Answers
Given, a=-3
a) 2a= 2 × -3 = -6
b) a^2= (-3)^2= 9
c) 3a^2= 3 × (-3)^2 = 3 × 9 = 27
Hope it helps uh.
first you do multiply both the a because a is in square then a x a so (-3 x-3) =6 answer is 6
then next is c
3a sq OK
3a sq = (3x-3) -3 x-3
answer is 81
Related Questions
PLEASE HELP ME I DON’T GET IT & IT DUE SOON !!!!!
Answers
Answer:
Step-by-step explanation:
cows chickens legs animals
1 11 26 (1×4+11×2=4+22=26) 1+11=12
2 9 26 (2×4+9×2=8+18=26) 2+9=11
3 7 26 (3×4+7×2=12+14=26) 3+7=10
4 5 26 (4×4+5×2=16+10=26) 4+5=9
5 3 26 (5×4+3×2=20+6=26) 5+3=8
6 1 26 (6×4+1×2=24+2=26) 6+1=7
1. minimum number of animals=7
2. chickens=3
3. cows=4
chickens=5
graph the solutions of the inequality on a number line. Describe the solution to the inequality. p > 4
Answers
Draw out a number line. Make sure 4 is on the number line. At this location, plot an open circle. The open circle indicates "do not include this endpoint as part of the solution set". We shade to the right of this open circle.
Visually this describes all real numbers that are larger than 4.
Answer:
Visually this describes all real numbers that are larger than 4.
HOPE THIS HELPS :}
Evaluate w + 2w + 1 when w equals 8.
Answers
Answer:
25
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
w + 2w + 1
w = 8
Step 2: Evaluate
Substitute in w: 8 + 2(8) + 1Multiply: 8 + 16 + 1Add: 24 + 1Add: 25Kelly needs to order lunch for orders 6 people at a business meeting. Her menu choices are chicken salad for a cost of $5 per person and egg salad for a cost of $4 per person. She only has $28 to spend. How many of each type of lunch can she order?
Answers
Answer:
She would be able to buy
4 Chicken Salads &
2 Egg Salads
Step-by-step explanation:
4x5=20
leaving 8 dollars
2x4=8
Answer: she will spend 3 orders of chicken salad, and 3 orders of egg salad the total it will be $27.
Step-by-step explanation:
Consumer Reports will have an article comparing refrigerators in the next issue. Some of the characteristics to be included in the report are the brand name and model; whether it has a top freezer, bottom freezer, or side-by-side layout; the estimated energy consumption per year (kilowatts); whether or not it is Energy Star compliant; the width, depth, and height in inches; and both the freezer and refrigerator net capacity, in cubic feet. What variables are categorical, and which are quantitative?
Answers
Answer:
brand name and model - - > CATEGORICAL
whether it has a top freezer, bottom freezer, or side-by-side LAYOUT - - > CATEGORICAL
the estimated energy consumption per year (kilowatts); - - - > QUANTITATIVE
whether or not it is Energy Star COMPLIANT - - > CAREGORICAL
the width, depth, and height in INCHES - - - > QUANTITATIVE
both the freezer and refrigerator net capacity, in cubic FEET - - - > QUANTITATIVE
Step-by-step explanation:
Given the following refrigerator characteristics :
brand name and model - - > CATEGORICAL
whether it has a top freezer, bottom freezer, or side-by-side LAYOUT - - > CATEGORICAL
the estimated energy consumption per year (kilowatts); - - - > QUANTITATIVE
whether or not it is Energy Star COMPLIANT - - > CAREGORICAL
the width, depth, and height in INCHES - - - > QUANTITATIVE
both the freezer and refrigerator net capacity, in cubic FEET - - - > QUANTITATIVE
To start with ; Categorical and quantitative variables differ most notably in the fact that, quantitative variables deals with numbers, measurements or calculated mathematical values of certain attribute in a measured species or sample. Categorical variable on the other hand mostly deals with making distinctions in properties of a sample by grouping the varibale into the different available categories based on their attributes.
Serena is flying to Paris. The plane travels 3,654 miles in 72 1/4 hours from New York to Paris. What
was her
average rate of speed in miles per hour?
Answers
Answer:
Step-by-step explanation:
d = 3654 miles
t = 72 1/4 hours = 72.25 hours
r = d / t
r = 3654/72.25
r = 50.57 miles / hour
5TH GRADE LEVEL QUESTION. PLEASE LOOK AT PHOTO I NEED HELP DUE VERY SOON HANDING OUT BRAINLIEST PLEASEE HELP I BEG U.
Answers
Step-by-step explanation:
We know that the volume of a rectangular prism is the base area multiplied by its respective height.
Hence we have 24in² * 6in² = 144in³.
The volume of the package is 144 cubic inches.
American households increasingly rely on cell phones as their exclusive telephone service. It is reported that 53.0% of American households still have landline phone service. We decide to randomly call eight households and ask if the home has a landline phone.
Required:
a. What is the random variable?
b. What is the probability that none of the households in the sampled group have landline phone service?
c. What is the probability that exactly five of the households in the sampled group have a landline phone service?
Answers
Solution :
a). According to the reports, 53.0% of the American households still have a landline phone service. Out of which 8 households are randomly called.
Here, the landline phone service is p = 53.0%
n = 8
Therefore, q = 1 - p
= 1 - 0.53
= 0.47
here we use the binomial distance because the probability of having the landline phone service is constant and the number of the trial are finite.
b). Let x be the number of household in the sample group having landline phone service.
Probability that none of the household in the sample group have a landline service is
= P( x = 0)
[tex]$=^8C_0 (0.53)^0(0.47)^8$[/tex]
= 0.002 (using the binomial calculation )
c). Probability that exactly 5 of the household in the sample have a landline service is given by :
P(x = 5)
[tex]$=^8C_5 (0.53)^5(0.47)^3$[/tex]
= 0.24
Which point is the reflection of point E across the y-axis what are it’s coordinates ??
Answers
Answer:
Point J is the reflection, and the coordinates are (0,-2)
Step-by-step explanation:
Answer:
The reflection of point E across the y-axis is J(-2, 0).
Step-by-step explanation:
!!edmentum answer!!
Which graph does not represent a function?
Answers
Answer: B
Step-by-step explanation:
It is.
Ana completed 40% of her math test yesterday. She completed 12 math problems. How many math problems are on her test?
Answers
Answer: 30
Step-by-step explanation:
16,80, 400,...
Find the 6th term.
Answers
Answer:
Step-by-step explanation:
50,000
I think
help!! geometry
jjjjjjjjjjjjj
Answers
Answer:
107
Step-by-step explanation:
Since they are congruent triangles angle B is the same as angle D.
To find D, all angles add to 180 degrees, so:
41+32+x=180
73+x=180
X=107
So angle B is 107 degrees
The abscissa of the point (-3, 5) is ________.
A. 0 C. 5
B. -3 D. 1
Answers
Answer:
-3
Step-by-step explanation:
Answer:
B -3
Step-by-step explanation:
x- coordinate of a point is called abscissa and y-coordinate is called ordinate.
x-coordinate of point (-3, 5) is -3
Factor this expression, 3n^2+9n+6 If is possible
Answers
Answer is 3(n + 1)(n + 2)
Find the value of t that makes these two ratios proportional
2t/7= 42/49
Answers
Answer:
t= 3
Step-by-step explanation:
on the picture
if it's helpful ❤❤❤❤
THANK YOU
Help please please ugufidhdjdift
Answers
A = 1/2 (20)(4)
A = 40
5) Eastwood Middle School wants to paint the football field black, but not the
center.
The diagram below shows the dimensions of the field and center circle.
How much area will they need to paint black?
SHOW ALL WORK
Eastwood's Football Field
30 ft
75 ft
-100 ft-
04674 sq ft
O 706,6 sq ft
7500 sqft
6793.5 sq ft
Answers
Math question points and brainlest 20 points !!
Answers
Answer:
I think A (OwO)
Step-by-step explanation:
I'm not 100% sure, but its the closest.
Answer:
A) 2/15
Step-by-step explanation:
There is 2 can of green beans but 15 cans altogether. Making 2/15 of a chance to get green beans.
Have a blessed day! I hope this helps!
solve [(x+7) x 3-5] / 4 = 7
What is the first step in this equation
Answers
Answer:
The first step is to slove the numbers in the brackets
Step-by-step explanation:
[(x+7) x -2] / 4 = 7
-2(x+7) / 4 = 7
-2x-14 / 4 = 7
-2x-14 = 28
-2x = 42
x = -21
PEMDAS
HELP AGAIN PLSSSSSSSS
Answers
5 x 5= 25
Answer:
5x5 = 25
hope this helps (again) :D
PLEASE HELP ME!!
Which of the following lists is in order from smallest to largest?
Answers
Answer:
14%, 1/4, 1.4
Step-by-step explanation:
14% = .14
1/4 = .25
1.4 = 1.4
Answer:
14%, 1/4, 1.4
Step-by-step explanation:
12 out of 150 students at Cypress High School are going to travel during spring break. What percent of the students are going to travel during spring break?
__________________%
Answers
Answer:
8
Step-by-step explanation:
A tree is currently 10 feet tall and grows 2 feet per year.
Write a formula for the table in slope-intercept form.
f(3) =
How tall, in feet, will the tree be in 15 years?
Answers
Answer:
10+2x
the tree would be 40 feet tall in 15 years.
The tree will be 40 feet tall in 15 years because 2(15)+10=40 or 30+10=40.
FAST PLSSSSS
Find all real solutions to
x^2 + 4x + 4 = 100x^2 + 20x + 1.
If you find more than one, then list the values separated by commas.
Answers
Answer:
factor:
x^2+2x+2x+4
x(x+2)+2(x+2)
(x+2)(x+2)
100x^2+20x+1
100x^2+10x+(10x+1)
10(10x+1)+(10x+1)
(10x+1)(10x+1)=(x+2)(x+2)
Hope this helps you
Answer:
1/9, (-3)/11
Step-by-step explanation:
Both the left and right side are perfect squares,
(x + 2)^2 = (10x + 1)^2
In order for the squares to be equal, we must have the inner expressions equal to each other or negations of each other:
(x + 2) = [tex]\pm[/tex] (10x + 1)
or
x + 2 = -10x - 1
Simplifying the first equation gives 9x = 1 so 1/9 and simplifying the second equation gives 11x = -3, so (-3)/11
please help now pleasee
A tree casts a shadow 7.5 feet long at the same time that a 5 foot tall woman casts a shadow 3 feet long. How tall is the tree?
Answers
Answer:
The tree is 12.5ft Step-by-step explanation: 1. TREE'S HEIGHT over TREE'S SHADOW equals WOMAN'S HEIGHT over WOMAN'S SHADOW
2. TREE'S HEIGHT over WOMAN'S HEIGHT equals TREE'S SHADOW over WOMAN'S SHADOW
or some other ways as long as you pair them up by 'height', or pair them up by
'shadow'. {But don't get them criss-crossed)
Let TREE's HEIGHT = t.
A tree casts a shadow 7.5 ft long
TREE'S SHADOW = 7.5
at the same time that
a woman 5 ft tall
WOMAN'S HEIGHT = 5
casts a shadow 3 ft long.
WOMAN'S SHADOW = 3
So if you use
1. TREE'S HEIGHT over TREE'S SHADOW equals WOMAN'S HEIGHT over WOMAN'S SHADOW
cross-multiply:
3t = 37.5
t = 12.5
or if you use
2.cross-multiply
3t = 37.5
t = 12.5
Either way, the tree is 12.5 feet tall.
Answer: I got 12.5 too
Step-by-step explanation:
Tony had a bag that contained a
green marble, a blue marble, and
a red marble. Tony removed the
marbles from the bag one at a time.
He did not return each marble to the
bag after removing it. Which list
shows all of the possible orders in
which Tony could have removed the
marbles from the bag?
Green-blue-red
Blue-green-red
Red-green-blue
Red-blue-green
Blue-red-green
Green-red-blue
Ο Α
OB
Green-red-blue
Green-blue-red
Red-blue-green
Red-green-blue
Green-blue-red
Green-red-blue
Blue-blue-red
Blue-red-green
Answers
Answer:
A
Step-by-step explanation:
B repeats itself implying he put them back in the bag
It's for middle School PLZZZZ HELPPPP.
Lauren and her brother are buying their mom a watch for her birthday. The original price of the watch is $50, but the store is having a 25% off sale on watches. The sales tax in Lauren’s state is 6%.
How much will Lauren and her brother pay for the watch including tax? How much will each sibling pay if they split the cost equally?
Answers
Answer:
$20
Step-by-step explanation:
To find out sale
50 x .25 = 12.5
To find out tax
37.5 x .06 = 2.25
Then final price
37.5 + 2.25 = 39.75
If they spilt price
$19.88
Answer:
1. $37.5 without tax
2. Split bill with tax: $19.88
3. Split bill withput tax: $18.25
Step-by-step explanation:
Make an equation first.
y=.25 (50)
This would help solve the amount for the discpunt sale.
The discout is $12.5 off.
50-12.5=37.5
Now we have tp solve for the tax amount.
y=0.06 (37.5)
y=2.25
2.25 is the tax amount.
We have to add these all together to get the answer for part 1.
37.5+2.25= $39.75
Please help worth lot of points
Answers
Answer:
y=1
Step-by-step explanation:
The numbers are all even, so if you are looking for what is in the middle of 2 lines then you would use a odd number.
Which expression is equivalent to (6-2i)(2-3i)?
Answers
Answer:
Step-by-step explanation:
(6-2i)(2-3i)=
we will use foil to multiply
-12-18i-4i+6(i^2)=
now remeber that (i^2)=-1
=12-22i-6=6-22i
Explanation: To multiply two complex numbers, use the F.O.I.L method.
So we have (6 - 2i)(2 - 3i).
So we have 12 - 18i - 4i + 6i².
Combining like terms, we have 12 - 22i + 6i².
Now, remember that i² is equal to -1 so we have
12 - 22i + 6(-1) or 12 - 22i - 6 or 6 - 22i.
So our answer is 6 - 22i.