Answers
Answer: The answer is x=[tex]\frac{-3-\sqrt{65} }{4}[/tex], [tex]\frac{-3+\sqrt{65} }{4}[/tex]
Step-by-step explanation:
1) You can solve a situation like [tex]ax^2+bx+c=0[/tex] using the quadratic formula
[tex]x=-b[/tex]±[tex]\sqrt{b^2-4ac}[/tex] / 2a
2) Apply that to the problem and we get x= -3±[tex]\sqrt{3^2-4*2*(-7)}[/tex]/2*2
3) Solve what's inside the square root and what's at the denominator --> x=-3±[tex]\sqrt{65}[/tex]/4
4) separate the solutions ---> [tex]x=\frac{-3+\sqrt{65}}{4} , \frac{-3-\sqrt{65}}{4}[/tex]
5) Your final solutions are [tex]x=\frac{-3+\sqrt{65}}{4} , \frac{-3-\sqrt{65}}{4}[/tex]
Related Questions
WILL GIVE BRAINLIEST NO LINKS ANSWER ASAP
a taste test asks people from Texas and California which pasta they prefer brand a or brand b this table shows the results a person is randomly selected from those tested what is the probability that the person is from Texas given that the person prefers brand a
0.62
0.47
0.45
0.64
Answers
Answer: 0.47
Step-by-step explanation: i just took the quiz
Identify the area of a regular pentagon with side length 11 cm. Round to the nearest tenth.
Answers
Answer:208.2
Step-by-step explanation:
Answer:
208.2
Step-by-step explanation:
I got it right;)
The purpose of life insurance is to protect your car in case of an accident. O True. False.
Answers
Answer:
false
Step-by-step explanation:
The statement given is false information.
What is insurance?Insurance that pays out a sum of money either on the death of the insured person or after a set period.
Given is a statement about life insurance,
The main purpose of a life insurance, is to provide the financial help to the survivors family not to secure against an accident.
Hence, The given statement is false.
For more references on life insurance, click;
https://brainly.com/question/1400638
#SPJ2
A piece of string 85 cm is divided into three pieces in the ratio 2 : 3: 5. Calculate: i) shortest piece
Answers
Answer: 17 cm
Step-by-step explanation:
First step is to add up the numbers in the ratio:
= 2 + 3 + 5
= 10
The shortest piece according to the ratio is the 2 in the ratio. To find out the length this 2 corresponds with, use two as the numerator and 10 as the denominator:
= 2 / 10 * 85 cm
= 17 cm
Marking brainliest
What human right is based on race? Im doing a research essay and I will talk about how Georgie Floyd’s rights were violated but I don’t know what human right to use
Answers
Answer:
Human rights include the right to life and liberty, freedom from slavery and torture, freedom of opinion and expression, the right to work and education, and many more. Everyone is entitled to these rights, without discrimination.
Step-by-step explanation:
these are the 5 basic rights, most of them were taken for george floyd
hope this helped
y=x
2
+3x+2 & y=4x+4
Answers
Answer:
Step-by-step explanation:pho;np9yil.gboil k,
Tim left a $4 tip on a $20
bill. What percent tip did he leave?
Answers
Answer:
20%
Step-by-step explanation:
Divide 4 (tip) by 20 (total bill) and you get 20 percent.
Answer:
20% tip
Step-by-step explanation:
4/20 = 0.2
Convert to a percentage:
0.2*100 = 20%
Ming is making cookies, and hehas 10 eggs in his refrigerator to make 30 cookies hiis recipe requires 3 eggs. Using this recipe, how many more eggs will he need to buy to make120 cookies?
Answers
Answer:
your answer is 12 eggs
Step-by-step explanation:
divide the cookies and the eggs.
30 divided by 3 is 10
thats how many cookies you can make with one egg.
now divide 120 by 10
your answer is 12 eggs
Please help me with this one
Answers
Answer:
Step-by-step explanation:
these are not similar , b/c the sides are not a single multiple of each other
N/A
Find the value of x and y of the equilateral triangle
Answers
Answer:
x = 12
y = 30
Step-by-step explanation:
We know:
All sides of equilateral triangle are equal:
= > 3 x + 8 = 4 x - 4
= > 8 + 4 = 4 x - 3 x
= > x = 12
Also, we know all angles of equilateral triangle is 60. And their sum is 180.
= > 2 y = 60
= > y = 30
Hence we get required answer!
what is the amount of money whose 25percent is Rs 350
Answers
Answer:
Rs 1400
Step-by-step explanation:
Let us take the required number be x. According to question ,
=> 25% of x = Rs 350
=> 25/100 × x = Rs 350
=> x = Rs 350 × 100 / 25
=> x = Rs 1400
• Hence the required answer is Rs 1400.brainliest goes to whoever answers the question correctly also if you want more points answer my other questions
Answers
Answer:
f(x) = -½x + 16
Step-by-step explanation:
Using two points in the line, (0, 16) and (4, 14), we can write an equation for the linear function in the slope-intercept form, f(x) = mx + b, by finding the slope (m) and the y-intercept (b), then substituting each of the value into f(x) = mx + b.
✔️Slope (m) = change in y/change in x
Using, (0, 16) and (4, 14),
Slope (m) = (14 - 16)/(4 - 0) = -2/4
m = -½
✔️y-intercept (b) would be the value of y when x = 0, or the point at which the y-axis is intercepted by the line.
Thus,
When x = 0, y = 16
Therefore,
b = 16
✅Write the equation of the function by substituting m = -½ and b = 16 into f(x) = mx + b
Thus:
f(x) = -½x + 16
how many inches in a mile
Answers
Answer:
63360 inches
Hope that helps!
Answer:
1 mile is equal to 63360
Step-by-step explanation:
.
PLEASE HELP WILL MARK BRAINLY NO LINKS ONLY GET ONE AWNSER FOR ME SO NO LINKS OR FUNNY STUFF
Answers
Answer: I believe it's 6 5/8
Step-by-step explanation:
CAN SOMEONE HELP LIKE RIGHT NOW!!!!!
Answers
Answer:
30 + 25 + (4x + 25) = 180
55 + (4x + 25) = 180
-55 -55
4x + 25 = 125
-25 -25
4x = 100
Divide by 4 on both sides
X = 25
Now we just replace the x with 25
4 x 25 = 100, 100 + 25 = 125 degrees is the missing angle of y
Find the circumference of the circle using C = pi•D
Answers
Answer:
The correct answer is the third choice, 14 pi.
The choice you selected is wrong.
Circumference = πD
= diameter is 14, so its 14π
which of the following is most likely to be the number of times a 1 is rolled out of 500 rolls
80
200
30
Answers
What kind of triangle is this?
54°
95°
31°
acute
right
obtuse
Answers
54° is acute
95° is obtuse
31° is acute
Explain why the graph shown may be misleading.
Answers
Answer:
size of the cars
Step-by-step explanation:
if you were to look at it you would see all of the cars are the same length
What is the probability of spinning an even number?
Answers
Answer:
3/5
Step-by-step explanation:
there are 6 even numbers and 4 odd so 10 in total which is 6/10 and that simplified is 3/5 PLS give me brainliest i beg
Find the value of x. Round your answer to the nearest tenth
(Will give brainiest)
Answers
Answer:
Its 67.9 but technically its 67.912 *hope this helps
Step-by-step explanation:
Right scalene triangle.
Sides: a = 66 b = 16 c = 67.912
Area: T = 528
Perimeter: p = 149.912
Semiperimeter: s = 74.956
Angle ∠ A = α = 76.373° = 76°22'23″ = 1.333 rad
Angle ∠ B = β = 13.627° = 13°37'37″ = 0.238 rad
Angle ∠ C = γ = 90° = 1.571 rad
Height: ha = 16
Height: hb = 66
Height: hc = 15.55
Median: ma = 36.674
Median: mb = 66.483
Median: mc = 33.956
Inradius: r = 7.044
Circumradius: R = 33.956
Vertex coordinates: A[67.912; 0] B[0; 0] C[64.142; 15.55]
Centroid: CG[44.018; 5.183]
Coordinates of the circumscribed circle: U[33.956; 0]
Coordinates of the inscribed circle: I[58.956; 7.044]
Exterior (or external, outer) angles of the triangle:
∠ A' = α' = 103.627° = 103°37'37″ = 1.333 rad
∠ B' = β' = 166.373° = 166°22'23″ = 0.238 rad
∠ C' = γ' = 90° = 1.571 rad
a group of 4 friends shares 2 packs of gum equally? there are 8 pieces of gum in each pack. which set of equations shows how many pieces of gum, g each friend recieves?
Answers
2 packs of gum
8 pieces each pack
PEMDAS
8x2/4
16/4
4
The answer is each friend would receive 4 pieces of gum
16) Jenna is responsible for changing the broken light bulb in a streetlamp. The streetlamp is 14 feet high. Jenna places the base of her ladder 3 feet from the base of the streetlamp. Jenna can extend the ladder from 10 feet to 14 feet. How long must her ladder be to reach the top of the streetlamp? Will her ladder work?
Answers
Use the Pythagorean theorem:
Height is 14, base is 3, so we can calculate the length required.
Length = sqrt(14^2 + 3^2)
Length = sqrt( 196 + 9)
Length = sqrt(205)
Length = 14.32 feet.
The ladder needs to be 14.32 feet. The longest her ladder can be is 14 feet so her ladder won’t work.
Answer:
14.32 is ur awnser
Step-by-step explanation:
Help me please :))))))))))
Answers
Step-by-step explanation:
[tex]\huge\mathcal\pink{here's \: your \: solution} \\ \\ \cos = base \div hypotenuse \: \\ \\ cos = j \div 8 \sqrt{2} \\ \\ \cos(45) = 1 \div \sqrt{2} \\ \\ j \div 8 \sqrt{2} = 1 \div \sqrt{2} \\ \\ j = 8 \sqrt{2} \div \sqrt{2} \\ \\ j = 8 inches \\ \\ \huge\mathfrak\purple{hope \: it \: helps..}[/tex]
Please answer this math question for me
Answers
Right angles add up to 90 so 90-30=60
Answer:
A = 60°
Step-by-step explanation:
The total angle is 90°
So, subtract. 90 - 30 = 60°
Have a great day! :)
Help!!!
Find the expression to represent the volume of the rectangular prism.
Answers
Answer:
here you go/;
Step-by-step explanation:
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units
PLEASE NO LINKS Thank you :)
Answers
Answer:
hon you never asked a question or added an image. id be happy to try and help if you do!
Answer:
ok but how do we help you
Step-by-step explanation:
COME GET THESE EASY POINTS QUICK
Answers
Answer:
B
Step-by-step explanation:
If 75% of a number is 300 and 20% of the same number is 80, find 95% of that number.
Answers
Answer:
380
Step-by-step explanation:
380/400 is 95%
The floor of a rectangular cage has a length 4 feet greater than its width, w. James
will increase both dimensions of the floor by 2 feet. Which equation represents the
new area, N, of the floor of the cage?
Answers
Answer:
x² + 8x + 12
Step-by-step explanation:
Area of a rectangle = length × width
Original dimensions:
Width = x
Length = x + 4
James will increase both dimensions of the floor by 2 feet
New dimensions:
Width = x + 2
Length = x + 4 + 2
= x + 6
Area of the new rectangle = length × width
= (x + 2) × (x + 6)
= x² + 6x + 2x + 12
= x² + 8x + 12
Equation which represents the
new area, N, of the floor of the cage = x² + 8x + 12