Check if x=-1 is a solution to x3 + 3x^2 = x+3. Which statement do you get?
A. 1=1
B. 0=0
C. 4= 4
D. 2 = 2
Answer:
D. 2 = 2
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
x³ + 3x² = x + 3
x = -1
Step 2: Check
Substitute in x: (-1)³ + 3(-1)² = -1 + 3Evaluate exponents: -1 + 3(1) = -1 + 3Multiply: -1 + 3 = -1 + 3Add: 2 = 211x + 2 = 2x -7
Please explain how you did the work and how you got your answer
please help i suck at math lol; what is the slope of the line that passes through the points (-12,-4) and (-16,4)
Answer:
the slope = -2
Answer:
-2
Step-by-step explanation:
What is the volume of the right rectangular prism?
O A. 20 cubic centimeters
O B. 60 cubic centimeters
O C. 128 cubic centimeters
O D. 168 cubic centimeters
O E. 240 cubic centimeters
Answer:
please the answer is 240 cubic centimeters
what is the answer here??
Answer:
$225
Step-by-step explanation:
if 1% of 1700 is 17, then multiply 17 by 15, which i 255. so you spent $225 on tuition
Find the area of a rectangular with dimensions of 9yd and 2yd
Answer:
[tex]18yd^{2}[/tex]
Step-by-step explanation:
Area = length * width
Area = 9 * 2
Therefore, area is [tex]18yd^{2}[/tex]
Answer:
C
Step-by-step explanation:
A=wl
A=2yd*9yd
A=18[tex]yd^{2}[/tex]
Lexie is arranging 3 different books in a row on a shelf. Create a sample space for the arrangement of a biography (B), a mystery story (M), and a comic book
Answer:
d m c
d c m
m d c
m c d
c d m
c m d
6 ways
Step-by-step explanation:
a boat travels Upstream from city a to City B they are 36 miles apart for Speed of the boat in still water is 16 miles per hour the average speed of the stream is 4 mile per hour if the boat is half way up from City a to City B how long will it take to complete this trip
Answer: 2.25
Step-by-step explanation:
Solve the system by substitution. y = -7x + 4 10x – 10y = 40
Answer:
point form
(1,-3)
equation form
x=1 y= -3
Step-by-step explanation:
The diameter of a circle is 12 cm. Find the circumference to the nearest tenth
Answer:
Step-by-step explanation:
38 or 37.7 when not rounded
hope this helps
pls help. this is also math if you can help tysm
Answer:
a,d,e,f
Step-by-step explanation:
Trust me
what is the answer to this question 600-9484
Hello~
The answer is
-8884
Brainliest please!
Ary~
Step-by-step explanation:
[tex]600 - 9484 \\ = - 8884[/tex]
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
How many milliliters are equal to 7 liters?
Answer:
7000
Step-by-step explanation:
Which equation can be formulated from this problem situation? Two angles of a triangle measure 60 and 30 degrees. What is n, the number of degrees in the third angle?
A.(60 + 30) - n = 180
B.(60 + 30) + 180 = n
C.(60 + 30) - 180 = n
D.180 - (60 + 30) = n
Answer:
D.
Step-by-step explanation:
Question 9 (3 points)
Which practice was not a result of scarcity, or shortage of resources, in Arkansas
during World War II?
(A)victory gardens
(B)meat rations
(C)scrap-metal drives
(D)bauxite mining
Answer: D) Bauxite mining
I did the test:) hope this helps
Just need a lil help kind of stucc .
Answer:
Scale Factor
Step-by-step explanation:
Sorry if im wrong. I just kinda tried :p
The length of a rectangle is 1 meter less than twice the width. Find the dimensions if the area is 45 square meters.
Answer:
Width = 5
Length = 9
Step-by-step explanation:
Qué número multiplicado por – 10 da 90 DOY CORONA CHIQUILLOS CORAZON Y 5 ESTRELLAS!
MULTIPLE CHOICE
A dog show has 6 small dogs, 12 medium-sized dogs, and 6 large
dogs. What is the probability that a dog chosen at random is a
small dog?
Answer: the probability that a small dog was chosen is 1/4
Step-by-step explanation:
Two yellow marbles, three pink marbles and five blue marbles are in a bag, two marbles are randomly drawn, what is the probability of drawing two yellow marbles if the first one is not placed back into the bag before the second draw?
Answer:
1/45
Step-by-step explanation:
P(Y,Y) = 2/10 x 1/9
= 1/45
the price of an item been reduced by 65% the original price was $63
Answer:
$22.05
Step-by-step explanation:
65% x $63 = $40.95
$63 - $40.95 = $22.05
An apple-juice container has a tiny hole in it, so it is slowly leaking. If the container leaks three
ounces every 19 minutes, how long will it take for the 16 ounces of juice in the container to leak
out? Write a proportional equation and solve with J.R.'s strategy of using a Giant One. 3 id
14
Answer:
101.33333 minutes
Step-by-step explanation:
Given :
Leakage rate = 3 ounces per 19 minutes
Time it'll take for 16 ounces of juice in the container to leak out
The leakage rate on ounce per minute :
3 ounces / 19 minutes = 0.1578947 ounce per min
1f 0.1578947 ounces leak out in 1 minutes
16 ounces will leak out in x minutes
Hence ;
0.1578947x = 16 ounces
x = 16 / 0.1578947
x = 101.33335 minutes
OR :
3 ounces = 19 minutes
1 ounce = (19 / 3) = 6.333333 minutes
16 ounces = (15 + 1) ounce
15 ounces = 3 * 5
Hence, 15 ounces will leak in (19 minutes * 5) = 95 minutes
1 ounce = 6.33333 minutes
Hence,
16 ounces will leak in (95 minutes + 6.33333 ounces) = 101.33333 minutes
HENCE, All 16 ounces will leak out in 101.33333 minutes
Suppose that g(x) = f(x) + 6. Which statement best compares the graph of g(x) with the graph of f(x)?
The graph of g(x) is the graph of f(x) shifted 6
A.units to the left
B.units up
C.units to the right
D.units down
Answer:
c. units to the right
Step-by-step explanation:
it would be units to the right because it's +6 meaning it moves to the right.
Answer:
6 units upwards
Step-by-step explanation:
please help im reallyyyy desperate
NO LINKS OR FILES
Answer:
(2, -3), (3, -3)
Step-by-step explanation:
y = x^2 - 5x + 3
y = -3
x^2 - 5x + 3 = -3
x^2 - 5x + 6 = 0
(x - 3)(x - 2) = 0
x - 3 = 0 or x - 2 = 0
x = 3 or x = 2
We are given y = -3.
Answer: (2, -3), (3, -3)
Answer:
(2, -3) , (3, -3)
Step-by-step explanation:
One is asked to find what values of the parameter (x) will yield the result (f(x)=-3) if the function (f(x)) is the following,
[tex]f(x)=x^2-5x+3[/tex]
Set this equation up, and solve to find the value of (x) that satisfies this requirement:
[tex]f(x)=x^2-5x+3=-3[/tex]
Inverse operations,
[tex]x^2-5x+6=0[/tex]
Factor, rewrite the quadratic equation as the product of two linear equations,
[tex](x-2)(x-3)=0[/tex]
Therefore the solutions are the following, the (x-coordinate) represents the input, and the (y-coordinate) represents the output.
(2, -3), (3, -3)
Solve the system of equations.
57 - 10x = 45
-
- 3y + 10x = -5
Answer: Step-by-step explanation:
57 - 10x = 45
-10x=-12
x=1.2
- 3y + 10x = -5
-3y+10=-5
-3y=-15
y=5
Answer:
1) 57 - 10x = 45 answer: x=−51/5
2) - 3y + 10x = -5 answer: x=3/10y+−1/2 or y=10/3x+5/3
Step-by-step explanation: Hope this help :D
giving brainliest and if u cant read down it says: if the spinner is spun 540 times throughout the day, how many dog or cat toys are expected to be given away? please help.
Answer:
324/540 cats and dogs should be expected to be given away
Step-by-step explanation:
First, write the fraction of the cats on the spinner plus the dogs on the spinner.
[tex]\frac{4}{10} + \frac{2}{10} = \frac{6}{10}[/tex]
Now, we have to make the denominator 540 but we have to make it equal so you divide.
540 ÷ 10 = 54
So, our fraction should look like this.
[tex]\frac{x}{540}[/tex]
Now, multiply 6 × 54 = 324
[tex]\frac{324}{540}[/tex] is our answer
Have a great day!
The dog or cat toys are expected to be given away = 378
What is probability?Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are.
If the spinner is spun 540 times throughout the day.
Total fraction of the cat and dogs together,
= 5/10+2/10
=7/10
Divide the 540 into 10 equal parts,
= 540/10
=54
let 'x' dog or cat toys are expected to be given away
So, x/540 = 7/10
x= 54*7
x= 378.
Hence, dog or cat toys are expected to be given away = 378/540
Learn more about this concept here:
https://brainly.com/question/15721135
#SPJ2
The number of tickets sold to a play for each showing is 78, 84, 87, 80, 91, 95, and 80. Find the mean, median, mode, and range. *
Answer:
mean=85
median=84
mode=80
range=17
Step-by-step explanation:
How to Find the Mean
Add up all data values to get the sumCount the number of values in your data set Divide the sum by the countHow to Find the Median
Arrange data values from lowest to the highest value The median is the data value in the middle of the set If there are 2 data values in the middle the median is the mean of those 2 values.How to Find the Mode
Mode is the value or values in the data set that occurs most frequently.How to Find the Range
First, put all the numbers in order.Then subtract (take away) the lowest number from the highest. The answer gives you the range of the list.
will name brainliest
Answer:
a=12
Step-by-step explanation:
We must use SOH, CAH, TOA
SOH= Sin0=opp/hyp
CAH=Cos0=adj/hyp
TOA= Tan0=opp/adj
Since we have opposite and hypotenuse we use Sin ratio, in this case,
sin30°= [tex]\frac{a}{24}[/tex]
[tex]\frac{1}{2}[/tex]=[tex]\frac{a}{24}[/tex] we cross multiply
[tex]\frac{2a}{2}[/tex]=[tex]\frac{24}{2}[/tex]divide both sides by 2 to get a by itself
a=12
Answer:
a = 12
Step-by-step explanation:
To find a, we will use the trigonometric ratio of Sin, since the opposite side of the angle given needs to be found out and the hypotenuse is given;
Sin(30) = [tex]\frac{a}{24}[/tex]
Sin(30) * 24 = a
12 = a
Hope this helps!
Express the following in the form a + bi, where a and b are real numbers:
[tex] \sqrt{60i - 11} [/tex]
The equivalent of the complex number expression is [tex]\sqrt{60i - 11}[/tex] is 2 + 15i
How to rewrite the expression?The complex number expression is given as:
[tex]\sqrt{60i - 11}[/tex]
Rewrite as:
[tex]a + bi = \sqrt{60i - 11}[/tex]
Take the square of both sides
[tex]a^2 + 2abi - b = 60i - 11[/tex]
By comparison, we have:
a^2 - b = -11
2ab = 60
Divide both sides by 2
ab = 30
Using a graphical tool, we have:
a = 2,b = 15
So, we have:
a + bi = 2 + 15i
Read more about complex numbers at:
https://brainly.com/question/10662770
#SPJ1
1) Squeaky Clean takes their 41-foot ladder to a new building
that is 25 feet tall. What is the furthest away they can put the
base of their ladder from the building and still reach the top?
Round your answer to the nearest foot.
Answer: 32 ft
Step-by-step explanation: The ladder and the building and the ground form a right triangle will ladder being the hypotenuse....
pythagorean theorem hyp2 = 252 + d2
41^2 - 25^2 = d^2 d =~~ 32 ft
cited from web2.0calc