Answers
Answer:The answer is A
Step-by-step explanation:
Use the quadratic formula
=
−
±
2
−
4
√
2
x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}
x=2a−b±b2−4ac
Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.
5
2
−
7
−
1
8
=
0
5x^{2}-7x-18=0
5x2−7x−18=0
=
5
a={\color{#c92786}{5}}
a=5
=
−
7
b={\color{#e8710a}{-7}}
b=−7
=
−
1
8
c={\color{#129eaf}{-18}}
c=−18
=
−
(
−
7
)
±
(
−
7
)
2
−
4
⋅
5
(
−
1
8
)
√
2
⋅
5
x=\frac{-({\color{#e8710a}{-7}}) \pm \sqrt{({\color{#e8710a}{-7}})^{2}-4 \cdot {\color{#c92786}{5}}({\color{#129eaf}{-18}})}}{2 \cdot {\color{#c92786}{5}}}
x=2⋅5−(−7)±(−7)2−4⋅5(−18)
2
Simplify
3
Separate the equations
4
Solve
Solution
=
7
±
4
0
9
√
1
0
Related Questions
A worker earns $9 per hour and works 25 hours each week. If the worker receives a 3% pay increase, how much additional pay will the worker earn each week?
Answers
Answer: $6.75
Step-by-step explanation:
25 hours times $9= $225/week
3% increase from $9.00= $0.27
$9.27 times 25 hours= $231.75
$231.75-$225= $6.75 more per week
pls no files, thanks!
Answers
3rd answer i believe
A loaded truck travels 14 km in 25 minutes. If the speed
remains the same, how far can it travel in 5 hours?
Answers
Answer:
Given that truck covers 14km in 25 minutes. Answer: In 5 hours distance travelled = 5(60)(14)/25 = 168 km.
Step-by-step explanation:
brainliest?
A.Vertical
B.Adjacent
C.complementary
D.Supplementary
E.none
Answers
Answer:
none or vertical
Step-by-step explanation:
I think sorry if I get that wrong
WILL GIVE BRAINLIEST! Please help
Waterbrook Farm Includes 240 acres of cropland. The farm owner wishes to plant this
acreage in both corn and soybeans. The profit per acre in com production is $325 and
In soybeans is $180. A total of 320 hours of labor is available. Each acre of com
requires 2 hours of tabor, whereas each acre of soybeans requires 1 hour of labor.
Lot x = the number of acres planted with corn.
Let y = the number of acres planted with soybeans.
1) What would the farm's profits be if they planted only corn?
2) What would the farm's profits be if they planted only soybeans?
3) Find the equation for the Waterbrook Farm's profit (P = ),
4) Make a system of inequalities based off the constraints of the Farm.
5) In DESMOS. graph the system of inequalities
6) How should the land be divided between the corn and soybeans in order to yield
the mamum profit?
7) What is the maximum profit of planting both com and soybeans for the Farm?
Answers
Answer:
1) $52,000
2) $43,200
3) P = 325 × x + 180 × y
4) x + y ≤ 240
2·x + y ≤ 320
325 × x + 180 × y ≤ 52,000
5) Please find a similar graph created with MS Excel
6) Corn will have 80 acres
Soybean will have 160 acres
7) $54,800
Step-by-step explanation:
The acres of cropland at the Waterbrook Farm, A = 240 acres
The profit per acre in corn production, p₁ = $325
The profit per acre in soybean production, p₂ = $180
The hours of labor required by each acre of corn = 2 hours
The hours of labor required by each acre of soybeans = 1 hours
The number of acres planted with corn = x
The number of acres planted with soybeans = y
1) The farm's profit, 'P', if they planted only corn is P = p₁ × A
∴ P = $325/acre × 320 hours/(2 hours/acre) = $52,000
The farm's profit if they planted only corn, P = $52,000
2) The farm's profit, 'P', if they planted only corn is P = p₂ × A
The required labor for cultivating the 240 acres at 1 hour/acre = 240 hours of labor
Therefore, the labor is sufficient for the entire farmland, we get;
The profit, P = $180/acre × 240 acres = $43,200
∴ The farm's profit if they planted only soybeans, P = $43,200
3) The equation for the Waterbrook Farm's profit, 'P' can be found, depending on the area of the farm used for the corn and the soybeans as follows;
P = 325 × x + 180 × y
4) The system of inequalities includes;
x + y ≤ 240
2·x + y ≤ 320
325 × x + 180 × y ≤ 52,000
5) Using DESMOS, we have;
The graph of the systems of inequalities is plotted and a graph similar to the attached graph created with MS Excel is found
6) The maximum profit point found using DESMOS is (80, 160)
Therefore, for maximum profit, 80 acres should be used for corn while 160 acres should be used for soybeans
7) The maximum profit of planting both corn and soybeans is found from the profit obtained from the land divided between corn and soybeans in order to yield maximum profit as follows;
P = 325 × 80 + 180 × 160 = 54,800
The maximum profit of planting both corn and soybeans, P = $54,800.
CAN you please help me
Answers
Answer:
A
Step-by-step explanation:
hope this helps and is right :)
help asap please!! thank you
Answers
Answer: The third option
Step-by-step explanation:
(6) (5) is the area of the quadrilateral, therefore you subtract that value by the area of the semi-circle.
to find the area of a semi circle the formula is: (1/2) π ( [tex]r^{2}[/tex])
The radius is 2.5 because the diameter is 5, and the radius is half the diameter.
I need to find the area of the right shape.
Answers
Answer:
i believe it is 70
Step-by-step explanation:
6×12=72
6-4=2
72-2=70
The polygons are similar. Find the value of X.
Answers
Answer:
the polygon on the right side is doubled the size of the one on the left, therefore x=11
9 in. 14 in. Find the area of the triangle shown above. [?] square inches
Answers
Answer:
63
Step-by-step explanation:
9 x 14 = 126/2 = 63
Given that 27-1/3 3 = 94 + 3r
31
find the exact value of x.
Answers
Answer:
the exact value is x =1/2 or x=0.5
your welcome!
The exact value is x = 1/2.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
We are given an expression as;
[tex]27^{-1/3} = \frac{9^{1/4} }{3^{r + 1}}[/tex]
Now we can see that
27 = 3³
9 = 3²
Then the power are 3(-1/3) = -1
3(1/4) = 3/4
So we have;
[tex]3^{-1} = \frac{3^{2/4} }{3^{r + 1}}\\\\3^{-1} =3^{1/2 -r - 1} \\\\3^{-1} =3^{1 -2r - 2 /2}\\\\3^{-1} =3^{-2r - 1/2}[/tex]
So,
-2 = -2r - 1
-2r = -1
r = 1/2
More about the Algebra link is given below.
brainly.com/question/953809
#SPJ2
Find the surface area of the sphere with a radius of 5.
Answers
Answer:
Step-by-step explanation:
Answer:
314.16
Step-by-step explanation:
4πr^2
4π(25)
100π
= 314.16
Through any two points there is exactly one______
Answers
Is the following triangle a right triangle?
Yes Or No ?
Answers
A right triangle.
.............
Angela rented a car for $29.99 a day plus a one-time insurance cost of $5.00. Her bill was $124.96. For how many days did she rent the car? Write an equation and then solve
Answers
Answer:
94 days
Step-by-step explanation:
That's a cheap rent-a-car place :)
Btw I took the test.
what is the order of these from smallest to greatest?
-3, +4, -5, -1, +1, -6
Answers
Answer:
-6, -5 ,-3 ,-1 ,1 ,4
Camila owns a car worth $5,900 and owes $2,800 on the car loan. She has $1,600 in her bank account and $5,210 in a savings account. She has a balance of $1,400 on her credit card. What is her net worth?
Answers
Answer:
[tex]Net\ Worth=11310[/tex]
Step-by-step explanation:
From the question we are told that:
Car worth [tex]C=5900\$[/tex]
Car Loan[tex]L=2800\$[/tex]
Bank account [tex]B= 1600\%[/tex]
Savings account [tex]S=5210\&[/tex]
Credit card [tex]CC=1400\%[/tex]
Generally Net worth is the value of the assets a person or corporation owns, minus the liabilities they owe.
Therefore
[tex]Net\ Worth=Asset-Liability\\\\Net\ Worth=Car worth+Bank account+Savings account +Credit card-Car Loan\\\\Net\ Worth=5900+1600+5210+1400-2800[/tex]
[tex]Net\ Worth=11310[/tex]
Answer:
6tvuyrfrd
Step-by-step explanation:
Pllzzzzzz someone help me
Answers
Answer:
3/10. 0.3
Step-by-step explanation:
when you divide mixed numbers you should reciprocate them I mean take the reciprocal and that was 2 and over every number there is one so I took 1/2 hope you understand why I kept 1/2 I took its reciprocal hope you understand if I'm wrong tell me right away I'll try it out good luck.
HELP ME giving brainlest
Answers
Answer:
The answer is false.
Step-by-step explanation:
THE reason why it is false is because if so that wouldnt make any sense.
Michelle earns $250 a week as a waitperson plus tips. Her tips average 28% of her customers’ total bills. Last week, the total for all her customers’ bills was $4,275.00. Find her earnings for last week.
A)$1,447
B)$1,197
C)$1,267
D)$4,525
Answers
Answer:
1 Week = $250
Tips= $4275*28% = $1197
Total Earnings= $250+$1197 = $1447
Subtract 2x2 + 6x – 5 from 7x2 + 3x + 4.
Answers
Part A
Consider the equation of two lines.
Line 1: -3x – 3y = 6.
The slope of the first line is
Line 2: 4x + 4y = 8.
The slope of the second line is
Part B.
What can we infer about the two lines?
PLEASE HELP
Answers
Answer:
-1 ; -1 ; the two lines are parallel
Step-by-step explanation:
To find the slope of the two lines, we can proceed in two different ways:
1) the faster is do the division: -a/b where a is the number the multiplies x and b is the number that multiplies y
line 1: m = 3/-3 = -1 line 2: -4/4 = -1
2) the second is to rewrite the two equation in the slope intercept form and find what term multiplies the x
line 1
-3y = 3x+6
-y = x + 2
y = -x -2
m = -1
line 2
x+y = 2
y = -x +2
m = -1
the two lines have the same slope, so they are parallel
plz help asap!!!! thank you!!!........
Answers
Answer:
choice 1) 312 cm²
Step-by-step explanation:
area = (16 x 12) + (10 x 12) = 312 cm²
Answer:
312
Step-by-step explanation:
triangle：
10x12/2=60
two triangle：
60x2=120
rectangle：
16x12=192
add up：
120+192=312
Liam is swimming at 3 kilometers per hour. How long will it take Liam to travel 4.5 kilometers?
Answers
One hour and thirty minutes.
Explanation:
3km = 1 hour
1.5km = 30 min (half of distance, half of time)
4.5km = 1 hour and 30 min
Answer: Uhhhh
Step-by-step explanation:
1 hour 30 but stop saying Uhhhh for the answer to some people's questions okay? Thanks!
1.) Phoebe has a hunch that older students at her high school are more likely to bring
a bag lunch than younger students, because they have grown tired of cafeteria
food. she takes a simple random sample of 80 sophomores and finds that 52 of
them bring a bag lunch. a simple random sample of 104 seniors reveals that 78 of
them bring a bag lunch. Does this data provide convincing evidence to support
Pheobe's hunch at the 5% significant level?
2.)Interpret the P-value in context
Answers
Answer:
here use this https:// www.olma.org/ourpages/auto/2017/3/22/51438803/ch%2013%20rev%20answers%20.pd make sure to remove the space pls give me brainly
Step-by-step explanation:
PLEASE HELP ME DUE IN 3 MINUTES THIS IS MY GRADE ON THE LINE HELP MEEEEE
Answers
Answer:
7) is $1.70
8) is 8 miles per hour
9) is Store A is the better buy
10) is 222
11) is the area is 6
12) is the range is 14
8.)8 miles per hour
20 = 150
X = 60
20 x 60 = 150x
1200 = 150x
X = 8
9.)better buy number A
44.68 /16 = 2.7925
31.57 /11 = 2.87
11.) The area of this figure is 6
3 X 2 = 6
12) Range of the data set is 14
15 - 1 = 14
can guys help me please
Answers
Answer:
there is 243.84 cm in 8 feet
round to the nearest hundredths =3266.53
Some one help ASAP!!
Answers
What are the next three terms in the sequence 3, 6, 9, 12, ...?
Answers
Answer:
15, 18, 21
Step-by-step explanation:
At Super Grocery, potatoes cost $2.85 for 5 pounds. At Value Market, potatoes cost $4.20 for 7 pounds. What is the unit price of a pound of potatoes at Value Market.
Answers
Answer:
$1.66 per pound of potatoes.
Step-by-step explanation:
7/4.20 = 1.66$ per Pound
Mark as brainllest
$1.66 per pound of potatoes.