8.
Find the number of real number solutions for the equation. x2 – 10x + 25 = 0
A. 0
B. 1
C. 2
D. cannot be determined
Answers
Answer:
B. 1
Step-by-step explanation:
Answer:
Option B is correct
The number of real number solutions for the given equation is, 1.
Step-by-step explanation:
Given the equation:
Since, this is a quadratic equation of the form of
where a =1 , b = -10 and c =25.
The discriminant of a quadratic equation is,
then;
Discriminant = = (100-100) = 0
Since, a discriminant of zero means there is only one real solution for x.
Substitute the given values.
Simplify:
x = 5
Therefore, the number of real solution for the given equation is, 1
Related Questions
A sailboat travels a distance of miles in of an hour. Which complex fraction represents the unit rate in miles per hour?
Answers
Answer: I think its D and A
Step-by-step explanation:
Answer:
im pretty sure its D and also A
Step-by-step explanation:
order of operations. please help!
Answers
Look below :)
Everything is underneath, ty. Just need an answer by Wednesday
Answers
Answer:
Step-by-step explanation:
[tex]\dfrac{3}{6}=\dfrac{9}{18}=\dfrac{27}{54}[/tex]
[tex]\dfrac{3*3}{6*3}=\dfrac{9}{18}\\\\\\\dfrac{3*9}{6*9}=\dfrac{27}{54}[/tex]
need some help with 8th grade math
Answers
Answer:
D = (3,3)
E = (-5,0)
F = (-2,2)
Step-by-step explanation:
the y axis is the vertical line of the graph so an example of flipping would be (-3,5) turns to (3,5) changing only the x value same the other way around (5,-9) turns to (-5,9) only the x value changes symbol
Answer:
D1 = (3, 3) E1 = (-5, 0) F = (-2, -2)
Step-by-step explanation:
D1 = (3, 3)
E1 = (-5, 0)
F = (-2, -2)
what is the constant of the proportionality in the equation y = 7x
Answers
Answer:
7
Step-by-step explanation:
The equation of direction variation is
y = kx where k is the constant of variation
y = 7x so 7 is the constant of variation
Answer:
7
Step-by-step explanation:
The equation of direction variation:-
y = kx where k is the constant of variation -> Eq 1
y = 7x -> Eq 2
Comparing Eq 1 and Eq 2,
k=7
Amy owes her mother $76. She pays her mother $14 on Sunday and $24 on Monday. Use an expression to describe the situation. How much does Amy still owe her mother?
Answers
Answer:
Amy still owes her mother $38.
Step-by-step explanation:
76 - 14 - 24
76 - 14 = 62
62 - 24 = 38
A boy is 12 years old his mother is four times as old as he is in x years time the mother will be three times as old as. the son form an equation in x and hence find x
plzzzzzzz help
Answers
Answer:
age of boy = 12
age of mother = 4 times age of boy = 4*12 = 48
let x = years time
3(12+x) = 48+x
36+3x = 48+x
3x-x = 48-36
2x = 12
x = 6
In 6 years time the mother will be three times as old as the son.
pleasexmark me as brainlist
Amaya wants to jog 8 Miles this week she has jog 2 1/2 miles on Monday and 3 2/5 miles on Wednesday how many miles does amaya still need to jog to meet her goal
Answers
Answer:
2 1/10 miles.
Step-by-step explanation:
She has already jogged 2 1/2 + 3 2/5 miles. This is 2 5/10 + 3 4/10 or 5 9/10. 8 miles is also equal to 7 10/10 miles. So, to find the remaining amount of miles, we can do 7 10/10 - 5 9/10 = 2 1/10.
Amaya still needs 2.1 miles to jog to meet her goal.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
Operators who let do basic mathematical calculations.
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 4 -2 = 2
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
Given that this week she has jog 2 1/2 miles on Monday and 3 2/5 miles on Wednesday
She has already jogged 2 1/2 + 3 2/5 miles.
⇒ [tex]2\dfrac{1}{2} + 3\dfrac{2}{5} = \dfrac{5}{2} + \dfrac{17}{5}[/tex]
Convert fractions into decimals,
⇒ 2.5+3.4
Apply the arithmetic operation,
⇒ 5.9
So, to find the remaining amount of miles,
⇒ 8 -5.9 = 2.1
Hence, Amaya still needs 2.1 miles to jog to meet her goal.
Learn more about Arithmetic operations here:
brainly.com/question/25834626
#SPJ2
How would I prove the congruency of these triangles?
Answers
Answer:
SAS
Step-by-step explanation:
line AB = line CD S = SIDE
AB = CD because the shape is a parallelogram and opposite sides of a parallelogram are equal.
Hence, proved AB = CD
Answer:
Step-by-step explanation:
In ΔADC & ΔABC,
Statement Reason
AD = BC Given
∠DAC ≅ ∠ACB {AB // BC , AC is transversal, ⇒ alternate interior angles are equal}
AC = CA Reflexive property
ΔADC ≅ ΔABC SAS congruent
AB = CD CPCT -> Corresponding Part of Congruent Triangles
The size of a population of fish in a pond is modeled by the function P, where P(t) gives the number of fish and t gives the number of years after the first year of introduction of the fish to the pond for 0≤t≤10. The graph of the function P and the line tangent to P at t=4 are shown above. Which of the following gives the best estimate for the instantaneous rate of change of P at t=4 ?
Answers
The slope (m) will be "279.33". A further solution to the question is provided below.
At one moment this same instantaneous modification rate would be the same with the functionality derivative assessed somewhere at the time. In certain other terms, the pitch of such tangent line towards the curvature is somewhere at a level equivalent to that as well.
According to the question,
(x₁, y₁) = (3, 0)(x₂, y₂) = (6, 838)As we know,
⇒ [tex]Slope (m) = \frac{y_2-y_1}{x_2-x_1}[/tex]
By substituting the values, we get
⇒ [tex]=\frac{838-0}{6-3}[/tex]
⇒ [tex]=\frac{838}{3}[/tex]
⇒ [tex]=279.33[/tex]
Learn more:
https://brainly.com/question/16736357
The instantaneous rate of change is the rate of change at a particular point or instant in the graph. The instantaneous rate of change of P at [tex]t=4[/tex] is 250
I've added as an attachment, the graph that represents the population of the fish.
To determine the instantaneous rate of change at [tex]t=4[/tex], we simply calculate the slope (m) of the tangent line using:
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
Because of the scale of the graph, I will use the following estimated points from the tangent line
[tex](x_1,y_1) = (3,0)[/tex]
[tex](x_2,y_2) = (4,250)[/tex]
So, the slope is:
[tex]m = \frac{250 - 0}{4 - 3}[/tex]
[tex]m = \frac{250}{1}[/tex]
[tex]m = 250[/tex]
Hence, the instantaneous rate of change of P at [tex]t=4[/tex] is 250
Read more about instantaneous rate of change at:
https://brainly.com/question/4746888
answer choices:
A. 98
B. 72
C. 44
D. 42
Answers
Answer:
B
Step-by-step explanation:
The volume (V) of the triangular prism is calculated as
V = Bh ( B is the area of the triangular base and h the height )
B = [tex]\frac{1}{2}[/tex] bh
Here b = 8 and h = 6 ( perpendicular legs )
B = [tex]\frac{1}{2}[/tex] × 8 × 6 = 4 × 6 = 24 ft² , then
V = 24 × 3 = 72 ft³ → B
Solve 3x − x + 2 = 12.
Answers
2x=12_2 2x=10 x=5 that answer
3 3/4÷3/4
pls I need this for my tuition in 5 min
Answers
Step-by-step explanation:
15/4÷3/4
15/4×4/3 (2 reciprocal of 3 upon 4)
5/1
or 4 1/1 Answer
4,4 will be cancelled 15 will be cancelled by 3
18
A company is expanding its building area from 16,500 square feet to 22,605 square feet. What is the percentage increase of the
area of the building space?
Answers
the answer is 37%
: 16500*37%= 6150
6150+16500=22605 :correct
Refer to the number line. Find the coordinate of point H that is 1/5 of the distance from C to F.
A B C
DEF
-7-6-5-4-3-2-1 0 1 2 3 4 5 6 7
Answers
Number lines are used to represent numbers on a line at regular intervals. The coordinate of point H is -2.2
From the number line, we have:
[tex]C = -4[/tex]
[tex]F = 5[/tex]
First, we calculate the distance between C and F using absolute functions
[tex]CF = |C - F|[/tex]
[tex]CF = |-4- 5|[/tex]
[tex]CF = |-9|[/tex]
Remove absolute bracket
[tex]CF = 9[/tex]
Point H is [tex]\frac 15[/tex] of the distance so, we have:
[tex]H = \frac 15 CF[/tex]
[tex]H = \frac 15 \times 9[/tex]
[tex]H = 1.8[/tex]
This means that point H is 1.8 from the right of C.
So, the coordinate of H is:
[tex]H = C + 1.8[/tex]
[tex]H = -4 + 1.8[/tex]
[tex]H = -2.2[/tex]
Hence, the coordinate of point H is -2.2
Read more about number lines at:
https://brainly.com/question/3677894
A(-2,3)
Triangle ABC has vertices at A(-2,3), B(-3,6), and
C(2,-1) Is triangle ABC a night triangle? If so, which
angle is the night angle?
O No, the triangle has no right angles.
O Yes, the right angle is angle A
O Yes, the right angle is angle B
O Yes, the right angle is angle C
VA
C (2-1)
B (-3,-6)
Answers
second choice i’m prolly wrong
IF A= { a, b, c d and B={a,b,c,d}
how can I solve this
Answers
Answer:
what we have to prove or equation ?
Which represents a unit rate ?
A. The cost of cat food is $36 per 3 bags
B. The cost of orange juice is $3 per jug
C. The cost of photocopies is $1 per 10 pages
D. The cost of roses is $50 per 2 dozen
Answers
B. The cost of orange juice is $3 per jug
A unit rate, in terms of mathematics, is a rate per unit.
Examples of unit rates are:
The car travels 25 km per hour
The cost of bags of apples is $6.00 per bag of apples.
The unit rate in these choices is Choice B:
The cost of orange juice is $3 per jug
The other choices are rates, not unit rates.
Please help me it's the lateral area of a cone along with the surface area
Answers
Answer:
the lateral area of cone is L=A﹣πr2
the surface area of cone is
[tex]a = \pi \: r \sqrt{h^{2} + r {}^{2} }[/tex]
what is six over seven times two and three over fourteen?
Answers
and seven is equal to six times a number.
Word problems can be tricky no matter what level of math or science you are in.
First look at the question for words that indicate mathematical symbols.
"times" indicates multiplication
"and" indicates addition
"a number" means we have a variable, x, to solve for
Now we can go from left to right and write it in a mathematical equation
7x + 7 = 6x
Then, solve for x
7x + 7 = 6x
7 = 6x - 7x
7 = -1x
7/-1 = x
x = -7
Finally, we check our work.
7x + 7 = 6x
7(-7) + 7 = 6(-7)
-49 + 7 = -42
-42 = -42 √
The answer is x = -7
Upvote2Downvote
Add comment
More

Parviz F. answered • 02/11/14
TUTOR
4.8 (4)
Mathematics professor at Community Colleges
SEE TUTORS LIKE THIS
First thing you do in word problems : choose a variable for unknown, what problem is asked you to find.
n the number
7n 7 times the number
7n + 7 7 times the number and 7
Then the problem says it is equal 6n , make the equation
7n + 7 = 6n
and solve:
7n - 6n = -7
n = -7 / is the answer
Upvote1Downvote
Add comment
More
KERITHA C. answered • 02/25/18
TUTOR
New to Wyzant
SEE TUTORS LIKE THIS
If 1 is added to seven times a number, the result is equal to 2 more than six times the number. Find the number.
Upvote0Downvote
Add comment
More

Rodney S. answered • 02/16/14
TUTOR
5 (3)
Certified Math Teacher (Grades 6 and Up) for Hire
ABOUT THIS TUTOR ›
Seven times a number and seven is equal to six times a number.
Step 1: Translate the verbal to Algebra.
7x + 7 = 6x. ("And" means addition if no other operation is present.)
Step 2: Solve for x.
7x - 6x + 7 = 6x - 6x. (subtract 6x from both sides)
1x + 7 = 0. (Simplify)
1x + 7 - 7 = 0 - 7. (subtract 7 from both sides)
1x = -7. (Simplify)
1x/1 = -7/1. (Divide both sides by 1)
x = -7. (Simplify)
Step 3: Check 7 times the number -7 and 7 is equal to six times the number -7.
7(-7) + 7 = 6(-7)
-49 + 7 = -42
-42 = -42. (Both sides are equal!)
The number again is -7.
Upvote0Downvote
Add comment
More

Vivian L. answered • 02/10/14
TUTOR
3 (1)
Microsoft Word/Excel/Outlook, essay composition, math; I LOVE TO TEACH
SEE TUTORS LIKE THIS
Hi Alyson;
7x+7=6x
Let's subtract 7x from both sides...
7x+7-7x=6x-7x
7=-x
Let's multiply both sides by -1...
(-1)(7)=(-1)(-x)
-7=x
Let's check our work...
7x+7=6x
[(7)(-7)]+7=(6)(-7)
-49+7=-42
-42=-42
Upvote0Downvote
Add comment
More
Still looking for help? Get the right answer, fast.
ASK A QUESTION FOR FREE
Get a free answer to a quick problem.
Most questions answered within 4 hours.
FIND AN ONLINE TUTOR NOW
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
RELATED TOPICS
MATH ALGEBRA 1 ALGEBRA 2 CALCULUS GEOMETRY PRECALCULUS ALGEBRA FRACTIONS EQUATIONS LINEAR EQUATIONS ...
RELATED QUESTIONS
how can you make math seem fun when you are trying to each someone?
Answers · 8
negative exponents and negative numbers
Answers · 4
2 questions I want to verify
Answers · 4
im going to give and example: 7(b+3) would the answer be -8z?
Answers · 4
12-7*6+19-14=11
Show work please
[tex] \sqrt{ \frac{45}{5} } [/tex]
Answers
Answer: 3
Step-by-step explanation:
[tex]\sqrt{ \dfrac{45}{5}} =\sqrt{9}=\bold3[/tex]
Answer:
3
Step-by-step explanation:
We don't really need to simplify this, but if you do:
45/5 is the same as 45 ÷ 5 so
45/5 = 9
Now we have to find the square root of 45/5(or 9). The square root of a number(x for example) is the number(y) that multiplied by itself once will equal x or y · y = x.
For this you can use a calculator:
[tex]\sqrt{\frac{45}{5} }[/tex] = 3
or
[tex]\sqrt{9}[/tex] = 3
A rectangle has perimeter 56 cm and length 21 cm. What is its width?
Answers
hhhhhhhhhhh
Answer:
width=7 cm
Step-by-step explanation:
perimeter=2(lengths+width)
56 =2(21+x)
56 =42+2x
56-42 =2x
2x = 14
x =7
therefore the width=7 cm
factorize the following questions
1. a^8-b^8
2. 32y^4 - 162
Answers
Answer:
1. [tex]2(16 {y}^{4} - 81)[/tex]
2. [tex]2(2y - 3) \times (2y + 3) \times (4 {y}^{2} + 9)[/tex]
Step-by-step explanation:
1. [tex] a^{8} - {b}^{8} [/tex]
➡️ [tex]( {a}^{4} - {b}^{4} ) \times ( {a}^{4} + {b}^{4} )[/tex]
➡️ [tex]( {a}^{2} - {b}^{2} ) \times ( {a}^{2} + {b}^{2} ) \times ( {a}^{4} + {b}^{4} )[/tex]
➡️ [tex](a - b) \times (a + b) \times ( {a}^{2} + {b}^{2} ) \times ( {a}^{4} + {b}^{4} )[/tex]
➡️ [tex]2(16 {y}^{4} - 81)[/tex] ✅
---------------------------------------------------
2. [tex] 32 {y}^{4} - 162[/tex]
➡️ [tex] 2(16y^{4} - 81)[/tex]
➡️ [tex]2(4 {y}^{2} - 9) \times (4 {y}^{2} + 9)[/tex]
➡️ [tex]2(2y - 3) \times (2y + 3) \times (4 {y}^{2} + 9)[/tex] ✅
How many significant figures does 4857.169 have?
Answers
Answer:
Significant Figures
7
4857.169
Decimals
3
4857.169
Scientific Notation
4.857169 × 103
E-Notation
4.857169e+3
Words
four thousand eight hundred fifty-seven point one six nine
Explanation: Mark Brainliest plz
Answer:
plz mark me as a brainliest i really need it
Step-by-step explanation:
4857.169
Sig Figs
7
4857.169
Decimals
3
4857.169
Scientific Notation
4.857169 × 103
E-Notation
4.857169e+3
Words
four thousand eight hundred fifty-seven point one six nine
If PQ = 6x - 1 and PR = 15x - 29,
then QR = ?
Answers
Explanation:
PR - PQ = QR
15x - 29 - 6x + 1 = QR
9x - 28 = QR
express each of the following in standard form 0.000000000221
Answers
Answer:
[tex]2.21 \times {10}^{ - 10} [/tex]
Step-by-step explanation:
When we shift (.) from left to right in scientific notarion, the power of 10 varies in negative numbers according to how many numbers we shift.
Cuanto da √(1 ÷ 6^2 - 1 ÷ 10^2)
Answers
Answer:
It is 2/15
Step-by-step explanation:
[tex] = \sqrt{ \frac{1}{ {6}^{2} } - \frac{1}{ {10}^{2} } } \\ \\ = \sqrt{ \frac{4}{225} } \\ \\ = \frac{ \sqrt{4} }{ \sqrt{225} } \\ \\ = \frac{2}{15} [/tex]
PLS HELP WILL MARK AS BRAINLIEST
Answers
Answer:
SEE THE IMAGE FOR SOLUTION .
HAVE A GREAT DAY
Answer:
11. D
12. C
13. D
14. B
15. E
Step-by-step explanation:
11.
1/3 + 1/2 = 2/6 + 3/6 = 5/6
A is 3/4
B is 2/3
C is 9/10
D is 4/5
E is 2/5
the closest to 5/6 is 4/5.
12.
this is totally easy. just simply additions and one subtraction (to see what is left).
8+10+9 = 27
so, he has
60 - 27 = 33 hours left
13.
the mean value of a series of equal weighted numbers is simply their sum divided by the amount of numbers.
so,
(2+5+3+6+4)/5 = 20/5 = 4
14.
a scale factor is always applied to all dimensions, otherwise the result will be distorted. and that would be especially bad for a map.
so, clearly the width of the larger map is 3 times the width of the smaller map. therefore, the length of the larger map has to be also 3 fine the length of the smaller map.
3×6 = 18
15.
3t - 10 = 8
3t = 18
t = 6
Change 3224in^2 to cm^3
Answers
Answer:
98
Step-by-step explanation:
show work
note that one movable point always defines an extremum point
Answers
Answer:
And
Step-by-step explanation:
Noted Sir. Thanks A Lot 2 U