Answer:
C)
Step-by-step explanation:
infinite number of solutions means the left side equals the right side of the equation
no solution means the left side does not equal the right side
x = {whatever} means there is one solution
if you roll a dice one time what is the probability for it to land on a number greater than 2
Answer:
4/6
Step-by-step explanation:
use the matrix tool to solve the system of equations enter the answer as an ordered pair. 8x+5y=9 -x+y=7
Answer:
x = -44/13
y = -65/13
Step-by-step explanation:
Using matrix form means using the crammers rule
The matrix form of the expression is written as;
[tex]\left[\begin{array}{ccc}8&5\\-1&1\\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}9\\7\\\end{array}\right][/tex]
AX = B
taking the determinant of A;
|A| = 8(1) - 5(-1)
|A| = 8 + 5
|A| = 13
After replacing the first row with the column matrix;
[tex]A_x =\left[\begin{array}{ccc}9&5\\7&-1\\\end{array}\right][/tex]
|Ax| = 9(-1)-5(7)
||Ax| = -9 - 35
|Ax| = -44
x = |Ax|/|A|
x = -44/13
similarly for y
[tex]A_x =\left[\begin{array}{ccc}8&9\\-1&7\\\end{array}\right][/tex]
|Ay| = 8(7)+9
|Ay| = 56+9
|Ay| = 65
y = |Ay|/|A|
y = -65/13
An angle measures 79.6° less than the measure of its complementary angle. What is the measure of each angle?
Answer:
y = 259.6/2 = 129.8 degrees. so x = 129.8 - 79.6 = 50.2 degrees.
Step-by-step explanation:
I got this answer from somewhere else. but it is correct. i hope this helped.
7676767676767676767676767
Answer:
uhhh is this a trick question lol
have a good day :D
Step-by-step explanation:
What are all the zeros of the function f(x) = 4x^2 + 8x + 3?
Answer: -1/2 and -3/2
Step-by-step explanation:
a car is going 40 miles per hour for 3 hours how far did the car go?
can anyone explain to me
Answer:
120miles
Step-by-step explanation:
I am not sure exactly I just guessed that since it's 40 miles an hour, it would be 40 x 3 ~ but am not sure... hope it works out!
btw am rlly bad at this :'')
- sry if am wrong
Since there are no restrictions on the strings, we can think of this problem as drawing 5 random digits in sequence. There is a 9/10 chance each time we draw to NOT get a 4. Every time we draw, we multiply by 9/10 again until we've draw 5 digits. Thus, the answer is (9/10)^5 :)
Answer:
[tex]Pr = 0.59049[/tex]
Step-by-step explanation:
See Comment for Complete Question
Given that A has 5 digits. A digit in A can be chosen from 0 to 9 (10 digits).
However, selection without 4 means that we can only select from 0 to 3 and 5 to 9 (altogether, that is 9 digits)
The probability of selecting a number other than 4 in each of the digit is:
[tex]1st \to \frac{9}{10}[/tex]
[tex]2nd \to \frac{9}{10}[/tex]
[tex]3rd \to \frac{9}{10}[/tex]
[tex]4th \to \frac{9}{10}[/tex]
[tex]5th \to \frac{9}{10}[/tex]
So, the required probability is:
[tex]Pr = 1st * 2nd * 3rd * 4th * 5th[/tex]
[tex]Pr = \frac{9}{10} *\frac{9}{10} *\frac{9}{10} *\frac{9}{10} *\frac{9}{10}[/tex]
[tex]Pr = \frac{9^5}{10^5}[/tex]
[tex]Pr = \frac{59049}{100000}[/tex]
[tex]Pr = 0.59049[/tex]
Give the domain.
y =2 / (5x - 4)(4x - 9)
Answer:
x ≠ 4/5, x ≠ 9/4
You can also write it as "all real numbers except 4/5 and 9/4."
Step-by-step explanation:
The denominator of a fraction cannot equal 0. We can write this relation to find what x does NOT equal:
(5x - 4)(4x - 9) ≠ 0
We can use the zero-product property to get two separate equations:
5x - 4 ≠ 0
5x ≠ 4
x ≠ 4/5
4x - 9 ≠ 0
4x ≠ 9
x ≠ 9/4
I will give brainliest to the first person to answer the question! Please be correct and please help <33
Answer:
112.25
Step-by-step explanation:
Answer:110.25
Step-by-step explanation:
*** 10 points**** if you help me
Answer:
h squared is 65 but h is 8.06
Step-by-step explanation:
use the pythagorean theorem
7^2+4^2=
49+16= 65
square root of 65 is 8.06
hope this helps
Given the three functions: f(x)=4(2) g(x)=8x² + 24x , and h(x)= 4x + 8
Label each function as quadratic, linear, or exponential.
f(x)=
g(x)=
h(x)=
Answer:
f(x)=exponential
g(x)= quadratic
h(x)= linear
Step-by-step explanation:
exponential function
[tex] {ab}^{x} [/tex]
Quadratic function
[tex]a {x}^{2} + bx + c[/tex]
Linear function
[tex]y = mx + c[/tex]
Hi there!
[tex] \large \boxed{ y = {a}^{x} \: \: (a \neq 0, \: a > 1)}[/tex]
The equation above is an exponential family type.
[tex] \large \boxed{y = a {x}^{2} + bx + c \: \: (a \neq 0)}[/tex]
The equation above is quadratic type.
[tex] \large \boxed{ y = mx + b}[/tex]
The last type above is a linear type.
Hence, the answers are:
f(x) = exponentialg(x) = quadratich(x) = linearJay wants to spend less than $80 He plans to buy a pair of jeans that cost $19.99 and some shirts that cost \$14.99 each Write an equation or inequality to represent the number of shirts Jay can buy Define all variables used • What is the greatest number of shirts that Jay can buy while spending less than $80 ? Show your work
Answer:
give me brainllest if it is right
a. $19.99 + $14.99 = $34.98
b. Jay can buy 5 shirts without spending more than $80
Step-by-step explanation:
if A={1,2,3,4} and B={3,4,5,6} are two sets,find (A-B).
Step-by-step explanation:
[tex](A-B) = ( - 2, \: - 2, \: - 2, \: - 2)[/tex]
Select the correct answer. What is the approximate distance between points D and E? Round your answer to the nearest hundredth. A.
Answer:
The approximate distance between points D and E is 8.25
Step-by-step explanation:
The figure is as follows :
To find - What is the approximate distance between points D and E ?
Solution -
By Pythagoras Theorem, we get
(DE)² = (FE)² + (DF)²
= (8)² + (2)²
= 64 + 4
= 68
⇒(DE)² = 68
⇒DE = √68
⇒DE = 8.246
∴ we get
The approximate distance between points D and E is 8.25
Can someone give me the answer with work to this problem?
Answer:
x=10
Step-by-step explanation:
4x-18=3x-8
4x-3x=-8+18
x=10
what is the median !!! help!! alegbra 2. marking brainliest
Answer:
The answer is 8.5
Step-by-step explanation:
Just list all the numbers and cross them out one by one.
Add up all of the numbers and divide by the number of numbers in the data set. The median is the central number of a data set. Arrange data points from smallest to largest and locate the central number. This is the median.
help please please please
Answer:1152 miles
Step-by-step explanation: we know he can drive 384 in 6 hours so if we multiply 6 by 3 its 18 so we must multiply 384 by 3 and the answer would be 1152
can someone help me on this question please
Answer:
y = -2x + 5 [ 1st option ]
Step-by-step explanation:
Consider any two points , say
(1,3) (2,1)Firstly let's find the slope of the line as ,
=> m = y₁ - y₂ / x₁ - x₂
=> m = 3-1 / 1-2
=> m = 2/-1
=> m = -2
Third point is, (3 , -1) . Using slope point form .
=> y - y₁ = m ( x - x₁ )
=> y - (-1) = -2( x - 3)
=> y + 1 = -2x +6
=> y +2x +1-6=0
=> y +2x -5 = 0
=> y = -2x + 5
On looking at options first one is correct
Hence the equation of line is y = -2x + 5.A 2-quart carton of sour cream costs $4.32. What is the price per cup?
Answer:
0.54 cents
Step-by-step explanation:
4 cups per quart = 8 cups per 2 quarts
4.32/8 = .54
Someone answer this for me
Answer:
I think it is B or 17 ft
Step-by-step explanation:
Hope this helps. Tell me if I'm wrong
Answer: Probably 30
Step-by-step explanation: If you multiply 12 x 5 = 60, which we don't see that answer. I'll say C because 12 + 12 is 24. Add 5 and you get 29. The closer answer to 29 is 30. I could be wrong because I'm only in Middle School and kinda get confused with questions like these.
what is the number 154 798 105 in expanded notation
HI PLS HELP ASAP ILL GIVE BRAINLIEST
Answer:
Monsoon.
Step-by-step explanation:
Answer:
upper level
Step-by-step explanation:
I think it is because it it sounds like it match
Fill in the blank to complete this trig
ratio.
y
tan a =
a
Х
[?]
B
N
B
С
у
Z
Answer:
z/y
Step-by-step explanation:
how many lines of semmetry does a rectangle have
Answer:
A rectangle has 2 lines of symmetry
hello please help i’ll give brainliest
Answer:
Volcanic Eruptions, Earthquakes, Erosion
I am very sorry if this is wrong
Have a great rest of your day and good luck!
Answer:
the answer is a, b, and d
Step-by-step explanation:
erosion is caused by wearing down overtime
Dustin has a spinner that is divided into 5 equal-size sections colored pink, blue, orange, white, and green. What is the probability that Dustin spins pink on the 1st spin and then spins a color other than pink on the 2nd spin?
Answer:
1/6
Step-by-step explanation:
1st spin:
1 out of the 5 sections are pink, so the probability of spinning a pink on the 1st spin is 1/5.
2nd spin:
5 out of the 6 sections are not pink, so the probability of spinning a pink on the 2nd is 5/6.
Multiply the probabilities of the two spins to get the answer.
[tex]\frac{1}{5} *\frac{5}{6} =\frac{5}{30} =\frac{1}{6}[/tex]
Slope of the line that passes through (8,-9) and (14,-9)
Answer:
slope = 0
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (8, - 9) and (x₂, y₂ ) = (14, - 9)
m = [tex]\frac{-9+9}{14-8}[/tex] = [tex]\frac{0}{6}[/tex] = 0
Help! it's easy but I need help
Answer:
no lol
Step-by-step explanation:
Answer:
i will tell you what to do and then you do the work
Step-by-step explanation:
arrange the numbers from lowest to largest
count the amount of numbers to find how many students wrote each test
to find the mean add all of the numbers up then divide by the amount of numbers there are
to find the mode it that is the number that appears the most or the most common value
to find the median is the middle number, when you put it from lowest to largest, it will be the middle number
hope this helps
Forty-five percent of what number is 15.75?
45 percent (calculated percentage %) of what number equals 15.75? Answer: 35.
Answer:
35
Step-by-step explanation:
15.75 / 0.45 = 35
i will give brainiest if correct please hurry!!
You flip a coin 50 times and get 26 tails. What is the experimental probability of flipping heads? Write your answer as a simplified fraction or a percentage.
Answer:
12/25
Step-by-step explanation:
If you got 26 tails, that means you got 50 - 26 or 24 heads. The experimental probability can be represented by the desirable flips over the total number of flips. We are looking for heads, so the amount of heads is the amount of desirable flips, and the total is 50. From this, we get the fraction 24/50 which simplifies to 12/25.