Questions:
(a) What is a simplified expression for (x + y) – (x – y)?
(b) Carlotta thinks that [tex]3y + 5y^3[/tex] is the same as [tex]8y^4[/tex]. Which statement shows that it is NOT the same?
Answer:
[tex](x + y) - (x - y) =2y[/tex]
[tex]3y + 5y^3 \ne 8y^4[/tex]
Step-by-step explanation:
Solving (a):
Given
[tex](x + y) - (x - y)[/tex]
Required
Simplify
[tex](x + y) - (x - y)[/tex]
Open brackets
[tex](x + y) - (x - y) = x + y - x + y[/tex]
Collect Like Terms
[tex](x + y) - (x - y) = x - x+ y + y[/tex]
[tex](x + y) - (x - y) = y + y[/tex]
[tex](x + y) - (x - y) =2y[/tex]
Solving (b):
Given
[tex]3y + 5y^3[/tex] and [tex]8y^4[/tex]
Required
Which expression shows they are not the same
The expression that shows this is:
[tex]3y + 5y^3 \ne 8y^4[/tex]
Take for instance; y=2
Substitute 2 for y in [tex]3y + 5y^3 \ne 8y^4[/tex]
[tex]3*2 + 5*2^3 \ne 8*2^4[/tex]
Evaluate all exponents
[tex]9 + 5*8 \ne 8*16[/tex]
[tex]9 + 40 \ne 128[/tex]
[tex]49 \ne 128[/tex]
The above expression supports [tex]3y + 5y^3 \ne 8y^4[/tex]
A faucet fills 1/3 of a water cooler in 1/12 of an hour At this rate how long does it take the faucet to fill the cooler completely
Answer:
[tex]\frac{1}{4}\:\mathrm{of\:an\:hour\: or\:}15\:\mathrm{minutes}[/tex]
Step-by-step explanation:
If the faucet fills [tex]\frac{1}{3}[/tex] of the water cooler in [tex]\frac{1}{12}[/tex] of an hour, then it will take the faucet [tex]\frac{1}{\frac{1}{3}}\cdot \frac{1}{12}=3\cdot\frac{1}{12}=\fbox{$\frac{1}{4}$}[/tex] of an hour to fill the faucet completely.
Select two ratios that are equivalent to 2:92:92, colon, 9.
Answer:
The only options equivalent to 2:9 are B and C. A ratio is a comparison between two or more numbers
Step-by-step explanation:
Answer:
B and C
Step-by-step explanation:
I need help ASAP! JUST GIVE ME THE ANSWER!
How much of the circle is shaded? Write your answer as a fraction in simplest form.
4/7 and 1/3
Answer:12/7
Step-by-step explanation:
4/7÷1/3=12/7
A town park has two biking trails. Marsh trail is 5 3/10 Miles long . Woodland Trail is 2 4/5 Long. How much longer is Marsh trail than woodland trail?
Answer:
3 1/5 i think srry if im wrong
Step-by-step explanation:
Sun estimated the quotient of –23.514 and –3.98 by rounding each to the nearest integer. Which equation shows the correct estimation? Negative 23.514 divided by negative 3.98 Negative 24 divided by negative 4 = 6 Negative 24 divided by 4 = negative 6 24 divided by 3 = 8 24 divided by negative 3 = negative 8
Answer:Negative 23.514 divided by negative 3.98 Negative 24 divided by negative 4 = 6 Negative 24 divided by 4 = negative 6 24 divided by 3 = 8 24 divided by negative 3 = negative 8
Step-by-step explanation:
Answer: -8
Step-by-step explanation:
10. The test was worth 100 points. There were 28 problems on the test. Some of the
problems were worth 3 points and others were worth 5 points. How many of each were
there?
Answer:
There are 20 3-point questions and 8 5-point questions
Step-by-step explanation:
x=3 point y=5 point
x+y=28 ----> x=28-y
3x+5y=100
3(28-y)+5y=100
84-3y+5y=100
84+2y=100
2y=16
y=8
28-8=20
Answer:
20 3-point questions and
8 5-point questions.
Step-by-step explanation:
Let there be x 3 point problems and y 5 point problems. So we have:
x + y = 28 Multiply this equation by -3:
-3x - 3y = -84
3x + 5y = 100 Adding the last 2 equations:
0 + 2y = 16
y = 8
So x = 28 - 8 = 20.
Need help with this?
Answer:
Half of the possible choices as far as I know are not shown in the picture but your answer should be the graph that is 5 units down than the center of the graph.
Find the value of x.
Step-by-step explanation:
(3x+24)°=(8x-11)°
24+11=8x-3x
35=5x
x=7
help please will mark branniest
thanks :)
Answer:
the first one is the 2 method for cpm and the second one is to seperate the other variable. the last one is say its a combination of both removing zeros and balanced sets. hope this helped :)
will give brainliest please help:)
Simplify:
-3-8(-5x - 1)
Answer:
5+40x
Step-by-step explanation:
I hope this helps. Best of luck.
Answer:
-11 times by -6x
Step-by-step explanation:
Help me with math please
Answer: 464
Step-by-step explanation:
anybody know this one
Evaluate the expression 36.6 – 24 x 22 ÷ 3
Answer:
-139.4
Step-by-step explanation:
36.6 - 528 ÷ 3 = 36.6 - 176
= -139.4
The range of the function is to because 4x is always positive. On a coordinate plane, an exponential function approaches the x-axis in quadrant 2 and increases exponentially in quadrant 1.
Answer:
The RANGE of the function is
✔ ZERO
to
✔ POSITIVE INFINITY
because 4x is always positive.
PLZ MARK AS BRAINLIEST:):):)
ALSO THANK AND FIVE STARE.
Answer:
B. Zero, C. Positive infinity
B, C
Step-by-step explanation:
y = -2/3 x in standard form
Answer: y = -2/3x in standard form is 2x + 3y = 0
Answer:
x + y = -2/3
Step-by-step explanation:
When changing something to standard form, you want all variables on one side, and the remaining numbers gone.
3/5+1/3= ...............................................................................................................
Answer:
Step-by-step explanation:
you add two fractions:
3/5+1/3=
find the common denominator = it is 15 (3*5)
9/15+5/15=14/15
Answer this please will give brainliest
Answer:
answer is 4
Step-by-step explanation:
Answer:
I can't see it well, some part of the question cut out. I suggest you to delete this question and make a new one so we can see it better, and be able to help
Step-by-step explanation:
PLS HELP ME! Joye has a circular garden with a diameter of 24 feet. If she uses 2 cups of fertilizer for every 10 square feet, how much fertilizer will Joye use for her garden? Use 3.14 for pi
Answer:
90.5 cups
Step-by-step explanation:
Step one:
Given data
diameter= 24ft
radius= 12 ft
area= πr^2
Area= 3.142*12^2
Area= 3.142*144
Area= 452.448 ft^2
Hence if
2 cups of fertilizer for every 10 square feet
x cups will do for 452.448 ft^2
cross multiply we have
x= 452.448 *2/10
x=904.896/10
x=90.5 cups
One solution to a quadratic equation is x = -2i
What is the other solution?
I believe it would be x=2i
:)
PLLSS HELP ME ty :)))
A builder needed to buy one hundred fifty-four boards for his latest project. If the board he needs comes in packs of three, how many packets will he need to buy
Answer:
51.3 packets or 51 1/3 packers
Step-by-step explanation:
From the above question:
The board he needs comes in packs of three. This means
1 pack = 3 boards
Hence:
3 boards = 1 packet
154 boards = x
Cross Multiply
3x = 154
x = 154/3
x = 51.333333333 packets
Approximately = 51.3 packets or 51 1/3 packers
The builder will need to buy 51.3 packets or 51 1/3 packers
A 50% DISCOUNT IF THE SWAETSHIRT COST $64.75, HOW MUCH DID ADAM PAY ROUNDED TO THE NEASRT HUNDERTHS
Hey guys can you help me with these im kinda busy and dont feel like doing them
Answer:
yes Whyy?
Step-by-step explanation:
walalang Sagot mo yan HAHAHAHAH
what is 1/5x +8 < -4
Answer:
The answer is x< -60
please let me know if I am incorrect.
Explanation:Solve for x by simplifying both sides of the inequality, then isolating the variable.
Given: CD = 1, and
Find the elements of D.
a
a =
-2 4 1
C = 1 0 3
- 2 3 -1
»E
a b
D= d e
19
h
f
i
b=
CE
d=
DIUIIIII
e =
f =
g=
h =
Answer:
1, and Find the elements of D. a a = -2 4 1 C = 1 0 3 - 2 3 -1 »E a b D= d e 19 h f ... - did not match any documents.
Suggestions:
Step-by-step explanation:
1, and Find the elements of D. a a = -2 4 1 C = 1 0 3 - 2 3 -1 »E a b D= d e 19 h f ... - did not match any documents.
Suggestions:
Answer:
a=-9
b=7
c=12
d=-5
e=4
f=7
g=3
h=-2
i=-4
Step-by-step explanation:
Don't forget to add the negative signs on a, d, h, and i
Edg 2020-2021
what is the value or |-12.7| and |11.1/4| ?
Answer:
12.7, because the absolute value gets rid of the negative integer, and shows it true value which is positive 12.7.
Step-by-step explanation: Have a Happy Thursday :)
A poodle puppy weighs 1.5 kg when it is born and gains 0.04 kg each day.
A golden retriever puppy weighs 1.2 kg when it is born and gains 0.1 kg each day.
How many days will it take for the two puppies to weigh the same amount?
Answer:
down below
Step-by-step explanation:
you need to find the greatest common multiple
sorry, i am really tired rn and can't solve it
but maybe one of the dogs becomes anorexic and then they will never weigh the same?
Answer:
333333324.442
Step-by-step explanation:
A poodle puppy weighs 1.5 kg when it is born and gains 0.04 kg each day.
A golden retriever puppy weighs 1.2 kg when it is born and gains 0.1 kg each day.
How many days will it take for the two puppies to weigh the same amount
Please help me!!!!!!
Answer:
I am sorry but this is too difficult
Step-by-step explanation:
I recommend asking a teacher for help not to be rude
Choose the definition for the function.
Answer: C
Step-by-step explanation:
Which of the following is the correct equation for the line
that crosses the x-axis at (3,0) and the y-axis at (0, 6)?
Answer:
-4,5
Step-by-step explanation: