Answer:
2x^2+x-3
Step-by-step explanation:
Answer:
2x² + x - 3
Step-by-step explanation:
You need to foil the equation.
Foil = (a + b)(c + d) = ac + ad + bc + bd
(x - 1)(2x + 3)
x · 2x = 2x²
x · 3 = 3x
-1 · 2x = -2x
-1 · 3 = -3
Putting them together gets us:
2x² + 3x - 2x - 3
Add like terms to simplify it.
2x² + x - 3
Colin buys a car for £6000.
It depreciates at a rate of 6% per year.
How much will it be worth in 4 years?
Give your answer to the nearest penny where appropriate.
Answer:
4684.5
Step-by-step explanation:
6000 * (1 - 6%)4 = 4684.5 (1.d.p)
please help me with these three questions, i'll give brainliest
Answer:
The result would be 0 (zero)
Step-by-step explanation:
Okay so it is kind of difficult to explain with words but I will try to make it simple, so you could start with each number first.
What I mean by that is graph it like it says first, starting with -9 and then go four spaces to the right and then five more spaces to the right.
Next, Start four spaces to the right then go five more spaces right and then go nine spaces to the left.
And lastly, start five spaces to the right and go nine spaces to the left and then go four spaces to the right. H
Hopefully this is what you were looking for!
PLEASE HELP!!!
You are graphing quadrilateral ABCD in the coordinate plane. The length of segment AB is the same as the length of segment DC, and both segments are horizontal. The following are three vertices of quadrilateral: A (1, 1), C (4.5, 4), and D (-1.5,4). All you know about point B is that is in the first quadrant.
What are the coordinates of point B?
Answer:
B(2.75,2.5)
Step-by-step explanation:
B(x,y)
Bx= Ax+Cx 1 + 4.5 5.5
---------- = -------------- = --------- = 2.75
2 2 2
By = Ay+Cy 1 + 4 5
---------- = ----------- = ---------- = 2.5
2 2 2
coordinates of point B(2.75,2.5)
The sixth-grade chorus has a boy-to-girl ratio of 3:8. If the total number of chorus members was 11 last year and 33 this year, how many boys and girls were there for each of these two years?
Please help heres some points!
Answer:
tooth A
Step-by-step explanation:
0.23 = 0.230
0.230 > 0.195
Answer:
a
Step-by-step explanation:
A suitcase measures 21 inches by 16 inches. What is the length of the diagonal of the suitcase to the nearest tenth of an inch?
Answer:
Step-by-step explanation:
we have a rectangle that measure 21 inches by 16 inches
to find the rectangle(which is the hypotenuse) we will use Pythagorean theorem
c^=a^2+b^2
c^=21^2+16^2=697
c=[tex]\sqrt697}[/tex] =26.40 which rounded to the nearest tenth =26
Helppppp asap!!!!! Solve the inequality 4−23x>2−x for x. Show your work below.
Answer:
1/11>x
Step-by-step explanation:
4−23x>2−x
+23x to both sides
4>2+22x
-2 from both sides
2>22x
Divide by 22
1/11>x
Ms. Petters has 36 red, blue, and green markers. She has an equal number of each color of marker. She arranges the red markers in 2 equal groups. How many red markers are in each group?
If f(x)=2x and g(x) = x-4 what is the value of g(f(3)) ?
Answer:
The value of g(f(3)) = 2
Step-by-step explanation:
We are given:
[tex]f(x)=2x[/tex]
[tex]g(x) = x-4[/tex]
And we need to find g(f(3))
First we need to find g(f(x))
by putting the value of f(x) into g(x) i.e put x = 2x
[tex]g(x)=x-4\\g(f(x))=2x-4[/tex]
Now, we need to find g(f(3)) by putting x = 3 in g(f(x))
[tex]g(f(x))=2x-4\\Put\: x=3\\g(f(3))=2(3)-4\\g(f(3))=6-4\\g(f(3))=2[/tex]
So, the value of g(f(3)) = 2
Suppose Joeff charges a $20 flat rate plus $27 per hour to work on cars. How many dollars does Joeff earn for a 5-hour job? (Answer with the number only, e.g. 56) Enter the answer Check
Answer:
k
Step-by-step explanation:
Answer:
27x +20 (27 per hour plus the 20, x is how many hours)
27(5) +20
135 +20
$155
Step-by-step explanation:
i hope this helped :)
What do you subtract from -3 td get positive 4?*
Answer:
7
Step-by-step explanation:
PLEASE HELP! <3
What is the slope of the line?
Answer:
0
Step-by-step explanation:
The slope formula is (change in y)/(change in x)
since the numerator (change in y) is 0, the slope will be 0
5. The sides of a triangle are in the ratio 4:5:6. What is the length of each side if the
perimeter is 45 cm?
Answer:
12, 15, 18
Step-by-step explanation:
4+5+6 = 15
45/15 = 3
multiply 4 x 3 = 12
multiply 5x 3 = 15
multiply 6 x 3 = 18
Mrs . Kerr is going to pack 9 carrots, 12 crackers, and 18 grapes into lunch boxes. How many of each food item will be in a lunch box if she pack the into the greatest number of identical lunch boxes
Answer:
3 carrots, 4 crackers, and 6 grapes.
Step-by-step explanation:
The greatest common factor of 9, 12, and 18 is 3, so we know that we can make at most 3 identical lunchboxes. Now we have to divide each number by 3 to figure out how much of each item is in each lunchbox. 9/3=3, 12/3=4, and 18/3=6 so there will be 3 carrots, 4 crackers, and 6 grapes in each lunchbox.
Simpily the expression below: 2(4x + 5y)
Answer: 8x+10y
Step-by-step explanation:
2(4x)= 8x
2(5y)= 10y
8x+10y
Are the two ratios relationships below equivalent? Explain why or why not.
3 pink umbrellas to 21 green umbrellas
and
6 pink umbrellas to 36 green umbrellas
Answer:
No
Step-by-step explanation:
Find the unit rates, meaning how many green umbrellas per pink umbrella? So we have 2 ratios:
1. 3:21
2. 6:36
For the first ratio, divide both sides by 3 to find how many green umbrellas per pink umbrella. 1:7
Do the same for the second one, 1:6. So they are different.
Answer:
r horses and I am a little girl but I've never seen her
I need help with this plss!! for 20 pints
Step-by-step explanation:
this chart is a life saver!
Solve the equation:
9x - 5 = 5x + 7
Answer:
x=3 i think
Step-by-step explanation:
Can someone help me please?
Answer:
B) x = 2√2, y = 2
Step-by-step explanation:
The easiest way to solve this is to see that because one corner is 90 degrees, and the other 45, then the third one must also be 45. This means that the two sides on the right angle are the same length, so y = 2.
With that then, you can use the Pythagorean theorem to solve for x:
[tex]x = \sqrt{2^2 + 2^2}\\x = \sqrt{4 + 4}\\x = \sqrt{8}\\x = 2\sqrt{2}[/tex]
So the correct answer is b. x is equal to two root two, and y is equal to two.
PLZ HELP!!!
write an equation to match this graph.
Answer:
y = 1/5x - 5
Step-by-step explanation:
slope intercept form: y=mx+b
m is the slope
to find slope, do rise/run. for this graph it comes out to be 2/10, which simplifies to 1/5
b is your y-intercept, aka where the line comes in contact with the y-axis
by calculating your slope, you can then find that if you follow the 1/5 slope, but make it a negative, your line would cross the y-anix at -5
therefore your answer is: y = 1/5x - 5
hope this helped!
simplify and show your work 8÷(10−9) 3 ×7+4 2
Ernesto has already jarred 17 liters of jam and will jar an additional 1 liter of jam every
day. How many days does Emesto need to spend making jam if he wants to jar 27 liters of
jam in all?
I need some help please and thank you
Some campaigners want a maximum wage. This would be in a ratio of 10:1 with the minimum wage. If the minimum wage is £8.72 an hour for over 25's, what would the maximum wage be
Answer:
The value of the maximum wage is £87.2
Step-by-step explanation:
Here, we want to get the maximum wage given the ratio it has with the minimum wage
To get the value of the maximum wage, we proceed to multiply the value of the minimum wage by 10
Mathematically, that would be;
8.72 * 10 = £87.2
The product of two numbers decreased by six is less than 30. Write an algebraic expression, but do not solve. *
Answer:
(x × y) - 6 < 30
xy - 6 < 30
xy < 30 + 6
xy < 36
Step-by-step explanation:
Let us represent:
First number = x
Second number = y
The product of two numbers decreased by six is less than 30.
The algebraic expression is given as
(x × y) - 6 < 30
xy - 6 < 30
xy < 30 + 6
xy < 36
The bowling alley charges a set fee for shoe rental and charges per game bowled. The total
cost of bowling can be modeled by c(b) = 5.75b + 4.25 Which statements about the function
are true?
I.
The cost for each game of bowling is $5.75.
II.
The shoes cost $5.75 to rent.
III.
The number of games bowled is represented by b.
1.
I and II only
2.
I and III only
3.
II and III only
4.
I, II and III
Submit Answer
Answer: (2.)
1 and 111 only
Step-by-step explanation:
Can someone help me plzzz!!
Answer:
Multiply dno. plus nume. by 2
Step-by-step explanation:
get a base of 100
on a timer help me fast plssssssssssssssssssssssssssss
Answer:
22+x<=55
D
Step-by-step explanation:
Blue Line Red Line
y-intercept
slope
Inequality
Answer:
Y-intercept
Step-by-step explanation:
Because they both meet
If x and y vary directly, and x = 12 when
y = 4, what is the value of x when y = 1 ?