Answer:
7/1
Step-by-step explanation:
Slope(m) =y2-y1 /x2-x1
= - 4-3/(-7)+6
= - 7/(-1)
= 7/1
-X² + 5x - 6 = 2
Using the quadratic formula
[tex]-x^2+5x-6=2\\-x^2+5x-6-2=0\\-x^2+5x-8=0\\[/tex]
↝ Form into [tex]ax^2+bx+c = 0[/tex] where a > 0 (Optional)
[tex]x^2-5x+8=0[/tex] ↝ Multiply -1 for both sides.
↝ Then proceed with the Quadratic Formula.
x = [-b ± (√b²-4ac)]/2a ↝ Quadratic Formula
[tex]x=\frac{-(-5)+-\sqrt{(-5)^2-4(1)(8)}}{2(1)}\\x=\frac{5+-\sqrt{25-32}}{2}\\[/tex]
↝ As you can see that inside the square root, the numbers cannot be negative. Therefore, the solutions are imaginary.
↝ Solution with Real Numbers System ↝ There are no real solutions.
↝ Solution with Complex Number System ↝
[tex]x=\frac{5+-\sqrt{25-32}}{2}\\x=\frac{5+-\sqrt{-7}}{2}\\x=\frac{5+-\sqrt{7}i }{2}[/tex]
Therefore, the answer for Complex Number System is (5±√7i)/2
7th grade math help me pleasee
pls help I need the answer quick!
Answer:
the blue line
Step-by-step explanation:
there are 6 rows of 16 chairs set up for the third-grade play. In the first 4 rows 2 chairs on each end are reserved for teachers. The rest of the chairs are for students. How many chairs are there for students? please HELP!
Answer: 102
Step-by-step explanation:
Find the value of x. Then, find the measure of each labelled angle.
x=_
(7x+10)°=_
(15x+16)°=_
Answer:
x = 7deg
Step-by-step explanation:
7x + 10 + 15x + 16 = 180 (angles adjacent to each other in a //polygon are supplementary)
22x = 154
x = 7deg
This is a question on polygons and angles. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)
8-4 1/2??????????????????????????????????
Answer:
[tex]\frac{7}{2}[/tex]
Step-by-step explanation:
[tex]4\frac{1}{2} = \frac{9}{2}[/tex] [tex]\frac{8}{1} = \frac{16}{2}[/tex] [tex]\frac{16}{2} - \frac{9}{2} = \frac{7}{2}[/tex]I hope this helps!
1. What operation occurs in 3x?
2. In the expression 5x-1 what two operations occur?
1) 3 * x
2) multiplication (5 * x); subtraction (5x - 1)
Evaluate [(30 + 6) - 34 = 9 divided by 2
Answer:
2=9/2
Step-by-step explanation:
6th grade math I mark as brainliest
Answer:
False
Step-by-step explanation:
2*2*2*2 is the correct answer
Answer:
False
Step-by-step explanation:
[tex]2^4=2\cdot 4\\\\Simplify\:\:2^4 =16\\Simplify\:\:2\cdot 4 = 8\\\\16=8\\\\\mathrm{The\:sides\:are\:not\:equal}\\\\\mathrm{False}[/tex]
Ms. Avella’s class volunteers at an animal shelter one day per week.each student is responsible for caring for four animals during every hour spent at the shelter
Please help
Answer:
Option (3)
Step-by-step explanation:
Since, every student is responsible for the caring of 4 animals during every hour,
Number of animals cared for ∝ Number of hours spent at shelter
a ∝ h
a = kh
Here 'k' = proportionality constant
For h = 1 and a = 4,
k = [tex]\frac{h}{a}=\frac{4}{1}[/tex]
k = 4
a = 4h
By this equation,
For h = 2,
a = 8
For h = 3,
a = 12
For h = 4,
a = 16,
For h = 5,
a = 20
Since, for every input value there is a different output value,
Diagram shows a function.
Therefore, Option (3) will be the correct option.
Select the correct answer from each drop-down menu.
Consider the function below Select the correct answer.
Which function is decreasing and approaches negative infinity as x increases?
A.
f(x) = 3(6)x − 2
B.
f(x) = -3(6)x + 2
C.
f(x) = -3(0.6)x + 1
D.
f(x) = 3(0.6)x − 1
Answer:
The answer is C.
Have A Nice Day
Hey can someone please help me with this
M is the midpoint of RS. R has coordinates (-2,-3) and M has coordinates (1,0). Find the coordinates of S.
Answer:
[tex](4,3)[/tex]
Step-by-step explanation:
Given
[tex]R = (-2,-3)[/tex]
[tex]M = (1,0)[/tex]
Required
Determine the coordinates of S
Midpoint is calculated as:
[tex]M(x,y) = \frac{1}{2}(x_1 +x_2,y_1+y_2)[/tex]
Where:
[tex](x,y) = (1,0)[/tex]
[tex](x_1,y_1) = (-2,-3)[/tex]
Substitute these values in the above formula:
[tex](1,0) = \frac{1}{2}(-2 + x_2,-3+y_2)[/tex]
Multiply through by 2
[tex]2 * (1,0) = 2 * \frac{1}{2}(-2 + x_2,-3+y_2)[/tex]
[tex](2,0) = (-2 + x_2,-3+y_2)[/tex]
By direct comparison:
[tex]2 = -2 + x_2[/tex] and [tex]0 = -3 + y_2[/tex]
Solving for x2
[tex]2 = -2 + x_2[/tex]
[tex]x_2 = 2 + 2[/tex]
[tex]x_2 = 4[/tex]
Solving for y2
[tex]0 = -3 + y_2[/tex]
[tex]y_2 = 0 + 3[/tex]
[tex]y_2 = 3[/tex]
Hence, the coordinates of S is: [tex](4,3)[/tex]
10 Points!
Tyra competed on a trivia game show. 10 points were awarded for correct answers, and 5 points were deducted for incorrect answers. She answered 2 questions correctly, but answered one incorrectly. How many points does she have?
Answer:
Step-by-step explanation:
Answer = 15 points
Explain:
Correct answer gives you 10 points
incorrect answers subtract 5 points
She had to correct question which would be 20pts. (10 + 10 = 20)
She got one answer wrong which would subtract 5pts (20 - 5 = 15)
answer = 15pts
what is descriptive language
Find A and B if the graph of Ax + By = 12 passes through (2, 1) and is parallel to the graph of 2x − 7y = 3.
HELLPPPPPP
Answer:
A=-2 and B=7
Equation is -2x+7y=3
Step-by-step explanation:
Pls answer ! Thanks
Answer:
The slope is 2
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
How many meters Penelope jogs in 3 laps
Halla el perímetro y el área de un rectángulo cuyos lados miden 6,3 dm y 48 cm respectivamente
Answer:
El perímetro y el área de un rectángulo cuyos lados miden 6,3 dm y 48 cm es 222 cm y 3024 cm² respectivamente.
Step-by-step explanation:
Para empezar debes tener en cuenta que las medidas tienen que estar en la misma magnitud; por lo tanto en este caso la unidad de medida elegida a utilizar es centímetros. Por lo que el lado que mide 6,3 dm será expresado en cm. Entonces se puede aplicar la siguiente regla de tres simple: si 1 dm equivale a 10 cm, entonces 6,3 dm a cuántos cm equivale?
[tex]cm=\frac{6,3 dm*10 cm}{1 dm}[/tex]
cm=63
Entonces 6,3 dm= 63 cm
El perímetro es la distancia alrededor de una figura, mientras que el área es las unidades cuadradas dentro de una figura.
El Perímetro de un rectángulo es igual a la suma de todos sus cuatro lados. Un rectángulo siempre tiene dos pares de longitudes iguales. Entonces en este caso se obtiene:
63 cm + 63 cm + 48 cm + 48 cm= 222 cm
El área de un rectángulo es el producto de la longitud de los lados. Entonces en este caso se obtiene:
63 cm* 48 cm= 3024 cm²
El perímetro y el área de un rectángulo cuyos lados miden 6,3 dm y 48 cm es 222 cm y 3024 cm² respectivamente.
9., Alex is having a pizza party for 22
people. Each pizza has 6 slices. How
many pizzas should Alex buy to
ensure that each person gets at least
1 slice?
Answer:
You’ll need to purchase at least 12 pizzas to handle your group
Step-by-step explanation:
Robert is working two summer jobs, making $10 per hour babysitting and making
$25 per hour tutoring. In a given week, he can work no more than 10 total hours and
must earn a minimum of $130. If Robert worked 4 hours tutoring, determine the
minimum number of whole hours babysitting that he must work to meet his
requirements. If there are no possible solutions, submit an empty answer.
Answer:
3 hours
Step-by-step explanation:
The equation will be
10b+25t ≤ 130 (b = hours of babysitting, t = hours of tutoring)
Plug in the 4 hours of tutoring
10b+(25 times 4) ≤ 130
= 10b+100 ≤ 130
10 times 3 = 30, which answers the question
Since 100 + 30 = 130
Therefore, the answer to the minimum amount of hours Robert has to tutor
to make a minimum of $130 is . . .
3
Two groups separately performed an experiment by tossing a coin in the air. Group X performed 50 trials and group Y performed 100 trials. Each group recorded the results in the table below: Group Heads Tails X 33 17 Y 53 47 What conclusion can be drawn about the number of trials and the probability of the coin landing on heads or tails? The experimental probability is closer to the theoretical probability for group Y than group X. The experimental probability and the theoretical probability for group X is the same. The experimental probability and the theoretical probability for group Y is the same. The experimental probability is closer to the theoretical probability for group X than group Y.
Answer:
D. The experimental probability is closer to the theoretical probability for group H than group G.
With any experimental probability, the more trials that are done will make the experiment move more likely to be the theoretical probability. in this case, the theoretical probability for flipping a coin is 50 heads 50 tails which H is closer to. any statistical data the more data collected the more close to reality it is.
Step-by-step explanation:
Answer:
B. The experimental probability and the theoretical probability for group X is the same.
Mr.Sanchez bought 2 magazines for $9.95 each and 1 book for $14.95. If the sales tax is 6%, what is the total cost of Mr.Sanchez’s purchase?
Answer:
36.94
Step-by-step explanation:
Multiply 34.85 (the total cost of the book and mags) by 0.06 (cost of sales tax) = 2.91
34.94 + 2.91 = 36.94
Tra
Figure P was rotated about the center shown by 180°.
P
Tra
center
Which figure is the image of P?
Qu
Choose 1 answer:
809
Tak
A
А
P Р
Ro
B
B
P Р
Qu
0%
Tal
P Р
Rel
D
P Р
Answer: got it correct
Step-by-step explanation:
And yeah
What is the slope of the line that passes through the points shown in the table?
х
y
-1
-5
0
-3
1
-1
2
1
slope
Answer:
Where is the table???
Step-by-step explanation:
Show the full question
Enter the approximate value of 2129 to the nearest tenth.
Answer:
10.8
Step-by-step explanation: The answer is 10.77032961 the nearest tenth would be the first seven and the second seven is above 5 so you would round up
Find the critical value zα2/ that corresponds to a 91% confidence level. Question 13 options: a) 1.7 b) 1.95 c) 1.81 d) 2.33 e) 2.57
Answer:
D
Step-by-step explanation:
2.33 I think
The critical value that corresponds to a 91% confidence level is 1.7
What is critical value?'Critical value is a cut-off value that is used to mark the start of a region where the test statistic, obtained in hypothesis testing, is unlikely to fall in. In hypothesis testing, the critical value is compared with the obtained test statistic to determine whether the null hypothesis has to be rejected or not.'
According to the given problem,
Confidence level = 91%
Now, α = ( 100 - 91 ) %
= 9%
= 0.09
Area of each tail = [tex]\frac{0.09}{2}[/tex]
= 0.045
Area in the middle = 1 - 0.045
= 0.955
Now, if we look up this area on the z-table, the critical value will come as 1.6954, which is nearly equal to 1.7.
Hence, we can conclude, the critical value is 1.7.
Learn more about critical value here: https://brainly.com/question/14508634
#SPJ2
A copy machine can print 480 copies every 4 minutes.
How many copies can it print in 10 minutes?
f 144 pieces of candy are placed into candy bags with each bag containing 12 pieces of
candy, how many bags can be filled?
1 1/2 divided by 2 2/5
Answer:
5/8
Step-by-step explanation: