measure of the marked acute angle to the nearest degree.
A) 25
B) 30
C) 120
D) 60
Answer:
B) 30
Step-by-step explanation:
An acute angle is an angle that is more than 0° but less than 90°. Common examples of acute angles include: 15°, 30°, 45°, 60°, etc.
Brainlist Pls!
Answer:
B
Step-by-step explanation:
What is the surface area?
Answer:
1/2×4×2×6+8×5×3=144cm²
Important please help me
What is the volume of the shaded portion of the
composite figure? Express your answer in terms of A.
O 519[pie] units 3
O 681[pie] units 3
O (600[pie] - 81) units
O (600 – 81[pie]) units
Answer:
the third one is the answer
.
Evaluate ƒ(x) = 3x + 8 for x = 1.
3
5
11
–11
Answer:
11
Step-by-step explanation:
Replace the variable xx with −1-1 in the expression.
f(−1)=−3⋅−1+8f(-1)=-3⋅-1+8
Simplify the result.
Tap for fewer steps...
Multiply −3-3 by −1-1.
f(−1)=3+8f(-1)=3+8
Add 33 and 88.
f(−1)=11f(-1)=11
The final answer is 1111.
=11
I want brainless pleased
3(x+y)
plz help plz if yk the answer
Answer:
3x + 3y
Step-by-step explanation:
all you have to do is times 3 and x and then times 3 and y. its pretty simple
a) − 5 ( 6 n + 6 ) ≤ 30
b) 8 v − 4 ( v − 8 ) > 8
Answer:
a) n ≥ -2
b) v > -6
Step-by-step explanation:
You did not state what you would like us to do with these. I will assume simplify.
a)
− 5 ( 6 n + 6 ) ≤ 30 first, distribute -5
-30 n + -30 ≤ 30 now, add 30 to both sides so we may isolate n our variable
-30 n ≤ 60 now, divide -30 on both sides so we may isolate n completely. When we do this, the sign changes direction
n ≥ -2
b)
8 v − 4 ( v − 8 ) > 8 first, distribute -4 (note: two negatives equal a positive)
8 v - 4v + 32 > 8 now, simplify
4v + 32 > 8 now, subtract 32 from both sides
4v > -24 now, divide both sides by 4 to isolate v
4v > -24
v > -6
Hope this helps! Please make brainliest <3
The people of Bridgetown wanted to build a bridge across a nearby river. Since they were poor swimmers, their master Trigonomos agreed to measure the width of the river without actually crossing it. Trigonomos spotted a tree across the river and marked the spot directly across from it. Then he walked to another point 151515 meters down the river and found that the angle between his side of the river and the line connecting him to the tree was 76^\circ76 ∘ 76, degrees. What is the width of the river?
Answer:
60.16 m
Step-by-step explanation:
Let w = width of river
Using trigonometry :
The width, w of the river is can be calculated thus :
Tan θ = opposite / Adjacent
Tan 76 = w / 15
4.0107809 = w / 15
w = 15 * 4.0107809
w = 60.1617 m
Hence, width of the river is 60.16 m
If I know at term 5 there are 7 dots and the pattern is tripling, how many dots are there at term 8?
Answer:
35or21?
Step-by-step explanation:
7×5 is 35 because 7 is tripling sorry if this is worng
How would you use math outside of school?
What do you mean? Like what do you mean doing math outside?
In the diagram shown, CD is the image of AB after a reflection across line EF . Which of the following pairs of segments do not have to be the same length.
(1) AB and CD
(2) BF and EF
(3) AE and CE
(4) BF and DF
Tesfa is x years old. his father is 4 times as old as Tesfa. Her mother is 7 years younger than his father. If their three ages add up to 101 years, how old is Tesfa?
tesfa = x
dad = 4x
mom= 4x-1
x+4x+4x-1=101
9x+1=101
9x=100
100/9= 11.1
How many 1/9s are in 30?
Answer:
3,34
Step-by-step explanation:
mark me please thanks
How do i solve for x?
a^2 + b^2 =c^2
so to find your answer you do,
16.5^2 - 9.2^2= b^2
key- ^2 is squared (to the power of two) hope this helps x
Answer:
Divide 16.5 squared by 19.2 squared=368.64/272.25
Step-by-step explanation:
find the midpoint between 2 and 179
find the marked angles . Some construction may be necessary
Step-by-step explanation:
126 / 2 = 63 because the circular angle is 1/2 of the center angle
What are the domain and range of this function f(x)=2(3^x)?
Answer:f
f
(
0
)
=
0
2
−
3
=
−
3
Step-by-step explanation:
Find the value of each variable. Write your answers in simplest radical form.
Answer:
Step-by-step explanation:
Practice A. 7.4. For use with pages 457-464. Find the value of x. Write your answer in simplest radical form. 2. هل. 45°457 ... Find the value of each variable.
if the cost of 1 pen is 15.75, find the cost of 7 pens
Answer:
110.25
Step-by-step explanation:
Cost of 1 pen = 15.75
Cost of 7 pens = 15.75 × 7 = 110.25
Answer:
$110.25
Step-by-step explanation:
1 pen = $15.75
7 pens x $15.75 = $110.25
(this pen is expensive t.f)
Help!!!!!!!
Randy's circular garden has a radius of 4 feet. He wants to put a fence around the entire garden.
How much fencing will he need?
(a)
A 16 feet of fencing
B 20.4 feet of fencing
© 25.12 feet of fencing
D 37.16 feet of fencing
<
(b)
If fencing material costs $0.75 per foot, how much will it cost Randy to build the fence?
$
Answer:
C) 25.12 feet and $18.84
Step-by-step explanation:
C = 2(pi)(r)
Multiply feet by cost per foot
Answer:
(a)25.12 (b)$18.84
Step-by-step explanation:
(a) The circumference or perimeter of a circle is [tex]2\pi r[/tex]. Since we know that the radius of the garden is 4 we find that the circumference of the garden is [tex]8\pi[/tex], but we can round [tex]\pi[/tex] to 3.14, which gives us C 25.12 feet of fencing.
(b) We can plug in the circumference of the circle which we found in the first question into the equation [tex]circumference\times \0.75[/tex] which gives us [tex]25.12\times \0.75[/tex] or $18.84.
mencioné tres aparatos tecnológicos que hacen su diseño o utilicen para su fun
cionamiento ruedas de fricción
Someone please help I want to double check PLEASEEEEE HELLPPPP
Answer:
correct
Step-by-step explanation:
1. There are 6 feet of ribbon in a roll. Samantha uses 3/4 foot pieces of ribbon to decorate gifts. How
many gifts can she decorate with one roll of ribbon?
Write an equation (with solution) to represent
this problem
Answer: 8
Step-by-step explanation:
take 72 inches and divide it by 9 inches and you will have the answer
★write the pair of integer in which multiplication is -45 and difference is 12.
plz answer fast and proper answer
I will make him / her as brainliest and I will thank answer also
Answer:
(3 and 15)
Step-by-step explanation:
If the product of both of these two numbers needs to be a negative 45 then there are no pair of integers that comply with both requirements.
If the multiplication in the question is wrong and it is a positive 45 then the pair of integers that would comply with these requirements would be (3 and 15). Multiplying this pair together would give you 45 and the difference between them is also 12 meaning it complies with both requirements that were asked for in the question.
I really need help with this question I’m taking a test it’s urgent !!
Answer:
EF = 10
Step-by-step explanation:
QUICK
9/15 = 6/x
x=10