Answers
Related Questions
What iswhat is 10 * 9 equal
Answers
Answer:
90
Step-by-step explanation:
10,20,30,40,50,60,70,80,90
Selena and Drake are evaluating the expression (StartFraction r s Superscript negative 2 Baseline Over r squared s Superscript negative 3 Baseline EndFraction) Superscript negative 1, when r = negative 1 and s = negative 2.
Selena’s Work
Drake’s Work
(StartFraction r s Superscript negative 2 Baseline Over r squared s Superscript negative 3 Baseline EndFraction) Superscript negative 1 Baseline = (r Superscript negative 1 Baseline s) Superscript negative 1 Baseline = StartFraction r Over s EndFraction = StartFraction negative 1 Over negative 2 EndFraction = one-half
(StartFraction (negative 1) (negative 2) Superscript negative 2 Baseline Over (negative 1) squared (negative 2) Superscript negative 3 EndFraction) Superscript negative 1 = (StartFraction (negative 1) (negative 2) cubed Over (negative 1) squared (negative 2) squared EndFraction) Superscript negative 1 = (StartFraction negative 8 Over 4 Endfraction) Superscript negative 1 Baseline = StartFraction 4 Over negative 8 EndFraction = negative one-half
Who is correct and why?
Selena is incorrect because she should have substituted the values for the variables first, and then simplifed.
Selena is correct because she simplified correctly and then evaluated correctly after substituting the values for the variables.
Drake is incorrect because he should have simplified first, before substituting the values for the variables.
Drake is correct because he substituted the values for the variables first, and simplified correctly
Answers
Answer:
Selena is correct because she simplified correctly and then evaluated correctly after substituting the values for the variables.
Step-by-step explanation:
Help me solve this Thanks
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Answer:
B. p varies inversely as r
Step-by-step explanation:
Since, p varies directly as q
[tex] \therefore p\:\:\alpha \:\:q\\
\therefore p= kq.. (k = constant)... (1)\\
[/tex]
Since, q varies inversely as r
[tex] \therefore q\:\:\alpha \:\:\frac{1}{r} \\
\therefore q= \frac{k}{r} .. (k = constant)... (2)\\
[/tex]
From equations (1) & (2)
[tex] p = k\times \frac{k}{r}\\
p = \frac{k^2}{r}\\
p\:\:\alpha \:\: \frac{1}{r}\\
[/tex]
Hence, p varies inversely as r.
I turned the dial on my stove 45 degrees from the start position If i continue to turn the dial how many degrees further will i need to rotate it to return to the start position.
Answers
Answer:
Hello!
YOUR ANSWER IS 315 DEGREES MORE
Step-by-step explanation:
To get it to the start position is the same as TURNING IT 360 DEGREES!
So from 45 degrees to reach 360 degrees...another 315 degrees will be needed!
HOPE THIS HELPS!!
given the straight libe MN = NP with M(12,-3) and N(-2,9), calculate the coordinates of P.
Answers
Answer:
hello hai to question is from which class
Step-by-step explanation:
84.78 gallons of milk is sold for $11.00. If you want to buy 9.58 gallons of milk, how
much will you have to pay?
Answers
Answer:
You will have to pay $22.05.
Step-by-step explanation:
We can solve this problem by making a proportion:
4.78 gallons/11 dollars = 9.58 gallons/x dollars
By cross-multiplying, we can solve for x:
4.78x = 105.38
x = 22.05
PLEASEEEEEEEEEE HELPPPPP❤️
Answers
Answer:
B
Step-by-step explanation:
-6+√-4 = -6+2i
Answer:
-6 + 2i
Step-by-step explanation:
The square root of -4 is the imaginary number: 2i The -6 stays the same. So add,, but don't combine real and imaginary numbers.
-6 + 2i
(02.01)
Solve for x: 3x - 5 = 2x + 6. (1 point)
a
-1
d
-11
Answers
Answer:
Step-by-step explanation:
3x - 5 = 2x + 6
x - 5 = 6
x = 11
19. What is 0.00375 expressed in scientific
notation?
A. 3.75x10-3
B. 3.75x10-2
C. 3.75x102
D. 3.75x10
Answers
Answer:
answer is A 3.75x10^-3
Alexis has $43 to spend at the grocery store. She needs to buy Milk that costs $2, dog food that costs $17, pasta that costs $1, soup that costs $3, and chicken that costs $12. How much money can she spend on school supplies? (assume no tax weekend)
Answers
Answer:The answer would be $8
Step-by-step explanation:
If you add up all the things she is buying and then subtract it from $43 that would be the difference. She spent $35
Pls halp due today >_<. Thank you!
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It is constant because otherwise it wouldn't be proportional
What is the value of |-12| ?
Answers
Answer:
12
Step-by-step explanation:
the absolute value of any negative number is the number in positive form.
Answer:
Hello!
The value would 12 cause it is the absolute value
For example:
If the is negative 12 the absolute value would be the opposite, so it would be positive 12.
But if it was
|12| then it would stay the same
Hope this helps!
-Fishylikeswater
Each scoop of ice cream costs $3.50, which expression below represents the cost of x scoops of ice cream?
Answers
Answer:3.5•x or 3.5x
Step-by-step explanation:
Given that sin(90 -5ϴ) = Cos(180 - ϴ), Find the value of ϴ
Answers
Answer:
30°
Step-by-step explanation:
[tex] \because \: \sin(90 \degree - \theta) = \cos \theta \\ \therefore \: \sin(90 \degree - 5 \theta) = \cos 5\theta....(1) \\ \\ \sin(90 \degree - 5 \theta) = \cos(180 \degree - \theta)...(2) \\ from \: (1) \: and \: (2) \\ \cos 5\theta = \cos(180 \degree - \theta) \\ 5 \theta = 180 \degree - \theta \\ 5 \theta + \theta= 180 \degree \\ 6\theta= 180 \degree \\ \theta = \frac{180 \degree}{6} \\ \\ \huge \red{ \boxed{\theta = 30 \degree}}[/tex]
The diameter of a circle is 7 in. Find its area to the nearest tenth.
Answers
D = r • 2
R = D/2
7/2 = 3.5
R = 3.5
A = πr^2
A = 3.14 • 3.5^2
A = 3.14 • 12.25
A = 38.465
A = 38.47
So therefore the area of the circle is 38.47!
The scale factor of a room for a scale drawing is 2.3. The actual length of a wall in the room is 46 feet and the actual width of the room is 69 feet. What is the area of the scale drawing?
50 square feet
500 square feet
600 square feet
1380 square feet
PLEASE HELP ME!!!!!!!
Answers
Answer:
There's two ways to solve this.
Step-by-step explanation:
First way:
Let's divide the width and length by 2.3.
46÷2.3=20
69÷2.3=30
20×30
600 ft²
Second Way:
Let's find the area of the actual room.
46×69
3,174 ft²
Let's find the scale drawing squared.
2.3²=5.29
3,174÷5.29
600 ft²
Answer:
600
Step-by-step explanation:
answer on edge 2021
Have a great day!
Jonus watches the second hand on an analog clock as it moves past the numbers. What is the
probability that at any given time the second hand on a clock is between the 2- and the 3-hour numbers?
Answers
Answer:1/12 or 8.3
Step-by-step explanation:
what is the answer to ,Evaluate 2⁶
Answers
a circle has a radius of 2 feet. What is the circumference? Use 3.14 for Pi.
Answers
Answer:
12.57
Step-by-step explanation:
A building is of unknown height. At a distance of 400 feet away from the building, an observer notices that the angle of elevation to the top of the building is 35º and that the angle of elevation to a poster on the side of the building is 15º. How far is the poster from the roof of the building? Round your answer to the nearest tenth.
Answers
Given :
A building is of unknown height. At a distance of 400 feet away from the building .
An observer notices that the angle of elevation to the top of the building is 35º and that the angle of elevation to a poster on the side of the building is 15º .
To Find :
How far is the poster from the roof of the building .
Solution :
Height is given by :
[tex]h=d\times tan\theta[/tex]
( Here , [tex]\theta[/tex] is angle of elevation )
So , height of tower :
[tex]H=400\times tan 35^o\\\\H=280.08 \ feet[/tex]
For height of poster :
[tex]h=400\times tan 15^o\\\\h= 107.18\ feet[/tex]
Therefore , distance of poster from the roof of the building is :
[tex]( 280.08-107.18) = $$172.9\ feet[/tex]
Hence , this is the required solution .
Andrea, Beth, & Cathy's ages are consecutive whole numbers. Andrea is the youngest, and Cathy is the oldest. The sum of their ages is 54. How old is Cathy?
Answers
Answer:
Age of Cathy = 19
Step-by-step explanation:
Find:
Sum of their ages = 54
Assume;
Age of Andrea = x
Age of Beth = x + 1
Age of Cathy = x + 2
Sum of their ages = x + x + 1 + x + 2
54 = 3 x + 3
3 x = 51
x = 17
Age of Cathy = x + 2
Age of Cathy = 17 + 2
Age of Cathy = 19
Brainliest for the correct answer
Answers
Answer:
Hey there!
w-99=119
w=218
x/3=103
x=309
y/2=146
y=292
Let me know if this helps :)
If the temperature starts out in the morning at 12° C but drops 18° by midnight, what is
the new temperature then?
(when they temperature drops, does it get colder or warmer?)
Answers
Answer:
it gets colder and it would be -6
Step-by-step explanation:
i hope
Use the drop-down menus to complete the statements.
The ordered pair given in the first row of the table can
be written using function notation as
f(3) is
f(x) = -5 when x is
Answers
Answer Notion: f(-6)=8
f(3) is -2
f(x) = -5 when x is 4
Answer:
a b b
Step-by-step explanation:
I forgot how to do this
Answers
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{1}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{ \frac{1}{2} \times 2}[/tex]
Multiply the numerators for the numerator and multiply the denominators for its denominator and reduce the fraction obtained after multiplication into lowest term.
[tex] \dashrightarrow{ \sf{ \frac{1 \times 2}{2 \times 1} }}[/tex]
[tex] \dashrightarrow{ \sf{ \frac{2}{2} }}[/tex]
[tex] \dashrightarrow{ \sf{1}}[/tex]
Or, You can simply reduce the fraction with 2, which results to 1.
Hope I helped!
Best regards! :D
PLEASE HELP. FIRST (CORRECT) ANSWER GETS BRAINLIEST
Simplify the expression
12 - 4 x 3 / 7 + 13 x 15
Answers
Answer:
the answer is 240 multiply and divide
Answer:240
Step-by-step explanation:
Use the order of operations. (PEMDAS)
Parenthesis
Exponent
Multiply
Divide
Addition
Subtraction
Hope this helped dude
(A) this relation is a function
(B) this relation is not a function
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Answer:
(b) this relation is not a function because this relation is a one to many ,functions are only many to one and one to one
What is the Solution
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Answer:
16x=1 x=1/16 or 0.0625
2/5x=1 x=5/2 or 2.5
Step-by-step explanation:
for 16x=1 divide both sides by 16, 1 divided by 16 is 1/16 or 0.0625
for 2/5x=1 multiply by the reciprocal of 2/5 which is 5/2. 5/2 times 1 is just 5/2 or 2.5.
7+ (25 - 15)-42
need help!
Answers
Answer:
-25
Step-by-step explanation:
7+25−15−42
=7+10−42
=17−42
=−25
Answer: -25
Step-by-step explanation:
Question 3 Evaluate the expression if x = 5 and y = 2 10 + 3x + 5y
Answers
Answer:
Sooo...
Step-by-step explanation:
1+2=7
Simple really.