Answer:
60°
Step-by-step explanation:
Complementary angles add to 90°, so if x is double its complement, then x + (1/2)x = 90. Doing the algebra gets you to x = 60. You know that answer is correct because 60 is double 30, which is its complement.
I need helppppppppp!!!!
logbase2 ²/log base 2 ⁴
Answer:
Please use LaTeX I Assure you it is great
Step-by-step explanation:
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]\frac{log 2^{2} }{log 2^{4} } =\frac{2 log ~2}{4 log~2} =\frac{2}{4} =\frac{1}{2}[/tex]
Plz help it’s due tonight!!!!
Answer:
Sorry I can’t read it wish I could help man have a good day and be safe, wear a mask in public, sanit- jk! Just be kind to others and be safe love ya!
Step-by-step explanation:
Urgent !!!
Select the correct answer.
The domain, range, and x-intercept of a one-to-one function are shown.
Yoona gives guitar lessons for 70$ per session. She gives a 10% discount to students who come to her studio for her lessons.
How much does one of yoonas guitar lessons cost after the discount?
Answer:
$63
Step-by-step explanation:
70 x 10% = 7
70 - 7 = 63
Answer:
63
Step-by-step explanation:
Tom has a part-time job. On Wednesday, Tom earned $20.50, and on Thursday he earned $36.21. On Friday, Tom earned twice as much as he did on Wednesday. How much did Tom earn altogether for the three days?
Show or explain your work.
(HELP ME PLEASE) In a triangle that two of its sides are worth 8 cm and 10 cm, the possible values of the third side are:
Answer:
I'm not sure....
10-8 = 2
lowest point
10+8 = 18
highest point
so the possible values of the third side are:-
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
I'm not sure this is what you are looking for but this is my answer....
i hope this helps...
have a great day ahead :)
One spring, a group of students measured rainfall totals at their school. chart shows how many inches of rain the students measured each month. How many more inchés did it rain in May than in April? MONTH RAINFALL March April May 1.7 2.6 3.8
Answer:
1.2
Step-by-step explanation:
apex leaning and I don't know why they want me to write 20 characters long or something like that before posting this
I please need help finding the value of x.
Answer: 30 degrees
Step-by-step explanation: A triangle has 180 degrees.
70 plus 80 equals 150 degrees.
180 minus 150 equals 30.
Answer:
x = 6 , 50°
Step-by-step explanation:
(8x + 2)° + 70° + 60° = 180°
8x + 2 + 130 = 180
8x = 180 - 132
8x = 48
x = 6
Measure of missing angle 8(6) + 2 = 50°
PLEASE HELP!!I GIVE BRAINLIEST
Answer:
Im pretty sure the first two are no..that's it
Answer:
A: No
B: Yes
C: Yes
D: No
Step-by-step explanation:
The Sony 55 inch flat screen TV was 45% off at Best Buy. If the TV originally cost $1350.00, how much
was the discount?
Answer: 742.5
Step-by-step explanation: 45% off of 1350= 742.5
Answer:
$607.50
Step-by-step explanation:
if you take 1350.00and multiply by 45% you will get $607.50
An exam worth 388 points contains 65 questions. Some questions are worth 4 points and the others are worth 8 points. How many 4 point questions are on the test?
Answer:
33 questions.
Step-by-step explanation:
Let x = 4 points questions.
Let y = 8 points questions.
Translating the word problem into an algebraic equation;
For the total number of questions;
[tex] x + y = 65[/tex] .........equation 1
For the total number of points;
[tex] 4x + 8y = 388[/tex] ..........equation 2
Given the following data;
Total number of questions = 65
Total number of points = 333
Solving the linear equation by using the substitution method;
Making x the subject in equation 1:
[tex] x = 65 - y[/tex] .......equation 3
Substituting "x" into equation 2;
[tex] 4(65 - y) + 8y = 388[/tex]
Simplifying the equation, we have;
[tex] 260 - 4y + 8y = 388[/tex]
[tex] 260 + 4y = 388[/tex]
Rearranging the equation, we have;
[tex] 4y = 388 - 260[/tex]
[tex] 4y = 128[/tex]
[tex] y = \frac {128}{4} [/tex]
y = 32 (For the 8 points question).
Substituting "y" into equation 3;
[tex] x = 65 - 32[/tex]
x = 33 (For the 4 points question).
Therefore, the number of 4 point questions on the test are 33 questions.
A plant’s growth rate is observed and recorded for a science experiment. The observer notes that on week 2, the plant is 4 inches high. On week 5, the plant is 13 inches high.
Part A: Write an equation in point-slope form that could model the relationship between the week, x, and the height of the plant, y.
Answer:
y - 13 = 3(x - 5)
Step-by-step explanation:
x represents week and y represents inches. Week 2 and week 5 = 2 to 5 = three number difference. The inches which is 4 and 13 have a 9 inched difference. So like I said week represents x and y represent inches so now u have to find the slope, which would be y/x so replace it with the numbers we got so it would now be 9/3. The simplified version would be 3. So the slope is 3.
Point-slope equation: y-y^1=m(x-x^1), y^1 and x^1 are just some random points on the graph, but since we don't have a graph we can use either week 2 and 4 inches or week 5 and 13 inches because if this were a graph, those would be existing points on the graph. And m is the slope so just replace m with 3. We'll use 5 and 13 so: y - 13 = 3(x - 5)
side note: kinda took a long time sorry haha, I had to refresh my knowledge on point-slope equations since it's been a long time since i learned it.
ty and his 3 brothers share a pizza equally what is the fraction
Answer:
If they all get an equal slice, 1/4.
Step-by-step explanation:
En una pasteleria realizan 15 posteles cada 30 min
Cuantas pasters se haran en 4 horas con 15 min?
Answer:
60
Step-by-step explanation:
había multiplicado 4 y 15 espero que esto ayude
5. Which number is irrational? 3 (1) V16 (2) V12 (3) (4) 0.50
Answer:
(3)√12
Step-by-step explanation:
The other numbers are not continuous
What is the next term of the geometric sequence?
-16/5 ,8, -20,
Answer:
common ratio(r)= 8÷(-16/5)= -20/8= -2.5 or -5/2
Gn=G1r^(n-1)
the next term will be the 4th term, means n=4
G4= (-16/5)((-5/2)^(4-1)
=(-16/5)(-125/8)
=50
Therefore the next term will be 4th term(G4)=50.
The next term of Sequence is 50.
What is Geometric Sequence?A geometric sequence is a set of integers that follows a pattern in which the following term is determined by multiplying the previous one by a factor known as the common ratio, or r.
An example of a Geometric sequence is 2, 4, 8, 16, 32, 64, …, where the common ratio is 2.
Given:
-16/5 ,8, -20,
First, common ratio(r) = 8÷ (-16/5)
= -20/8
= -2.5 or -5/2
Now,[tex]G_n=G_1r^{(n-1)[/tex] and for n=4
[tex]G_4[/tex] = (-16/5) [tex](-5/2)^{(4-1)[/tex]
=(-16/5)(-125/8)
=50
Hence, the next term is 50.
Learn more about Geometric Sequence here:
https://brainly.com/question/11266123
#SPJ2
Mr. Hudson is a car salesman. He makes a fixed amount of $1,000 a month and receives $250 for every car that he sells. Which inequality shows the number of cars, n, Mr. Hudson must sell in a month to earn a minimum of $6,000?
Answer:
250n + 1,000 ≥ 6,000
Step-by-step explanation:
You know that he makes 250 dollars per car her sells and he automatically makes 1000 per month. n is representing the number of cars he sold and that is multiplied by the worth of each car. If he needs a MINIMUM of 6000 dollars. he must make 6000 dollars or more which can also be shown as ≥. Hope this helped!
HELP PLS
What are the domain and range of the exponential decay function?
A) Domain: All real numbers; Range: All real numbers
B) Domain: x< 3; Range: y> 3
C) Domain: All real numbers; Range: y> 3
D) Domain: x > 3; Range: All real numbers
Answer:
Thus the domain is the real numbers and the range is y>3.
Answer: Option C)
Step-by-step explanation:
Domain and Range of Functions
To determine the domain and range of a function given on a graph, we use the vertical and horizontal line methods respectively.
The domain consists of all the values of x for which the function exists. We are told that the function is an exponential decay. Exponential functions without specified restrictions have a domain of all the real numbers.
Imagine a vertical line moving from minus infinite x to plus infinite. The line would always cross the graph at one point, thus the domain is all the real numbers.
Now for the range, imagine a horizontal line coming from y minus infinite. It won't get in contact with the graph until it approaches y=3. Once it goes up y=3, the line touches the graph in one point up to infinity y. The range is y>3.
Thus the domain is the real numbers and the range is y>3.
Answer: Option C)
Please help me!!! I will mark.
Answer:
the answer is the first one!
because if x=-3 we know that |x|=|-3|=3
15 people working 5 hours per day can make 30 units of a product in 10 days. Assuming all other factors remain constant and people of the same efficiency are used to make the same products, in how many days can 10 people make 10 units of the product if each of them works 10 hours per day?
Answer:
I don't really understand it very well
It will take 10 people working 10 hours per day about 2.5 days to make 10 units of the product.
From the statement of the question; 15 people working 5 hours per day can make 30 units of a product in 10 days. Hence, the number of units that can be made in a day is;
Number of units per day = (15*5*10)/30
= 25 units/day
Now; if 10 people make 10 units, working 10 hours per day, it will take them x number of days.
x = (25*10)/10*10
x = 2.5 days
Learn more: https://brainly.com/question/22873736
On a rainy day the amount of rain
in a rain gauge increases by 2
inches over a 24-hour period. How
much will the amount of rain in the
gauge increase by over an 8 day
period?
------------------------------------------------
During a 12-hour period, the
temperature dropped 48°. How
many degrees did the temperature
drop each hour?
Answer:
Part 1) [tex]16[/tex] inches of rain
Part 2) [tex]4^{\circ}[/tex] per hour
Step-by-step explanation:
Rainy day scenario:
From the information given, the rain in the rain gauge increases by 2 inches per day (24 hours = 1 day). The increase of rain over an 8 day period will be [tex]2\times8=16[/tex] inches of rain.
Temperature scenario:
From the information given, the temperature drops [tex]48^{\circ} /12hours[/tex]. To find how many degrees the temperature dropped per hour:
[tex]48^{\circ}\div12/12hours\div12 = 4^{\circ}/1hour[/tex]
∴ The temperature drops [tex]4^{\circ}[/tex] per hour.
Hope this helps :)
Starting from home john rides his bike to school and then to the library. How far, in kilometers does John ride his bike? home (1 -3) school (-1, 2) library (3, 2)
Answer:
9.385 km
Step-by-step explanation:
Given the points :
home (1 -3) school (-1, 2) library (3, 2)
Distance between Home and school :
Distance = √(x2 - x1)² + (y2 - y1)²
Home = (1, - 3) ; School = (-1, 2)
x1 = 1 ; y1 = - 3 ; x2 = - 1 ; y2 = 2
Distance = √(-1 - 1)² + (2 - (-3))²
Distance = √-2² + 5²
Distance = √4 + 25
= 5.385 km
From school to library :
School = (-1, 2) ; library (3, 2)
x1 = - 1 ; y1 = 2 ; x2 = 3 ; y2 = 2
Distance = √(x2 - x1)² + (y2 - y1)²
Distance = √(3 - (-1))² + (2 - 2)²
Distance = √4² + 0²
Distance = √16 + 0
Distance = √16
Distance = 4 km
Total distance in kilometers from home to library :
(5.385 + 4) km = 9.385km
Solve for x and y by elimination 3x+y=-1
Answer:
we need 2 equations to solve by elimination
Answer:
Step-by-step explanation:
for x
3x + y = -1
subtract 3x from both sides
y = -3x - 1
answer
for y
3x + y = -1
subtract y on from both sides
3x = -y -1
divide by 3
x = -1/2y - 1/3
answer
can someone help with this one too?
Answer:
the answer is C
Step-by-step explanation:
3x + 5 = 2x - 1 what does x=
Answer:
-6
Step-by-step explanation:
You want to subtract the 2x from both sides, leaving you with x+5= -1 and then you want to subtract the 5 from both sides which gets you to your final answer of x= -6
Answer:
x = -6
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASAlgebra I
Equality PropertiesStep-by-step explanation:
Step 1: Define equation
3x + 5 = 2x - 1
Step 2: Solve for x
Subtract 2x on both sides: x + 5 = -1Subtract 5 on both sides: x = -6Step 3: Check
Plug in x to verify it's a solution.
Substitute: 3(-6) + 5 = 2(-6) - 1Multiply: -18 + 5 = -12 - 1Add/Subtract: -13 = -13There are 30 855 oranges harvested for sale, 6555 were sold on Monday, 4225
were sold on Tuesday and 7 295 were sold on Wednesday. What is the total
number of oranges sold from Monday to Wednesday?
Answer:
18,075
Step-by-step explanation:
6555+4225+7295=18,075
2x+3y = 17
2y + z = 1
5x +10z = 25
Find x
Answer:
x = 7
Step-by-step explanation:
Given the equations
2x + 3y = 17 → (1)
2y + z = 1 → (2)
5x + 10z = 25 → (3)
Rearrange (2) expressing z in terms of y
z = 1 - 2y
Substitute z = 1 - 2y into (3)
5x + 10(1 - 2y) = 25
5x + 10 - 20y = 25 ( subtract 10 from both sides )
5x - 20y = 15 → (4)
Multiply (1) by 20 and (4) by 3, then add to eliminate the y- term
40x + 60y = 340 → (5)
15x - 60y = 45 → (6)
Add (5) and (6) term by term to eliminate y, that is
55x = 385 ( divide both sides by 55 )
x = 7
Answer:
[tex]x = 7[/tex]
Step-by-step explanation:
From the equation [tex]2y + z = 1[/tex] , we can separate [tex]z[/tex] so that [tex]z = 1-2y[/tex].
The equation [tex]5x+10z = 25[/tex] can then be turned into:
[tex]5x+10(1-2y) = 25[/tex]
[tex]5x+10-20y = 25[/tex]
[tex]5x -20y = 15[/tex]
[tex]x-4y = 3[/tex] (divide by [tex]5[/tex] on both sides)
We can now use elimination to solve for one of the variable:
[tex]2(x-4y) = 2\times3[/tex] (times 2 to get [tex]2x[/tex] for elimination)
[tex]2x-8y=6[/tex]
[tex]2x+3y-(2x-8y) = 17-6[/tex]
[tex]11y = 11[/tex]
[tex]y = 1[/tex]
Now, we can use substitution to solve for [tex]x[/tex]:
[tex]2x+3y = 17[/tex]
[tex]2x+3 = 17[/tex]
[tex]x = 7[/tex]
Hope this helps :)
Which chemical equation best represents the process of photosynthesis? BRAINLIEST IF YOU ANSWER THIS CORRECT!!!!
Answer:
Light + carbon dioxide → glucose + oxygen.
Step-by-step explanation:
A is the right one.
...
.
y + 4 = 14(x-12), determine the slope and the y-intercept.
Answer:
Step-by-step explanation:
y + 4 = 14(x - 12)
y + 4 = 14x - 168
y = 14x - 168 - 4
y = 14x - 172