High School
Please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please AND SHOW YOUR WORK
Answers
Answer:
Step-by-step explanation:
6) y = 2x² + 6x - 80
1) y = 2*x² + 2*3x - 2*40
y = 2 [ x² + 3x - 40]
2) Sum = 3
Product = -40
Factors = (-5) ; 8 {-5 +8 = 3 ; (-5)*8 = -40}
y = 2 [ x² + 8x - 5x - 40]
= 2 [ x(x + 8) - 5(x + 8) ]
= 2 [ (x +8) (x - 5)]
y = 2(x +8)(x -5)
b) y = 0
2(x + 8)(X - 5) = 0
x + 8 = 0 ; x - 5 = 0
x = -8 ; x = 5
(-8) ; 5 are the zeros.
Related Questions
The polynomial x2+ 3x - 1 is a factor of x3 + 2x2 - 5x-6 true or false
Answers
Answer:
it's false
Step-by-step explanation:
I hope it helps
Write 19/25 in decimal form.
Answers
0.76 19 divided by 27= 0.76
Show how to find the amount of interest and the total amount that Nora will have to pay after 1 year
Answers
Answer:
bro so i dont have an answer but i'm on the same thing rn lol
Step-by-step explanation:
anong meaning nang pangnakaraan, pangkasalukuyan panghinaharap
Answers
★ « pangnakaraan » ★
mga oras na nangyari na o mga bagay na natapos na★ « pangkasalukuyan » ★
mga bagay na nangyayari★ « panghinaharap » ★
mga oras na mangyayari palamanghope it helps
PLZ HELP!!! I’ll give brainly !!!!!
Answers
Answer:
(3,-2)
Step-by-step explanation:
The vertex is the lowest point of the arc!
Hope I helped!
Tom makes $249.25 in 5 days. How much does he make in 4 days?
Answers
Answer:
$199.4 in four days
$49.85 in one day
Step-by-step explanation:
249.25 / 5 =49.85
49.85 x 4 = 199.4
Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. The amount that Tom makes in 4 days is $199.4.
What is multiplication?Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.
The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.
Given that Tom makes $249.25 in 5 days. Therefore, the amount that Tom makes in a day is,
Amount Tom makes in a day = $249.25 / 5 days
= $49.85 per day
The amount of money that Tom can make in 4 days is,
Amount = $49.85 per day × 4 days
= $199.4
Hence, the amount that Tom makes in 4 days is $199.4.
Learn more about Multiplication here:
https://brainly.com/question/14059007
#SPJ2
Which equation shows a proportional relationship between x and y?
A. y = 9
B. y = 3x + 1
C. y = −3x − 2
D. y = 4x
NO LINKS
Answers
B. y=3x+1
Step-by-step explanation:
#Hopeee Itttt Helppsssssss!
A proportion relationship is a direct relationship between two variables thus y = 4x will be the proportional relationship between x and y thus option (D) will be correct.
What are the ratio and proportion?The ratio is the division of the two numbers.
Proportion is the relation of a variable with another. It could be direct or inverse.
A proportional relationship is given as,
A ∝ B
Removing proportionality
A = kB
Here, k is the constant of proportionality.
As per the given in last option,
y = 4x
x = (1/4)y
Removing constant.
x ∝ y
Hence "A proportion relationship is a direct relationship between two variables thus y = 4x will be the proportional relationship between x and y".
For more information about ratios and proportions,
brainly.com/question/26974513
#SPJ5
Two times a number is more than 36.
Answers
Answer:
19
Step-by-step explanation:
19 x 2 = 38
Twice a quantity usually indicates to take two of the things in question; usually this indicates to multiply by 2. Thus "twice a number x" can be written symbolically as 2x. If this is part of a problem, say twice a number x is 6, then we can rewrite algebraically as 2x=6; dividing both sides by 2 yields x=3.
QUESTION 8
The city Music Hall charges $24.00 per adult and $14.00 per senior citizen. One day 492 people attended a concert. The total for tickets purchased
was $7878.00. How many senior citizens attended the concert?
O 393 senior citizens
O 99 senior citizens
O200 senior citizens
O 292 senior citizens
Answers
Answer:
Adults (x) = 99 and
Seniors (y) = 393
393 seniors
Step-by-step explanation:
Adults= x
Seniors = y
1) x+ y = 492
2) 24x + 14y = 7,878
1) x = 492 - y
2) 24 (492 - y) + 14 y = 7,878 (substitution)
11808 - 24y + 14y = 7,878
11,808 - 10y = 7,878
11,808 - 7,878 = 10y
3,930/10 = y
y = 393
1) x + 393 = 492 (substitution)
x = 492 - 393
x = 99
Please help me solve this!! I will give brainliest and this is due in 10 minutes
There's a big soccer game next month, and Juan has purchased 3 tickets for himself and his siblings. He spent 53 dollars.
Rosie wants to take her family also, but knows her parents and some cousins will want to attend as well. She knows she will have to purchase 9 tickets. Estimate approximately how much money Rosie will likely have to spend on the tickets. Explain your reasoning below.
Answers
Answer:
53 divided by 3 would be $17.66
so 17.66 times 9 would be $158.94
Answer:
158.4 dollars
Step-by-step explanation:
so first of all the three tickets were 53 dollars so we divide the dollars and the no of tickets like this 53÷3 = 17.6 dollars
so since each ticket is 17.6 dollars now we know that Rosie wants to purchase 9 tickets so we will multiply the no of tickets by dollars per ticket like this
9×17.6= 158.4 dollars
and 158.4 is your answer
last 2 guyss !!!! tysm
Answers
First one is a rotation 90° clockwise
Second one is B. 134°
Answer:
A 90° clockwise
B 134°
is -5 a rational or an irrational number
Answers
Answer:
Rational
Step-by-step explanation:
An irrational number cannot be written as the ratio. of two integers. An irrational number is simply the opposite of a rational number. (Recall that a rational number is one that can be represented as the ratio of two integers.
A rational number is one that can be written as an integer over an integer, with non-zero denominator. ie. all your fractions.
An irrational number cannot be expressed as a ratio of integers
-5 is rational because it is a number that ends and is not a decimal that doesnt terminate.
A copy machine makes 32 copies per minute how long does it take to make 152 copies?
Answers
Answer:
It should take about 4.75 min.
Step-by-step explanation:
Hope this helps and could you mark me as the brainliest
pls help don't send links
Answers
Answer:
there is not any correct answer among the options.
the answer is
[tex] \frac{ - 21}{45} [/tex]
Simplify the expression!
-7/15
helpppppppppppppppppppppppppppp
Answers
Answer:
hii
Step-by-step explanation:
I don't know what is the answer
Answer:
use formula
Step-by-step explanation:
and solve step by step hope it helpd
3/7x2/3 ..........................
Answers
[tex] \frac{3}{7} \times \frac{2}{3} \\ \\ reduce \: \: the \: numbers \\ \\ \frac{1}{7} \times 2 \\ \\ calculate \\ \\ = \frac{2}{7} \\ \\ in \: alternate \: \: form \\ \\ 0.285714 \\ \\ hope \: it \: helps[/tex]
Answer:
2/7
Step-by-step explanation:
3/7 x 2/3
1. Multiply the numerators and denominators: 3 ×2 = 6, 7 × 3 = 21 --> 6/21
2. Simplify: 6/21 = 2/7
Will mark as brainiest (Must show work)
Answers
Answer:
m∠CAB = 40°
Step-by-step explanation:
DAC = 99
DAB = 59
B is inside DAC, and so is DAB. So CAB must add to 59 to get to 99, nothing over that because it's inside DAC.
So 99 - 59 = 40
CAB must be 40°
That's all I can say for now. Hope this helps and a thank won't hurt! :)
Which graph represents the equation y – 4 = -1/3(x-2)
Answers
A and B is wrong tho
Which identity or property is used during the first step when solving the equation 5 − 8x = 1/2 (4x − 1)
Answers
Answer: Distributive Property
Step-by-step explanation:
Answer:
Step-by-step explanation:
5-8x=1/2 (4x-1)
5-8x=2x-1/2
10-16x=4x-1
-16x-4x=-1-10
-20x=-11
x=11/20
Which pairs of rectangles are similar polygons?
Select Similar or Not Similar for each pair of rectangles
Answers
Answer:
Second and fourth pairs of rectangle are similar.
A real root of X3 – 3x2 + x + 7 = 0 lies between two consecutive integers.
Find these two integers.
Answers
Answer:
B. between -2 and -1
Step-by-step explanation:
Brainlyist please
can someone help on number 7 and 8
show work please aswell this is due tmr!
Answers
Answer:
In the picture
Step-by-step explanation:
For #8, make sure you combine the like terms on the parantheses due to PEMDAS, then distribute and solve for the variable.
HELLOOOO can somene help me
Answers
Answer:
I think it`s the second one
Step-by-step explanation:
Answer: The answer is the second choice. Hope this helps!
you and your friend went shopping. you bought 3 shirts and 4 sweaters for $69. your friend bought 6 shirts and 2 sweaters for $66 how much does one shirt and one sweater coat each
I need this answered quickly
Answers
Answer:
Shirt = $7
Sweatshirt = $12
Step-by-step explanation:
Let T represent shirts and S to represent sweatshirts
you bought 3T + 4S = 69
your friend bought 6T + 2S = 66 multiply second equation by -2
-2 x 6T + 2S = 66
-12T - 4S = -132 now find the sum of this and first equation
3T + 4S -12T - 4S = 69 - 132 add like terms
-9T = -63 divide both sides by -9
T = 7 this is the cost of one shirt to find the cost of a sweatshirt we replace the T in any equation with 7
3T + 4S = 69
3*7 + 4S = 69
21 + 4S = 69 subtract 21 from both sides
4S = 48 divide both sides by 4
S = 12
This is algebra, functions, and data analysis
Answers
greater than: -2
Because x+2 ≥ 0 for the square root to not break, so x ≥ -2
What is the answer to this question?
I am confused.
Answers
Answer:
y=88 x=42
Step-by-step explanation:
Since the total measurments of one triangle have to equal 180 and one angle is already 50, and the angle on the oppisite side of the y angle is 90 the only logical number for y would be 88. Hope this helped :)
Tom’s garden is 5 feetlong and 2 ½ feet wide. Draw his garden and label the length of the
sides. What is the area of his garden?
Answers
Answer:
12.5 cm^2
Step-by-step explanation:
5 × 2.5 = 12.5
...............
Someone plz help me :(
Answers
Answer:
28 miles
Step-by-step explanation:
12:3
7:x
12÷3=4
4 miles per hour
7•4=28
Explanation: Since she ran 12 miles in 3 hours, we can simply do 12m/3 and get a pace of 4m or 4 miles per hour. Then multiply 4 by 7 because thats how many hours she has to run. The answer is 28.
A beach volleyball court is 9 meters wide and 18 meters long. The rope used
for the boundary line costs $1.58 per meter. How much would it cost to buy a
new boundary line for the court?
Answers
Answer:
$85.32Step-by-step explanation:
The boundary is the perimeter of the rectangle of 9 m x 18 m:
P = 2(9 + 18) = 54 mCost of the boundary line:
54*$1.58 = $85.32How many solutions exist for the given equation?
3(x – 2) = 22 – x
Answers
3(x - 2) = 22 - x
3x - 6 = 22 - x
3x + x = 22 + 6
4x = 28 / : 4
x = 7
Only one solution