Answers
expand this
= 5x^2 + 7x - 20x - 28
= 5x^2 - 13x - 28 units squared
Related Questions
Each day, Robert eats 40% of the pistachios left
in his jar at that time. At the end of the second
day, 27 pistachios remain. How many pistachios
were in the jar at the start of the first day?
Answers
Answer:
At the beginning of the first day there were 75 pistachios in the jar.
Step-by-step explanation:
Given that each day, Robert eats 40% of the pistachios left in his jar at that time, and at the end of the second day, 27 pistachios remain, to determine how many pistachios were in the jar at the start of the first day you must perform the following calculations:
100 - 40 = 60
60 = 27
100 = X
100 x 27/60 = X
2700/60 = X
45 = X
60 = 45
100 = X
100 x 45/60 = X
4500/60 = X
75 = X
Therefore, at the beginning of the first day there were 75 pistachios in the jar.
Answer this question so i dont fall victim to a siezure/heart attack from stress
Answers
Answer:
Length = 12 feet, Width = 10 feet
Step-by-step explanation:
Let the length of the bedroom be 'x' ft and the width of the bedroom be 'y' ft.
We know that the perimeter of a rectangle is given by,
P=2(length+width)
P=2(x+y)
It is given that, the length of the bedroom is 2 more than the width, so,
x=y+2
Putting the values in the equation of perimeter we get,
44=2((y+2)+y)
44=2(2y+2)
44/2 =2y+2
22=2y+2
2y=22−2
y= 20/2 =10
Therefore, x=y+2=10+2=12
Hence, the length of the bedroom is 12 feet and the width of the bedroom is 10 feet.
Nigel owed his friend $20. He paid his friend half of the debt, but later he had to borrow an additional $3. Which of these expressions represents Nigel's debt to his friend?
Answers
Answer:
Where are the answers
Step-by-step explanation:
On the first day of a social media ad campaign, a website had 15 unique visitors. Over the following several days, the website received three times the number of unique visitors as the previous day. The number of visitors, v, can be modeled by v=15⋅3^(d−1), where d is the number of days in the campaign.
On which day of the ad campaign did the website have 10,000 visitors?
A) 4
B) 7
C) 9
D) 6
Answers
Answer: 7
Step-by-step explanation:
Can you help me on this one? I kinda forgot this whole unit Lowkey so can you explain it as if there were someone who never learned it? LINKS/ EMPTY SLOTS WILL BE REPORTED.
Answers
Answer:
here’s something that will help
answer is at the bottom if needed
Step-by-step explanation:
On three successive plays, a quarterback was sacked for a total loss of more than 19 yards. What describes the number of yards gained
A. more than B. less than
Answers
Draw a scale diagram of 15 mm scale factor of 8
pleaseee help
Answers
do u want us to draw it 4 u ? cuz I can
DETERMINE WHICH OF THE ANGLE MEASURES BELOW CORRECTLY
SATISFY THE MISSING VALUE, X, IN EACH DIAGRAM.
Answers
Hector's father is 4 times as old as Hector and twice as old as Carlos . If Carlos is 24 years old , how many years old is Hector ?
Answers
DO NOT PUT A LINK!!!
Answers
Answer: D
Step-by-step explanation:
Plug in 0 for each variables in the equation and see which one holds true
Hope this helps
Calculate the percent error
15 po
Mr. Boone estimates that it will take him 48 minutes to run 8 miles. It
actually takes him 60 minutes. What was his percent error? *
18%
20%
25%
30%
Answers
Answer:
20%
Step-by-step explanation:
The formula to find percent error is the absolute value of the actual value (60) minus the approximate value (48) divided by the actual value (60) times 100. So first we calculate 60 - 48 which is 12 then divide 12 by 60 which gives us 0.2 and finally multiply by 100 which gives us the answer of 20%
how do you give bainlist
Answers
Which equation has a graph that is a parabola with a vertex at (-2, 0)?
O y=-22²
O y = (x + 2)2
O y = (x - 2)2
Oy=x²-2
Answers
Answer: y = (x+2)^2
Aka: B
Step-by-step explanation:
Did it on edge just now !
The equation y = (x + 2)² has a graph that is a parabola with a vertex at
(-2, 0).
Option B is the correct answer.
What is a parabola?A parabola is an equation of a curve, such that any point on the curve is equidistant from a fixed point called the focus and a fixed line called the directrix of the parabola.
The equation of a parabola:
y = a(x-h)^2 + k
We have,
The equation that has a graph that is a parabola with a vertex at (-2, 0) is
y = (x + 2)².
The general equation for a parabola is y = a(x - h)² + k, where (h, k) is the vertex of the parabola.
Comparing this general equation to y = (x + 2)²,
We can see that h = -2 and k = 0, which means that the vertex of the parabola is (-2, 0).
Therefore,
The equation y = (x + 2)² has a graph that is a parabola with a vertex at
(-2, 0).
Learn more about parabola here:
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What is the recursive rule for the sequence? -1,-0.5,0,0.5,1,...
Answers
9514 1404 393
Answer:
C
Step-by-step explanation:
The subscript (n-1) is used to indicate the term previous to term (n). In this sequence, each term is 0.5 more than the previous term, so the recursive relation ...
[tex]a_n=a_{n-1}+0.5[/tex]
is the appropriate one. This matches choice C.
__
Additional comment
Of course, if the next term is 0.5 more than the last, then the previous term is 0.5 less than the present one. The sequence can be described in this "backward" fashion by the recursive relation of choice A. While that does work to describe the sequence, it is usually not the form we desire for a recursive relation.
y (y+2)+1(y+2) simplify the product
Answers
So the answer is : y^2+3y+2
Answer:
[tex]y (y+2)+1(y+2)[/tex]
[tex](y +1)(y+2) = 0[/tex]
PLZZZ HURRY!!
What is the series in summation notation?
Answers
Answer:
A series can be represented in a compact form, called summation or sigma notation. The Greek capital letter, ∑ , is used to represent the sum. The series 4+8+12+16+20+24 can be expressed as 6∑n=14n . The expression is read as the sum of 4n as n goes from 1 to 6 .
Step-by-step explanation:
I hope it's help u
Answer:
the answer is B
Step-by-step explanation:
i got your back
Researchers give one group a new cold medicine and compare them with to a group that takes no medicine. what is the group that is not given any medicine?
A. the control group in an experiment
B. the experimental group in a survey study
C. the experimental group in an experiment
D. the control group in an observational study
Answers
Answer:
A. the control group in an experiment
Step-by-step explanation:
Researchers give one group a new cold medicine and compare them with to a group that takes no medicine. The group that is not given any medicine is the control group in an experiment.
Who are researchers?Researchers are those who do research on something i.e. systematics and deep investigation into something.
What is control group?Control Group is that group in research which does not take any medication or untreated group.
During the research while a new type of medicine is to be tested, the group that receives the medication or being tested is called the experimented group and the group that does not receive the treatment is called the control group.
Hence, we can say that the group that is not given any medicine is the control group in an experiment.
To learn more about Control group click here
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Find the volume of this right rectangular
prism.
3 in
9 in
. 3 in
[ ? ]in3
Answers
Answer 8.1
Step-by-step explanation:
3 x 9 x 0.3 = 8.1
Given:BK=CH Which additional congruence statement could you use to prove that ∆BJK ≅ ∆CFH by the HL Theorem?
Answers
Answer:
B
Step-by-step explanation:
The hl theorem says that if we have two right triangles that have a congruent hypotenuse and a congruent leg, the two triangles are congruent
in this case the exercise says the two leg are congruent, so we have to say that the two hypotenuse are congruent
So
JB congruent to FC
but ima just add on bc it has to be 20 characters long lol
Help plesae i have no idea of what to do thanks
Answers
Answer:
1. 5 in.
2. 12 in.
3. 3.5 in.
4. 30 ft
5. 4 m
6. 32 mm
7. 53.41 m
8. 18.85 ft
9. 87.96 in
10. 56.56 mm
11. 20.57 in
12. 25.71 yd
Step-by-step explanation:
WILL GIVE BRAINLIEST PLEASE HELP ASAP
The sum of three consecutive numbers is 72. What is the smallest of these numbers? Set up an equation to solve.
Answers
Answer:
Let the three consecutive numbers be x,x+1,x+2 . The numbers are: 23,24,and25 and the smallest one is 23
Step-by-step explanation:
Answer: (x-1) + (x) + (x+1) = 72; smallest number is 23.
Step-by-step explanation:
The numbers are consecutive, meaning they sit next to each other on a number line. For example 4, 5, 6.
Because they are three consecutive numbers, their average will be the value of the middle one. For example the average of 4, 5, 6 is 5.
Knowing this, we can divide 72 by three to get the value of the middle number.
72/3 = 24, so the middle number is 24.
The numbers that fall either side of 24 on the number line are 23 and 25, so the three consecutive numbers are 23, 24, 25.
You can also set up and solve the equation: (x-1) + (x) + (x+1) = 72 because the numbers are consecutive.
To solve, combine like terms. The (-1) and (+1) cancel out and the equation becomes 3x = 72.
72/3 = 24, so x = 24, and the smallest term, (x-1) = 23.
Solve the following system of equation using any method.
3x+3y=12
2x+4y=16
X = and Y=
Answers
Answer:
X=0
Y=4
Step-by-step explanation:
3x=12-3y
x=4-y
Plug 4-y in for x in the other equation:
2(4-y)+4y=16
8-2y+4y=16
2y=8
y=4
If x=4-y and y=4, x=4-4=0
PLEASE HELP MEEEEEEEEEEEEEEE
Answers
Answer:
y = √61
Step-by-step explanation:
the steps are in the pic above, stay outta drugs and pass ur tests.
ASAP!! ILL GIVE BRAINLEST
In any given pair of similar three dimensional figures, if the ratio of the sides is a:b, then the ratio of
the surface areas is...
A:B
A^3:B^
A^-1:B^-1
A^2:B^2
Answers
Explanation:
It is 3 dimensional, so the surface area would be 3x bigger, so A^3:B^
Hi! Does anyone know the answer to this question? I’m bad at geometry and I’m struggling to get the answer. Please help!
Answers
if i understand the question it's 25
Step-by-step explanation:
6/21 equal 10/10+x
info x is GJ
6x=150
x=25
i used the similarity in trangle formula because he sayed that FG is parelel to HJ
Find the image of the given point
under the given translation.
P(-3,-3)
T(x,y) = (x -8, y-3)
P' = ([?], [])
Answers
Answer:
Step-by-step explanation:
p(-3,-3)
here x is -3 and y is also -3 so
p(-3,-3)=p'(x-8,y-3
=p'(-3-8,-3-3)
=p'(-11,0)
PLEASE I NEED HELP WITH THIS
Answers
Given:
The figure of a circle.
To find:
The measure of arc AD and measure of each arc.
Solution:
The measure of arc is equal to the central angle of that arc.
The central angle of arc AD is 105 degrees. So,
[tex]m(arc(AD))=105^\circ[/tex]
The central angle of arc BC is 35 degrees. So,
[tex]m(arc(BC))=35^\circ[/tex]
The central angle of arc CD is 50 degrees. So,
[tex]m(arc(CD))=50^\circ[/tex]
The central angle of a complete circle is 360 degrees. So,
[tex]m(arc(AD))+m(arc(BC))+m(arc(CD))+m(arc(AB))=360^\circ[/tex]
[tex]105^\circ+35^\circ+50^\circ+m(arc(AB))=360^\circ[/tex]
[tex]190^\circ+m(arc(AB))=360^\circ[/tex]
[tex]m(arc(AB))=360^\circ-190^\circ[/tex]
[tex]m(arc(AB))=170^\circ[/tex]
Therefore, the measure of arc AD is 105°, the measure of arc BC is 35°, the measure of arc CD is 50° and the measure of arc AB is 170°
Round your answer to the nearest hundredth.
Answers
Answer:
take 20 degree as reference angle
let hypotenuse be x
using cos rule
cos 20=adjacent/hypotenuse
0.93=7/x
0.93*x=7
x=7/0.93
x=7.5
Step-by-step explanation:
Need help with #6
Find the missing angles
Answers
Answer:
p = 95
q = 95
r = 85
s = 85
Step-by-step explanation:
85 deg & p are same-side int angles & are supplementary.
p = 180 - 85 = 95
p & q are vertical & congruent.
q = 95
p & s are supplenmentary.
s = 85
s & r are alt int angles & congruent.
r = 85
Is this a polygon or trapezoid?
Answers
Answer:
No
Step-by-step explanation:
this is my opinion so No