Answer:
Option C
Step-by-step explanation:
Given :-
A equation x² + 2x + 4 = 0 .And we need to find out the nature of the roots . The nature of the roots is determined by the Discriminant of the equation , and the Discriminant of a quadratic equation is ,
[tex]:\implies[/tex] Discriminant = b² - 4ac
[tex]:\implies[/tex] Discriminant = 2² - 4(1)(4)
[tex]:\implies[/tex] Discriminant = 4 -16
[tex]:\implies[/tex] Discriminant = (-12)
Now here the value of D is less than 0 .So the roots will be imaginary .
Hence the roots are imaginary and unequal.
PLEASE HELP ASAPPP!!!
Directions: Show all of your work for the following two problems on a seperate sheet of paper. Take a picture of your work and attach the picture to this assignment.
1. Solve the following system of equations, show all your work on a separate sheet of paper, and check your answer. Write the solution as a point (x,y) (4 points).
3x + 5y = -40
–x + 4y = -15?
2. Suppose you and your friends form a band and you want to record a demo. Studio A rents for $125 plus $50 an hour and Studio B rents for $200 and $30 an hour. Let t = the number of hours and c = cost.
Write an equation to represent the cost at each studio (2 points)
Solve the system (2 points)
Write the solution as a point (x, y) (2 points)
Answer:
x = -5 y = -5
Step-by-step explanation:
–x + 4y = -15
- 4y -4y
-1(-x = -4y - 15)
x = 4y + 15
Substitute x = 4y + 15 into 3x + 5y = -40
3(4y + 15) = -40
17y + 45 = -40
- 45 -45
17y = -85
/ 17 /17
y= -5
Substitute y = - 5 into x = 4y + 15:
x = 4(-5) + 15
x = -20 + 15
x = -5
Answer:
Part I
(-5,-5)
Part II
(3.75, 312.50)
Step-by-step explanation:
Part I
(1) 3x + 5y = -40
(2) -x + 4y = -15
solve for x in (2)
x = 15 + 4y
substitute into (1)
3(15+4y) + 5y = -40
45 +12y + 5y = -40
45 +17y = -40
17y = -85
y = -5
substitute y = -5 into (1)
3x + 5(-5) = -40
3x -25 = -40
3x = -15
x = -5
so (-5, -5)
Part II
Studio A
C = 125 + 50t
Studio B
C = 200 + 30t
125 + 50t = 200 + 30t
20t = 75
t = 3.75
(3.75, 312.50)
A coach is buying snacks for 22 players on a soccer match chip is a total of $77 to buy each player a bottle of water and energy bar the price of one energy bar is two dollars
The question is incomplete:
A coach is buying snacks for 22 players at a soccer match. She pays a total of $77 to buy each player a bottle of water and an energy bar. The price of one energy bar is $2. Let w equal the price of a bottle of water. Write an equation that represents the situation.
Answer:
x=44+22w, where
x is the total amount paid
w is the price of a bottle of water
Step-by-step explanation:
With the information provided, you can say that the total amount paid is equal to the result of multiplying the price per energy bar for the number of energy bars purchased plus the result of multiplying the price per bottle of water for the number of bottles of water:
price per energy bar= $2
number of enrgy bars= 22
price per bottle of water= w
number of bottles of water= 22
x=(2*22)+(w*22)
x=44+22w, where
x is the total amount paid
w is the price of a bottle of water
Plzzzzzzzzzzzzz help ;-;
Answer:
option A
associative property of addition
Answer:
Associative property
Step-by-step explanation: when they are added or multiplied does not change the sum or product
Name an outcome that has a probability between 0 and 0.5.
In the last 150 years, the average height of people in the industrialized nations has increased by 1/3 foot. Today, American men have an average height of 5 7/12 feet. What was the average height of American men 150 years ago? show your work
Answer:
5 1/4 feetStep-by-step explanation:
Average height now:
5 7/12 feetThe difference:
1/3 footAverage height 150 years ago:
5 7/12 - 1/3 = 5 + 7/12 - 4/12 =5 + 3/12 =5 + 1/4 =5 1/4 feetHow many times greater is the value of the 6 in 618,923 than the 6 in 27.652
The value of 6 in 618,923 is 1,000,000 or 1 million times greater than that of 6 in 27.652.
What is Place Value?Place value of a digit in a number is defined as the value of that digit according to the position where it stands.
Place value of a whole number of digits from right to left can be expressed as ones, tens, hundreds, thousand, etc.
Place value of a decimal number after the decimal point from left to right can be expressed as tenths, hundredths, thousandths, etc.
The given numbers are 618,923 and 27.652.
Place value of 6 in 618,923 = 6 × 100,000
That is 6 hundred thousands is the place value.
Place value of 6 in 27.652 = 6 × 1/10 = 6 × 10⁻¹
This is at the tenth place.
6 × 100,000 = 6 × 10⁻¹ × 1,000,000
So 6 × 100,000 is 1,000,000 times greater than 6 × 10⁻¹.
Hence the value of 6 in 618,923 is 1,000,000 times greater than the 6 in 27.652.
Learn more about Place Values here :
https://brainly.com/question/27734142
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T.13 Compound interest: word problems YJW
You have prizes to reveal! Go to you
Alexa opened a savings account 5 years ago. The account earns 3%
interest, compounded annually. If the current balance is $600.00, how
much did she deposit initially?
Round your answer to the nearest cent.
Submit
Answer:
hshshjsjsjejdjdjsnnsjsns
Which expression is equivalent to 3^2 x 3^6
3^12
9^12
9^8
3^8
Answer:
[tex] {3}^{8} [/tex]
Step-by-step explanation:
1) Use product rule: x^a x^b = x^a+b.
[tex] {3}^{8} [/tex]
2) Simplify.
[tex]6561[/tex]
The answer is option D) 3⁸.
Please answer quickly!!!!! Will give the brainiest There is a pic attached.
Answer:
A. 2/3
Step-by-step explanation:
There are 12 tiles in total, and 8 tiles with numbers that are greater than 4.
Express this as a fraction:
8/12
Simplify:
2/3
Hope this helps
hello im a person
are you a person
NANI
Answer: i am a person
Step-by-step explanation:
Answer:
heloo
i am a person
or am I.
A company used 7.4 x 105 sheets of paper a month, the accounting department used 8.9 x 103 sheets. How many were used by other departments during the month
Answer:
731,100
7.311 × 10^5
Step-by-step explanation:
The computation of the number of sheet used by other department is given below:
Given that
The company used 7.4 × 10^5 sheets of paper So it would be 740,000
And, The accounting department used 8.9 × 10^3 sheets so it would be 8,900
Now the number of sheet used by other department is
= 740,000 - 8,900
= 731,100
= 7.311 × 10^5
Which of the following represents a solution to the equation d3 - 343?
Type the correct answer in each box. Use numerals instead of words.
Bethany collected 200 survey responses regarding recycling behaviors in her city of those responses, 174 people responded that they
participate in the city's recycling program.
Use this information to complete the statement. Round all answers to the nearest hundredth.
, which means that
% of the people surveyed do not participate in the city's
The approximate sample proportion is
recycling program.
Answer:
Step-by-step explanation:
Answer:
1st one 0.87
2nd one 13
PLATO
Step-by-step explanation:
Someone please help me withe this
Answer:
13
Step-by-step explanation:
it will be B because it find the missing side you need to do the pythagorean theorem
Ice cream cones cost $1.10 and sundaes cost $2.35. One day, the receipts for a total of 172 cones and sundaes were $294.20. How many cones were sold.
Answer:88
Step-by-step explanation:
1.10c+2.35s=294.20
C+S=172
1.10c+2.35s=294.20 if you multiply by 100.
110c+235s=29420
-110 (cones + sundaes =172)
-110c-110s=-18920
125s/125=10500/125
S= 84
C+84=172
-84. -84
C= 88
A right triangle has a height of 13 centimeters and a base of 16.4 centimeters what is the area of the triangle
9514 1404 393
Answer:
106.6 cm²
Step-by-step explanation:
The area of a triangle is given by the formula ...
A = 1/2bh
A = 1/2(16.4 cm)(13 cm) = 106.6 cm²
The area of the triangle is 106.6 square centimeters.
Anitra has 12 hair ribbons. One fourth of the ribbons are pink. Three are purple, and the rest are red. What fraction of Anitra's hair ribbons is red?
The fraction of Anitra's hair ribbons is red is 1/2.
What is the fraction?In Mathematics, fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.
Given that, Anitra has 12 hair ribbons.
One fourth of the ribbons are pink.
So, number of pink ribbons = 1/4 ×12
= 3
Three are purple, and the rest are red.
So, number of red ribbons
= 12-3-3
= 6
Now, fraction = 6/12 = 1/2
Therefore, the fraction of Anitra's hair ribbons is red is 1/2.
To learn more about the fraction visit:
brainly.com/question/1301963.
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Denise bought 12 slices of cheese at he deli. The total weight of cheese she bought was 1/4 pound What is the weight of each slice of cheese?
Plsssssss help. 10th grade mathematics
Answer:
B) 2/3
Step-by-step explanation:
Mhanifa can you please help? I will mark brainliest!
Answer:
Given function
h(x) = 2x - 1#15 Find the inverse of h(x)
Substitute x with y and h(x) with x and solve for y:
x = 2y - 12y = x + 1y = 1/2x + 1/2The inverse is:
h⁻¹(x) = 1/2x + 1/2#16 The graph with both lines is attached.
The x- and y-intercepts of both functions have reversed values.
#17 Table of the inverse function will contain same numbers with swapped domain and range.
Initial look is like this:
x | -3 | -2 | -1 | 0 | 1 | 2 | 3h⁻¹(x) | -1 | | 0 | | 1 | | 2The rest of the table is filled in by finding the values:
x | -3 | -2 | -1 | 0 | 1 | 2 | 3h⁻¹(x) | -1 | -0.5 | 0 | 0.5 | 1 | 1.5 | 2Guys pls help me!!!!!!!! (It’s not c)
Answer:
The answer is D .
Step-by-step explanation:
Hope it was helpful .
Plz solve it And show ur work plzzz giving brainliest
Answer:
Step-by-step explanation:
4 x 6 1/4
4 x 25/4
= 25
Please help with this
Answer:
1, 2, 3, 6, 9, 18, 27, 54
Step-by-step explanation:
Anyone know how to answer this math question
Answer:
Step-by-step explanation
x^2+y^2=25
A rectangular prism has a length of 312 m, a width of 412 m, and a height of 2 m. Which expressions can be used to find the volume of the prism? Select each correct answer.
Answer: [tex]312\times 412\times 2[/tex]
Step-by-step explanation:
Given
The length of rectangular Prism is [tex]l=312\ m[/tex]
The width of the rectangular prism is [tex]w=412\ m[/tex]
The height of the rectangular prism is [tex]h=2\ m[/tex]
The volume of the rectangular prism is given by [tex]l\times w\times h[/tex]
Put values
Volume is [tex]V=312\times 412\times 2=2,57,088\ m^3[/tex]
PLEASE HELP!!
solve
2x + 3y = 12
( 6x - y = 4 )
A. x = - 1 1/2, y = -13
B. x = 1 1/5, y = 3 1/5
C. x + 1 1/3, y = 4
D. x = 11, y = -3 1/3
Answer:
I am not sure but
Step-by-step explanation:
try to use to website https://www.symbolab.com/solver/pre-algebra-calculator
you can chose what your learning and it gives you the right answer. make sure you put the numbers in correctly. if you don't it will mess every thing up for that problem. That one reason I have a B in math cuz i use that site for my math. and it shows you how to do it with steps
please give me a heart if the site really helps you guys :)
Salma made 378 for 18 hours of work.
At the same rate, how much would she make for 5 hours of work?
Please help me answer this question!
Answer:
Sorry, I can't help you with that :( I hope someone else can tho!
Step-by-step explanation:
Two symmetric points on a parabola are (3, -2) and (7, -2).
What is the parabola's axis of symmetry?
Answer:
(5, -2)
Step-by-step explanation:
It is in the middle of the parabola for the points (3, -2) and (7, -2).
Given m||n, find the value of x.
Answer: T be honest i really don't know.
Step-by-step explanation:
Answer:
x=29
Step-by-step explanation:
Based off of the Consecutive Interior Therom, Angle 1= Angle 2. With this given, you get:
6x-1=5x+28
-5x. -5x
x-1=28
ANSWER:
x=29
Maly is going to throw a fair coin 70 times. Write down an estimate for the number of times the coin will land on head
Answer:
there are 2 sides for a coin
so divide 70/2 = 35
estimate for heads - 35
Step-by-step explanation:
