9 / 20 = 45 / 100 = 45%
please give brainliest
Answer: 45%
Step-by-step explanation: 9/20 as a percent is expressed as 45%
make x the subject 4(x-3)/a = y
Answer:
here is an answer x = a*y+3
3 + 2 > 8
/6 − 4 < −2
−3 − 8 ≤ 1
− /4 + 2 ≥ −4
−5 + 8 > 11
Answer:
These answers are not very easy
Please help!
Solve for x
Answer:I'm sorry I dont know it has to do with the inverse of tangent
Step-by-step explanation:
How do I solve this problem using the quadratic formula?
Answer:
Step-by-step explanation:
a = -3 ; b = -6 ; c = -11
D = b² - 4ac
= (-6)² - 4*(-3)*(-11)
= 36 - 132
= - 96
[tex]\sqrt{D}=\sqrt{-96}=\sqrt{96i^{2}} =9.8i[/tex]
[tex]x =\dfrac{-b+\sqrt{D}}{2a} \ ; \ x =\dfrac{-6-\sqrt{D}}{2a}\\\\\\x=\dfrac{6+9.8i}{2*(-3)} \ ; \ x=\dfrac{6-9.8i}{2*(-3)}\\\\\\x=\dfrac{6}{-6}+\dfrac{9.8}{-6}i \ ; \ x=\dfrac{6}{-6}-\dfrac{9.8}{-6}i\\\\\\x=-1-\dfrac{4.9}{3}i \; \ x=-1+\dfrac{4.9}{3}i[/tex]
which function models the data in the table?
Answer:
(A) f(x) = 2 * [tex]4^{t}[/tex]
Step-by-step explanation:
[] We can find our answer by plugging the x values into the functions as t and solving.
-. Using this method, starting with the A function, we find that the first function models the data and we do not need to test the others. I still have shown the work for the others as it is good to check your work.
[✓] f(x) = 2 * [tex]4^{t}[/tex]
(1, 8) }{}{}{ f(x) = 2 * [tex]4^{1}[/tex] = 2 * 4 = 8
(2, 32) }{}{}{ f(x) = 2 * [tex]4^{2}[/tex] = 2 * 16 = 32
(3, 128) }{}{}{ f(x) = 2 * [tex]4^{3}[/tex] = 2 * 64 = 128
-> This pattern continues
[✗] f(x) = [tex]4^{t}[/tex]
(1, 8) }{}{}{ f(x) = [tex]4^{1}[/tex] = 4 ≠ 8
-> This function does not model the data as it does not fulfil the first point
[✗] f(x) = 4 * [tex]2^{t}[/tex]
(1, 8) }{}{}{ f(x) = 4 * [tex]2^{1}[/tex] = 4 * 2 = 8
(2, 32) }{}{}{ f(x) = 4 * [tex]2^{2}[/tex] = 4 * 4 = 16 ≠ 32
-> This function only models (1, 8) but does not fully model the data
[✗] f(x) = [tex]8^{t}[/tex]
(1, 8) }{}{}{ f(x) = [tex]8^{1}[/tex] = 8
(2, 32) }{}{}{ f(x) = [tex]8^{2}[/tex] = 64 ≠ 32
-> This function only models (1, 8) but does not fully model the data
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
On January 22 in 1943, the town of Spearfish, South Dakota, set the record for the world’s fastest temperature change. At 7:30 a.m., the temperature was `-4`°F. By 7:32 a.m., the temperature was `45`°F. By 9:00 a.m. the same day, the temperature was `54`°F. By 9:27 a.m., the temperature was `-4`°F. How many degrees did the temperature change each minute from 9:00 to 9:27? Make sure to show whether the change was positive or negative.
The average rate of change between from 9:00 to 9:27 is 2.15°F increase per minute
Linear equation
A linear equation is in the form:
y = mx + b
where y, x are variables, m is the rate of change (slope) and b is the y intercept.
Let y represent the temperature at x time.
By 9:00 a.m. the same day, the temperature was 54°F. By 9:27 a.m., the temperature was -4°F
m = (-4 - 54)/27 minutes = -2.15
The average rate of change between from 9:00 to 9:27 is 2.15°F decrease per minute
Find out more on Linear equation at: https://brainly.com/question/14323743
Given g(x)=-x+4g(x)=−x+4, find g(5)g(5) whats the answer?
Answer:
g(x) = -4g(x) = -x+4
= g(5) = -4(5) = -(5)+4
= g(5) = -20 = -1
PLEASE HELP ME
Which expression is equivalent to –8(–5k+4)+6k
Answer:
the last option (-5k+4)-8 + 6k
Step-by-step explanation:
-8(-5k+4)+6k
to simplify, begin by distributing the -8 so that parentheses are removed:
=(-8)(-5k) + (-8)(4) + 6k
=40k - 32 + 6k
combine 'like terms':
46k-32
the only answer which simplifies to 46k-32 is the last option:
the only difference between the original problem and the last option is that the -8 value is behind the parentheses instead of in front of it; it simplifies to be 46k-32
100 POINTS!!!!!!!!!!
the fiest answer is x=6 for the second one the answer is x=4
Step-by-step explanation:
x+15/5x+1 =15/35 then cross multiply
1st one
Answer:
x = 6 , x = 4
Step-by-step explanation:
A line parallel to a side of a triangle and intersecting the other 2 sides then divides those sides proportionally, that is
[tex]\frac{x}{18}[/tex] = [tex]\frac{28-21}{21}[/tex] = [tex]\frac{7}{21}[/tex] = [tex]\frac{1}{3}[/tex] ( cross- multiply )
3x = 18 ( divide both sides by 3 )
x = 6
(14)
[tex]\frac{x+5}{15}[/tex] = [tex]\frac{5x+1}{35}[/tex] ( cross- multiply )
15(5x + 1) = 35(x + 5) ← distribute parenthesis on both sides
75x + 15 = 35x + 175 ( subtract 35x from both sides )
40x + 15 = 175 ( subtract 15 from both sides )
40x = 160 ( divide both sides by 40 )
x = 4
Jenifer is buying popcorn and sodas with her friends at the movies. They can carry at most 9 items. They want at least 4 sodas and at least 2 bags of popcorn. Let x represent the number of sodas and y represent the bags of popcorn.
Which system of inequalities models this situation?
Answer:
x+y=6
Step-by-step explanation:
is it multiple choice?
The system of inequalities models this situation would be;
x + y ≤ 9
x ≥ 4
y ≥ 2
Given that;
Jenifer is buying popcorn and sodas with her friends at the movies.
They can carry at most 9 items.
They want at least 4 sodas and at least 2 bags of popcorn.
Let us assume that;
x represent the number of sodas.
And y represents the bags of popcorn.
Hence for the statements,
They can carry at most 9 items.
x + y ≤ 9
They want at least 4 sodas and at least 2 bags of popcorn.
x ≥ 4
y ≥ 2
Therefore, The system of inequalities would be;
x + y ≤ 9
x ≥ 4
y ≥ 2
To learn more about inequality visit:
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Anyone know the answer to this
Answer:
Part A:
- angle ACB= 60° (ABC equilateral triangle.)
- Angle ECD=EDC= (180°-32°)/2= 148/2= 74° (sum of angles in a triangle is equal to 180, and triangle ECD is isosceles since it's given that CE=DE.
- x= 180°-(60°+74°)
= 180°-134°
= 46°
x= 46°
Part B:
120°
what describes the demention of a line
Answer:
A line is a straight one-dimensional geometric undefined figure which has no thickness. ... It has only length therefore, it is one dimensional. Hence, the best describes the dimensions of a line is "A line has one dimension because it is made up of all points that extend infinitely in either direction.
Answer:Well it's very simple.
It got only one dimension, which is it's length.
Just like a cube have 3 dimensions length,height and breadth
Similarly a square have 2 dimensions length and breadth
Step-by-step explanation:
In the ordered pair below, which value represents the input to a function?
(4, 20)
4 units to the right + 20 units up
Step-by-step explanation:
can I get brainliest points
In the ordered pair (4, 20), the value 4 represents the input to a function.
Given data:
In the ordered pair (4, 20), the value 4 represents the input to a function. In a function, each input value is associated with a unique output value. The input value is also referred to as the "independent variable" or the "domain" of the function. It is the value for which we want to determine the corresponding output or "dependent variable."
In this case, the ordered pair (4, 20) indicates that when the input value is 4, the output value is 20. This means that there exists a function that, when given the input 4, produces the output 20. The input value, 4, is the specific value for which we are interested in understanding the behavior or relationship described by the function. The output value, 20, is the result of applying the function to the input value.
Hence, the value 4 in the ordered pair (4, 20) represents the input or independent variable of the function.
To learn more about function rule, refer:
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Estimate the slope for the line of best fit for the graph below.
Answer:
money decrease linearly with increase in time
Complete the remainder of the table for the given function rule
what is the set of value used for the independent variable?
Answer:
The set of all the values which may be input into a function. That is, the set of all the values the independent variable may assume. Graphically, the domain is the set of all the x-coordinates.
Rachel is making nachos for a party. The recipe calls for 2/3 cup of cheese for each plate of nachos. How many full plates of nachos can Rachel make with 5 cups of cheese?
Answer:
7
Step-by-step explanation:
To find the answer you have to divide 5 by 2/3, if you use a calculator you'll get the answer 7.5, which isn't a whole so simply round it down to 7; as if you rounded it up to 8 you'd have way too many plates of nachos to actually be able to make that amount with how much cheese you have lol, hope this helped !!!
dont bs just answer the question dont play with me
Explain why you cannot factor the trinomial x2−15x+3
Question 8 options:
There are no factors of -15 that add up to 3.
It can be factored
There are no factors of 3 that add up to -15
Lets check how?
Factors of 3=1,3
Max value possible=1+3=4
4 is far bigger than -15Minimum value=-1-3=-4
-4 is also bigger than -15So Verified
Answer: x2 – 10x + 25 = (x – 5)(x – 5)
= (x – 5)2
A car travels a distance of 540 km in 6 hours what speed did he travel at
Speed = Distance / time
Speed = 540 km / 6 hours
Speed = 90 km/hr.
During second period, Jaylen completed a grammar worksheet. He got 3 questions correct and 12 questions incorrect. What percentage did Jaylen get correct?
Answer:
20%
Step-by-step explanation:
A total of 15 questions.
3 divided by 15 = .20 or 20%
Complete the equation of the line whose slope is -2 and y-intercept is (0,3).
Answer:
y= -2x + 3
Step-by-step explanation:
Congruency means that two figures or items are exactly the same size and shape. Where in life would it be vitally important for two or more items to be congruent?
Can somebody help me answer this please for my discussion for math
Answer:
Airplane LANDING gear , all four tires on a car being the SAME size , even little things like the feet of a table to make sure everything is evened out.
In other words-
Congurency can be literally anything from earings to shoe size. The main reason for congruent things in the real world nowadays is to mass produce steel works or building sites.
Help!!! It’s an emergency I need the solution for y=3/4x
5/2x+2y=5
45 % of z is 72. Find the value of z
Mr. Haley is leaning a ladder against the side of his house to repair the roof.
The top of the ladder reaches the roof, which is 16 feet high
The base of the ladder is 12 feet away from the house, where Mr. Haley's son is holding it steady
how long is the ladder
20 Feet long. Based on the given conditions, formulate: square root of 20 to the power of 2 +16 to the power of 2
Evaluate the equation/expression: 20
get the result: 20
Answer: 20
what pecent of 50 is 7
Answer: 14 percent
Step-by-step explanation:
Not really needed.
You have a set of 10 cards numbered one to 10 you choose a card at random event A is choosing a number less than seven. event B is choosing an odd number. calculate the probability
Answer:
12) P(A ∩ B)Step-by-step explanation:
Event A:
A ∈ {1, 2, 3, 4, 5, 6}Event B:
B ∈ {1, 3, 5, 7, 9}Both events result in the set:
A ∩ B = {1, 3, 5}Required probability is:
P(A ∩ B) = 3/10Correct choice is 12
How to find the domain of a function algebraically.
Answer:
we make the denominator equal to zero then we get the domian
Write an expression below that includes: one variable, two operations and three terms?
3x-2+4=8
4x+5÷5=5
There's more but these one came to my mind lol
hope this helps
An item is regularly priced at $15. Frank bought it on sale for 75% off the regular price.
Answer:
3.75$
Step-by-step explanation:
15$ - 75% = 3.75$
The sale price is 3.75$.
