Answer:
c = 196
Step-by-step explanation:
To obtain a perfect square trinomial
Add ( half the coefficient of the x- term )² to x² + 28x
x² + 2(14)x + (14)², that is
x² + 28x + 196
= (x + 14)² ← a perfect square
Answer:
c = 196
Step-by-step explanation:
28 /2 = 14
14 x 14 = 196
formula =( b/2) x 2
Do values of these triangles form right triangles or not using Pythagorean theorem
Answer:
Yes
Yes
No
Step-by-step explanation:
9-12-15 is just a dilation of a 3-4-5, which is right.
6-8-10 is also a dilation of 3-4-5.
However, 2-4-6 is not a triangle. In fact, it's just a line segment, because 2+4=6
:) The cost price of 11 pencils is equal to the selling price of 10 pencils. Find the gain
or loss per cent.
Answer:
You are losing 9 percent for every cent or 0.09cents per cent.
Step-by-step explanation:
Step-by-step explanation:
❅ [tex] \underline{ \underline{ \text{Given}}} : [/tex]
CP of 11 pencils = SP of 10 pencils❅ [tex] \underline{ \underline{ \text{To \: find}}}: [/tex]
Gain percent or loss percent✻ [tex] \underline{ \underline{ \text{Solution}}} : [/tex]
[tex] \sf{CP\: of \: 1 \: pencil = x \: ( \: suppose}) [/tex]
[tex] \sf{CP \: of \: 11 \: pencils = 11x}[/tex]
[tex] \sf{SP \: of \: 10 \: pencils = 11x}[/tex] { Since CP of 15 articles is equal to SP of 12 )
[tex] \sf{SP \: of \: 1 \: pencil = \frac{11}{10} x}[/tex]
Here , SP > CP. So, He / she made a profit.
[tex] \boxed{ \sf{Profit = SP - CP}}[/tex]
⟿ [tex] \sf{ \frac{11}{10} x - x}[/tex]
⟿ [tex] \sf{ \frac{11x - 10x}{10}} [/tex]
⟿ [tex] \sf{ \frac{x}{10} }[/tex]
Now , Finding the profit percentage :
[tex] \boxed{ \sf{Profit\% \: = \frac{Profit}{CP} \times 100\%}}[/tex]
⟿ [tex] \sf{ \frac{ \frac{x}{10} }{x} } \times 100\%[/tex]
⟿[tex] \sf{ \frac{x}{10} \times \frac{1}{x} \times 100\%}[/tex]
⟿ [tex] \sf{ \frac{ \cancel{x}}{10} \times \frac{1}{ \cancel{x} } \times 100\%}[/tex]
⟿ [tex] \sf{ \frac{1}{10} \times 100\%}[/tex]
⟿ [tex] \boxed{ \sf{10\%}}[/tex]
[tex] \purple{ \boxed{ \boxed{ \tt{⇢Our \: final \: answer : 10\% \: \: profit}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ツ
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if f(x) = 5x^3 - 2, then what is the remainder when f(x) is divided by x + 2
Answer: -12
Step-by-step explanation: use synthetic division
Answer: -42
Step-by-step explanation:
Please help me!!!!!!!!!!
Answer:
it think it is D
Step-by-step explanation:
just take one of the number and move it for example 4x right and 2y up and then look at where the connection is.
PLease help me plz i really need this
Answer:24:16
60:40
28:56
108:36
Step-by-step explanation:3:2
12:8
24:16
60:40
28:56
108:36
The bold numbers is the answer to all the missing blank:)
what inequality does this graph represent?
Identify the coefficient and the number of terms in the
following expression.
152 +8
A.) Coefficient: , number of terms: 1
B.) Coefficient: 2, number of terms: 2
C.) Coefficient: 8, number of terms: 1
D.) Coefficient: 15, number of terms: 2
Answer:
The answer is A because there are no coefficients which is a letter and 1 term.
Inverse of t = (120r)/(r+120)
9514 1404 393
Answer:
r = 120t/(120 -t)
Step-by-step explanation:
Given t = f(r), solve for r.
[tex]t(r+120)=120r \qquad\text{multiply by $r+120$}\\\\rt+120t=120r \qquad\text{eliminate parentheses}\\\\rt-120r=-120t \qquad\text{subtract $120t+120r$}\\\\r(t-120)=-120t \qquad\text{factor}\\\\r=\dfrac{-120t}{t-120} \qquad\text{divide by $t-120$}\\\\\boxed{r=\dfrac{120t}{120-t}} \qquad\text{negate numerator and denominator}[/tex]
A circle above has a radius of 6 cm. What is the area of the circle?
Use = 3.14.
Answer:
113.04
Step-by-step explanation:
formula for area is
pi times radius times radius
if the radius is 6,
do 6 times 6=36
36 times 3.14=113.04
Which equation represents a line that passes through the point ( 6 , − 3 ) and is parallel to the graph of y = 3 x + 1 ?
Answer:
y + 3= 3(x - 6) ← point-slope form
y = 3x - 21 ← slope-intercept form
3x - y = 21 ← standard form
Step-by-step explanation:
The point-slope form of the equation of line it's y - y₁ = m(x - x₁), where m is the slope and (x₁, y₁) is the point the line passing through.
y=m₁x+b₁ ║ y=m₂x+b₂ ⇔ m₁ = m₂
{Two lines are parallel if their slopes are equal}
y = 3x + 1 ⇒ m₁ = 3 ⇒ m₂ = 3
(6, -3) ⇒ x₁ = 6, y₁ = -3
point-slope form:
y - (-3) = 3(x - 6)
y + 3 = 3(x - 6)
y + 3 = 3x - 18 {subtact 3 from both sides}
y = 3x - 21 ← slope-intercept form
-3x + y = -21 {multiply both sides by (-1)}
3x - y = 21 ← standard form
How many groups of 1/2 are in 3 1/2
Answer:
7
Step-by-step explanation:
each 1 has 2 in it
so 3x2=6
add the extra half
6+1=7
2
Select the correct answer from each drop-down menu.
Simplify the given polynomial and use it to complete the statement.
(-512 – 2x + 4) + (872 – 1 – 1) - (x + 2) (1 – 5)
The polynomial simplifies to an expression that is a
with a degree of
Reset
Next
Pretty sure the problem above is wrong so refer to the picture of your trying to solve thx!!
Answer:
[tex]2x^2+13[/tex]
Step-by-step explanation:
Given
[tex](-5x^2-2x+4)+(8x^2-x-1)-(x+2)(x-5)[/tex]
Required
Simplify
Expand brackets
[tex](-5x^2-2x+4)+(8x^2-x-1)-(x^2-5x+2x-10)[/tex]
[tex](-5x^2-2x+4)+(8x^2-x-1)-(x^2-3x-10)[/tex]
Open all brackets
[tex]-5x^2-2x+4+8x^2-x-1-x^2+3x+10[/tex]
Collect Like Terms
[tex]-5x^2+8x^2-x^2-2x-x+3x+4-1+10[/tex]
[tex]2x^2+13[/tex]
Hence, the polynomial simplifies to [tex]2x^2+13[/tex] and it has a degree of 2
worth 20 points !! need help asap !
Which of the points are solutions to the inequality?
Check all that apply.
0 (-3, 3)
0 (-2,-2)
0 (-1, 1)
0 (0, 1)
O (2,5)
Answer:
all boxes except first should be checked
Step-by-step explanation:
the shaded area contains all solutions
see if each ordered pair resides in the solution area
.... .find x .....
Answer: 120 degrees
Step-by-step explanation: a circle always has a total of 360 degrees
The perimeter of a rectangular window is 348 cm. If the length of the window is 95cm, what is its width?
y = –3x + 6
y = 9
What is the solution to the system of equations?
(–21, 9)
(9, –21)
(–1, 9)
(9, –1)
Answer:
(-1, 9)
Step-by-step explanation:
given
[tex]y = - 3x + 6 \\ and \\ y = 9 \\ then \: we \: need \: to :\ find \: x \: so \: that \: when \: plugged \\ to \: - 3x + 6 \: the \: result \: is \: 9 \\ by \: transitive \: rule \\ y = 9 = - 3x + 6 \\ 9 = - 3x + 6 \: (substract \: both \: sides \: with \: 6) \\ 3 = - 3x \: (divides \: both \: sides \: with \: - 3) \\ - 1 = x[/tex]
Answer:
the answer is c
Step-by-step explanation:
because i just took the test
According to Foolproof, by not negotiating the price of your first car purchase, you have a $1,000 "bad" money burn. How long would it take you to earn back the thousand dollars you just threw away if you take home $10.00 per hour? State in terms of how many hours it would take to earn back that money, and explain how you calculated this answer.
Answer:
Time required to save 1000$ is 100 hours
Step-by-step explanation:
Money wasted = 1000$
savings = 10.00$ per hour
using unitary method
if i am saving 10.00 $ per hour then let in t hours i save 1000$
⇒ 10.00 x t = 1000
dividing above equation by 10 we get,
⇒ t = 100 hours
Therefore, Time required to save 1000$ is 100 hours
Evaluate the given expression for x= 13.
2x + 3
The answer is
Answer:
no
Step-by-step explanation:
no
the property name for 20+0=20
Answer: Identity Property of Addition
Step-by-step explanation: The identity property holds true for addition.
The statement 20 + 0 = 20 represents the identity property of addition.
The identity property of addition says we add 0
to any number, the sum is equal to the original number.
In general terms, we can write the identity property of addition
as a + 0 = a where a is a variable that represents any number.
pls help I need help!
Find the length of side A.
Answer:
c = 5
Step-by-step explanation:
13² - 12² = c²
169 - 144 = c²
√25 = c
5 = c
plz follow me
Use the diagram below to answer
the following question(s).
In the diagram below, MQ = 30, MN = 5, MN = NO, and OP = PQ.
MN
P
Find the length of PQ.
5
10
15
25
Answer:
Step-by-step explanation:
The total distance is 30.
According to MQ = 30 .
And the first distance is
MN which is 5
MN = 5
and NO is equal to MN
MN = NO
giving us MN + NO = 10 or 5 + 5 =10
so if we need 30 and have 2 points that equal to 10
we need 20 more to equal 30
leaving OP = PQ or 10 = 10
10+10+5+5= 30
MN + NO + OP + PQ = MQ
THE ANSWER IS 10
Students in elementary school attends school five days each week after three weeks of attendance each student has attended school for a total of 6300 minutes for how many hours each day does each student attend the school
Answer:
Step-by-step explanation:
first lets meake the minutes into hours by dividing our minutes into hours
6300 / 60 = 105
so in total they go 105 hours in 15 days (5 days for 3 weeks is 15 days)
to find how many hours in each day lets divide our hours into the 5 days
105 / 15 = 7 hours a day
hope this helps <3
What is the perimeter of ABCD?
perimeter =
Answer:
38
Step-by-step explanation:
All you have to do to find the perimeter of a 2D shape is to add the sides and put the unit of measurement at the end of your answer.
Perimeter of ABCD is 38 units.
Perimeter of a quadrilateralPerimeter of a quadrilateral is given by the sum of the measures of all four sides.
From the picture attached,
Perimeter of the given parallelogram = AB + BC + CD + DA
= 9 + 10 + 9 + 10
= 38 units
Therefore, perimeter of the given parallelogram will be 38 units.
Learn more about the perimeter of a quadrilateral here,
https://brainly.com/question/341702?referrer=searchResults
can someone please help me solve these problems above (6-9)
i’ll give brainliest
Answer:
6. VT=TX
7. UT=UX=YX
8. VY=UT
Step-by-step explanation:
PLEASE HELP ME =(((((((((((((((((((((((
Answer:
The answer is
[tex]y = - 5x - 2[/tex]
Step-by-step explanation:
❃Incase you forgot what the linear equation formula is ☟
[tex]y = mx + b[/tex]
❃Incase you also forgot, The is what the slope formula is ☟
[tex]m = \frac{y_2 - y_1 }{x_2 - x_1}[/tex]
➊ First: We are going to be solving for the slope.
[tex]m = \frac{ - 2 - 3}{0 - ( - 1)} = \frac{ - 5}{ \: \: \: 1} = - 5[/tex]
➋Second: We find the y-intercept.
[tex]y = mx + b \\ 3 = - 5( - 1) + b \\ 3 = 5 + b \\ \frac{ - 5 = - 5 \ \ \: \: \: \: \: \: }{ - 2 = b}[/tex]
➌Third: Plug in.
[tex]y = - 5x - 2[/tex]
Write -2x + y = 7 into y = mx + b
help me..
find the value of x if √x-5=0( x-5 both r under the root)
Answer:
X = 5 plz brainly me
Step-by-step explanation:
Step-by-step explanation:
[tex] \sqrt{x - 5} = 0 \\ \\ x - 5 = 0 \\ x = 5[/tex]
If it is 11:45 a.m., what will the time be 3 hours and 15 minutes later?
4:15 p.m.
3:00 p.m.
3:15 a.m.
2:45 p.m.
Answer:
3:00 p.m.
Step-by-step explanation:
because 11:45 + 15 is 12:00 + 3 is 15:00 so it is 3:00 p.m.
Two trains are traveling at a constant rate. Which train has the greater speed?
Answer:
Train B
Step-by-step explanation:
What is the slope intercept form of the line that
has a slope of 4 and passes through the point (3. -
10)?
Answer:
y=4x-22
Step-by-step explanation:
slope intercept form: y=mx+b
STEPS:
y-y1=m (x-x1) <---- The formula to solve ity--10=4(x-3) y+10=4x-12 -10 -10y=4x-22 <---- Final AnswerHope this helps!