Answer:
okay show me itStep-by-step explanation:
I am up for it whatever you needYESS
Because these are f r e e points
please help me please
Answer: x=9
Step-by-step explanation: -9x+1=-80
subtract 1 on both sides
-9x=-81
divide both sides with negative 9
x=9
Check: -9(9)+1=-80
-81+1=-80
-80=-80
Answer:
the answer is X=9
Step-by-step explanation:
hope it helps:)
The Martin family and the Kelly family each used their sprinklers last summer. The water output rate for the Martin family's sprinkler was 30L per hour. The water output rate for the Kelly family's sprinkler was 35L per hour. The families used their sprinklers for a combined total of 60 hours resulting in a total water output of 1925L. How long was each sprinkler used?
Answer:
The Martins used their sprinkler for 35 hours, while the Kellys used their sprinkler for 25 hours.
Step-by-step explanation:
As the Martins and the Kellys used their sprinklers for 60 hours combined last summer, and the water output rate of the Martins' sprinkler is 30 liters per hour, while the Kelly's is 35 liters per hour To determine how many hours each family used their sprinklers, knowing that in total 1925 liters of water were used, the following logical reasoning must be carried out:
There is a 5 liter difference between the Kelly sprinkler and the Martin sprinkler. If both used 30 liters of water per hour, for 60 hours 1800 liters (30 x 60) would have been used. Therefore, there is an excess of 125 liters that corresponds to an excess of consumption, attributable to the Kelly sprinkler, which consumes 5 liters more of water per hour than the Martin's. Thus, since 125/5 equals 25, in total the Kellys used their sprinkler for 25 hours, while the Martins did it for 35 hours.
This reasoning is proved with the following calculation:
25 x 35 = 875
35 x 30 = 1,050
875 + 1,050 = 1,925
is the relationship in this picture a function
if so why?
Answer:
PLEASE BE CAREFUL NightmareMech14 IS A PREDATOR HE ASKS FOR VIDEOS OF GIRLS AND TRYS TO GET THEM TO EMAIL HIM DONT GIVE HIM ANY INFORMATION STAY SAFE COPY AND PASTE THIS EVERYWHERE
Step-by-step explanation:
1.
ENGINEERING At an engineering school, students are challenged to design
a container that prevents an egg from breaking when dropped from a height of
50 feet. Write an equation giving a container's heighth (in feet above the
ground after t seconds. How long does the container take to hit the ground?
Answer:
b
Step-by-step explanation:
b
2 What is the solution set of
|4x - 1|= 3?
Answer:
Exact Form:
x = 1 , − 1/ 2
Decimal Form:
x = 1 , − 0.5
Step-by-step explanation:
QUICK MATH
Cecil weighs the same as the combined weight of Bruce and Alan. Use the expressions you found in parts A and B to write an expression
for Cecil's weight in terms of Dylan's weight.
Answer: Cecil’s weight is the sum of Alan's weight and Bruce's weight.
Alan’s weight in terms of Dylan's weight is 2d + 3.
Bruce’s weight in terms of Dylan's weight in 3d − 12.
So, the expression for Cecil’s weight in terms of Dylan’s weight is (2d + 3) + (3d − 12).
Find the derivation of y=sin (2x2 + 3x-4)<br />a. -cos (4x +3) b. -(6x2+3) cos (2x3+3x-4) c. Cos (2x3+3x-4)<br />d. (6x3+3) cos (2x3+3)<br />
Let y = f(x)
f(x) = sin x
g(x) = (2x^2 + 3x - 4)
Use the chain rule.
We want y' = f' (g(x)) • g'(x).
y' = cos(2x^2 + 3x - 4) • (4x + 3)
Done.
Divide the fractions: 20 divided by 15/16 =
Final Answer:
[tex]\frac{64}{3}[/tex]
Step-by-step explanation:
20 ÷ [tex]\frac{15}{16}[/tex]
[tex]\frac{20}{1}[/tex] ÷ [tex]\frac{15}{16}[/tex]
(reciprocal method):
[tex]\frac{20}{1}[/tex] ÷ [tex]\frac{16}{15}[/tex]
(change the operation to multiplication)
[tex]\frac{20}{1}[/tex] × [tex]\frac{16}{15}[/tex] = [tex]\frac{320}{15\\}[/tex] (multiply, then reduce)
64/3 ⇒ 64/3
The value of x in the expression 20 divided by 15/16 will be 21.33 .
Given , 20 divided by 15/16
Division property:
The rules for division are:
(1) positive ÷ positive = positive
(2) positive ÷ negative = negative
(3) negative or ÷ negative = positive
Here both the numbers are positive. Apply rule 1.
20 divided by 15/16
[tex]\frac{20}{\frac{15}{16} }[/tex]
= [tex]\frac{20 \times 16}{15}[/tex]
= 21.33
Know more about division,
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Select the correct answer.
The graph below represents the following system of inequalities.
y> - 2
y > 21 + 2
Which point (x,y) satisfies the given system of inequalities?
OA (-1,-6)
OB. (1,-6)
OC. (-3,-1)
The answer is C: (-3,-1)
To test if points satisfy an equation, all you need to do is test the numbers in both of the equations it provides you
Here is proof the answer is C :
y > x - 2
(lets plug in point C)
-1 > -3 - 2
solve
-1 > -5 ?
Yes this statement is true- onto the next inequalitity!
y > 2x + 2
-1 > 2(-3) + 2
solve
-1 > -6 + 2
-1 > -4 ?
Yes, this inequality is true too!
Know we know answer c (-3,-1) is the right answer!
The point (x,y) satisfies the given system of inequalities is C. (-3,-1).
What is a solution set to an inequality or an equation?If the equation or inequality contains variable terms, then there might be some values of those variables for which that equation or inequality might be true. Such values are called solution to that equation or inequality.
Given that The graph below represents the following system of inequalities.
y> - 2
y > 21 + 2
So, y > x - 2
Lets plug in point C;
-1 > -3 - 2
solve;
-1 > -5 ?
Yes this statement is true- onto the next inequalitity.
y > 2x + 2
-1 > 2(-3) + 2
solve;
-1 > -6 + 2
-1 > -4 ?
Yes, this inequality is true too!
Therefore, the point (x,y) satisfies the given system of inequalities is C. (-3,-1).
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Please answer this correctly without making mistakes
Dale should use the $15 dollars off coupon to save the most money which costs 47.00.
25% off of 47.00 is 45.49.
$15 off of 47.00 is 32.00.
The $15 off coupon makes the DVD player cost less, so he should use that one.
What is the approximate area of the shaded sector in the circle shown below?
А. 4.68 in2
В. 17.3 in2
C. 34.6 in 2
D. 9.36 in2
Answer:
The answer is B, sorry if I'm wrong.
Step-by-step explanation:
Answer:B=17.3 in2
Step-by-step explanation:
For every 4 regular sodas sold at a market, there are 2 diet sodas sold. What is the ratio of diet sodas sold to the total number of sodas sold?
Answer:
1/3
Step-by-step explanation:
The total number of sodas sold is 6, which means the amount of diet soda compared to that is 2/6. This can be further simplified to 1/3.
Find the 6th term of the geometric sequence whose common ratio is
3/2
and whose first term is 2.
Answer:
-3072
Step-by-step explanation:
HEEELLLLP GRADES ARE DUE In 4 HOURS
0.13(x + 2000 ) = 6,240
What is x?
Answer:
4240 is what x is eq to
Step-by-step explanation:
tony earns $100 for walking 5 dogs. how much would he earn for each dog
Answer:
500
Step-by-step explanation:
Answer:
20$
Step-by-step explanation:
because 20*5 =100 which 20 times 5 is the same thing as adding 20+20
+20+20+20 witch is 20$ per dog he walks. hope this helps!
Y= |x| + 2
Complete the table below
Answer:
5
3
2
3
5
Step-by-step explanation:
What is the value of x?
–2x – x + 3 = –12
Answer:
x = 5
Step-by-step explanation:
-2 -1(coeffcient of -x) = -3
-3x +3 =-12
subtract 3 (the constant) from both sides
cancelling it on the left and leaving -3x = -15
divide each side by -3 leaving x and 5
x = 5
Function f is an exponential function. It predicts the value of a famous sculpture, in thousands of dollars, as a function of the number of years since it was last purchased.
What equation models this function?
Enter your answer in the box.
f(x)=
Answer:
there you go took me a second but I got it
What are the real and imaginary parts of the complex number?
10−7i
The real part:
The imaginary part:
Answer:
Real: 10
Complex: -7i
Step-by-step explanation:
i is imaginary.
The real part of the complex number is 10 and the imaginary part of the complex number is -7i.
What is complex number?The complex number is of the form a+ib where a and b are real numbers.
The given number is 10-7i.
Compare the given number with a+ib and determine the values of a and b.
a=10
b=-7
In the complex number, a+ib the real part is a and b is the imaginary part.
So, the real part of the given number is 10 and the imaginary part is -7i.
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The GCF of 15 and 27 is _____. Numerical Answers Expected! Answer for Blank 1:
Answer:
the answer is 3 i just did the test and btw i like your profile pick anyways not the point just know the answer is 3
Step-by-step explanation:
Which expressions represent the sum of exactly two terms?
Choose 2 answers:
(Choice A)
xy
(Choice B)
m^4+6n
(Choice C)
3+7s+t
(Choice D)
a+c
Answer:
Step-by-step explanation:
The answer is a+c and 3+7s+t
Bacuase both term have single power
pls help I will fail 10th grade
Answer:
[tex]x ^{2} + 6x + 9 \\ \: = x ^{2} + (3 + 3)x \: + 9 \\ = x {}^{2} + 3x + 3x \: + 9 \\ \: \: \: \: = x(x + 3) + 3(x + 3) \\ = (x + 3) \: \: \: \: \: (x + 3)[/tex]
So, the Answer is (x + 3) (x + 3)
3(1)+2(_)=6
plz help on filling in the blank
Answer:
x = 3/2
Step-by-step explanation:
Let's solve your equation step-by-step.
(3)(1)+2x=6
Step 1: Simplify both sides of the equation.
(3)(1)+2x=6
3+2x=6
2x+3=6
Step 2: Subtract 3 from both sides.
2x+3−3=6−3
2x=3
Step 3: Divide both sides by 2.
2x/2 3/2
x = 3/2
Hope this helps :)
A holiday tree is 4 feet 8 inches tall. There are 2.54 centimeters in one inch. What is the tree’s height in centimeters?
Answer:
The tree's height is 142.24 cm.
Step-by-step explanation:
There are 12 inches in a foot. This means that 4 feet equal 4 * 12 = 48 inches. Since there are 8 more inches, you add 8 to 48. The sum is 56. There are 56 inches in 4 feet and 8 inches.
Now, to convert:
56 * 2.54 = 142.24 (inches to centimeters)
The tree's height is 142.24 cm.
which equation represents a linear function?
Answer:
Equation 3
Step-by-step explanation:
Answer:Equation 3
linear functions dont have exponents
Step-by-step explanation:
What are the coordinates of the origin?
(1,1)
(0,0)
(-1,1)
(1,-1)
Answer:
(0,0)
Step-by-step explanation:
Answer:
0,0 because that’s were it starts at
Step-by-step explanation:
Can i get brainiest think
Perform the indicated operation and simplify the result. Leave your answer in factored form.
[tex]\frac{\frac{5x}{x^{2} -4} }{\frac{8x}{x+2} }[/tex]
Answer:
[tex]\frac{x}{y} \frac{5x}{\frac{x^{2} -4}{\frac{8x}{x+2} } }\\\\=\frac{5x(x+2)}{8x(x^{2} -4)}\\\\=\frac{5(x+2)}{8(x+2)(x-2)}\\\\=\frac{5}{8(x-2)}\\\\=\frac{5}{8}.\frac{1}{x-2}[/tex]
Step-by-step explanation:
Step-by-step explanation:
[tex] \frac{ \frac{5x}{ {x}^{2} - 4 } }{ \frac{8x}{x + 2} } = \frac{5x}{ {x}^{2} - 4 } \times \frac{x + 2}{8x} = \frac{5x + 10}{ {8x}^{2} - 32} \\ [/tex]
hope it helps:)
- Isabel has a mother dog and her puppy that look
exactly alike. The puppy wcighs 6 pounds, and the
mother weighs 48 pounds. Assuming the two dogs are
similar, what is the scale factor of the dilation?
Answer:
8
Step-by-step explanation:
Explain how the vertical line test was robes that a relation is not a function.
In statistical inference for categorical data:___________.
a. Normal data is always a condition for inference.
b. Normal data is never one of the inference assumptions.
c. Normal data or large enough total sample size is one of the inference assumptions.
Answer:
b. Normal data is never one of the inference assumptions.
Step-by-step explanation:
A categorical data specifies among two or more groups, which one each observation belongs to, and one or more explanatory variables that can be used to predict this membership.
So, there are two propositions in statistical inference for categorical data
1. That each data in a cell is independent of the others.
2. That samples are randomly drawn.
Thus, there is no room for normality.