Answers
Answer:
Step-by-step explanation:
1: x^2 + 6x = - 7
2: x^2 + 6x + (6/2)^2 = -7 + (6/2)^2
2: x^2 + 6x + 9 = - 7 + 9 This might be a 2
2: x^2 + 6x + 9 = 2
3: (x + 3)^2 = 2
4: √(x + 3)^2 = √2
5: x + 3 = +/- √2
6: x = -3 +/- √2
Related Questions
The figure below is formed from a trapezoid and a right triangle.
E
9 cm
F
15 cm
G
15 cm
12 cm
20 cm
H
What is the total area of the figure?
O A. 240 cm2
OB. 264 cm?
OC. 288 cm2
OD. 300 cm
Answers
Answer: I think 288
Step-by-step explanation:
A worker is paid Rs. 2600 for 21 days work. If his total income of the month is Rs. 2400, for how many days he didn't work? I need it please
Answers
Step-by-step explanation:
please mark me as brainlest chelli
Help please this is due soon zzzzzzszzsszzndbdbdjdbdndn
Answers
P = 40 + 12 + 28 + 16 + 12 + 28
P = 136 ft.
Attached solved problem.
Consider marking "Brainliest".
Thank you.
Helena’s family drank 4,600 milliliters of milk for breakfast on Friday. On Saturday they drank 2 times as much milk as they did on Friday. how many liters of milk did they drink in total?
Answers
Answer:
9.2 liters of milk
Step-by-step explanation:
4600 * 2 = 9200
9200 milliliters = 9.2 liters
Find the measure of angle BAD 53% 21%
Answers
Answer:
Can I see a picture? Or the angle diagram?
9^6/9^6 simplify please i need a lot of help
Answers
Answer:
The answer is 1
Step-by-step explanation:
A factory machine produces kilograms of chocolate every minutes.
At what rate does the machine produce chocolate?
Answers
Answer:
1,000g:60sec
or 10 gram every singular second.
Step-by-step explanation:
20. The diagram shows a supplementary angle. Determine the value of x. *
Answers
Answer:
C
Step-by-step explanation:
supplementary angles sum to 180° , then
3x + 15 + 60 = 180 , that is
3x + 75 = 180 ( subtract 75 from both sides )
3x = 105 ( divide both sides by 3 )
x = 35
The ratio of the sides of a triangle is 2:4:7. If the perimeter of the triangle is 182 cm what is the longest side?
Answers
Answer:
98 cm
Step-by-step explanation:
sum the parts of the ratio , 2 + 4 + 7 = 13 parts
divide perimeter by 13 to find the value of one part of the ratio.
182 ÷ 13 = 14 cm ← value of 1 part of the ratio , then
2 parts = 2 × 14 = 28 cm
4 parts = 4 × 14 = 56 cm
7 parts = 7 × 14 = 98 cm
the longest side is 98 cm
The rid Daaé’s Grave is 6min long. Dave thinks that the first ¼ of the ride was the most fun. How many minutes were the most fun for Dave. Solve Algebraically.
100 points first correct answer gets Brainlyest.
Answers
Answer:
Dave had most fun for 1.5 minutes.
explanation:
Let the "fun time" be f
total time * portion of time fun = fun time
[tex]\sf t * p = f[/tex]
[tex]\sf 6 \ * \frac{1}{4} = f[/tex]
[tex]\sf \frac{6}{4} = f[/tex]
[tex]\sf f = 1.5 \ minutes[/tex]
Question was for how many minutes, Dave had fun, so he had fun for 1.5 minutes
Let that half be x
So
[tex]\\ \rm\Rrightarrow x(4)=6min[/tex]
[tex]\\ \rm\Rrightarrow x=6/4[/tex]
[tex]\\ \rm\Rrightarrow x=1.5min[/tex]
Please help fast!!! Part A How many solutions does the pair of equations for lines A and B have?
Explain your answer. (5 points)
Part What is the solution to the equations of lines A and B?
Explain your answer. (5 points)
Answers
Answer:
Part A: 1
Explain: The solution for a pair of lines is where they intersect.
Part B: (3,4)
Explain: (3,4) is the place where the lines intersect.
Which linear equation has no solution?
3/2 (9x +6) 3
5x + 12 = 5x -7
4x + 7 = 3x + 7
-3(2x - 5) = 15 - 6x
Answers
9514 1404 393
Answer:
5x + 12 = 5x - 7
Step-by-step explanation:
There will be no solution when the coefficients of x are the same on both sides of the equal sign and the constants are different. That is the case for ...
5x + 12 = 5x - 7
This reduces to ...
19 = 0 . . . . . no value of x will make this be true: NO SOLUTION
There are 2,100 bacteria in a circular petri dish. The dish has a radius of 40 millimeters. What is the approximate population density? (Use 3. 14 for π) Area of a circle = πr2 0. 02 bacteria per square millimeter 0. 42 bacteria per square millimeter 2. 39 bacteria per square millimeter 52. 5 bacteria per square millimeter.
Answers
Answer:
B) 0.42
Step-by-step explanation:
population density=number of people/square units
we plug in 2,100 for the first one but we don't know the second one for that we need the area which is A=π[tex]r^{2}[/tex] so the radius is 40 millimeters so [tex]40^{2}[/tex] =1600 1600*π=5024
2,100/5024=0.417 round it up and it is 0.42
so B) 0.42 is the answer
My teacher wants me to write the angles of a circle what are they?
Answers
If you mean the angles in a circle then I would recommend looking at the unit circle
Answer:
Well the only answer to this question that I can think of is 360 that's because all of the angles in a circle are equal to 360.
Step-by-step explanation:
If a basketball player made 72 out of 85 free throws attempts how many could she make in 200 attempts
Answers
Answer:
169
Step-by-step explanation:
Use a proportion:
72/85=x/200
Solve for x
(72)(200)=85x
x=(72)(200)/85
x=169.41≈ 169
She can make 169 of 200 free throws.
2.5 as a mixed number but the 5 is repeating
Answers
Answer:
[tex]2\frac{5}{9}[/tex]
Step-by-step explanation:
Hi !
2.(5) = 2 5/9
Good luck !
What is the value of x?
o x=2
o x=3
o x=4
o x=6
Answers
Answer: x=3
Step-by-step explanation:
The product of c and 3 is greater than -26
Answers
Answer:
The given phrase "The product of c and 3" can be converted into an algebraic equation as C (times) 3
Step-by-step explanation:
I might be wrong but i rlly hope this helps u in some way :)
Answer:
[tex]3c > -26[/tex]
Step-by-step explanation:
"The product of c and 3" means to multiply c with 3: [tex]c * 3[/tex] or [tex]3c[/tex]
"is greater than": [tex]>[/tex]
"-26": -26
Put the terms together:
"The product of c and 3 is greater than 3": [tex]3c > -26[/tex]
(-3/8) times 1 times (-9/10) times -8/3
Answers
Step-by-step explanation:
-3/8 × 1 × -9/10 × -8/3
we know
- × - = +
+ × - = -
therefore, since we have 3 negative factors we get a negative result.
we can ignore the completely neutral multiplication by 1.
-3/8 × -9/10 × -8/3 = -(3×9×8)/(8×10×3) = -9/10
Can someone please help?!
Answers
Answer:
Go to symbolab . com and enter in the problems, it will give you the answers and show you the steps it took to solve them
Step-by-step explanation:
WHOEVER ANSER'S THIS WILL GET THE BRAINLESS!!!!!!!!! NEED ANSWER ASAP
Answers
Answer:
I think the last one?
Step-by-step explanation:
How to find area and circumference
Answers
Answer:
Step-by-step explanation:
Circumference: Pi(D)
Circumference: 3.14x30
Circumference: 94.2
Area: Pi(R)^2
Area: 3.14x15^2
Area: 3.14x225
Area: 706.5
Me podrian ayudar con ese ejercisio por favor?? Me salvarian 4. Dadas las sucesiones de término general an = n + 3 y bn = 5n − 1 , realiza las siguientes operaciones: a) an – bn b) an + 3bn 5. Escribe los ocho primeros términos de la sucesión ( an ) dada por: a1 = 1, a2 = 1, an = an−1 + an−2
Answers
Explicación paso a paso:
Dado
an = n + 3
bn = 5n-1
a) an-bn = n + 3- (5n-1)
= n + 3-5n + 1
= n-5n + 3 + 1
= -4n + 4
an-bn = 4-4n
b) an + 3bn = (n + 3) +3 (5n-1)
= n + 3 + 3 (5n) +3 (-1)
= n + 3 + 15n-3
= n + 15n + 3-3
= 16n + 0
= 16n
an + 3bn = 16n
3) Dado a1 = 1, a2 = 1
an = an-1 + an-2
Debemos escribir los primeros ocho términos de la secuencia.
a3 = a3-1 + a3-2
a3 = a2 + a1
a3 = 1 + 1
a3 = 2
a4 = a3 + a2
a4 = 2 + 1
a4 = 3
a5 = a4 + a3
a5 = 3 + 2
a5 = 5
a6 = a5 + a4
a6 = 5 + 3
a6 = 8
a7 = a6-a5
a7 = 8 + 5
a7 = 13
a8 = a7 + a6
a8 = 13 + 8
a8 = 21
Por tanto, los primeros ocho términos de la secuencia son 1, 1, 2, 3, 5, 8, 13 y 21
The measures of the angles of a triangle are shown in the figure below . Solve for x
Answers
Answer:
180=90+63+4x+3
6=x
Step-by-step explanation:
HELPPPPPPPPPPPPPPPPPPPPPPPPP
Answers
Write two equivalent ratios to 10:14
Answers
Answer:
20:28 and 30:42
Step-by-step explanation:
Answer:
[see below]
Step-by-step explanation:
10/2 : 14/2 = 5:7
10 * 2 : 14 * 2 = 20:28
Hope this helps.
Solve 2y + 17 = 6y + 5
Answers
Answer:
3
Step-by-step explanation:
2y - 6y = 5 - 17
-4y = -12
y = 3
Hope it helps u!
Solve for y when x = 2. y = 4x +2 * I REALLY NEED HELP HHDJDICUHDHHEI HELP ME BRUH
Answers
Answer:
y=10
Step-by-step explanation:
y=4x+2
y=4(2)+2
y=8+2
y=10
Answer:
y=10
Step-by-step explanation:
plug-in 2 to x
[tex]y=4(2)+2[/tex]
multiply 4 and 2
[tex]y=8+2[/tex]
add 8 and 2
[tex]y=10[/tex]
Find the sum 3x^2/x-8 + 6x/x-8
Answers
Answer:
Step-by-step explanation:
STEP
1
:
x
Simplify —
x
Equation at the end of step
1
:
(3•(x2))
————————+((6•1)-8)
(x-8)
STEP
2
:
Equation at the end of step
2
:
3x2
——————— + -2
(x - 8)
STEP
3
:
3x2
Simplify —————
x - 8
Equation at the end of step
3
:
3x2
————— + -2
x - 8
STEP
4
:
Rewriting the whole as an Equivalent Fraction
4.1 Adding a whole to a fraction
Rewrite the whole as a fraction using (x-8) as the denominator :
-2 -2 • (x - 8)
-2 = —— = ————————————
1 (x - 8)
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
4.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
3x2 + -2 • (x-8) 3x2 - 2x + 16
———————————————— = —————————————
1 • (x-8) 1 • (x - 8)
Trying to factor by splitting the middle term
4.3 Factoring 3x2 - 2x + 16
The first term is, 3x2 its coefficient is 3 .
The middle term is, -2x its coefficient is -2 .
The last term, "the constant", is +16
Step-1 : Multiply the coefficient of the first term by the constant 3 • 16 = 48
Step-2 : Find two factors of 48 whose sum equals the coefficient of the middle term, which is -2 .
-48 + -1 = -49
-24 + -2 = -26
-16 + -3 = -19
-12 + -4 = -16
-8 + -6 = -14
-6 + -8 = -14
A train leaves Boston at 10:20 AM and arrives in Stamford at 1:00 PM. Find the distance between the stations if the average speed of the train is 60 mph
Answers
Answer: 160 miles
Step-by-step explanation: From 10:20 to 12:20 is 2 hours which is 120 minutes and it is 60mph so it is 1 mile per minute. 12:20 to 1:00 is 40 minutes so you add 40 to 120 which makes it 160. So the answer is 160 miles