Answer:
x= -2.25
Step-by-step explanation:
2x+3(2x+12)=18
2x+6x+36=18
8x+36=18
8x= -18
x= -9/4= -2.25
3 coins are flipped. let E be the event that at least 2 coins are heads. let F be the event that no heads are flipped. are E and F mutually exclusive? are they independent? Explain
Answer: Yes, they are mutually exclusive. You cannot have 2+ heads and 0 heads at the same time. They are not independent. The result of 2+ heads nullifies the chance that 0 heads are flipped!
evaluate 24. 5 PLS AND THANK YOU!!!
Answer:
80
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
2⁴ · 5
Step 2: Evaluate
Exponents: 16 · 5Multiplication: 80Evaluate (2/5) to the 2nd power
Answer:
.08
Step-by-step explanation: hope you get it right please give brainiest
have a good day
Answer:
4/25
Step-by-step explanation:
Calculate the initial value:
m= 5
(-3, 6)
Answer:
initial value is 21
Step-by-step explanation:
y=mx+b
6= -3(5) +b
b=21
Question 10 of 12
What is the solution to x + 8 = 19?
A. x = 11
E
B. x = 8
C. x= 16
D. x = 27
SUBMIT
Answer:
x = 11
Step-by-step explanation:
x + 8 = 19 subtract both sides by 8
x = 11
Hey there!
x + 8 = 19
SUBTRACT 8 to BOTH SIDES
x + 8 - 8 = 19 - 8
CANCEL out: 8 - 8 because it give you 0
KEEP: 19 - 8 because it give you the x-value
NEW EQUATION: x = 19 - 8
SIMPLIFY IT!
x = 11
Therefore, your answer is:
x = 11 (Option A)
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Enter the unknown value that makes this statement true:
25% of is 30.
Answer:
Ans is 120
Step-by-step explanation:
25 x 4 is a 100
therefore multiply 4 by 30 to find the 100%
or the ? value that makes the statement true
Ans is 120
Answer:
25% of 120 is 30
Step-by-step explanation:
25% = 0.25
0.25 y = 30
y= 30/0.25
y= 120
1. A rectangular room measures 12 feet by 20 feet. It is going to be covered with carpeting that sells for $8.35 per square foot.
a. What is the area of the room in square feet?
b. How much would it cost to carpet the floor?
Answer:
a). 240sqft b). $2004 (+ labor I guess)
Step-by-step explanation:
the room is rectangular, so it's area is the product of the dimensions
12feet * 20feet = 240sqft
The cost is $8.35 per sqft, so we get
240sqft * $8.35/sqft = $2004
Answer:
A: 240
B: 1,980
Step-by-step explanation:
Finding the area of a 2d rectangle WxL, So it's 12x20 is 240.
I did 8.35 times the square footage, 240, and gotten 1,980.
Can someone please help ?!?
Answer:
the answer would be D
Step-by-step explanation:
sec = 1/cos
How many ways are there to add four positive odd numbers to get a sum of 22?
there are 18 ways to add four positive numbers to get 22
Olga saves $15 from every paycheck to save up for a new game system that cost $399. Currently, she has $360 saved. Ignoring any taxes on the purchase, how many more paychecks does she have until she has enough money saved to buy the game system?
Answer:
3
Step-by-step explanation:
399-360=39
Find the area of the complex shape I WILL GIVE BRAINLIEST PLZZ HELP MEEEEEEEEEE
48 units squared
20 units squared
32 units squared
52 units squared
Answer:
48 Units squared
Step-by-step explanation:
Its so hard to explain in words
Pedro surveyed 600 of the students in his school about their favorite color. 270 students said their favorite color was red. What percentage of the surveyed students said their favorite color was red?
Answer:
45 percent
Step-by-step explanation:
270/600=.45 which equals 45 percent
Please check my answers!!!!
9514 1404 393
Answer:
linear: blue graph, Table 2, 2x-3y=7, y=-4
nonlinear: red graph, Table 1, Table 3, y=2x^2+4, y=3/x+2
Step-by-step explanation:
It is hard to check answers when you don't know the question. Apparently, there are additional features of the question that are not shown.
__
The equation of the red graph is y=(x+5)³. (nonlinear)
The equation of the blue graph is y=2x-6. (linear)
The equation of Table 1 is y=x². (nonlinear)
The equation of Table 2 is y=2x+4. (linear)
The equation of Table 3 is y=|x|. (nonlinear)
__
You have correctly classified the equations we see. We can't tell if there are more that we don't see.
_____
The tables all have sequential values of x, so the way to tell linear/non-linear is by looking at first differences in the y-values:
Table 1: 4-1 = 3; 9-4 = 5 . . . . different, so non-linear
Table 2: 8-6 =2; 10-8 = 2; others are also 2 . . . . all the same, so linear
Table 3: 1-2 = -1, 0-1 = -1, 1-0 = 1 . . . . different, so non-linear
[tex]sec^{-1}(\frac{-2}{\sqrt{3}})=?[/tex]
How do you solve this with the unit circle? I keep getting [tex]\frac{5\pi}{6}[/tex], but my textbook answer says [tex]\frac{7\pi}{6}[/tex]. Thanks in advance.
Answer:
h=21
Step-by-step explanation:
so yeah i will show you how so solve it hahah so sec -1(-2/3)yeah you know i don't really know the answer sorry bro
if $20.00 is for 12.25kg of peas ...what weight of peas can i get for $4.00
Write the next three terms of the geometric sequence 81, -27, 9, -3,...
1, -1/3, 1/9
it is divided by negative 3 or -3
To find that you need to divide the the first term with the next term
81÷-27=-3
The length of a rectangle is three feet less than twice its width. If x represents the width of the rectangle, in feet, write inequality represents the area of the rectangle that is at most 30 square feet.
Answer:
x>30.meaning that the x is greater than 30
Please helpppp
Thank you
Answer:
B
Step-by-step explanation:
X^2+9x+7=y standard to vertex form
Answer:
y = (x + 4.5)² - 13.25
Step-by-step explanation:
y = x² + 9x + 7
We need to get a perfectly squared binomial as part of the right side.
Take the '9x' term, divide it in half, square it, add and also subtract it on the right side, as shown below. That would be (4.5)² = 20.25 added and subtracted.
y = x² + 9x + 7
y = x² + 9x + 20.25 + 7 - 20.25
y = (x² + 9x + 20.25) - 13.25
y = (x + 4.5)² - 13.25
y = (x + 4.5)² - 13.25
Vertex Form is y = a(x-h)² + k, where the parabola vertex is (h, k)
So if you wrote this as y = 1(x - [-4.5] )² + (-13.25), we would see that a = 1, and h = -4.5 and k = -13.25.
Vertex = (-4.5, -13.25)
I verified on a graphing calculator that this is indeed the vertex of the parabola.
Complete the table for the given rule.
Rule: y is 3 less than x
X Y
10
8
6
Answer:
X Y
10 7
8 5
6 3
Step-by-step explanation:
Not much to explain - just put a number 3 smaller than X into column Y
The required table for the given rule can be completed as follows:
X Y
10 7
8 5
6 3
What is the linear relationship?A linear relationship is a connection that takes the shape of a straight line on a graph between two distinct variables - x and y. When displaying a linear connection using an equation, the value of y is derived from the value of x, indicating their relationship.
The rule is given in the question, as follows:
y is 3 less than x
For each value of x in the first column, the corresponding value of y in the second column can be calculated by subtracting 3 from x.
For example, if x is 10, then y is 3 less than x, which is 7 (10 - 3 = 7).
Similarly, if x is 8, then y is 5 (8 - 3 = 5), and if x is 6, then y is 3 (6 - 3 = 3).
The table for the given rule can be completed as follows:
X Y
10 7
8 5
6 3
Learn about the linear relationship here :
https://brainly.com/question/11663530
#SPJ5
Please help wrong/random answers will be reported.
Answer:
21, 1701
Step-by-step explanation:
multiply by 3 :)
After filling a gas tank the odometer read 27,8295After the next filling it read 28,1760. It took 17.5 gal to fill the tank How many miles per gallon did the driver get?
Answer:
198 mpg
Step-by-step explanation
28,1760-27,8295 = 3465 miles
3465miles/17.5gal = 198 mpg
I need some help, anyone with a explanation on how to do this any help is appreciated:)
Answer:
12.6
Step-by-step explanation:
Pythagorean theorem: a^2+b^2=c^2
you are given c & b you have to find a so
c^2-b^2=a^2
196-36=160
take the square root of 160
12.6 is the final answer :)
Estimate the sum of 46 and 32 by rounding to the nearest ten,
A. 80
0
B. 90
C. 75
0
D. 70
0
E. 85
Will someone help me with this??
Answer:
C) -1/4x+2=2x-7
Step-by-step explanation:
-1/4(4)+2=2(4)-7
-1+2=8-7
1=1
cellus
Corresponding Angles are congruent.
Which angle corresponds with 2?
446 4342
4845 44141
< [?]
Enter
Answer:
<6
Step-by-step explanation:
Corresponding angles have the same matching corner.
<6 has the same matching corner as <2. <6 and <2 are congruent.
Therefore, it can be concluded that <6 corresponds to <2.
Please give me the answer please
Answer:
1/2
Step-by-step explanation:
help plz The total cost of a shirt and a jacket was $99.34. If the price of the shirt was $7.76 less than the jacket, what was the price of the shirt? Express your answer as a simplified fraction or a decimal rounded to two places.
Answer: Shirt costs $45.79
Step-by-step explanation:
jacket- x
shirt (x-7.76)
x+x-7.76=99.34
2x - 7.76 = 99.34
2x = 107.10
x=53.55
Jacket costs 53.55 and Shirt costs 53.55-7.76= 45.79
Find the quotient and remainder 975 divided by 17
Answer:
975 / 17 = 57 R 6
Step-by-step explanation:
To get a good starting point, let's round these values to "nicer" numbers. 975 is close to 1000, and 17 is close to 20, and 1000 / 20 = 50, so let's start by looking at 17 x 50 and go from there.
There are a few ways to calculate 17 x 50, but here I'm gonna go off what we already know: 20 x 50 = 1000, and 20 - 3 = 17, so 17 x 50 = 20 x 50 - 3 x 50, or 1000 - 150, which is 850. How many more 17s can we fit from 850 to 975? Well, the difference between the two numbers is 125, so finding the quotient of 125 and 17 should be enough: 17 fits into 125 7 times, with 6 remaining.
Altogether then, 975 / 17 has a quotient of 50 + 7 = 57, and a remainder of 6.
Point C is located 8 inches from point A and 6 inches from point B. Points A and B are 2 inches apart.
Which statement is true?
A The points cannot be connected to form a triangle.
B The points can be connected to form exactly one triangle.
C The points can be connected to form exactly two triangles.
D The points can be connected to form more than two triangles.
Answer:
B
Step-by-step explanation: