[tex] \: [/tex]
[tex] \large\red{ \longrightarrow} \pmb{ \sf{(5 – 2x) (3 + x)}}[/tex]
[tex] \: [/tex]
[tex] \mapsto \: \: \: \sf{5(3 + x) – 2x(3 + x)}[/tex]
[tex] \: [/tex]
[tex] \mapsto \: \: \: \sf{(5 × 3) + (5 × x) – (2x × 3) – (2x × x)}[/tex]
[tex] \: [/tex]
[tex]\leadsto \: \: \: \sf{ 15 + 5x – 6x – 2x ^{2} }[/tex]
[tex] \: [/tex]
hope it helps!! :)
Write as a power of 3
[tex] \frac{ {3}^{n} }{ {9}^{n - 1} } [/tex]
Please help, many thanks
Answer:
3⁻ⁿ⁺²
Step-by-step explanation:
we need to make both bases the same
9 can be written as 3²
[tex] \frac{3 {}^{n} }{3 {}^{2(n - 1)} } [/tex]
multiply 2(n-1) = 2n - 2
[tex] \frac{3 {}^{n} }{3 {}^{2n - 2} } [/tex]
I'll rewrite as 3ⁿ ÷ 3²ⁿ⁻²
subtract the exponents when dividing numbers with the same base
n - (2n-2) or n - 1(2n-2) imagine the 1 is there
remember that the whole of (2n-2) is being multiplied by -1, so expanding
n - 2n + 2 = -n + 2
final answer: 3⁻ⁿ⁺²
A balloon is floating above a lake and a sunken canoe is below the surface of the lake.
The balloon’s vertical position is 12 meters and the canoe’s is -4.8 meters.
The equation 12 + d = -4.8 represents this situation.
What does the variable d represent? (This is NOT a number
The variable d represents the [answer1] in this situation.
Answer:
D is how long until the canoe
Step-by-step explanation: I have no idea i just guessed
Common Core Assessment
9. Choose Yes or No to tell if the fraction
will make each equation true.
+
Yes O No
Yes No
Yes N
3+)-1 o Yes No
10. Choose Yes or No to tell if the fraction
will make each equation true
Answer:
Yes, No, Yes, No.
Step-by-step explanation:
1/3 + 1/3 = 2/3
1/6 + 1/6 = 2/6, or 1/3, not 2/3.
2/3 + 6/9 = 4/3
2/5 + 2/3 = 16/15, not 14/15.
Debbie needs 6 cups of cherry soda. She has 20 ounces. How many more fluid ounces of cherry soda
does she need?
Answer:
48 fluid ounces.
Step-by-step explanation:
8 fluid ounces = 1 cup
So, we need to multiply 8 by 6.
8 x 6 = 48...That's your answer!
Answer:
she can only use 2 cups she needs 48 ounces
Step-by-step explanation:
there are 8 ounces in a cup she can only make 2 cups out of 20 ounces she needs a total of 48 ounces.
The slope of line m is -8 which of the following are perpendicular to line m ? Select all that apply.
2x-16y=24
40x+5y=12
-5x-40y=10
x-8y=5
16x-2y=32
Answer:
2x-16y=24
x-8y=5
Step-by-step explanation:
umm what do the letters m and b mean in y=mx+b ?
m = slope of the line
b = y-intercept of the line
b = y-intercept of line
m = slope of line
Hope this helps! Have a nice day! God bless and stay safe.
A circular swimming pool has a diameter of 15 feet. Jada wants to put a protective material around the rim of the pool.
Approximately how many feet of protective material does Jada need?
Use 3.14 for π.
Enter your answer as a decimal in the box.
feet
Answer:
47,1
Step-by-step explanation:
it is because when you multiply 3,14 by 15 you get your answer as 47,1 and it is a decimal
Using Multiplication, Jada need 47.1 feet of protective material around the rim of the pool.
What is multiplication?Multiplication is the "method of finding product of two or more numbers".
According to the question,
A circular swimming pool has a diameter of 15 feet.
In order to find how many feet of protective material jada need:
Formula for area of circle = πr² where 'r' is the radius of the circle.
Diameter = r²
= (3.14) (15) [π = .14]
= 47.1
Hence, Jada need 47.1 feet of protective material around the rim of the pool.
Learn more about Circle here
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Select the correct answer. Which equation is true for the value a = 7? A. a + 2(a – 3) = 15 B. 4a – 4(14 – a) = 24 C. 2a + 47 = 105 D. 3a + 2(a – 3) = 34 E. 4a – 2a = 18
100 POINTS!!!!!!
Answer:
[A]. a + 2(a – 3) = 15
Step-by-step explanation:
To See which equation is true for the value a = 7 Solve all of it.
Start with [A]
[A] a + 2(a – 3) = 15
7+2(7-3)=15
Hence,this is True.
Next ,[B]
[B] 4a-4(14-a)=24
4(7)-4(24-7)= -40
Hence, this is False.
Then, we have [C]
[C] 2a + 47 = 105
2(7) + 47 =61
Hence, this is False.
Now, We have [D]
[D] 3a+2(a-3)=34
3(7)+2(7-3)=29
Hence, this is False.
Lastly, We have [E]
[E] 4a-2a=18
4(7)-2(7)=14
Hence, this is False.
Thus, Correct Answer = [A].a + 2(a – 3) = 15
[RevyBreeze]
Answer:
A. a + 2(a – 3) = 15
Step-by-step explanation:
The first option.
brown rice costs 2$ per pound, and beans cost $1.60 per pound. Rudra has $10 to spend on these items. The amount of brown rice,r, is related to the amount of beans,b,rudra can buy. Rudra wrote the equation r=10-1.60b/2. what is the dependent variable? how do you know?
Answer:$13 dollars and 60 cent
Step-by-step explanation:
Add 10+1+2= 13 the cent stay the same
find the next term in the sequence: 0,1,2,5,12,29,70.
Answer:
0, 1, 2, 5, 12, 29, 70, 169, 408, 985, 2378, 5741, 13860,…
Step-by-step explanation:
I hope this helps!Answer:
169, 408, 985, 2378, 5741, 13860...Hope this helps you.
The circumference of a hula hoop is 86pi cm.
What is the radius of the hula hoop?
Answer: 86pi
Step-by-step explanation:
Answer:
43 cm
Step-by-step explanation:
Hope this helps!
15 points!
What is 31.55 rounded to two decimal places?
Answer:
What do you mean? nearest hundredth or tenth???????
Step-by-step explanation:
Answer:
31.55
Step-by-step explanation:
==> 31.55
==> Already in 2 decimal places
What is the value of x in the figure?
Enter your answer in the box.
Answer:
the answer is 29° because you have to subtract 61 from 90 and you will get 29.
x = 29°
Answer:
The answer is 29°
Step-by-step explanation:
We are given a figure,
Here, we know that on straight line the sum of all angles is equal to 180°
So,
x + 90° + 61° = 180°
x + 151° = 180°
x = 151° – 151° = 180° – 151°
x = 29°
Thus, The value of x is 29°
For Verification;x + 90° + 61° = 180°
29° + 90° + 61° = 180°
180° = 180°
L.H.S = R.H.S
Hence Verified!
-TheUnknownScientist 72
A The length of a rectangle is 4 m more
than the width. The area of the rectangle
is 45 m2. Find the length and width.
Given :
The length of a rectangle is 4m more than the width.The area of the rectangle is 45m²⠀
To Find :
The length and width of the rectangle.⠀
Solution :
We know that,
[tex]\qquad { \pmb{ \bf{Length \times Width = Area_{(rectangle)}}}}\:[/tex]
So,
Let's assume the length of the rectangle as x and the width will be (x – 4).
⠀
Now, Substituting the given values in the formula :
[tex]\qquad \sf \: { \dashrightarrow x \times (x - 4) = 45 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow {x}^{2} - 4x = 45 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow {x}^{2} - 4x - 45 = 0 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow {x}^{2} - 9x+ 5 x - 45 = 0 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow x(x - 9) + 5(x - 9) = 0 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow (x - 9) (x + 5) = 0 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow x = 9, \: \: x = - 5}[/tex]
⠀
Since, The length can't be negative, so the length will be 9 which is positive.
⠀
[tex]\qquad { \pmb{ \bf{ Length _{(rectangle)} = 9\:m}}}\:[/tex]
[tex]\qquad { \pmb{ \bf{ Width _{(rectangle)} = 9 - 4=5\: m}}}\:[/tex]
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
The length is 9m and the width is 5m.
What is a Rectangle?This is defined as is a quadrilateral with four right angles and the area is calculated as Length × width.
Let's assume length is x and width is (x-4).
We have x × (x-4) = 45m²
x² - 4x = 45
x² - 4x - 45 = 0
x² - 9x + 5x -45 = 0
x(x-9) +5 (x-9)
(x+5)(x-9) = 0
x = -5 or x = 9
x is therefore 9m and the width is (9-4) = 5m
Read more about Rectangle here https://brainly.com/question/2607596
Select the correct answer.
Which expression is equivalent to the given expression?
(4xy^3/x^2)^2
A. 16y^6
B. 16y^5/x^2
C. 16x^2y^5
D. 16y^6/x^2
Answer:
Hey! Here's it going?
The correct answer is D. 16y^6/×^2
The equivalent expression is 16y⁶/x².
What is an expression?In mathematics, expression is the combining of variables with the application of operations and prescribed rules. It could take the shape of an equation, some numbers, etc.
We have the expression,
{4xy³/x²}²
Simplifying the expression,
{4xy³/x²}²
= {4y³/x}²
= 16y⁶/x².
Therefore, 16y⁶/x² is the required equivalent expression.
To learn more about the expression;
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Is 12/15 closest to 0, 1/2 or 1
Answer:
1
Step-by-step explanation:
[tex]\frac{1}{2}[/tex] = [tex]\frac{7.5}{15}[/tex]
1 = [tex]\frac{15}{15}[/tex]
which is 12 closer to?
7.5 or 15 ?
15 of course
Answer:
1
Step-by-step explanation:
12/15 = 0.8
0=0.0
1/2=0.5
1=1.0
0<0.5<0.8<1
So now it is in between 0.5 and 0.8 and it is closer to 1 as it is only 0.2 away, 0.5 is 0.3 away.
Write 1620 as a product of its prime factors.
1620 = 2².3⁴.5
ok done. Thank to me :>
Answer:
Prime Factor of 1620 is...
[tex]\begin{gathered} \: \end{gathered}[/tex]
[tex]\sf2 \times 2 \times 3 \times 3 \times 3 \times 3 \times 5[/tex]
[tex]\begin{gathered} \: \end{gathered}[/tex]
Step-by-step explanation:
correct me if I'm wrong
#LetsStudy
[tex]\begin{gathered} \: \end{gathered}[/tex]
[tex]\tt{\large{\underline{ ANSWERED\: BY:}}}[/tex][tex]\tt\purple{⟶ MariaGabriellaSofia}[/tex]
Which of the following number sentences illustrates the associative property of multiplication?
8x9 = 9x8
2 x (1 x 9) = (2 x 1) (2 x 9)
(3 x 8) x 6 = 3 c (8 x 6)
1x 15 = 15
Answer: Choice C
(3 x 8) x 6 = 3 x (8 x 6)
=================================================
Explanation:
The associative property in general is
(a x b) x c = a x (b x c)
where the x stands for the multiplication symbol.
The a,b,c is in the same order for both sides, but grouped in slightly different ways with the parenthesis.
Plug in a = 3, b = 8, c = 6 to arrive at (3 x 8) x 6 = 3 x (8 x 6)
ABCD is a parallelograms, only find the value of Y?
Answer: 9
Step-by-step explanation:
Mrs. McConnell states that the numbers on the cards below have a mean of 12. What number is missing to make Mrs. McConnell correct if the numbers are 7, 16, 12, 10, 11.
Answer:
It was 16
Step-by-step explanation:
16+7+16+12+10+11=72
72 divided by 6 = 12
I WILL AWARD BRAINLIEST
Answer:
Option A is the correct answer.
Step-by-step explanation:
First, look at the second equation. Get s and r onto the same side.
For simplicity, I will use x for r and y for s
Multiply the first equation by 3, and multiply the second equation by -4.
3(2x+8y=−4)
−4(7x+6y=8)
Becomes:
6x+24y=−12
−28x−24y=−32
Add these equations to eliminate y:
−22x=−44
x=2=r
Now we substitute this back in for the original equation
(2)(2)+8y=−4
8y=-8
y=-1=s
Option A is the correct answer.
HELP ME PLEASE PLEASEE
Answer: 0.375
Step-by-step explanation: 3/4 times 1/2 equal to 0.375
Mr. Martinez has 25 kilograms of colored sand for his art students to
use on their sand art project. He packages the sand into individual bags
with 125 grams in each bag. How many bags of sand can Mr. Martinez
make?
Which is greater: 25% of 15 or 15% of 25? Explain your reasoning using mathematical evidence or visual models
Answer:
15% of 25
Step-by-step explanation:
Given the following questions:
25% of 15
15% of 25
We find the answer by using the formula to calculate percentage for both questions.
Question one:
[tex]\frac{p\times n}{100}[/tex]
[tex]\frac{25\times15}{100} =25\times15=375\div100=3.75[/tex]
[tex]=3.75[/tex]
25% of 15 is 3.75
Question two:
[tex]\frac{p\times n}{100}[/tex]
[tex]\frac{15\times 25}{100}=15\times25=375\div100=3.75[/tex]
[tex]=3.75[/tex]
15% of 25 is 3.75
Finally:
[tex]3.75=3.75[/tex]
[tex]15-3.75=11.25[/tex]
[tex]25-3.75=21.25[/tex]
[tex]11.25 < 21.25[/tex]
Which means 15% of 25 is "greater than" 25% of 15.
Hope this helps.
PLEASE ANSWER URGENT
Answer:
okay, but i need something to answer
Step-by-step explanation:
Below are the line plots for two data sets.
Find the mean of each data set.
Mean of data set A:
Mean of data set B:
Answer:
Data set A mean = 4
Data set B mean = 6.5
Step-by-step explanation:
Data set A:
3(3) + 4(2) + 5(3) = 32
32/8 = 4
Data set B:
5(4) + 6(4) + 7(4) + 8(4) = 104
104/16 = 6.5
Data set A mean = 4
Data set B mean = 6.5
if the total number of people attending the game was 64,0000, how may people were supporters of the home team
Answer:
I don't understand your question.
Step-by-step explanation:
Please make it clearer.
PLEASE HELP ME I WILL MARK BRAINLIEST IF CORRECT
Answer:
C is the Answer
Step-by-step explanation:
Your 6.50 kW air conditioner is used for a total of 125 days (24 hours per day). Assume the cost per kWh is 0.0825 determined the cost of air conditioning for one year.
Answer:
Air conditioners are rated by the number of British Thermal Units (BTU) of heat they can remove per hour. Another common rating term for air conditioning size is the "ton," which is 12,000 BTU per hour.
Each air conditioner has an energy-efficiency rating that lists how many BTUs per hour are removed or “pulled out” for each watt of power it draws.
The efficiency rating for room conditioners is the Energy Efficiency Ratio, or EER.
The efficiency rating for central air conditioners, is the Seasonal Energy Efficiency Ratio, or SEER.
These ratings are posted on an Energy Guide Label, which must be conspicuously attached to all new air conditioners. Energy Star-labeled appliances mean that they have high EER and SEER ratings
tysm, brainly really helped me into getting a 15.51/20 on my math PRE-test, you hear that, PRE. So I'm not breaking no community guidelines. Anyway, tysm I appreciate it
Answer:
pre tests still count amdand matmattemattter
Step-by-step explanation:
