Step-by-step explanation:
it is true though because
4 x -3 = -12
and
-12 - 2 = -14
Which graph represents -5x+4y > -1
Answer:
Were is the graph
Step-by-step explanation:
show me the graph
FOR 20 POINTS! GIVE REAL ANSWERS PLEASE. THANKS!
Davon's solution to the equation -2(x - 5) + 3 = -4 is shown below.
-2(x - 5) + 3 = -4
Step 1 -2x - 5 + 3= -4
Step 2 -2x - 2 = -4
Step 3 -2x = -2
Step 4 x = -1
In which step did the first mistake occur?
Step 1
Step 4
Step 2
Step 3
Answer:
8.5
Step-by-step explanation:
-2(x-5)+3=-4
Step 1 distribute
−2+10+3=−4
Step 2 add the numbers
-2x+13=-4
Step 3 subtract 13 from both sides of the equation
−2-13+13=-4-13
Step 4 get ride of the two 13
-2x=-4-13
Step 5 subtract -4 subtract 13
-2x=-17
Step 6 divide -17 by -2
-2x/-17
Step 6 answer
8.5
Write the equation of a line that is parallel to x = -7 and
passes through (-1,8)
Answer:
y=-7x+1
Step-by-step explanation:
Evaluate the function for x = 2,3,4
F(x) =2x-7-3
Answer:
below in bold
Step-by-step explanation:
f(x) = 2x - 7 - 3
~Combine like terms
f(x) = 2x - 10
When x = 2...
f(x) = 2(2) - 10
f(x) = 4 - 10
f(x) = -6
When x = 3...
f(x) = 2(3) - 10
f(x) = 6 - 10
f(x) = -4
When x = 4...
f(x) = 2(4) - 10
f(x) = 8 - 10
f(x) = -2
Best of Luck!
In triangle RST, m∠T is 5° more than m∠R, and m∠S is 10° less than m∠T. What is the measure of each angle?
Answer:
R=60
S=55
T=65
Step-by-step explanation:
[tex]\boldsymbol{m\angle R, m\angle S, m\angle T}[/tex] are equal to [tex]\boldsymbol{60^{\circ},55^{\circ},65^{\circ}}[/tex] respectively.
According to angle sum property of a triangle, sum of all angles of a triangle is equal to [tex]\boldsymbol{180^{\circ}}[/tex]
Let [tex]m\angle R=x[/tex]
As [tex]m\angle T[/tex] is [tex]5^{\circ}[/tex] more than [tex]m\angle R[/tex],
[tex]m\angle T=5^{\circ}+m\angle R[/tex]
[tex]\boldsymbol{m\angle R=m\angle T-5^{\circ}}[/tex]
Also,
[tex]m\angle S[/tex] is [tex]10^{\circ}[/tex] less than [tex]m\angle T[/tex],
[tex]\boldsymbol{m\angle S=m\angle T-10^{\circ}}[/tex]
So,
[tex]\boldsymbol{m\angle R+m\angle S+m\angle T=180^{\circ}}[/tex]
[tex]m\angle T-5^{\circ}+m\angle T-10^{\circ}+m\angle T=180^{\circ}[/tex]
[tex]3m\angle T-5^{\circ}-10^{\circ}=180^{\circ}[/tex]
[tex]m\angle T=\frac{195^{\circ}}{3}[/tex]
[tex]\boldsymbol{=65^{\circ}}[/tex]
[tex]m\angle R=65^{\circ}-5^{\circ}[/tex]
[tex]\boldsymbol{=60^{\circ}}[/tex]
[tex]m\angle S=65^{\circ}-10^{\circ}[/tex]
[tex]\boldsymbol{=55^{\circ}}[/tex]
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Laura participated in a gymnastics competition. She got scores of 7.88, 9.42,
7.49 and 8.64. What is her total score?
A store buys 17 sweaters for $255 and sells them for $578. How much profit does the store make per sweater?
Answer:
$19 per sweater <3
After a 15% increase, a town has 115 people. What was the population before the increase?
Answer:
100 people
Step-by-step explanation:
Population Of People=115Percentagencrease=15%
The New Population corresponds to 115%
(That is 100+15)
We want to find the population that corresponds to 100% that is the original population.
Therefore Original Population;
[tex] \frac{100}{115}\times {115}{} [/tex]
[tex]100 \: people[/tex]
i need help with math please to solve the problem and explain asap thank you so much...
Answer:
99
Step-by-step explanation:
1, 3, 5,... 50th?
arithmetic sequence:
d=3-1=2, a1= 1, n= 50
an= a1 + d (n-1)
an= 1 + 2 (n-1)
a50= 1 + 2 (50-1)
a50= 99
A poll agency reports that 45% of teenagers aged 12-17 own smartphones. A random sample of 152 teenagers is drawn. Round your answers to four decimal places as needed. Part 1 out of 6 Find the mean The mean il ESSENEN IN
Answer:
Mean = 0.45
Standard deviation = 0.04035
Step-by-step explanation:
This is actually a very simple problem.
The question gives us the report that 45% of the teenagers in the age bracket own smartphones.
P = mean = 45%
Therefore the mean is 0.45.
I will go ahead to help you calculate the standard deviation.
√p(1-p)/n
n = 152
P = 0.45
√0.45(1-0.45)/152
= √0.45(0.55)/152
= √0.2475/152
= √ 0.001628
= 0.04035
Please help it's already late. Will mark brainliest for the first answer.
Answer:
check the first two and the last one
Step-by-step explanation:
you use multiplying/dividing and adding/subtraction to get the answer
10x+45x-13 = 11(5x+6)
55x-13 = 11(5x+6) combine like terms
55x-13 = 55x+66 distribute the 11 to the 5x and 6
-13 = 66 cancel out equal terms on both sides
the statement is false meaning there is equation has no solution
Answer:
check the first two and the last one
Step-by-step explanation:
Valerie had $1.87 in her bank at home. She adds $2.67 in change how much does she have now?
Answer: $4.54
1.87+2.67=4.54
I hope this is good enough:
A consignment of steel weighing 5 tonnes
is delivered to a factory ,how many tons
of steel are delivered?
Answer:
This is when solid particles stick to one another, and while this is an undesirable feature in many powder and particle processing operations, it is essential for the successful sintering of iron ore fines, coke and fluxes into a suitable blast furnace feed.
Step-by-step explanation:
There are 2.54 centimeters per inch. If a pencil is 4.5 inches long, what is its length in centimeters?
Please explain
Answer:
11.025
Step-by-step explanation:
you have to add 2.45, 4.5 times. Or you can just multiply 2.45 by 4.5.
Hope this helps you ;}
The art teacher has 48 boxes of crayons.
There are 64 crayons in each box. Which
is the best estimate of the number of
crayons the art teacher has?
Answer:
3072 Crayons
Step-by-step explanation:
Crayons = C
48C * 64C = 3072C
3072C = 3072 Crayons
-3[7+ 5)
What is the value of
Answer:
-36
Step-by-step explanation:
Step-by-step-explanation
The first thing you would do is multiply both numbers inside the parenthesis by -3.
You would get -21 + (-15) or you could just wrtie -21 - 15, whichever is easier for you.
Then you'd simply add both -21 and -15 together, and you get -36. :D
Please help :( I need your help. If you help you get points. If you get points your smart. So please help.
Answer:
6.3333
Step-by-step explanation:
Answer:
6.3333
Step-by-step explanation:
Which ordered pair is a solution to the system of inequalities?
y > 3x
y <2 +5
The ordered pair which is the solution of the given inequalities is (A) (1,5).
What are inequalities?An inequality in mathematics is a relation that compares two numbers or other mathematical expressions in an unequal way. The majority of the time, size comparisons between two numbers on the number line are made. A difference between two values indicates whether one is smaller, larger, or simply not equal to the other. If a and b are equal, then an is greater than b.So, to find the correct values we need to use the hit-and-trial method:
Then, taking (1, 5):
y > 3x5 > 3(1)5 > 3 (Satisfied)Similarly,
5 ≤ x + 55 ≤ 1 + 55 ≤ 6 (Satisfied)So, option (A) (1, 5) is correct.
Therefore, the ordered pair which is the solution of the given inequalities is (A) (1, 5).
Know more about inequalities here:
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Find the slope and y-intercept from the following graph of a linear equation.
Answer:
A
Step-by-step explanation:
The equation of line is y= -4x -23
What is slope- intercept form?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively.
The slope of the line is the ratio of the rise to the run, or the rise divided by the run, therefore the change in y coordinate with regard to the change in x coordinate may be expressed as follows. In the coordinate plane, it describes the slope of the line.
Given:
We can take the coordinates from the given graph as (0, 3) and (2, -5)
Now, the slope = (-5 - 3)/ (2 - 0)
slope= -8/ 2
slope= -4
Now, using the point- slope form
(y - [tex]y_1[/tex]) = m(x - [tex]x_1[/tex])
(y- (-3))= -4( x- (-5))
y+3 = -4(x+5)
y+ 3= -4x - 20
y= -4x -23
Hence, the equation of line is y= -4x -23.
Learn more about equation of line here:
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True False x-sqrt6 is a factor of x^4-36
Thirty-two is equivalent to twice the value of b and then increased by eight. What is the value of b?
Answer:
I think its eight
Step-by-step explanation:
8 x 2 = 16 + 8 = 32
Answer:
b= 24
Step-by-step explanation:
They want you to find half of 32 and then add 8.
32÷2= 16
16+8=24
can someone fill in the blanks for me I'm doing a vocab test on math so plz help thx brainliest awarded
Answer:
15 - Given a system of two equations, we can produce an equivalent system by replacing one equation by the sum of the two equations, or by replacing an equation by a multiple of itself.
16 - It tells us that two expressions mean the same thing, or represent the same number. An equation can contain variables and constants.
17 - Commutative Properties
Step-by-step explanation:
Answer:
i gotchu babe lol,
14.Associative Property
15. equivalent systems
16. equation
17.Commutative Property
Step-by-step explanation:
i love you so much, i hope this helps you babe.
HELP!! Need the answer fast!
Answer:
84
Step-by-step explanation:
Answer:
x = 174 °
Step-by-step explanation:
All quadrilaterals have an interior angle sum of 360°. Therefore the 4 interior angles added together should equal 360°. The question already gave us three of the four angles.
74 + 66 + 46 + x = 360
186 + x = 360
x = 174
Hassan's soccer team is trying to raise $688 to travel to a tournament in Florida, so they decided to host a pancake breakfast. Each person must pay $43 for the breakfast. How many people need to attend their breakfast in order to raise $688?
Answer:
5 people
Step-by-step explanation:
john sort his 200 buttons into 4 groups.Each group has the same numbers of buttons .He gives the buttons in one group to Markie.Which equation can be used to find n,the number of buttons that john has now.n÷4=200. or 200-50=n or 200÷4=n or n-50=200
Answer:
200-50+n
Step-by-step explanation:
PLEASEE HELPPPP PLEASEE thiss IS FOR MY FRIEND I BEGG YOUUU PLEASEEE
Answer:
Step-by-step explanation:
Why are you asking? Why isn't your friend?
The diagram assumes that the angle on the lower left of the triangle is a right angle. If it is not, then I don't think there is a way that this can be solved.
Tan(A) = opposite / adjacent
opposite = 7
Adjacent = 4
Tan(A) = 7/4 = 1.75
A = inverseTan (1.75)
A = 60.60 degrees
Arianna solved a fraction division problem using the rule “multiply by the reciprocal.” Her work is shown below. Two-thirds divided by StartFraction 4 Over 5 EndFraction. Two-thirds times StartFraction 4 Over 5 EndFraction = StartFraction 8 Over 15 EndFraction Which is the most accurate description of Arianna’s work? Arianna solved the problem correctly. Arianna multiplied the dividend by the divisor instead of finding the reciprocal. Arianna multiplied the denominators instead of finding a common denominator. Arianna multiplied with the reciprocal of the dividend instead of the reciprocal of the divisor.
Arianna solved a fraction division problem using the rule "multiply by the reciprocal." Her work is shown below. Two-thirds divided by StartFraction 4 Over 5 EndFraction. Two-thirds times StartFraction 4 Over 5 EndFraction = StartFraction 8 Over 15 EndFraction Which is the most accurate description of Arianna's work? Arianna solved the problem correctly. Arianna multiplied the dividend by the divisor instead of finding the reciprocal. Arianna multiplied the denominators instead of finding a common denominator. Arianna multiplied with the reciprocal of the dividend instead of the reciprocal of the divisor.
Answer
4.0/5
47
Arianna multiplied the dividend by the divisor instead of finding the reciprocal.
The fraction division problem Arianna solved is
Adrianna's next step is
We are supposed to choose from the options the most accurate description of Arianna's work.
The mistake Arianna committed is that, she did not reciprocate the before multiplying.
Therefore the correct answer is:
Arianna multiplied the dividend by the divisor instead of finding the reciprocal.
Answer: B Arianna multiplied the dividend by the divisor instead of finding the reciprocal.
Step-by-step explanation: every website i went on said B
Danielle needs to pay $50.00 to attend her college's semi-formal. When she works in the dining hall, she makes $20.00 per day plus $6.00 for every additional hour she works. If she wants to earn at least $50.00 by Friday, she thinks that she only needs to work 3 additional hours but her friend Jurrae thinks that she needs to work 5. Explain if you agree with Jurrae and Danielle. Use details to support your answer.
Answer:Her friend is right Danielle needs to work for 5 hours
Step-by-step explanation:
hope this help
Coach Matta ran 3 laps in 180 seconds. Which of the following is an equivalent rate of running?
2 laps in 130 seconds
5 laps in 215 seconds
1 lap in 60 seconds
6 laps in 130 seconds
Answer:
1 lap in 60 seconds
Step-by-step explanation:
This is the answer because:
1) Think of it as ratios or fractions
Ratio: 3:180
2) Next, we have to find something equivalent. Since 3 can only be multiplied by one or itself, we have to dived 3 by 3.
3) 3 divided by 3 is 1
2) 180 divided by 3 is 60
4) This equals to 1:60
Therefore, the answer is 1 lap in 60 seconds
Hope this helps!
derivation of f(x) = x^4 - 8x^2 + 3