Answers
Answer:
-3 f
ithink
Step-by-step explanation:
We are told that x is -3. Based on the side conditions of this piecewise function, we evaluate the top portion only.
f(-3) = -1/2(-3) + 4
Take it from here.
Related Questions
After birth, a baby's weight increased at a steady rate for several weeks.
A linear model of this situation contains the values (1, 7.3) and (9, 9.7), where x represents the number of weeks, and y represents the baby's weight, in pounds.
What was the baby's weight at birth?
A.
8 pounds
B.
7.3 pounds
C.
0.3 of a pound
D.
7 pounds
Answers
Answer:
c
Step-by-step explanation:
i really dont know pls help PAHAHA
The baby's weight at the birth of the baby was 7 pounds.
What is a mathematical function, equation and expression?function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Given is that a linear model of this situation contains the values (1, 7.3) and (9, 9.7), where [x] represents the number of weeks, and [y] represents the baby's weight, in pounds.
Assume the equation of the line in slope - intercept form is -
y = mx + c
Now -
m = (9.7 - 7.3)/(9 - 1)
m = 2.4/8
m = 0.3
The equation will be -
y = 0.3x + c
For the point - (1, 7.3), we can write -
7.3 = 0.3 x 1 + c
c = 7.3 - 0.3
c = 7
Therefore, the baby's weight at the birth of the baby was 7 pounds.
To solve more questions on functions, expressions and polynomials, visit the link below -
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have of a certain number is 3more than the number
Answers
3(y+1) for y=2
A. 6
B. 9
C. 7
D. 8
Answers
Answer:
B
Step-by-step explanation:
3(2+1)
3(3)
9
that how i solved it
3 ( 2 + 1 )
3 ( 3 )
9
the answer is b.
Solve the equation 6x2 – 8x + 1 = x + 4 by writing a linear-quadratic system and solving using the intersection feature of a graphing calculator. Order your answers from least to greatest, and round to the nearest hundredth.
Answers
Answer:
-0.28, 1.78
Step-by-step explanation:
Plug it into a graphing calculator and see you have -0.281 as a intersection as well as 1.781. Then you round to the nearest hundred and get -0.28 and 1.78.
How can we multiply fractions
Answers
Answer:
There are three simple steps...
Step-by-step explanation:
Step 1: Multiply the numerators from each fraction by each other (the numbers on top). The result is the numerator of the answer.
Step 2: Multiply the denominators of each fraction by each other (the numbers on the bottom).
Step 3: Simplify or reduce the answer.
What is the probability that a coin tossed in the air will land heads up? 25% 50% 75% 100%
Answers
Answer:
50%
Step-by-step explanation:
Answer: 50%
Step-by-step explanation: the normal probability is 1/2 sooo it translates to 50/100 which is 50%
if you answer correctly ill give brainliest
Answers
explanation: hehehehehe
joe wants to purchase a new pair of basketball shoes that are on sale at two different stores. store a has the sale at 20% off. the original price on the shoes is $85.95 and has a sales tax of 8.7%. store b has the shoes on sale at 25% off the original price on the shoes is $93.95 and has a sales tax of 8.5%
Answers
Answer:
What is the question?
Step-by-step explanation:
Find the x-intercept of each line defined below and compare their values.
Answers
x intercept of line b is (1,0)
The x intercept of line A is (-6, 0) and x intercept of line B is (3, 0)
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
Equation of line A
y=-2/3x-4
When y=0
0=-2/3x-4
4=-2/3x
-6=x
So the x intercept for line A is -6.
Let us find equation of line B by using table
Slope = -1
Now let us find y intercept
2=-1(-1)+b
b=3
So equation is y=-x+3
Now let us find the x intercept
Put y=0
0=-x+3
x=3
(3, 0) is x intercept of line B
Hence, the x intercept of line A is (-6, 0) and x intercept of line B is (3, 0)
To learn more on slope of line click:
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Find the y-intercept, The equation of the x of symmetry and the x-coordinate of the vertex for 12.
Answers
Answer:
0, x=0, (0,0)
Step-by-step explanation:
f(x) =4x²
y-intercept is at (0,0) because there is no term with no variable
axis of symetry is x=0, because is the y-axis
x-coordinate of the vertex is 0 because the vertex is at (0,0)
Answer:
axis of symmetry-x=0
y-int-(0,0)
vertex-(0,0)
Step-by-step explanation:
5. A boy owns 2 pairs of pants, 8 shirts, 6 ties, and 7 jackets. How many different outfits can he wear to school if he must wear one of each item?
He can wear _________ different outfits.
Answers
Answer:
672
Step-by-step explanation:
d+g/h for d=35, g=19 and h=6
A. 9
B. 2.7
C. 7.3
D. 8
Answers
Answer:
PLZ MARK ME AS BRAINLIST
Step-by-step explanation:
THE CORRECT ANSWER IS 9...
HOPE IT HELPS...
DNDNDNDN
SNSNDNDN
SBSNDNXN D DXBNXF D XNXJXNXN
SNDNXNDBDNZJXNXDNSKSKDN
DNDNDN
NDNDSNSNSNSND
SNDNDNDN
The original price of a shirt was 20$. It decreased to 15$. what is the percent decrease of thee price of this shirt ?
Answers
help me plz i really need help
Answers
Answer:
I think the answer is C it may not be right but I think it is
1. The sum of 6 and the quotient of a number and 4 is 10.
Answers
Step-by-step explanation:
20÷4=20/4=5 is the quotient I'm pretty sure
Answer:
34 Sorry if im kinda late
Step-by-step explanation
The equation is 6+x/4=10. now we figure out what x=? there are a lot of ways to figure out the answer this is what im gonna do first figure out what divided by 4 equals 10. multiply 10 times 4 you get 40 which means 40 divided by 4 equals 10 now subtract 6 from 40 and you get 34.
Please mark brainliest.
at 6:00 PM it’s 24°F at midnight the temperature was 636°F lower than Apple what will the temperature at midnight
Answers
Answer:
A)12 F.
Step-by-step explanation:
The difference of 9 and three times a number is that number increased by 5. Find the number. just give me the equation
Answers
Answer:
9-3n=n+5
Step-by-step explanation:
n= the number
Convert (A5D.F)¹⁶ to base 2
Answers
The radix for the number to convert is 16 so it's hexadecimal. There's, I believe a typo as there no "." in base 16. Base 2 is binary and so the answer would be [tex]1010010111011111[/tex]
Help ASAP ASAP number 6
Answers
I need help plz
thank you.
Answers
Answer:
hxdjgcfmv,hjb.kn
Step-by-step explanation:
hrzdxjcgfmv,guvmcdcfvmtfbudufuv,gh
) Use a generating function for modeling the number of different election outcomes in an election for class president if 25 students are voting among four candidates. Which coefficient do we want
Answers
Answer:
The answer is "[tex]x^{25}[/tex]"
Step-by-step explanation:
In four candidates, student participants are voting.
For design the range of votes, it must employ a dividend growth.
Total students = 25
Total choices to vote = 4
The role generation is: [tex]G(x) = (1 + x+x^2 + ....+ x^{25})^4[/tex]
In order to obtain the various results, they need to analyze the term coefficient [tex]x^{25}[/tex].
A snowplow has maximum speed of 45 miles per hour on a dry highway. Its maximum speed decreases by 1.6 miles per hour for every inch of snow on the highway. According to this model, at what snow depth will the snow plow be unable to move?
Answers
Answer:
28.125
Step-by-step explanation:
If it is going 45mph and every hour it decreases 1.6mph per inch of snow added. so 45 divided by 1.6 is 28.125.
How can you rewrite the problem so that the divisor is a whole number?
0.21 divided by 17.66
Answers
Answer: 21 divided by 1766
Step-by-step explanation:
just try to remove the decimal points which mean 0.21 to 21 and 17.66 to 1766
The speed of the current in a creek is 2 mph. A person can kayak 9 mi upstream in the same time that it takes him to kayak 13 mi downstream. What is the speed of the
person's kayak in still water?
Answers
Let s be the speed of the person's kayak in still water.
Given, speed of current = 2 mph
Upstream distance = 9 miles
Speed of the person upstream = s-2
Time traveled upstream = 9/s-2
Downstream distance = 13 miles
Speed of the person downstream = s+2
Time traveled downstream = 13/s+2
Given,
9/s-2 = 13/s+2
Cross-multiplying,
9*(s+2) = 13*(s-2)
9s + 18 = 13s - 26
Grouping like terms together,
13s-9s = 26+18
4s = 44
s = 11 mph
Speed of person's kayak in still water = 11 mph
URGENT PLZ HELLLP
Triangles ABC and DEF are similar. The lengths of the sides of ABC are 56, 64, and 72. The length of the largest side of DEF is 252. What is the length of the smallest side of DEF?
Answers
Answer:
abcdefghijklmnopqrstuvwxyz now i know my abc's next time wont you sing with me!!!!!!
Step-by-step explanation:
Is the product of opposites always 1
Answers
Answer:
yes
Step-by-step explanation:
hope it helps!
Answer:
Yes, the product of a number and its opposite is always 1, and the opposite of a negative number is always a positive number.
What decimal is equivalent to 21% ?
HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Based on historical data, your manager believes that 30% of the company's orders come from first-time customers. A random sample of 64 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is greater than than 0.2?
Answers
Answer:
0.9594
Step-by-step explanation:
Given that:
Sample size (n) = 64
p = 30% = 0.3 ; 1 - p = 0.7
Probability that sample proportion is greater than 0.2
Mean (m) = n*p = 64 * 0.3 = 19.2
Standard deviation (s) = √n*p*(1-p) = √(19.2*0.7)= 3.67
0.2 of 64 = 12.8
Z > [(x - m) / s]
Z > (12.8 - 19.2) / 3.67
Z > (-6.4 /3.67)
Z > - 1.7438
= 0.9594
If a cake recipe requires 3:2 by weight ratio of sugar and flour, how much sugar do you need to make a 10 pound cake?
Answers
Answer:
6 pounds of sugarStep-by-step explanation:
Given the ratio of sugar and flour by weight expressed by the ratio 3:2
Total ratio = 3+2 = 5
Ratio of sugar = 3
If we are to make 10pounds cake, the amount of sugar needed will be expressed as;
Amount of sugar = Ratio of sugar/Total sugar *weight of cake
Amount of sugar = 3/5 * 10
Amount of sugar = 3 * 2
Amount of sugar = 6pounds
Hence 6pounds of sugar is needed to make the cake
The endpoints of a side of rectangle ABCD in the coordinate plane are at A (3,9) and
B(5, 1). Find the equation of the line that contains the given segment.
The line segment is CD and point C is at (9,2).
The equation is
Answers
Answer:
y = - 4x + 38
Step-by-step explanation:
A(3, 9)
B(5, 1)
[tex]m_{AB}[/tex] = [tex]\frac{1-9}{5-3}[/tex] = - 4
CD║AB
C(9, 2)
y - 2 = - 4(x - 9)
y = - 4x + 38