Answer:
Θ = 50°
Step-by-step explanation:
Using the cofunction identity
cosx = sin(90 - x)
Given
cos40° = sin(90 - 40)° = sin50° ⇒ Θ = 50°
Answer:
Ѳ = 50
Step-by-step explanation:
Sin Ѳ = cos 40
[tex]Ѳ = \sin ^{ - 1} ( \cos(40) ) [/tex]
Simplify
[tex]Ѳ = sin^{ - 1} (0.7660444431) \\Ѳ = 50[/tex]
Question 4
Given f (20) = 5, find x if f(x) = -3x – 4
-3
-19
O 11
O 12
help
Answer:
-19
Step-by-step explanation:
[tex]f(x) = 5 , f(x) = -3x-4[/tex]
We just have to plug in 5 into f(x) and solve for y
[tex]f(5) = -3(5) - 4 \\f(5) = -15 - 4 \\f(5) = -19[/tex]
question:- why?
answer: ?
plz give the answer and i will mark you the brainliest just like that
Answer:
Make me brainliest for good luck
Step-by-step explanation:
Question 2
Write an algebraic expression for the verbal expression.
a number n less 35
Answer:
35 - n
Step-by-step explanation:
a number n = "n"
less than = "minus or -"
35 = 35
Thus the answer should be "35 - n"Pleas Mark Brainliest!!! :DHELP ASAP LIMITED TIME
Answer:
B
Step-by-step explanation:
not explaining but its B trust me
If three planes intersect then their intersection is a line.
Answer:
Always true
Step-by-step explanation:
Three Planes Intersecting in a Line, Three Parallel Planes.
Which of the following is the solution set of the given equation?
(x - 3) - 2(x + 6) = -5
A) {-10}
B) {-4}
C) {8}
Solve:
6 = 8 + 2
a =?
Answer:
4
Step-by-step explanation:
would you classify the number 200 as a perfect square, a perfect cube,both, or neither? explain
A: No, the number 200 is not a perfect square.
B: No, the number 200 is not a perfect cube.
C: Yes. the number 200 is neither.
No number times itself twice or threefold is 200 therefore I can conclude it's neither.
Answer: neither because a perfect square is number like 9 or 100 where 3^2=9 and 10^2=100 and likewise for a perfect cube. 200 is not a perfect square or perfect cube for any number
Step-by-step explanation:
10) A market has 60 cupcakes
for sale. Of those %s are
chocolate. How many are not
chocolate?
Answer:
36
Step-by-step explanation:
can u guys plz help me?
-2(x-3) < 2x - 4
Answer:
2.5 < x or 5/2 < x
Step-by-step explanation:
Start by distributing the -2 to the parenthesized numbers.
-2*x and -2*-3
You end up with -2x and 6 (negative times a negative gets positive).
-2x+6 < 2x-4
Next you need to get your variables, x, on one side. It can be either but I like addition so lets take the -2x and move it to the opposite side.
You'll need to add 2x to both sides since its a negative number.
-2x(+2x)+6 < 2x(+2x)-4
-2+2 is 0 and 2+2 is 4.
6 < 4x-4
You want to get the variable alone now so you'll want to add the 4 to the other side (because its negative you add. If it was positive you'd subtract).
6(+4) < 4x-4(+4)
6+4 is 10 and -4+4 is 0.
10 < 4x
You want to divide out the 4 from 4x because you want the variable alone. Divide 4 from both sides
10(/4) < 4x(/4)
Now depending on if you want a variable or a fraction 10/4 can be 5/2 (simplified fraction) or 2.5 (decimal). 4x/4 gives you x.
2.5 (or 5/2) < x
Hope that helps.
five multiples of 45
Answer:
45,90,135,180,225
Step-by-step explanation:
Write all the integers between the given pairs (write them in the increasing order.)
(a) 0and−7
(b) −4and4
(c) −8and−15
(d) −30and−23
-30
-23
-15
-8
-7
-4
0
4
.........
Are the lines parallel, perpendicular, or neither
Answer:
perpendicular
Step-by-step explanation:
The first equation can be written in slope-intercept form as ...
y = -1/2x - 3
In this form, we see that the slopes of the two lines are -1/2 and 2, so the product of their slopes is -1. That means the lines are perpendicular.
How do I do number 2 ? Someone please helpp w
Answer:
yes it is a function
Step-by-step explanation:
You have to take the numbers and see if any of them are the same in the X column if their are some of the same numbers you only write the number once. than you connect the numbers to the given output. If any numbers have 2 outputs it is not a function.
How can you use unit rates to solve pricing problems?
Answer:
a ratio is a comparison of two numbers or measurements
the objects being compared are called the terms of the ratio.
if the tow terms are different units this is called a rate.
example:
David covers 600 miles in 8 hours and John covers 380 miles in 5 hours. Who is driving faster ?
solution:
Distance covered by David in 1 hour is
= 600 / 8
= 75 miles per hour
Distance covered by John in 1 hour is
= 380 / 5
= 76 miles per hour
When we compare the above unit rates (Distance covered in 1 hour), John is driving faster than David.
We can use unit rates to solve pricing problems because we solve for price of one of that item.
For example, David bought 5 pounds of peanuts for $10, how much does it cost for one pound?
10 / 5 = $2 per pound
The $2 is the unit rate and we use to find if David buys more then 10 pounds.
Best of Luck!
The temperature dropped 5 °F every hour for 5 hours. What was the total number of degrees the temperature changed in the 5 hours?
Answer:
25
Step-by-step explanation:
you just multiple 5 times 5
Answer:
it changed by 25 degrees
Step-by-step explanation:
for every hour it goes down by 5 and you have five hours so its
5+5+5+5+5
so basically its 5×5 and that equals 25
Why is 1 + (−5) equal to −4? PLEASE HELP
Answer:
Since the -5 is a bigger number than 1 you would keep the negative and carry it to the -4.
Step-by-step explanation:
jada applies two transformations to a polygon in the coordinate plane One of the translations is a translation and the pother is a reflection what information does jada need to provide to communicate the transformation she has used?
Answer:
What other information does Jada need to communicate about this sequence of transformations
Step-by-step explanation:
What is the slope of the line below? PLS HELP
Answer:
B, negative
Step-by-step explanation:
please help!
what is the slope of the line shown below?
Working on Scientific Notations please help
Answer: The answer is scientific notation
Step-by-step explanation:
4(3x - 6) = 6(3x + 5)
please help my asap
Answer:
-9
Step-by-step explanation:
4(3x-6)-6(3x+5)
12x-24-18x-30
-6x-54
-6x=54
x= -9
Answer:
x=-9
Step-by-step explanation:
I used this website called symbolab
Rewrite as a simplified fraction. 0.8 95
Answer:
[tex] \frac{179}{200} [/tex]
Hope this is correct and helpful
HAVE A GOOD DAY!
15. If gasoline costs $4.02 per gallon, your tank holds 13 gallons, and your car averages 26 miles per gallon,
a) If your tank is full, how far can you drive before you run out of gas?
b) If your tank were empty, how much will it cost to fill up your tank?
Answer: a) 338 miles
b) $52.26
Step-by-step explanation: To get the amount of miles that your car can drive before running out of gas, you just multiply how many gallons you have by how many miles each gallon lasts. Then, to get the cost of all the gas, you multiply the cost of the gas by how many gallons you need.
Solve the absolute value equation: |2x - 12 | = -4x
Answer:
x= -6
Step-by-step explanation:
I think this is right?
Answer: 2
|2x-12|= -4x
2x-12= -4x
-12= -6x
2=x
x=2
Solve for
2/x+1 = 3/x-5
Answer:
x=16
Step-by-step explanation:
I hope this helped
Answer:
x= 1/6
Step-by-step explanation:
1) Add the same term to both sides of the equation
2/x+1=3/x-5
2/x+1-1=3/x-5-1
2) Simplify-Add the numbers
2/x=3/x-6
3) Multiply all terms by the same value to eliminate fraction denominators
4) Simplify
5) Add the same term to both sides of the equation
6) Simplify
7) Divide both sides of the equation by the same term
8) Simplify
1/6=x
I hope this helps!
What is the value of -2/5 divided by 3/4
Answer:
[tex]-\frac{8}{15}[/tex]
Step-by-step explanation:
To divide a fraction by another fraction, you flip the second fraction and also change the divide sign to a multiply sign.
[tex]-\frac{2}{5}\div \frac{3}{4}=-\frac{2}{5}\times \frac{4}{3}[/tex]
Multiply:
[tex]-\frac{2\times \:4}{5\times \:3}[/tex]
[tex]-\frac{8}{15}[/tex]
Convert 49°F to degrees Celsius.
If necessary, round your answer to the nearest tenth of a degree
Here are the formulas.
Answer:
9.44444
Step-by-step explanation:
geometry help plspls pls pls pls pls
Answer:
x = - 2.5, 1
Step-by-step explanation:
In the given figure, JM and JK are the tangents drawn from the external point J to the [tex] \odot[/tex] L, Points K and M are points of tangency.
Since, tangents drawn from external point to a circle are congruent.
[tex]\therefore JM = JK\\\therefore 2x^2 +3x - 2 = 3\\\therefore 2x^2 +3x - 2 -3=0\\\therefore 2x^2 +3x - 5 =0\\\therefore 2x^2 - 2x + 5x - 5 =0\\\therefore 2x(x - 1) + 5(x - 1) =0\\\therefore (x - 1) (2x+ 5) =0\\\therefore x - 1 = 0\: or \: 2x + 5= 0\\\therefore x = 1\: or \:2x = - 5\\\therefore x = 1\: or \:x = - 2.5\\\huge \purple {\boxed {\therefore x = \{-2.5,\: 1\}}}[/tex]
Im really bad at math
Answer:
2.5
Step-by-step explanation:
