Answers
Answer:
x = -4
Step-by-step explanation:
(x - 5) (x + 4) = x^2 + 4x
If you expand this, you get:
x^2 - x - 20 = x^2 + 4x
graph similar terms together, the x^2 disappears:
-20 = 5x
x = -20/5 = -4
Related Questions
A person walked 19km in 2.0 hr. What is the person’s average velocity in km/he and in m/sec?
Answers
Answer:
9.5km/hr and 16.667m/s
Step-by-step explanation:
velocity = Distance / Time
v = 19/2 --> v = 9.5km/hr
v = 2000m/120s --> v = 16.66666667m/s
Reasoning There were 43 students on the playground. Some more students joined them. Now there are 63 students on the playground. How many students joined? EnVision Lesson 3-5
Answers
Answer:
20
Step-by-step explanation:
63 - 43 = 20
Answer:
20 students
Step-by-step explanation:
because 43+s=63
63-43=20
s=20
so it have 20 students on the playground
You have 112 feet of fencing to enclose a rectangular region. What is the maximum area?
Answers
Sharel loaded 6 trucks every 16 minutes. At thats rate, how long, in minutes, will it take to load 9 trucks?
Answers
Which expression is equivalent to 8(4p+1)+6?
Answers
Answer:
32p + 14
Step-by-step explanation:
Expression :-
8(4p +1) + 6 .Simplify ,
32p + 8 + 6 32p + 14Employees hourly rate work is $2.90.each employee works for 8 hours a day. What would be the daily income of the employee
Answers
Answer:
$23.20
Step-by-step explanation:
1 hour of work = $2.90
8 x 2.90 = 23.20
8 hours of work will get an employee $23.20
If they worked 8 hours daily in a week:
7 x 23.20 = 162.40
Working 8 hours every day in a week will get them $162.4
Please help due in 2 hours and I’m clueless.
Identify the domain and range of each graph.
Answers
How do I do 7<1+x in linear equations
Answers
Answer:
7<1+x
1+x>7
x>7-1
x>6
Step-by-step explanation:
hope this helps a little
HELP PLEASE ASAP!!! PLEASE AND THANKS
Answers
Answer:
x >= 12
Step-by-step explanation:
2x + 7 <= 3x - 5
7 + 5 <= 3x - 2x
12 <= X
a
=
670
rounded to the nearest 10
b
=
72.7
rounded to 1 DP
Find the minimum (to 2 DP) of
a
÷
b
Answers
Answer:9.22
First, 670 rounded to the nearest ten is:
670
Second, 72.7 rounded to 1DP is:
well, 72.7
a÷b is:
9.2159
9.22 (2 DP)
rectangle QRST with vertices Q(-6,-1), R(-3,1), S(1,-5), and T(-2,-7)
Answers
Answer:
7 916 34902883837373u2728What is 2/7 ÷ 4/5 ? Plz help
Answers
Answer:
5/14
Step-by-step explanation:
Solve the math problem
Answers
Thats too many questions mam Step-by-step explanation:
please help!! please show your work too so i know how to do the rest of them :)
Answers
Answer:
Step-by-step explanation:
1) f(x)=1/3(x+1)^2
so if we use the equation f(x)=a(x-h)^2+k then we can plug in the different things. a would represent the compress/stretches, so in order to move horizontally, we would need to do 1/3
for h: that is the horizontal translations so, left and right. BUT remember it's the opposite. so if you want to go left <-- you would have to put a + sign and to go right you would have to put a - sign.
I hope that helps it prob is confusing sorry >-<
A rancher feeds one of her horses 6 scoops of corn each day during the winter. She feeds the horse half as much corn during the summer. How much corn does the rancher feed the horse each day in the summer?
Answers
Answer:
the answer is three
Step-by-step explanation:
because half of 6 is 3
Find the missing side of each triangle. Round your answers to the nearest tenth if necessary.
(Please show your work)
Answers
Answer:
12
Step-by-step explanation:
Since this is a right angle triangle, and we have two lengths already found, we can use pythagoras to find x.
We know that
a²+b²=c²
Where a, and b are the smaller lengths (the adjacent and opposite), and C is always the longest one (the hypotenuse).
We want to find x, which in this case is c. So,
to solve for c, we get
c=[tex]\sqrt{a^2+b^2 }[/tex]
So, after plugging in the values, we get
[tex]c=\sqrt{10.6^2+6.1^2}[/tex]
[tex]c=12.23\\\\=12 (rounded)[/tex]
___________
[tex] \: [/tex]
[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]
Step by step :x² = (10,6)² + (6,1)²
x² = 112,36 + 37,21
x² = 149,57
x = 12,22mi✔
if m<4= 86° what are the measures of the other seven angles in the figure
Answers
Answer:
below
Step-by-step explanation:
IF l₁ and l₂ are parallel, then:
Angles 2, 4, 5, 8 all equal 86 degrees
Then angles 1, 6, 3 , 8 all equal 180 - 86 which is 94 degrees
by what percentage did the high temperature increase from friday to saturday ? round ur answer
Answers
Answer:
Step-by-step explanation:
First, you must find the actual decrease in temperature.
Decrease = Yesterday's temperature - Today's temperature
Decrease = 80 - 75
Decrease = 5 degrees
Now, find the percentage decrease.
% Decrease = Actual decrease / Yesterday's temperature x 100
% Decrease = 5/80 x 100
% Decrease = 0.0625 x 100
% Decrease = 6.25 %
So, the percent decrease in high temperature from yesterday to today is 6.25%
The chart shows the nutritional facts for a nutrition bar.
Nutritional Facts
Nutrition Bar
1 bar
Calories
182.7
Fat
5.8 g
Carbohydrates
23.57 g
Sodium
289.75 mg
Which is the best explanation of how to find the carbohydrates in 16.4 nutrition bars?
Answers
Answer:
ITS A (i took the unit test)
Step-by-step explanation:
13. Does are turned using a special tool called a/ an
I think it’s C. die stock
Brainliest for a correct answer!!!
Answers
Answer:
You have the correct answer selected, (C.) Die stock. I hope this helps you! Good luck! : )
Which of the following best describes the number shown below?
0.535353...
A.
rational
B.
irrational
C.
both rational and irrational
D.
neither rational nor irrational
Answers
Answer:
irrational
Step-by-step explanation:
irrational. An irration number can not be expressed as a fraction or a decimal. This can not because this number goes on forever and it will never end, and you can write a never ending number as a fraction or a decimal. here is a tip to remember if a number never end like pi then it is irrational,
Work out the size of angle x 126 degrees exterior and 43 degrees interior
Answers
Answer:
The answer is 83°
Step-by-step explanation:
by the sum of iner and outer angle=180°
180-126= 54°
x=180-43+54
x=180-97
x=83°
hope that helped.?<3
helpppppppppppppppppppp
Answers
Answer:
[tex] \frac{x + 2}{x - 2} [/tex]
Step-by-step explanation:
This is much easier to solve actually since both expressions have the same denominator.
To solve it therefore,just sum the numerators
(x²-4x-2)+(8x+6)
x²+4x+4 Now divide by the common denominator
x²+4x+4/x²-4
Factorize both numerator and denominator
(x+2)(x+2)/(x-2)(x+2)
Cancel out common terms
x+2/x-2
HELP PLEASE solve for d
Answers
d= 1- 4bh
Step-by-step explanation:
- 8b = 2d - 2/h
Multiply both sides of the equation by h.
- 8bh = 2d - 2
Swap sides so that all variable terms are on the left-hand side.
2d - 2 = - 8bh
Add 2 to both sides.
2d = - 8bh + 2
The equation is in standard form.
2d = 2 - 8bh
Divide both sides by 2.
2d/2 = 2 - 8bh/2
Dividing by 2 undoes the multiplication by 2.
d = 2 - 8bh/2
Divide -8bh + 2 by 2.
Therefore: d = 1 - 4bh
13. The length of a rectangle is 9 cm more than 2 times the width. If the perimeter of the rectangle is 60 cm,
what are its dimensions?
a. length = 7 cm; width = 23 cm
b. length = 5 cm; width = 16 cm
C. length = 23 cm; width = 7 cm
d. length = 23 cm; width = 16cm
Answers
Answer:
C. length = 23 cm; width = 7 cmStep-by-step explanation:
Let the width is x, then the length is:
l = 2x + 9Perimeter is:
P = 2(l + w)60 = 2(x + 2x + 9)30 = 3x + 93x = 21x = 7Dimensions are:
Width = 7 cm, length = 2*7 + 9 = 23 cmCorrect choice is C
What is the solution to the linear equation?
4b + 6 = 2 – b + 4
b = –2
b = 0
b = 4
b = 6
Answers
Answer:
b = 0
Step-by-step explanation:
4b + 6 = 2 - b + 4
4b + b = 2 + 4 - 6
5b = 6 - 6
5b = 0
b = 0 / 5
b = 0
Answer:
The answer is B.
Step-by-step explanation:
b=0
helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answers
Answer:
Step-by-step explanation:
a) $3.30/6kg = 0.55 dollars per kilogram
b) 448km/7h = 64 kiliometres per hour
For each unit rate, divide the units in where usually the biggest one is on top
Have a good one
What are the values of v and w?
Answers
Then 3 angles equal 180.
61 + 61 + v = 180
122 + v = 180 (subtract 122)
V = 58
What is the length of the hypotenuse? If necessary, round to the nearest tenth.
Answers
Answer:
,a hypotenuse is the longest side of a right-angled triangle, the side opposite the right angle.
5. An oven is set for 425° F. A pizza is baked
in the oven, then the oven is turned off.
Graph time on the x-axis and the oven
temperature on the y-axis.
Answers
Answer:
ANSWER IS ON MY HEAD
Step-by-step explanation:
THINKING ABOUT IT