Answer:
one angle can be 50 degrees and the other angle will be 40 degrees
Step-by-step explanation:
complementary is when 2 angles add up to 90 degrees
Graph the system below and write its solution.
-2x+y=-4
y=1/2x+2
Answer:
(4, 4)
General Formulas and Concepts:
Algebra I
Reading a Cartesian planeCoordinates (x, y)Graphing functionsSolving systems of equations by graphingStep-by-step explanation:
Where the 2 graphs intersect would be the solution set to the systems of equations.
Answer:
x=4
and
y=4
Step-by-step explanation:
let -2x+y=-4 ...1
y=1/2x+2 ...2
putting equation 2 in equation 1 we get,
-2x+(1/2x+2)=-4
opening the brackets we get,
-2x+1/2x+2=-4
(-4x+x)/2=-4-2
-3x/2=-6
-3x=-6×2
-3x=-12
x=-12/-3
x=4
putting value of x in equation 2
y=1/2(4)+2
y=2+2
y=4
hence, x=4 and y=4
how de you find standard deviation
Answer:
Work out the Mean (the simple average of the numbers)
Then for each number: subtract the Mean and square the result.
Then work out the mean of those squared differences.
Take the square root of that and we are done!
Here are some statistics about the masses of a group of 50 students
Mean = 12 Median = 14 Range = 17
a) If the mass of every student increase by 4 Kg , What are the new statistics?
b) If the mass of every student doubles , What are the new statistics
Step-by-step explanation:
A.
po sana makatulong po
-ABC
What is A?
What is B2
What is C?
Really need help someone !!!!!!! That’s helpful and good at math !!!!!
Answer A+B=C that is what I know.
Step-by-step explanation:
Answer:
A= Base
B= Exponent (sometimes called Index)
C= Power
Step-by-step explanation:
A= Base
B= Exponent (sometimes called Index)
C= Power
Which is the logarithmic equation log8 64 = a, written in exponential form?
Step-by-step explanation:
log8 64 = a
cut log and base^a
64 = 8^a
8^a = 64
or a = 2
Answer:
[tex]8^a = 64[/tex], which gives [tex]a=2[/tex].
Step-by-step explanation:
When you see [tex]\log_8(64)=a[/tex], think: [tex]a[/tex] is the number such that [tex]8^a = 64[/tex]. Mathematical intuition gives us that [tex]a=2[/tex] immediately, but we can also work this out more methodologically:
[tex]8^a = 64\\(2^3)^a = 2^6\\2^{3a} = 2^6\\3a = 6\\a = 2[/tex]
And this solution suffices.
1 poin
Sylvia is going to buy a new jacket. The regular price is $68.00 and the
jacket is on sale for 25% off. There is a 15% sales tax on the jacket. How
much will Sylvia pay for the jacket? *
86.18
$85.00
$58.65
$61.20
Answer:
58.65 because I just know what the answer is
IT DIVISION ITS NOT ADDING.
expand and simplify{x+5}{x+6}
Answer:
hdf'sdfhsd
Step-by-step explanation:
wregfsdfgerwfsfefefsed
what is the difference of 4.042 and 3.155
Answer: 0.887
Step-by-step explanation:
1.Draw Angle POQ of measure 75° and find its line of symmetry
Pls answer with steps
Step-by-step explanation:
you need too look somewhere else
14. Which shows how to find 5 x 72 mentally by using the Distributive
Property?
A. 5(7) + 5(2) B. 5(70) + 5(2) C. 205 + 70) D. 5(70)+2
Answer:
B
Step-by-step explanation:
5(70)= 350
5(2)= 10
350+10=360
72(5)= 360
i hope this helps!
Levi invested $160 in an account paying an interest rate of 3% compounded daily.
Assuming no deposits or withdrawals are made, how much money, to the nearest ten
dollars, would be in the account after 8 years?
What is the answer
Answer:
The amount is $200.00 and the interest is $40.00
Step-by-step explanation:
Answer:
200
Step-by-step explanation:
it was the right answer on delta math
HELP PLEASEEEEEEE WILL GIVE BRAINLIST
Answer:
B) [tex] 10\pi \: cm[/tex]
Step-by-step explanation:
Option B is the correct answer
[tex]A= \pi r^2 [/tex]
[tex]25\pi= \pi r^2 [/tex]
[tex]25= r^2 [/tex]
[tex]\sqrt{25} = r [/tex]
[tex]5\: cm= r [/tex]
[tex]C = 2\pi r [/tex]
[tex]C = 2\pi \times 5[/tex]
[tex]C = 10\pi \: cm[/tex]
3)
Evaluate the expression 2x-5 when x = 3.
Answer:
1
Step-by-step explanation:
Plug in the x to the original equation given.
2(3)-5
2 times 3 is 6 so then,
6-5 =1
Hey there!
2x - 5
= 2(3) - 5
= 6 - 5
= 1
Therefore, your answer is: 1
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
A car dealership decreased the price of a certain car by 14%. The original price was $48,200.
(a) Fill in the blank to write the new price in terms of the original price.
Write your answer as a decimal.
New price = { x Original price
(b) Use your answer in part (a) to determine the new price.
New price: $0
Answer:
a) New price = 0.86 * Original price
b) New price = 0.86 * 48200 = $41452
Step-by-step explanation:
Due to environmental considerations, homeowners in a particularly dry area have been asked to use less water than usual. One home is currently using 770
770
gallons per day. This is 710
7
10
of the usual amount of water used in this home.
Answer:
good
those desert people ought to use less water
The coordinates of the vertices of triangle ABC are A(9.-10), B(-15, 0), and C(15, 10). A dilation centered at (0, 0) is perfomed on triangle ABC to produce triangle ABC. The coordinates of the vertices of triangle A'B'C' are A' (13.5, -15), B(-22.5, OJ, and C(22.5, 15). Find the scale factor. will mark brainlyst
50 PTS
Simplify Please
Answer:
a) 1 2/9 or 11/9
b) 37.6
c) 37
Step-by-step explanation:
12 + 62/3 =
i need this answer ASAP
Answer:
32.66
Step-by-step explanation:
Answer:
32.666
Step-by-step explanation:
A person invested $150 in an account growing at a rate allowing the
money to double every 13 years. How much money would be in the
account after 22 years, to the nearest dollar?
Answer:y=485
y=a(2)^t/d
a=150 d=13 t=22
Step-by-step explanation: y=150(2) 22/13
y=484.759843209
y=485
The rate of the interest on the account is 5.48%. Then the amount of money after 22 years is $485.10.
What is compound interest?Compound interest is the interest on a loan or deposit calculated based on the initial principal and the accumulated interest from the previous period.
A person invested $150 in an account growing at a rate allowing the money to double every 13 years.
Then the rate will be
[tex]\begin{aligned} 300 &= 150 (1 + r)^{13}\\\\13 \log (1 + r) &= \log 2\\\\\log (1 + r) &= 0.023156\\\\1 + r &= 1.054766\\\\r &= 0.054766 \approx 0.0548 \end{aligned}[/tex]
Then the amount of money after 22 years will be
[tex]\rm Amount = 150(1 + 0.0548)^{22}\\\\Amount = 150 \times 3.234\\\\Amount = \$ \ 485.1[/tex]
More about the compound interest link is given below.
https://brainly.com/question/25857212
#SPJ2
A real estate agent has 8 master keys to open several new homes. Only 1 master key will open any given house. If 40% of these homes are usually left unlocked, what is the probability that the real estate agent can get into a specific home if the agent selects 3 master keys at random before leaving the office?
Answer:
Step-by-step explanation:
Suppose F represents the value that a room is unlocked.
Then, we can assume that the probability of unlocked homes is:
P(unlocked homes) = P(U)
P(unlocked homes) = 40%
P(unlocked homes) = 0.40
Also, let us represent the value of the locked room with G.
P(locked homes) = P(G)
P(locked homes) = (1 - 0.40)
P(locked homes) = 0.60
Let the probability of selecting a correct key be P(S)
It implies that for the agent to use 3 keys, we have a combination of [tex]^8C_3[/tex] possible ways for the set of keys.
Now; since only one will open the house, then:
P(select correct key) = P(S)
[tex]P(S) = \dfrac{ (^1_1) (^7_2) }{ ^8_3 }[/tex]
[tex]P(S) = \dfrac{21}{56}[/tex]
P(S) = 0.375
Finally, for the real estate agent to have access to specific homes supposing the agent select three master keys at random prior to the time he left his office, Then:
P(F ∪ (G∩S) = P(F) + P(G∩S)
P(F ∪ (G∩S) = P(F) + P(G) × P(S)
P(F ∪ (G∩S) = 0.40 + (0.60×0.375)
P(F ∪ (G∩S) = 0.40 + 0.225
P(F ∪ (G∩S) =0.625
please i really need to know the answer
Answer:
y = 10x + 30
Slope is 10
Y intercept is 30
Clint pays $80
Step-by-step explanation:
Let me know if you need any explanations
Hi please help me as soon as possible:
Rimo spends £588 on a plane ticket and $130 on airport tax. Using £1 = $1.34, what percentage of the total cost does Rimo spend on airport tax?
Give your answer rounded to 1 dp.
PLEASE HURRY I'VE POSTED THREE TIMES THIS QUESTION BUT NO ANSWERS ONLY WATCHERS
Answer:
Percentage = 14.2%
Step-by-step explanation:
Given the following data;
Cost of plane ticket = £588
Airport tax = $130
£1 = $1.34
To find the percentage of the total cost spent on airport tax;
First of all, we would convert the ticket cost in pounds (£) to dollars ($).
Cost of plane ticket = £588 to $ = 588 * 1.34 = $787. 92
Total cost = Cost of plane ticket + Airport tax
Total cost = 787. 92 + 130
Total cost = $917.92
[tex] Percentage \; cost = \frac {130}{917.92} * 100 [/tex]
[tex] Percentage = 0.1416 * 100 [/tex]
Percentage cost = 14.16 to 1 d.p = 14.2%
Therefore, the percentage of the total cost spent on airport tax by Rimo is 14.2 percent.
What is the sum of the interior
angle measures of a polygon
that has 7 sides?
Sum = [?]
Hint: Sum = (n-2)180
Answer:
Sum = 900 degrees.
Step-by-step explanation:
Sum = (n-2)180
=(7-2)180
=(5)180
=900
Answer:
900 degrees
Step-by-step explanation:
The formula for calculating the sum of the interior angles of a regular polygon is : ( n - 2) × 180°. when n is number of sides.
Sum of angles = ( n-2) × 180
Sum of angles = (7-2) × 180
Sum of angles = 5 × 180
Sum of angles = 900 degrees
Ol helvrcrffffcrcrrcffcddcdcr3d
Answer:
C.
Step-by-step explanation:
Figure A is 5 spaces down reflected off of figure B.
Find an explicit rule for each geometric sequence using subscript notation. Use a calculator and round your answer to the nearest tenth if necessary.
The fourth term of the sequence is 234. The sixth term is 104.
The explicit rule for the geometric sequence is an =
Answer:
Hence the explicit rule is a(n) 1184.625.
Whats the answer to x^3 y^0 z^-2
Answer:
[tex]\frac{x^3}{z^2}[/tex]
Step-by-step explanation:
There are no given values, therefore we can't determine a definite answer. However, we are able to simplify the expression.
As we all know that any variable or number to the power of 0 is equal to 1. This means that [tex]y^0 = 1[/tex].
We also know that a negative power can bring the variable down and make it a fraction. This means that [tex]z^-^2=\frac{1}{z^2}[/tex]
Now that we got these two sorted we are able to write it in a simplified form.
Answer: [tex]\frac{x^3}{z^2}[/tex]
PLEASE HELP!! I HAVE 30 MINS
#1) 9a+2-6a
#2) -p^6
#3) 5n^2
#4) -10n^4+9-7n^5+n^6
it is 9a+2-6a is 3a+2
it is -p^6 is -531441
5n^2 is 25n2
-10n^4+9-7n^5n^6 i di not know
An electronic office product contains 5100 electronic components. Assume that the probability that each component operates without failure during the useful life of the product is 0.999, and assume that the components fail independently. Approximate the probability that 2 or more of the original 5100 components fail during the useful life of the product. Use normal approximation. Round your answer to 3 decimal places.
Answer:
The probability that 2 or more of the original 5,100 components may fail during the useful life of the product is:
= 0.001
Step-by-step explanation:
Probability of operating without failure = 0.999
The probability of failed component = 0.001 (1 - 0.999)
The number of components of the electronic office product = 5,100
The number of components that may fail, given the above successful operation = 5.1 (0.001 * 5,100).
Therefore, the probability that 2 or more of the original 5,100 components may fail during the useful life of the product = 0.001
Probability of component failure is the likelihood that a component fails during the useful life of the product. It is expressed as the number of likely failed components divided by the total number of components. This result can be left in decimal form or expressed as a percentage.
Following are the solution to the given expression:
[tex]\to \text{p = p (failure)} = 1 -0.999 = 0.001 \\\\[/tex]
We employ the binomial approximation of the normal distribution with mean.
[tex]\to \mu = np = 5100(0.001) = 5.1 \\\\ \to \text{standard deviation} \ (\sigma) = \sqrt{np(1-P)}[/tex]
[tex]= \sqrt{5100(0.001)(1-0.001)} \\\\ = \sqrt{5.1 \times (0.999)} \\\\= \sqrt{5.0949 } \\\\= 2.2572[/tex]
It require [tex]p(x\geq 2)[/tex] but we find [tex]p(x \geq 1.5)[/tex], because of [tex]0.5[/tex] correction.
Here
[tex]\to z = \frac{X-\mu}{\sigma }[/tex]
[tex]=\frac{1.5-5.1}{2.2572} \\\\ =\frac{-3.6}{2.2572} \\\\ = -1.59 \\\\[/tex]
Calculating the required probability:
[tex]\to p(z \geq -1.59)[/tex]
[tex]=1+ p(z< 1.59) \\\\= 1+ 0.9440826[/tex] , by standard normal table
[tex]= 1.9440826 \approx 1.944[/tex]
Learn more about the probability:
brainly.com/question/14457337
Can you guys help me with these unit rates
Answer:
2. 38
3. 12
5. 7
9. 13