If f(x) = - 4x + 5 then what is f(-2)?
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This is my work
Related Questions
Determine whether the polygons with the given vertices are similar. Use transformations to explain your reasoning.
First Polygon - A(-4, 0), B(-4, -2), C(-2, -2)
Second Polygon - D(4, 6), E(4, 2), F(8, 2)
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A biology class examined some flowers in a local meadow. The students saw 88 perennial
flowers and 12 annual flowers. What percentage of the flowers were perennials?
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Answer:
88%
Step-by-step explanation:
Can I get help wit my second question
Answers
What is the measure of
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Answer:
2nd one
<qup=180-45=155(linear pair)
How many ounces are equal to 7 pounds?
Answer: 112 ounces
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Answer:
Why did you7 ask a question then anwser it yourself
Step-by-step explanation:
If 3x - 7 = 2, then x equals?
Answers
Answer:
rjogir
grggreijgojrejow
g
Step-by-step explanation:
Answer:
3x - 7 = 2
3x = 2 + 7
3x = 9
x =9/3
x = 3
x equals 3
If 39 is 10% of an number what is the number? How did you find your answer?
Answers
Answer:
390
Step-by-step explanation:
10% = 39
39 x 10 = 390
390 = 100%
Answer:
x=390
Step-by-step explanation:
x of 10% equal to 39
x10/100 = 39
x10 =3900
x = 3900/10
= 390
Simplify the following expression. 95 + 5[14 - (3 + 8)] A. 140 B. 190 C. 220 D. 110
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Answer:
The answer is D. 110
Step-by-step explanation:
You add 8 and 3 and get 11 first because in parentheses, and then you subtract that by 14, which will give you 3. Then you multiply 3 times 5 to get 15 and add that to 95 to get your answer. Hope this helps!
Answer:
The answer is D. 110
Step-by-step explanation:
In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Joyce has scored 90, 93, and 85 on the first three. What range of scores on the fourth test will give Joyce a C for the semester (an average between 70 and 79, inclusive)? Assume that all test scores have a non-negative value.
Express your answer in interval notation.
HELP ASAP BRAINLEST AND THANKS
Answers
Answer:
[12,48]
Step-by-step explanation:
We will start by calculating the score she needs to get a 70 in the class
We will let x equal the fourth test
[tex]\frac{90+93+85+x}{4} =70[/tex]
This isn't hard to solve and we will do so by multiplying 4 by both sides and subtracting 268 (90+93+85)
This means that x= 12
We will then use the same formula but set it equal to 79
[tex]\frac{90+93+85+x}{4} =79[/tex]
We solve x in the exact same way and get x=48
our final answer is now [12,48]
please HELP MEEEEEE .A store owner wants to make a candy that sells for $1 per pound.he has 50 lb of sugar candies that cost $1.20 per pound.how many pounds of gummy candies that cost 80 cents per pound should he add.
Answers
Answer:
50 pounds
Step-by-step explanation:
we can use the equation 60+80/100x=1(x+50)
we get 80/100 x because the gummy candies are 80 cents or 80/100x
we get 60 from multiplying 1.20$ x 50 = 60
solve:
60+80/100x = x+50
60 = x-80/100x+50
60-50 = 20/100x
10 = 20/100x
x= 10 x 100/20 = 10x5= 50 pounds
Using proportions, it is found that he should add 50 pounds of gummy candies that cost 80 cents per pound.
What is a proportion?A proportion is a fraction of a total amount.
This problem is organized as follows:
There is a total of 50 + x pounds.Of those, 50 cost $1.2 per pound.x cost $0.8 per pound.The selling price is of $1.Hence:
[tex]\frac{50}{50 + x}1.2 + \frac{x}{50+x}0.8 = 1[/tex]
[tex]\frac{60 + 0.8x}{50 + x} = 1[/tex]
[tex]50 + x = 60 + 0.8x[/tex]
[tex]0.2x = 10[/tex]
[tex]x = \frac{10}{0.2}[/tex]
[tex]x = 50[/tex]
He should add 50 pounds of gummy candies that cost 80 cents per pound.
More can be learned about proportions at https://brainly.com/question/24372153
PLEASE HELP!!! I NEED TO TURN THI IN SOON !!!
Question and instructions in the image below!!!
Will mark brainliest if correct!!!
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Answer:
Im pretty sure its the 3rd one
Step-by-step explanation:
I did this a while ago
*WILL MARK BRAINLIEST* 15 POINTS
Match each word to its correct definition:
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Answer:
2
3
1
4
Step-by-step explanation:
Angles that add up to 90 are Complementary angles.
Two angles that have a common vertex and a common side but do not overlap are Adjacent angles.
Angles that are opposite each other and have the same measurment are vertical angles.
Angles that add up to 180 are Supplementary angles.
Hope this helps!! :D
Complementary angles- angles add up to 90
Adjacent -two angles that have a common vertex
Vertical- angles that are opposite of each other
What is the value of x?
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Answer:
x = 30 degrees
Step-by-step explanation:
Okay so we start by noticing that the two pointed out vertices = 180 degrees. So we have the following equation.
(x + 12) + (3x + 48) = 180
If you combine them you get:
4x + 60 = 180
Subtract 60 from both sides..
4x = 120
Divide both sides by 4..
x = 30
And there's your answer!
What is the coefficient of the second term in the expression 2n+7m+6
Answers
Answer:
the answer is seven.
Step-by-step explanation:
The coefficient of the second term will be equal to 7.
What is an expression?
The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
A coefficient in mathematics is a multiplicative factor in some term of a polynomial, series, or expression.
Given that the expression is 2n+7m+6. Here the first term is 2n second term is 7m and the third term is 6. The coefficient of the second term will be 7.
To know more about an expression follow
https://brainly.com/question/29133440
#SPJ2
Help if you would like brainliest
Answers
2. If it’s 20% off you save 13.90 so 69.50- 13.90 is $55.60
Expand and simplify the following expressions : 1.(a-5)(a-7)
2.(x-2y)(3x+4)
3.(4x+3y)(4x-3y)
4.(6x-7y)(6x+7y)
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Answer:
1. (a-5)(a-7)
a2 - 12a + 35
2. (x-2y)(3x+4)
3x2 +4x - 6xy - 8y
3. (4x+3y)(4x-3y)
16x2 - 9y2
4. (6x-7y)(6x+7y)
36x2 - 49y2
(the twos after the letters means squared)
:)
The expression is equivalent to which integer? 2(-57 divided by 3) + 20^2 - 5
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Answer:
The answer is 357
Step-by-step explanation:
If three apples cost $6, how much does one apple cost? *
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Answer:
2 dollars
Step-by-step explanation:
-3x^3 (3x^4 - 5x^2-4) *
Answers
Answer: hanhjc,
Step-by-step explanation: bhjaCH
−14.4=−0.6p
I’m bisexual
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nice :) good for u, wish i could just say that straight up lol
Given the function, f(x)=10x-3,
what is the value of the function when x=-1/2
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f(-1/2)=10(-1/2)-3
f(-1/2)=(-5)-3
f(-1/2)=-8
n divide by 1.6=5
Help
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Answer:
3.125
Step-by-step explanation:
You take 5 and divide it by 1.6 to get you answer. I hope this helps
5m+22-15n need answer
Answers
Answer:5m+22-15n
Step-by-step explanation:
A shop sells pairs of trainers for £48 each.
They make a percentage profit of 100% on each pair.
What was the cost of each pair of trainers to the shop?
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Answer:
£24
Step-by-step explanation:
100% profit means they sold them for double the price and got back the original price of the product and the original price as profit so -
48 / 2 =£24
I hope this helps :)
Solve the equation with a simplified fraction: 1/7 + 3/7 =
Answers
Answer:
4/7
Step-by-step explanation:
1 +3 = 4
The denominator stays the same..
if you want a better explanation let me know.
Find 3 ratios that are equivalent to the given ratio.
12:15
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Answer:
4:5 24:30 36:45
Step-by-step explanation:
what is the value of 2/4
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Answer:
0.5
Step-by-step explanation:
hope this helps
Oliver saves 10% of his weekly earnings for living expenses. He usually makes $520 each week. This
week he made 10% more. Oliver incorrectly claims that he has $520 left for spending money this
week. Calculate the amount of spending money Oliver has left for this week. What error did Oliver
likely make?
Oliver has $
left for spending money this week.
Answers
Answer: Oliver's living expenses- 520(.1)=$52
Step-by-step explanation:
Please help me? I’ll give brainliest
Answers
Answer:
left 4 up one because the coordinates are -4 , 1
Answer:
the first one (-4, 1)
Step-by-step explanation:
HALPPPPDNEISIXJVHRSIZJJHRSUXJGHFEHWHSHCVRHHEHSHXCHFUDJ HAHAHAHAHHAHAAHAHAAHHA LOL
Answers
Answer:
&T *OA*&
Step-by-step explanation: