Solve by using Substitution method-
-2x+9y=-9
9x-2y=2
Step by step needed asap
Answer:
(0,-1) I could be wrong
Step-by-step explanation:
Answer:
Step-by-step explanation:
-2x+9y=-9 (solve for x)
-2x= -9y-9
X = - 9y/-2 - - 9/2. X = 9y/2 + 9/2
9(9/2y+9/2)-2y=2
81y/2 + 81/2 - 2y = 2
81y/2 - 2y = 2 - 81/2. 81/2 - 2 = 77/2 and -81/2 +2 = -77/2
77/2 y = - 77/2
y = (-77/2)/(77/2)
y = - 1
Which inequality is true?
C, because π ≈ 3,14 so 9π = 9 · 3,14 = 28,26 > 27
Four people have measured the height of a wall using different methods. Their results are shown in the table. Order their measurements from least to greatest.
p^7 x p = ?
please answer
Answer:
Your answer is p^8
Step-by-step explanation:
p^7 × p
p^7 + 1
p^8
Please!
Mark me brainlist
Answer:
[tex]p^{8}[/tex]
Step-by-step explanation:
In exponent multiplication, if base are same, add the exponents
[tex]a^{m}*a^{n} = a^{m+n}\\\\\\p^{7}* p = p^{7+1} = p^{8}[/tex]
Need the awnser for 8 and 9 please help
Answer:
12-5xy and 5r-7
Step-by-step explanation:
You babysat your neighbors children and they paid you $45 for 6 hours what's the independent variable
Answer true or false. Provide an examp
17. The set of negative numbers are closed under division.
Answer:
false
Step-by-step explanation:
Graph and Label the Points on the coordinate plane below
Solve the following:
(20 - 52)(16 +22)
-23 + (3 x 22)
Give your answer in simplest form.
Answer:
-25
Step-by-step explanation:
=(20-25)(16+4)
-8+12
= -5×20
4
= -100
4
= -25
Anwser these questions
if 1 kg is equivalent to 1.000g then 8.500g is 8.5kg?
Answer:
too
Step-by-step explanation:
hhsihwhsusqioshsisjwk shshsusbsoosjs
Help.. Suppose Q is the midpoint of PR
Answer:
[tex]3x+41[/tex] or 38
Step-by-step explanation:
If Q is the midpoint of Line PR, then lines PQ and QR add up to equal Line PR. We then get
[tex]PQ=6x+25\\QR=16-3x\\PQ+QR=PR\\6x+25+16-3x=PR\\3x+41=PR\\[/tex]
If you want to know the exact number that PR is, we can do additional steps where PQ = QR.
[tex]PQ=6x+25\\QR=16-3x\\PQ=QR\\6x+25=16-3x\\9x+25=16\\9x=-9\\x=-1\\\\3x+41=PR\\3(-1)+41=PR\\-3+41=PR\\38=PR\\PR=38[/tex]
the food service industry is projected to grow from 13.1 million to nearly 14.4 million employees by 2023.calculate the percent increase
Answer: 9.92% increase
Step-by-step explanation:
(14.4MM-13.1MM)/(13.1MM) = 0.099237 0.0992 to 3 sig figs
9.92% increase
Find the inverse of the following function: f(x)={(2, 4), (4, 16), (6, 36), (8, 64)}
X/3 - X/6 = 2
What is the value of x how do I do it?
Answer:
Value of X is 18
Step-by-step explanation:
x/3 - x/6 = 2
multiply first fraction by 3 so u get X by its self then multiply the 2 by 3
x - x/6 = 6
then multiply the fraction by 6 to get X by itself then multiply the 6 by 6 because what u do to one side u have to do to the other
2x/2 = 36/2
x= 18
The perimeter of the school crossing sign is 102 inches. What is the length of each side?
Equation: _ =102
s=_
Question 2
Label the length of each side in inches
Answer:
1) s=15
2) 15, 21, 21, 15, 30 from left to right
Step-by-step explanation:
First you turn this into an equation: s+6+s+6+s+s+2s
Collect like terms: 4s+ 12 + 2s
Simplify: 6s+12
Bring back into a full equation: 6s+12=102
Simplify= 102-12=6s
90= 6s
90/6=s
s=15
Then bring back into sides: Left side and right sides are 15 as s= 15
15+6= 21 so both top sides are 21
2×15=30
So it goes in the order from left to bottom clockwise:
15, 21, 21, 15, 30
Hope this helps, if you need anymore help message me
:)
what is the answer of 81g^2 - 36f^2 ?????
Answer:
(9g - 6f)(9g + 6f)
Step-by-step explanation:
81g^2 - 36f^2 =
(9g)² - (6f)² =
(9g - 6f)(9g + 6f)
Will mark 1st person as brainliest
Answer:
-23/9
Hope it helps! Leave a 5 star rating and a comment so I know it helped you all! Thanks! :D
A man is three times as old as his son in 10 years time their combined ages will be 68 how old is each person now person now
Answer:
The dad is 36 and the son is 12
1+sinx+cosx/1+sinx-cosx=1+cosx/sinx help pls by proving
Answer:
Below.
Step-by-step explanation:
I'll write sin x as s and cos x as c so we have:
(1 + s +c)/(1 + s - c) = (1 + c)/s
Cross multiplying:
s + s^2 + cs = 1 + s - c + c + cs - c^2
s + s^2 + cs = 1 + s + cs - c^2
s^2 + c^2 + s - s + cs - cs = 1
s^2 + c^2 = 1.
- that is sin^2 x + cos^2 x = 1 which is a known identity.
Therefore the original identity is proved.
Miguel spends $20 a day for 3 days. He earns $17 a day for 5 days. Does Miguel end up with more or less money than he started with? By how much?
Answer:
more money by 25 dollars
Step-by-step explanation:
Spent:
20 *3 = 60
Made:
17*5 =85
-60+85 = 25
Het made 25 dollars over the period
Answer:
If Miguel spent $20 a day for 3 days that's $60 spent.
If he makes $17 a day for 5 days that's $85.
So that means that he ended up with more money than he started with.
he ended up with $25 more than what he started with.
Hope it helps!
solve: 8+2x-12=58
i need help please asap.
Answer: x=31
Step-by-step explanation:
-4 + 2x=58
2x-4=58
2x-4+4=58+4
2x=62
2x/2=62/2
x=31
Answer:
x = 31
Step-by-step explanation:
- Combine all like terms;
8+2x-12=58
2x -4 = 58
- Add 4 to both sides.
2x = 62
- Divide both sides by 2.
x = 31
PLEASE HELP ME DUE IN 15 MINUTES!!!
Given: (-3.2)
a. Simplify the given expression.
b. Write two expressions equivalent to the given
expression. Explain why the three expressions
are equivalent.
Answer: a- 1
Step-by-step explanation:
Help help help help please
Answer:
in my opinion
Step-by-step explanation:
b i would say it depends on how hard or how soft you throw it, and for C what kind of ball did you use or if you didn't lol just say this. I used a small ball and it was 2.5m
The teacher plans to buy pillowcases for his students. Each student needs 55 cm of material and there are 83 students. how many does the teacher need to buy for his students ???
Answer:
4565 cm
Step-by-step explanation:
55 * 83
can u change order of operations ?
Answer:
its best no to
Step-by-step explanation:
The only thing you can really change is switching subtraction and addiction, or division and multiplication. In the long run though its best just to say with the regural order and its earier later on.
please, (parentheses)
excuse (exponents)
my (multipliction)
dear (division)
aunt (addiction)
sally (subtraction)
Find f(g(x)] if f(x) = x^2+ 1 and g(x) = x^5
O (x^5+ 1)²
O (x² + 1)^5
O x^10 + 1
None of these
Answer the questions below.
(a) The area of a rectangular parking lot is 5673 m².
If the width of the parking lot is 61 m, what is its length?
Length of the parking lot:
(b) The perimeter of a rectangular pool is 292 m.
If the length of the pool is 88 m, what is its width?
Width of the pool:
Step-by-step explanation:
#1
Length = Area/Width
Length = 5673/61
Length = 91 m
#2
Perimeter = 2(l + w)
292 = 2(88 + w)
292/2 = 88 + w
146 = 88 + w
146 - 88 = w
58 = w
someone help me please
Answer:
8
if u look closely,triangle abc has 4 identical triangle def in it.
33 divide by 9537 plssss helpp me
Answer:
1/289 or 0.03462749213
Step-by-step explanation:
33 / 9537
= 1/289 or 0.03462749213
Answer:
[tex]33 \div 9537 \\ \\ \frac{33}{9537} = \frac{1}{289} = 0.00346[/tex]
I hope I helped you^_^