we get that
\(a^2=\frac{171}{19}=9\rightarrow a=3\)therefore the function is
\(y=19\cdot3^x\)How do I do this please help
Answer:
3x^2 + 12x - 15
Step-by-step explanation:
(x+5) * (x - 1) * 3
(x^2 + 5x - x - 5) * 3
(x^2 + 4x - 5) * 3
(3x^2 + 12x - 15)
3
\(3 \sqrt{81} \)
what's the answer
Answer will be 27.
Given,
3√81
Now, to solve the expression the squares of whole numbers and square roots for some numbers must be known.
For example, squares of
1² = 1
2² = 4
3² = 9
4² = 16
5² = 25
6² = 36
7² = 49
8² = 64
9² = 81
10² = 100
Square roots,
√100 = 10
√81 = 9
√64 = 8
√49 = 7
√36 = 6
√25 = 5
√16 = 4
√9 = 3
√4 = 2
√1 = 1
Now ,
3√81 = 3× 9
= 27.
Thus the value is 27.
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Factor Completely 3x2-7x+2 and please show work !!
Answer:
8-7x
Step-by-step explanation:
3x2-7x+2
6-7x+2
8-7x
Evaluate: 3.2^t when t = 4 *
Answer:
48
Step-by-step explanation:
In pemdas, powers and roots always come first
3 * 2^t
3 * 2^4
3 * 16
Then simplify the rest
48
Write 2.5896 X 10° in standard notation.
Answer:
2.5896
Explanation:
Zero power rule: The zero exponent rule states that any number raised to a power of zero equals one.
10^0 is 1, so nothing changes
Answer assappp hellpp
The graph represents the piecewise function: f (x) ={ , if -3
The domain and the range of the function are
Domain = (-∝, ∝)Range = (0, ∝)How to determine the domain and range of the functionFrom the question, we have the following parameters that can be used in our computation:
The graph
The graph is a piecewise function
When combined gives an absolute function
The rule of a function is that
The domain is the set of all real numbers
This means that the input value can take all real values
However, the range is greater than the constant term
In this case, it is 0
So, the range is y > 0
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Question
The graph represents the piecewise function:
f(x) =
What is the domain and range of the function
Brainliest if correct
Answer:
3 and -10
Step-by-step explanation:
-6-(-9)=x
-6+9=x
3=x
34-44=x
-10=x
what is equivalent to (32−−√5)13
Answer:
Your answer is 416 + 13 \(\sqrt{5}\).
Step-by-step explanation:
Which are the solutions to 49x2 – 36 = 0
A. r=
7
ő
C. x=+
7
B. x=
49
36
D. No real solution
Write an equation in standard form that has a slope of –5/2 and a y-intercept of –2.
Answer:
-5/2+-2
Step-by-step explanation:
2. mrs nepali draws rs 19800 as her monthly salary in a wholesale cosmetic shop and certain commission is given as per the monthly sales. if the sales of a month is rs 1200000 and her total income of the month including commission is rs 31800 find the rate of commission. * O 1% 4% 3% 2%
what is What is the image of (4,−1) after a reflection over the line y=x?
I HOPE IT WILL HELP YOU.
Thank you.
25. Find the value of the side marked y in the diagram below? 10cm 8cm (a) 7cm (b) 8cm (c) 14cm (d) 6cm (e) 15cm Y
Answer:
d
Step-by-step explanation:
using Pythagoras' identity in the right triangle.
the square on the hypotenuse is equal to the sum of the squares on the other two sides , that is
y² + 8² = 10²
y² + 64 = 100 ( subtract 64 from both sides )
y² = 36 ( take square root of both sides )
y = \(\sqrt{36}\) = 6 cm
Answer:
(d) 6 cm
Step-by-step explanation:
As the given triangle is a right triangle, we can use Pythagoras Theorem to calculate the side marked y.
Pythagoras Theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.
\(\boxed{\begin{minipage}{9 cm}\underline{Pythagoras Theorem} \\\\$a^2+b^2=c^2$\\\\where:\\ \phantom{ww}$\bullet$ $a$ and $b$ are the legs of the right triangle. \\ \phantom{ww}$\bullet$ $c$ is the hypotenuse (longest side) of the right triangle.\\\end{minipage}}\)
From inspection of the given triangle:
a = 8 cmb = yc = 10 cmSubstitute these values into the formula and solve for y:
\(\begin{aligned}a^2+b^2&=c^2\\\implies 8^2+y^2&=10^2\\64+y^2&=100\\64+y^2-64&=100-64\\y^2&=36\\\sqrt{y^2}&=\sqrt{36}\\y&=6\end{aligned}\)
Therefore, the length of the side y is 6 cm.
What is The true solution to In 20 +in 5=2in x?
Answer:
x = 10
Step-by-step explanation:
Combining the logarithms, you have ...
ln(20·5) = ln(x²)
100 = x² . . . . . take the antilogs
10 = x . . . . . . . take the positive square root
_____
Alternate solution
ln(2·2·5) +ln(5) = 2·ln(x) . . . . . . . factor 20
2ln(2) +ln(5) +ln(5) = 2·ln(x) . . . . rearrange ln(20)
ln(2) +ln(5) = ln(x) . . . . . . . . . . . . divide by 2
ln(10) = ln(x) . . . . . . . . . . . . . . . . combine logs on the left
10 = x
_____
These solutions make use of the rules of logarithms ...
ln(ab) = ln(a) +ln(b)
ln(a²) = 2·ln(a) . . . . . same as the first rule for a=b
Find the distance between (-2, 6) and (1, 3).
Answer:
3√2
Step-by-step explanation:
Distance (d) = \(\sqrt{((1 - -2)^2 + (3 - 6)^2)}\)
= \(\sqrt{((3)^2 + (-3)^2)}\)
= √18
= 3√2
Suppose that fund-raisers at a university call recent graduates to request donations for campus outreach programs. They report the following information for last year’s graduates:Size of donation$0$10$25$50Proportion of calls0.450.300.200.05Three attempts were made to contact each graduate. A donation of $0 was recorded both for those who were contacted but who declined to make a donation and for those who were not reached in three attempts. Consider the variable x = amount of donation for the population of last year’s graduates of this university.a. Write a few sentences describing what you think you might see if the value of x was observed for each of 1000 graduates.b. What is the most common value of x in this population?c. What is P(x ≥ 25)?d. What is P(x > 0)?
Part a: The four layers can be stacked up to 1,000.
Part b: Most common value of x in this population $0 gift .
Part c: P(x ≥ 25) = 0.30.
Part d: P(x > 0) = 0.60
Explain the term probability?The probability is a numerical representation of the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging form 0% to 100% can be used to describe probabilities.Part a: It is also anticipated that the students will donate nothing, or around 1000 x 0.40 = 400 of both.
To donors 10, about 1000 x 0.30 = 300.
1000 x 0.25 = 250 donors who gave $25, and 1000 x 0.05 = 50 donors who gave $50.
Its frequencies would approximate the likelihood but not exactly.
The four layers can be stacked up to 1,000.
Part b:
A $0 gift is the population's key value of x in point b, and 40% of students make this choice.
Part c: P(x ≥ 25)
P(x ≥ 25) = 0.25 + 0.05
P(x ≥ 25) = 0.30
Part d: P(x > 0)
P(x > 0) = 1 - P(x = 0)
P(x > 0) = 1 - 0.40
P(x > 0) =0.60
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Determine what type of model best fits the given situation: A 4% raise in salary each year.
the models aren't given..
Answer: no models given
Step-by-step explanation:
IF U GET IT RIGHT ILL MARK BRAINLIEST
Answer:
MAR=180-165
=15 IS THE ANSWER
What is the value of (x^2 + (2y)) ÷ ((2w) + 3z) for w = 2, x = 5, y = 8, and z = 3?
Answer:
For w = 2, x = 5, y = 8, and z = 3,
\(\frac{x^2+2y}{2w+3z}=\frac{41}{13}\)Explanation:
Given the expression:
\(\frac{x^2+2y}{2w+3z}\)for w = 2, x = 5, y = 8, and z = 3, we have:
\(\begin{gathered} \frac{5^2+2(8)}{2(2)+3(3)} \\ \\ =\frac{25+16}{4+9} \\ \\ =\frac{41}{13} \end{gathered}\)Please help me
Will give brainly
Answer:
Step-by-step explanation:
#4We have a liner function
y=kx+b
Where \(k=-\dfrac{2}{3}\) -slope ; b- y intersept
And we know that it passes through the point (-3 ; 3 )
Then :
\(\displaystyle -\frac{2}{3} \cdot( -3) +b=3 \\\\ b+2=3 \\\\ b=1 \\\\\)
We have function :
\(\displaystyle y=-\frac{2}{3} x+1\)
#5\(\rm \displaystyle y=\frac{4}{3}x-4 \\\\ \rm Where:\\\\ a) \ \frac{4}{3} -slope \\\\ b) -4\ - y\ \ intersept \\\\ c) \ The \ graph \ in \ attached \ file\)
I’m new to this and I need help on this algebra problem because I never learned this before
SOLUTION
The given equation is:
\(2(-\frac{3}{9})=(-\frac{3}{9})2\)Recall that the Commutative Property of mutiplication is given as:
\(a\cdot b=b\cdot a\)Therefore the equation illustrates Commutative Property of Multiplication.
A florist used 16 flowers to make a bouquet, including 6 lilies.
What is the probability that a randomly selected flower will be a lily?
Answer:
3/8
Step-by-step explanation:
Values we are given :
16 flowers in total6 liliesWe know that :
Probability of selecting an object from a group of items = Number of objects / Number of itemsTherefore,
Probability of selecting a lily = Number of lilies / Number of flowersP = 6/16P = 3/8Alondra is asked about her age. She answers as follows. "My age is 6 more than four times the age of my son." How old is her son if Alondra is 46 years old?
Answer:
10 years old
Step-by-step explanation:
lets break it down:
6 more means +6
four times means *4
so if her son is x years old, she is 4x+6
since we know she's 46, we know that 4x+6=46
now we just solve the equation
4x+6=46
-6 on both sides
4x=40
/4 on both sides
x=10
Tony bought a shirt for a friend's birthday for $27.00. He liked the shirt so much that he returned to the store a week later to buy a shirt for himself. Tony found the price of the shirt had changed to $32.13. Rounded to the nearest whole percent, what is the percent increase in the price of the shirt?
You have to divide 27 by 100 and that gives you .27.
If you multiply until you reach 32.13 with different numbers you get 19. It is a 19% increase.
Expand and simplify x(3x + 5)-5(2x - 1)
PLEASE HELP ME AND ANSWER THIS QUESTION !! I need this for my assessment revision
The simplified expression of x(3x + 5)-5(2x - 1) is 3x² - 5x + 5
How to expand and simplify the expressionFrom the question, we have the following parameters that can be used in our computation:
x(3x + 5)-5(2x - 1)
Open the brackets
So, we have
3x² + 5x - 10x + 5
Evaluate the like terms
So, we have
3x² - 5x + 5
Hence, the simplified expression is 3x² - 5x + 5
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What's the missing addend 634 + =644
Answer:
10
Step-by-step explanation:
it is 10 cause 634+10=644
Answer:
10
Step-by-step explanation:
What is the missing addend?
We can fill in the blank with x
634+x=644
Now we need to get x to the other side
The rule to do this is what we do on one side we have to do the same thing to the other side
so if we subtract 634 on one side we also have to do that on the other side as well:
634-634+x=644-634
634-634 is 0
So it is
x=644-634
644-634 is 10
x=10
So the missing addend is 10
Hope this helps!
A sample of 36 observations is selected from one population with a population standard deviation of 4.2. The sample mean is 101.5. A sample of 50 observations is selected from a second population with a population standard deviation of 5.0. The sample mean is 100.1. Conduct the following test of hypothesis using the 0.10 significance level.H0 : μ1 = μ2H1 : μ1 ≠ μ2a. This is a_________tailed test.b. State the decision rule. (Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)The decision rule is to reject H0 if z is ___________the interval.c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding H0?e. What is the p-value? (Round your answer to 4 decimal places.)
Answer:
Step-by-step explanation:
Given that :
the null and the alternative hypothesis are computed as :
\(H_o: \mu_1 = \mu_2\)
\(H_a : \mu _1 \neq \mu_2\)
This is a two tailed test
This is because of the ≠ sign in the alternative hypothesis which signifies that the rejection region in the alternative hypothesis are at the both sides of the hypothesized mean difference .
Decision Rule: at the level of significance ∝ = 0 . 10
The decision rule is to reject the null hypothesis if z < - 1 . 64 and z > 1 . 64
NOTE: DURING THE MOMENT OF TYPING THIS ANSWER THERE IS A TECHNICAL ISSUE WHICH MAKES ME TO BE UNABLE TO SUBMIT THE FULL ANSWER BUT I'VE MADE SCREENSHOTS OF THEM AND THEY CAN BE FOUND IN THE ATTACHED FILE BELOW
a service station has 92-octane and 98-octane gasoline. How many liters of each should be mixed to provide 12 liters of 96-octane gasoline needed for chemical research
we use the rectangle rule
96-92=4 parts of 92 octane
98-96=2 parts of 98 octane
4x+2x=12
6x=12
x=2
4x=8 liters of 92 octane
2x=4 liters of 98 octane
Find two consecutive odd images interfere whose sum is 36
Which of the following equation could be used to solve the problem
Answer:
Step-by-step explanation:
The integers are: x, x+2
Them, x + x+ 2 = 36
2x +2 = 36