Is (4,12) a solution to 2x+y=40
Which relationship is a function
(0,3)(1,2)(1,4)(2,1)
i cant figure out how to do this please help
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Answer:
∠BEC, ∠CED83°139°90°Step-by-step explanation:
When it comes to angles in a plane, the whole is the sum of the parts.
The little square in the corner of angle BED tells you that is a right angle, so has a measure of 90°. (This is the answer to part 4.) It also tells you that any ray between EB and ED will divide this angle into two complementary angles--angles that have a sum of 90°. There is only one such ray, EC, and it divides angle BED into angles BEC and CED.
1. Angles BEC and CED are adjacent complementary angles.
__
2. The parts of angle AEC are angles AEB and BEC. Angle AEC is the sum of those parts:
∠AEC = 49° +34° = 83°
__
3. Angle AED is the sum of angle AEB and right angle BED:
∠AED = 49° +90° = 139°
__
4. As we saw above, the marking on the figure tells you ...
∠BED = 90°
Evaluate [(21 + 6) − 32] ÷ 9 ⋅ 2. (1 point)
Answer:
-1.1
Step-by-step explanation:
Hope this helps! Let me know if it’s wrong. Pls give brainliest!
How much more money do the employees from Hideaway Pizza make at
the end of the month than the employees at Red & Blue's? Round your
answer to the nearest hundredth.
Supposing linear functions for both cases, it is found that employees at Hideaway pizza make $250 more at the end of the month.
--------------------
The salary, in dollars, for x days of work at Hideaway pizza is of:
[tex]S_h(x) = 300 + 40x[/tex]
At Red & Blue's, it is of:
[tex]S_r(x) = 500 + 25x[/tex]
A month is 30 days, so, the salaries are:
[tex]S_h(30) = 300 + 40(30) = 300 + 1200 = 1500[/tex]
[tex]S_r = 500 + 25(30) = 500 + 750 = 1250[/tex]
1500 - 1250 = 250, thus:
Employees at Hideaway Pizza make $250 more at the end of the month.
A similar problem is given at https://brainly.com/question/24610273
need an answer, please need an answer, please
Answer:
[tex] \alpha = \frac{ - b + \sqrt{ {b}^{2} - 4ac} }{2a} \\ \beta= \frac{ - b - \sqrt{ {b}^{2} - 4ac} }{2a} \\ \alpha +\beta = \frac{ - b + \sqrt{ {b}^{2} - 4ac} }{2a} + \frac{ - b - \sqrt{ {b}^{2} - 4ac} }{2a} \\ = \frac{ - 2b + 0}{2a} = \frac{ - 2b}{2a} \\ \therefore \: \alpha +\beta = - \frac{b}{a} \\ \alpha \times \beta = \frac{ - b + \sqrt{ {b}^{2} - 4ac} }{2a} \times \frac{ - b - \sqrt{ {b}^{2} - 4ac} }{2a} \\ = \frac{ {b}^{2} - ( {b}^{2} - 4ac) }{4 {a}^{2} } \\ = \frac{4ac}{4 {a}^{2} } \\ \therefore \alpha \times \beta = \frac{c}{a} \\ (x - \alpha)(x - \beta) = 0 \\ {x }^{2} + (\alpha + \beta)x + \alpha\beta = 0\\\\Let \:D =\sqrt{ {b}^{2} - 4ac}\\ If \:D >0 \Rightarrow \alpha, \beta \in \mathbb R\:(2 \: real \:roots)\\ If D =0 \Rightarrow \alpha= \beta \in \mathbb R\: (one \:real\: root) \\ If D <0 \Rightarrow \alpha, \beta \in \mathbb C\:(complex\: roots)\\At least 4examples\\{(x-1)}^{2}=0\\{x}^{2}-x-1=0 \\{x}^{2}-2x+13=0\\7{x}^{2}-49x-7=0\\ Applications\\ut+g{t}^{2}=s\\a=g\\u=-\frac{b}{a}\\s=\frac{c}{a}[/tex]
Answer:
Step-by-step explanation:
1) Determining the nature of roots:
Quadratic equation: ax² + bx +c = 0
Find D (Discriminant) using the D = b² - 4ac
If D = 0 , then the two roots are equal.
If D > 0, then the equation has two distinct real roots.
If D < 0, then the roots are complex/ imaginary.
One can find the sum and product of the roots using the below mentioned formula.
1) sum of roots = [tex]\frac{-b}{a}[/tex]
2) Product of roots = [tex]\frac{c}{a}[/tex]
If sum and product of the roots are given, one can frame the quadratic equation by x² - (sum of roots)*x + product of roots = 0
2) i) x² - 6x + 9 = 0
a = 1 ; b = -6 and c = 9
D = (-6)² - 4 * 1 * 9 = 36 - 36 = 0
D = 0. So, two equal roots
ii) x² - 4x + 3 = 0
a = 1 ; b = -4 ; c = 3
D = (-4)² - 4 * 1 * 3 = 16 - 12 = 4
D > 0. So, two distinct real roots.
iii) x² - 4x - 3 = 0
a = 1 ; b = -4 ; c = -3
D = (-4)² - 4*1*(-3) = 16 + 12 = 28 > 0
D > 0. So, two distinct real roots.
iv) x² - 4x + 7 = 0
a = 1 ; b = -4 ; c = 7
D =(-4)² - 4 *1 *7 = 16 - 28 = - 12
D< 0. So, two imaginary/ complex roots.
is the sum of 0.46+0.25 less than or greater than one? explain
Answer:
0.71
Less than one
Step-by-step explanation:
For the number to be more than one, the tenth would have to equal more than ten. For the hundredth, it would have to be more than 100.
-kiniwih426
solve pls brainliest
Which of these fractions equals 40%
Answer:
40/100
Step-by-step explanation:
What is the equation of the line shown on the graph?
A y=x
B y=4x
C Y= -x
D Y =1/4 X
Poems written for entertainment in ancient Sumer were called _______.
a.
Scribes
c.
Epics
b.
Cuneiform
d.
Haiku
Please select the best answer from the choices provided
A
B
C
D
Help pls! T^T I will make you brainylist
Solve the inequality. Then, graph the solution on the number line. (Show all your work) z+6>3 2z < -12
Answer:
[tex] - 3 < z < 6[/tex]
Step-by-step explanation:
[tex]z + 6 > 3 \\ 2z < 12[/tex]
1.
[tex]z + 6 > 3 \\ z + 6 - 6 > 3 - 6 \\ z > - 3[/tex]
2.
[tex]2z < 12 \\ \frac{2z}{2} < \frac{12}{2} \\ z < 6[/tex]
answer
[tex] - 3 < z < 6[/tex]
I am stuck, please help
Answer:
2323
Step-by-step explanation:
Mental math means to find a way to do this problem in your head without using paper, pencil or a calculator.
The question says there are 23 classes and each class is to collect 101 items.
The equation would be 23 x 101.
To do this in your head real quick, make the numbers easier to multiply.
Make the 101 items 100. That means you are telling each class to collect 1 less item or 23 less items total.
You can do this in your head real quick. 23 classes collecting 100 items is 2300 items.
You had each class collect 100 items instead of 101. That mean you didn't collect 23 items. So if you add those back in, you will get
2323 items.
....................... hello again!
Answer:warts up man
Step-by-step explanation:
You roll a standard die. You win $12 if you roll a six, $6 if you roll a one, and $0 if you roll anything else. What is the expected value of a single roll?
$3
$2
$9
$18
The expected value from a single die roll Given the Conditions stated is $3
The expected value is calculated using the relation :
E(X) = X × P(X)The table of probabilities from a single roll :
X ___ 6 ___ 0 ___ 0 ___ 0 ___ 0 ___12P(X)_ 1/6__ 1/6 __ 1/6 __ 1/6 __ 1/6 __ 1/6The expected value calculation :
E(X) = X × P(X) E(X) = (6×1/6) + 0 + 0 + 0 + 0 + (12 × 1/6) E(X) = 1 + 2 = $3Therefore, the expected value of a single die roll is $3
Learn more :https://brainly.com/question/18153040
HELP LAST ATTEMPT !?!!
Answer:
x=11
Step-by-step explanation:
35=3x+2 [Vertically opposite angles]
35-2=3x
x=33/3
x=11
9. For f(x) = -x + 8, which statement
is true?
A f(x + k) = f(x) + k
ction
B f(x - k) = f(x) - k
C f(x + k) = f(x) + f(k)
D f(x - k) = f(x) + k
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
The Correct choice is D
For the function f(x) = -x+8, f(x-k) = f(x)+k. Option (D) is correct.
What is function?Function is a combination of different types of variable and constants.
A function is denoted by f(x).
The given function is,
f(x) = -x+8,
Substitute x= x+k in the given function,
f(x+k) = -(x+k)+8
f(x+k) = -x-k+8
f(x+k) = -x+8-k
Substitute -x+8= f(x) here,
f(x+k) = f(x)-k
Substitute x= x-k in the given function,
f(x-k) = -(x-k)+8
f(x-k) = -x+k+8
f(x-k) = -x+8+k
Substitute -x+8= f(x) here,
f(x-k) = f(x)+k
Hence, option (D) is correct.
To know more about Function on:
https://brainly.com/question/12976942
Frankie charges 30$ per week for tutoring plus a 10$ sign up fee. Complete the table to show the relationship, then graph the table of values. WILL GIVE BRAINLIEST pls no bs answers
Answer:Answer:
8
Step-by-step explanation:
10(8) + 20 = 120
15 (8) = 120
(2t)^3 x (3t)^2 is what
Answer:
(23•32t5x)
Step-by-step explanation:
STEP1:
Equation at the end of step1:
(((2t)3) • x) • 32t2
STEP2:
Equation at the end of step2:
(23t3 • x) • 32t2
STEP3:
Multiplying exponential expressions :
3.1 t3 multiplied by t2 = t(3 + 2) = t5
Final result :
(23•32t5x)
round 45,621 to the nearest 10
Answer:
45621.0
Step-by-step explanation:
Already rounded to the nearest tenth.
Answer
the answer to this question is 45620.
Which expression has a solution of 54, if t = 6? 7 t 9 t 6 t 8 t
Answer:
The answer is 9
Step-by-step explanation:
Cause when we multiplied 6 to 9 the answer will be 54
Hiiii a little help here plz !!!!
well you see I'm supposed to answer this with 20 character so my bad for the long response, but I'd go with C
Pls help need asap thank you!
A box is filled with 10 bluecards, 2 red cards, and 2 yellow cards. A card is chosen at random from the box. What is the probability that the card is not red?
Write your answer as a fraction in simplest form.
Answer:
6/7 is your answer
Step-by-step explanation:
10+2+2 is 14 and that's your total number of cards. then you add the blue cards and the yellow cards to get your answer and reduce.
One dozen eggs equals 12 eggs. How many dozens of eggs equals 1,896 eggs?
A.133 dozen eggs
B. 158 dozen eggs
C.158 dozen eggs
D. 696 dozen eggs
Answer: B: 158 dozen eggs
Step-by-step explanation:
If one dozen eggs is 12, and you need to know how many groups of 12 go into 1896, all you need to do is divide 1896 by 12 to get 158. I hope this helps!
Answer:
C
Step-by-step explanation:
Divide 1896 by 12 and you get 158
¿Cuántas hipotenusa tiene el triangulo rectángulo?
Answer:
Step-by-step explanation:
Only one hypotenuse and it lies opposite to the right angle.
Find the value of the factorial.
13!
the value of factorial 13 is 6,227,020,800
If a patient takes 60 mg of medication three times a day how many grams will the patient take in four days?
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Answer:
0.720 grams
Step-by-step explanation:
The total number of doses in the 4-day period is ...
(3 doses/day)(4 days) = 12 doses
At 0.060 g/dose, the total number of grams is ...
(0.060 g/dose)(12 doses) = 0.720 grams . . . in 4 days
which number produces a rational number when multiplied by 0.5?
Answer:
2.22
Step-by-step explanation:
Your turn: Type in two addition expressions, both of which have an output value of -100.
1) Use two negative numbers.
2) Use one positive number and one negative number.
Answer:
-50 + -50
only negative...sorry.