can someone help me? help
Answer:
Step-by-step explanation:
Remove the brackets
3x*x^2 - 5x*3x + 3x*1 - 2x^2+3x -7
Combine
3x^3 - 15x^2 + 3x - 2x^2 + 3x - 7
3x^3 17x^2 +6x - 7
i need to do those exercises but i’m not sure how
Answer:
Q4. a) 2000 cm³
b) 0.982 cm³ (3 s.f.)
c) 183 cm³ (3s.f.)
d) 2196 cm³
e) 2380 cm³
Q5. 8376 handles
Step-by-step explanation:
Please see the attached pictures for the full solution.
Is the following sometimes, always, or never true? If two lines intersect to form congruent adjacent angles, then the lines are perpendicular.
Answer:
sometime
Step-by-step explanation:
A company wants to develop audio speakers using an inexpensive type of plastic that has a very high quality of sound output. Which customers would most likely give a high evaluation of this product?
those who want to save money and will use the product for only a few years
those who want a top-quality product no matter how much it costs
those who want to save money and use the speakers for a long time
those who want a long-lasting product and are willing to pay a high price
Answer:
the answer is A
Step-by-step explanation:
those who want to save money and will only use product for a few years
Answer:
those who want to save money an will use the product for only a few years
Step-by-step explanation:
i took a test on edge 2020!!!
Jeremiah makes a recipe that calls for 1 1/2 cups of flour and 3/4 stick of butter. If Jeremiah uses 3 sticks of butter, how many cups of flour will he need?
Answer:
6 cups of flour
Step-by-step explanation:
we know that
the ratio of the recipe=(1 1/2)/(3/4)
1 1/2=1.5 cups of flour
3/4 stick of butter-------> 0.75 stick of butter
by proportion
1.5/0.75=x/3---------> 3*1.5=0.75*x
x=3*1.5/0.75----------> x=6 cups of flour
the difference of six times a number and 7 is -49.
Answer:
6x - 7 = 6(x + 4)
Step-by-step explanation:
The value of the number (n) is -7.
What is an Algebraic Expressions?When we apply the mathematical operations on constants and variables then we get the mathematical statements, these are known as algebraic expressions.The mathematical operators include, division, addition, multiplication and subtraction.Let a number we want to find be n.
Hence, according to the given condition, the equation will be:
⇒ 6n - 7 = -49
⇒ 6n = -42
Dividing both sides by 6, we get:
⇒ n = -7
Therefore, the number that satisfy the algebraic expression is n = -7.
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13. John and Jane ate lunch at a local restaurant and wanted to divide the bill evenly. The
bill for the food was $8.70, plus 2 sodas for $0.75 each, including tax. How much
money back should just John receive if he pays for his half with a $20 bill?
In how many ways can 5 people sit around a circular table
Answer:
120 ways
Step-by-step explanation:
In the scenario described, there are 120 ways that 5 people can sit around a round table.
3y + 2 ayuda necesito esto para hoy :(
Hey there!☺
[tex]Answer:\boxed{3y+2}[/tex]
[tex]Explanation:[/tex]
[tex]3y+2[/tex]
Since there are no like terms and it can't be factored the answer is:
[tex]3y+2[/tex]
Hope this helps!
HELP ME PLEASE THIS IS RIGHT ONE DONT GIVE WRONG ANSWER PLS 3
Answer:
33.32 m squared
Step-by-step explanation:
34 divided by 20 equal 1.7
19.6 times 1.7 equal 33.32
hope this helps you;)
pls Mark brainlest :)
Mr. Bins sold 1/2 of his farm to Mr. Frost and 100 acres to Mr. Slate. He now has 1/5 of his original farm land. How big was his farm originally? How much land does he have now?
On a bookshelf there are 5 paperback books and 3 hardcover books. Is the ratio of books to hardcover books 5 : 3? Explain.
Answer:8:3
Step-by-step explanation:
there are 5 paper back and 3 hardcover
the first part of the ratio is 8 bc the TOTAL number of books is 8 then the second part (3) is the hardcover books making the ratio 8:3
Solve the equation
-2(2x - 4) = 4x
Write it step by step. I really need help
Answer:
x = 1
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−2(2x−4)=4x
(−2)(2x)+(−2)(−4)=4x(Distribute)
−4x+8=4x
Step 2: Subtract 4x from both sides.
−4x+8−4x=4x−4x
−8x+8=0
Step 3: Subtract 8 from both sides.
−8x+8−8=0−8
−8x=−8
Step 4: Divide both sides by -8.
Solve for y .
K=5yz
help
Answer: y=K/5z
Step-by-step explanation:
To solve for y, you need to use algebraic properties to isolate y.
K=5yz [divide both sides by 5z]
K/5z=y
y=K/5z
Solve for n.
F=9/5(n-67)
Divide both sides by 9/5
9/5 F = N - 67
Add 67 to both sides
9/5 F + 67 = N
Hope this helped
An auto shop has 2 used vehicles for sale, 1 car and 1 truck. The truck is 3 years older than the car but 7 years older than one-half the car’s age. How many years old is the car?
Answer:
The car is 13 years old
Step-by-step explanation:
Lets say Car is x and the Truck is y, so the trucks age = x + 3 = y
Lets find the value of the Car or x
x + 3 = 1/2(x + 7)------- >
first we will divide x by 1/2 and 7 by 1/2, So...
x + 3 = (x / 1/2 + 7 / 1/2)------- >
x + 3 = 1/2x + 3.5------->
next Isolate variable x,
x + 1/2x = 3 + 3.5
1/2x = 6.5, So...
x = 13 and in turn, y = 13 + 3
:)
Simplify the expression by combining like terms 3x^2-2x+4x-x^2+3-x
Answer:
2x² +x + 3
Step-by-step explanation:
3x²-2x+4x-x²+3-x
Like terms:
3x² - x² = 2x²
-2x + 4x -x =x
3
2x² + x + 3
Ari is jogging at an average rate of 2.25 meters per second. Find the time it will take him to jog 270 meters.
Answer:
120 seconds/2 minutes
Step-by-step explanation:
divide the distance (270 m) by the rate (2.25 m/s) and you have 270/2.25 = 120 seconds, or 2 minutes.
It will take Ari 120 seconds to jog 270 meters.
To find the time it will take Ari to jog 270 meters at an average rate of 2.25 meters per second, we can use the formula:
Time = Distance / Rate
where:
Distance = 270 meters
Rate = 2.25 meters per second
Time = 270 meters / 2.25 meters per second
Time = 120 seconds
Therefore, it will take Ari 120 seconds to jog 270 meters.
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Its the same dropdown for every question, what is the answer for each one
Answer:
2.5y, y = -5.2
2.5(-5.2) = -13
2x² + y, x = -2, y = 5
2(-2)² + (5)
2(4) + 5
8 + 5 = 13
a(b), a = 2/3, b = 9/14
(2/3)(9/14)
cross simplify
(1/1)(3/7) = 3/7
PLEASE HELP I WILL MARK YOU BRAINLIEST
Answer:
The correct answer is A. The base of the rectangular prism must be 12 units because the height is 2 units, and 2 multiplied by 12 is 24, which is the total volume of the prism.
Find the distance between each pair of points (-2,3) , (-7, -7)
Answer:
D = [tex]5\sqrt{5}[/tex]
Step-by-step explanation:
[tex]d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\d= \sqrt{(-7-(-2))^2+(-7-3)^2} \\d= \sqrt{(-5)^2+(-10)^2} \\d= \sqrt{25+100} \\d= \sqrt{125} \\d= 5\sqrt{5}[/tex]
Transversal t cuts parallel lines rand s. Which angles must be congruent to 22?
OA. 23, 26, and 27
OB.
27 only
OC. 27 and 26
OD
23, 25, and 26
Please will make brainiest
If transversal t cuts parallel lines r and s, then the angles ∠3, ∠5 and ∠6 are congruent to ∠2.
What is Coordinate System?Coordinate systems are used to describe the (linear) position of points and the angular position of axes, planes, and rigid bodies.
A transversal is a line, ray, or line segment that intersects other lines, rays, or line segments on a plane at different intersecting points.
Congruent angles are two or more angles that are identical to each other.
The angle ∠2 measure is equal to ∠3.
∠2 measure is equal to ∠6.
∠6 measure is equal to ∠5.
The measures ∠3, ∠5 and ∠6 are equal to the measure of ∠2.
∠3, ∠5 and ∠6 are congruent to ∠2
Hence, if transversal t cuts parallel lines r and s, then the angles ∠3, ∠5 and ∠6 are congruent to ∠2.
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Evaluate a+b+c when a=4.035, b= -17, and c=12.3
If mTUV = 9x + 1, and mTUW = 7x - 9, and mWUV = (5x-11), find the value of x
Answer:
x = 7
Step-by-step explanation:
We can't tell the order of angles here, so we'll assume that ...
m∠TUV = m∠TUW +m∠WUV
(9x+1) = (7x-9) +(5x-11)
9x +1 = 12x -20
21 = 3x
7 = x
A container ship is overtaking an oil tanker on the way out of Harwich Harbor, and the first mate notices that if he starts walking from the front of the container ship when the two ships start overlapping, he reaches the back as the two ship separate. He walks at 3 km/hour.
If the container ship is 100 m long, and travelling at 12 km/hour, how long is the oil tanker?
Answer:
I don't get it
Step-by-step explanation:
describe the discontinutiy for the function f(x)= x^2+5/x-5
Answer:
f(x) = x² + 5 / x - 5
There is infinite discontinuity at x = 5. At this value, the graph becomes undefined because the denominator is 0.
what is the answer to this equation. -12 = 5x
Step-by-step explanation:
-12 = 5x
5x = -12
x = -12/5
x = -2.4
A taxi charges $2.00 for the first mile and $1.60 for every additional mile. Rachel is taking a trip that is 4 miles long. How much will she be charged?
7 ∙ 1 – 4 ∙ 1/4. Please answer!!!
Answer: 3/4
Step-by-step explanation: Doing order of operations we first do 7x1=7, then 7-4=3, then finally do 4x1/4=3/4.
Hope this helps! :)
Answer:
= 6
Step-by-step explanation:
7 x 1 - 4 x 1/4
7 - 4 x 1/4
7 - 1
= 6
hope this helps
What is the answer for this? Ugh I hate study island!!
Answer:
[tex]\frac{7x}{8}-\frac{1}{40}[/tex]
Step-by-step explanation:
[tex](\frac{3x}{4}-\frac{5}{8})+(\frac{x}{8}+\frac{3}{5})[/tex]
By combining the like terms,
= [tex](\frac{3x}{4}+\frac{x}{8})+(\frac{3}{5}-\frac{5}{8})[/tex]
= [tex](\frac{6x}{8}+\frac{x}{8})+(\frac{3}{5}\times \frac{8}{8}-\frac{5}{8}\times \frac{5}{5} )[/tex]
= [tex]\frac{7x}{8}+(\frac{24}{40}-\frac{25}{40})[/tex]
= [tex]\frac{7x}{8}-\frac{1}{40}[/tex]
Therefore, by solving the given expression we find the answer as [tex]\frac{7x}{8}-\frac{1}{40}[/tex].