Answer:
-3 is the coefficient of x here
Step-by-step explanation:
The first thing to do here is to open the brackets.
(x-5)(x + 2) = x(x + 2)-5(x + 2)
x^2 + 2x -5x -10
x^2 -3x -10
When we say the coefficient of x, we mean the value by which x only is multiplied by in the equation. That would be -3
This must not be confused with the coefficient of x^2 which is entirely different from the coefficient of x
Evaluate 2(x - 4)+ 3x - x2 for x = 3.
A. 6
B. -2
C. 2
D. -6
Answer:
B. -2
Step-by-step explanation:
Simply plug 3 into the equation and follow the order of operations.
2(3 - 4) + (3(3)) - (3^2)
2(-1) + (9) - (9)
= -2
1) Marlon had 6 hits in 15 at bats. How does Marlon's
hits to at bats ratio compare to Adrian's?
Answer:
Marlon has a 40% of hits, which means Adrian needs more than 40% to be better.Step-by-step explanation:
We don't have Adrian's batting data, but we can find Marlon's ratio thorugh dividing the hits by the total bats.
[tex]M=\frac{6}{15}=0.4[/tex]
Therefore, Marlon has a 40% of hits, which means Adrian needs more than 40% to be better.
When solving negative one over five (x − 25) = 7, what is the correct sequence of operations?
Multiply each side by negative one over five , add 25 to each side
Multiply each side by 5, subtract 25 from each side
Multiply each side by negative one over five , subtract 25 from each side
Multiply each side by −5, add 25 to each side
Answer:
Multiply each side by −5, add 25 to each side
Step-by-step explanation:
-1/5(x-25) = 7
Multiply each side by -5/1 to clear the fraction
-5/1* -1/5(x-25) = 7*-5/1
x-25 = -35
Then add 25 to each side
x-25+25 = -35+25
x = -10
If a cubic polynomial has zeros at x= -4, x=0 and x=7, then
A). The polynomial has no imaginary zeros.
B). The polynomial as a pair of imaginary zeros.
Answer:
A
Step-by-step explanation:
The Fundamental theorem of algebra tells us that a polynomial of degree n has n roots.
Here the polynomial is a cubic, that is of degree 3
Thus it will have 3 roots, real and/ or imaginary.
Since imaginary roots occur in conjugate pairs
Since the polynomial has 3 real roots there are no imaginary roots, thus
A is the required response.
why do bees eat flowers
Answer:
Bees dont comanly eat flowers. They take the pollen and necture inside the flower to polenate OTHER flowers.
Step-by-step explanation:
most bees use pollen and nectar as a food source. Worker bees gather both pollen and nectar from flowers to feed to the larvae and other members of the colony.
Hope this helps a little
Answer:
Actually bees do not eat flowers but they land on flowers to collect nectar while at the same time pollinating them
Step-by-step explanation:
Actually bees do not eat flowers but they land on flowers to collect nectar while at the same time pollinating them
Can you please help me with this question and i will give you a Brainiest
The paperclip is a typical example of something with a mass of about a gram. The other items are significantly more massive. I'm in the US so I remember there are 28 grams in an ounce and 454 grams in a pound.
Answer: paperclip
Distribute -2x\left(-10x+1\right).−2x(−10x+1)
Answer: honestly, I don’t know. This is a bot.
Step-by-step explanation: bbbbrrididjejejdidiekkekskdkd
Type the correct answer in the box,
Find the value of X in this polygon
Answer:
x = 42
Step-by-step explanation:
166 + 93 + 127 + 112=498
5-2=3
180 x 3=540
540-498=42
Simplify expressions.
12x(x+2)−5(2x−1)
Answer: 12x^2 + 14x + 5
Step-by-step explanation:
12x^2 + 24x - 10x +5
12x^2 + 14x + 5
Answer:
12x^2 + 14x + 5
Notes:
Hi, I know that I wasn't the first to answer this question, but could you please think about giving me Brainliest?
A pillow that usually costs $18 is marked down 25%. Use the table to find the pillow’s new price.
Fill in the missing amounts to solve the problem.
100 percent is an 18 dollar original price, 25 percent markdown is a, and new price is b.
a =
b =
Answer:
In this case we can propose a rule of three:
$ 18 ---------------> 100%
x --------------------> 25%
Where x represents the discount made to the pillow:
So we have the new price (with the discount) is:
In addition, if 25% is discounted we have to, the price of the pillow is 75% of the original price. That is to say:
Step-by-step explanation:
Answer :
a= $4.50
b= $13.50
Step by step explanation: 1- find 25% of 18 which is 4.50. 2- subtract 18-4.50= 13.50
answer using elimination will mark brainist
-4x+3y=-5
4x-5y=3
2x+3y=36
10x-6y=12
Answer:
Step-by-step explanation:
For Case -1
[tex]\Rightarrow -4x+3y=-5\quad \ldots(i)[/tex]
[tex]\Rightarrow 4x-5y=3[/tex]
[tex]\Rightarrow 4x=5y+3[/tex]
Put the value of [tex]4x[/tex] in equation [tex](i)[/tex] we get
[tex]\Rightarrow -(5y+3)+3y=-5[/tex]
[tex]\Rightarrow -5y+3y-3=-5[/tex]
[tex]\Rightarrow 2=2y[/tex]
[tex]\Rightarrow y=1[/tex]
and thus [tex]4x=5(1)+3[/tex]
[tex]x=\frac{8}{4}=2[/tex]
Case-2
[tex]10x-6y=12\quad \ldots(i)[/tex]
[tex]2x+3y=12\quad \ldots(ii)[/tex]
Now multiply [tex](ii) by 5 and subtract it from (i)[/tex]
[tex] 10x-6y=12[/tex]
[tex] 10x+15y=+180[/tex]
[tex]\cdots \cdots \cdots[/tex]
[tex]-21y=-168[/tex]
[tex]y=8[/tex]
and [tex]=6[/tex]
Pleaseee help me!!!
Answer:
3 hours
Step-by-step explanation:
Since it will take the sprinkler 12 times longer to mow the entire lawn than 1/12 of it, it will take 1/4*12=3 hours, or the last answer choice. Hope this helps!
In three plays, a football team loses 5 yards and
then gains 32 yards by completing & pass. Then
a penally was called and the team kist 10 yards.
How many yards did the team actually gain?
Please give real work and explanations I’m giving away 20 points
Answer:
17 yards
Step-by-step explanation:
Start= 0
0-5=-5 (lose 5 yards)
-5+32= 27 (gain 32 yards)
27-10= 17 (lose 10 yards)
Helppppppppppppppppppppp
Answer:
a, c
Step-by-step explanation:
Let's start with one of each choice. That'll be 3 * 4 * 3 * 3 * 10 = 1080 pizzas. As for the second one, this time the toppings won't be 10 it will be 10 * 9 * 8 because we have 10, and then 9, and then 8 topping choices. This gives us 1080 * 9 * 8 = 77,760. Hope this helps!
Answer:
Step-by-step explanation:
Well, we can multiply the choices that they gave us, which is 3 by 4 by 3 by 3 by 10, which will give 1080 for the first part. Now, if you was to do only 3 toppings, it should be 3 by 4 by 3 by 3 by 3, which would give us 324. I don't know if this is right but I think this is the right answer.
Hi :) I need help with the question in the screenshot if anybody knows it can you plz help I will give you brainliest, thanks and points!!!!
This question is difficult to give a definite answer to because it's an approximation, but I estimate the solutions to be around x = 2.6 and x = -2.6.
When they ask for solutions of the graphed function they are asking for an approximation of where the graph intercepts the x-axis, and we can see it kind of intercepts in the middle of 2 and 3, except slightly closer to 3, which is why I estimated 2.6.
The graph also appears to be symmetrical, which means the solutions will be the same except one would be negative and one would be positive, which means the second solution would be -2.6.
I hope this helps! Let me know if you have any questions :)
15x + 20xy = 5x(4y)
Are these two Equivalent
Answer:
no
Step-by-step explanation:
on the first equation there are two Xs
Please help and I’ll give branliest answer to the person who’s most descriptive
A. 5×2×8×10
The formula to find the volume multiplies the length by the width by the height. The good news for a cube is that the measure of each of these dimensions is exactly the same. Therefore, you can multiply the length of any side three times. This results in the formula: Volume = side * side * side.
Have a great day (:
please help with math
Answer:
Step-by-step explanation:
Base area=108 square feet
V=BH=(108)(20)=2160 cubic feet.
The owner of a collector car sold the car at a auction. The owner bought it in 1977 when it's value was $7500. The value of the car increased at the rate of 5.5% per year. The auction took place in 2000. What is the approximate value of the car at the time of the auction.
Answer:
$25,695
Step-by-step explanation:
You can calculate the price of the car in 2000 using the formula to calculate the future value:
FV=PV(1+r)^n
FV= future value
PV= Present value: $7,500
i= rate: 5.5%
n= number of years: 2000-1977= 23
FV= 7,500*(1+0.055)^23
FV= 7,500*(1.055)^23
FV= 7,500*3.426
FV= 25,695
According to this, the approximate value of the car at the time of the auction is $25,695.
Triangle CDE is translated down and to the right forming triangle C prime de prime a prime which congruency statement is correct triangle DCE is congruent to triangle D primaries prime C prime triangle DCE is congruent to triangle d prime c prime e prime triangle EDC is congruent to triangle C prime de prime E prime triangle EDC is congruent to triangle C prime e prime D prime
9514 1404 393
Answer:
(b) DCE is congruent to triangle D'C'E'
Step-by-step explanation:
The congruency statement must list the vertices in the same order.
DCE ≅ D'C'E'
Its A on edge........
A patient was supposed to take 560 mg of medicine, but took only 420 mg. What percent of the medicine did the patient take?
Answer:
75%
Step-by-step explanation:
What percent of the people are between 20 and 37 years old
Caroline walked 5 kilometers due east, and then she turned around and walked 5 kilometers due west. How many kilometers is Caroline from her starting point?
A wallet that holds $25 contains the same number of $1 bills, $5 bills, and quarters. How many of each type of bill or coin does the wallet contain?
of each
Answer:
i can hold alot
Step-by-step explanation:
just do a lot
In 3 and 4, Classify each triangle by its sides and then by its angles
Answer:
3. Sides: Equilateral
Angles: Acute
4. Sides: Isosceles
Angles: Right
Step-by-step explanation:
3. Sides: Equilateral because in an equilateral triangle all sides are equal.
Angles: Acute because in an acute triangle all angles are acute.
4. Sides: Isosceles because in an isosceles triangle two legs are equal.
Angles: Right because in a right triangle, one angle is right.
Twenty people apply for 5 job openings as teacher assistants. How many different groups of people can be hired?
Answer:
15504 different groups
Step-by-step explanation:
We have a total of 20 people, and we want to know how many groups of 5 people we can make, where the order of the people inside the group doesn't matter, so we can solve this question calculating the combination of 20 choose 5.
The formula for combination is:
C(n, p) = n! / (p! * (n-p)!)
In this case, we have n = 20 and p = 5, so:
C(20, 5) = 20! / (5! * 15!) = 20*19*18*17*16 / (5*4*3*2) = 15504
So we have 15504 different groups.
PLEASE HELP WILL MARK BRAINLIEST
Answer: data set a= 4.5
Data set b= 5
Step-by-step explanation:
data set a: 3+4+4+4+5+5+5+6=36
36÷8= 4.5
Data set b: 3+3+3+4+4+5+5+6+6+7+7+7=60
60÷12=5
A mixed bag of candy is 25% chocolate bars and 75% other filler candy. Of the chocolate bars, 50% of them contains caramel. Of the other filler candy, 10% of them contain caramel. What percent of candy contains caramel? *
Answer:
20% candy contains caramel.
Step-by-step explanation:
A bag of mixed candy has chocolate bars = 25%
and other filler candy = 75%
Let the 'c' represents the percentage of candy containing caramel in the bag of mixed candy.
Of the chocolate bars, percentage of candy containing caramel = 50% of 25%
Of the other filler candy, percentage of caramel candy = 10% of 75%
1c = 0.50(0.25) + 0.10(0.75)
= 0.125 + 0.075
= 0.2
By converting into percentage = 0.2 × 100 = 20%
20% candy contains caramel.
Correct answers only please! I keep loosing points...
Quincy has $6,000 in a savings account that earns 4% interest, compounded annually.
To the nearest cent, how much interest will he earn in 5 years?
Use the formula B = p(1 + r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answer:
$ 7,299.92
Step-by-step explanation:
A = $ 7,299.92
A = P + I where
P (principal) = $ 6,000.00
I (interest) = $ 1,299.92
The value of Melissa's Jeep is $28,000 and is depreciating at a rate of 14% per year. Use an exponential function to find the value of the Jeep after 6 years. Round to the nearest cent
Help please :/
Answer:
Jeep value after six years is $11,327.9
Step-by-step explanation:
To find the value of depreciation, we use the exponential function below;
V = I(1-r)^t
where V is the future value of the Jeep which we are to calculate
I is the initial value of the jeep which is $28,000
r is the rate of decrease or depreciation which is 14% or simply 14/100 = 0.14
t is time which is 6 years
Plugging these values into the equation, we have;
V = 28,000(1-0.14)^6
V =28,000(0.86)^6
V = 11,327.88
To the nearest cent; V = $11,327.9