Answer:
twice a number n is 2n
plus 3 is + 3
→ twice a number n plus 3 is 2n + 3.
Step-by-step explanation:
What is the slope of the line that passes through the points (8, 4) and (20, –4)?
Write
your answer in simplest form.
Answer:
formula is y2-y1 ÷ x2-x1
- 4 - 4 = -8
20 - 8 = 12 simplify and we get
[tex] - \frac{ 2}{3} [/tex]
Answer: [tex]-\frac{2}{3}[/tex]
Step-by-step explanation:
-4-4=-8
20-8=12 [tex]\frac{-8}{12}[/tex]
If two cans of shrimps cost $14, at this unit rate what is the cost of 9 cans of shrimps?
Answer:
63 shrimps
Step-by-step explanation:
14÷2=7
the cost of 1 shrimp
7×9=63
the cost of 9 shrimps
HELP !! 20 POINTS !! Identify if the relations are functions or not.
Answer:
This is not a function, because the output is paired with more than one input. In other words, 8 is paired with both 4 and 3, even though output numbers are only supposed to have one counterpart.
Step-by-step explanation:
Hope this makes sense :)
Use the slope formula to find the slope of the line through the pair of points (−2,6) and (−3,−4).
Answer:
10
Step-by-step explanation:
Slope Formula: [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
=[tex]\frac{-4-6}{-3-(-2)}[/tex]
=[tex]\frac{-10}{-1}[/tex] = 10
Hope this helps!
help please. thank you very much
Answer: Offer B because it will cost less.
Step-by-step explanation: Hope this helps :)
find the inverse of -3y+5x=18
Answer:
-3x +5y = 18
Step-by-step explanation:
The inverse relation is found by swapping x and y.
HELP ASAP I WILL GIVE BRAINLIEST!!
Consider the function F(x)= x³ +½x² −2x +3. Use calc and algebra to find any and all stationary points on the graph of the function.Precalc need help ASAP
Solution:
the above function has more than one root or more than one solution. The derivative of the function represents the slope of the tangent line to the curve
F(x)= x³ +½x² −2x +3, F'(x) = 3(x3-1)+(1/2)(2)(x2-1)-2(x1-1)+0
F'(x)=3x2+x-2 is the slope of the tangent line
setting the slope =0 and solving the quadratic equations, you find all the
critical points of interest
3x2+x-2=0, solve by factoring (3x-2)(x+1)=0, then 3x-2=0, x= 2/3
and x+1=0, x=-1 substituting these values of x in the original equation
you get the corresponding values of F(x) such that;
F(x)= x³ +½x² −2x +3, F(x)=(2/3)3+1/2(2/3)2-2(2/3)+3
= 8/27+4/18-4/3+3 = 8/27+2/9-4/3+3/1 = 59/27 and the first point is
(2/3, 59/27)
F(x)= x³ +½x² −2x +3, F(x)=(-1)3+1/2(-1)2-2(-1)+3
= -1+1/2+2+3 = 9/2 and the 2nd point is ( -1, 9/2)
these two points represents points where the slope of the tangent line to the curve is 0 and could be either maximum or minimum points
You can also find the y intercepts where x = 0 F(x)= x³ +½x² −2x +3, setting x = 0, y= F(x)=3 and the point ( 0,3) is a y intercept setting y = 0, then x intercepts can be found upon solving the equation x³ +½x² −2x +3 =0
Shade 0.25 of the design. Write a fraction in simplest fotm to represent the shaded part of the design
[tex]\\ \sf\longmapsto 0.25[/tex]
Remove decimal[tex]\\ \sf\longmapsto \dfrac{25}{100}[/tex]
[tex]\\ \sf\longmapsto \dfrac{5}{20}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{4}[/tex]
Answer:
[tex] \frac{1}{4} [/tex]
Step-by-step explanation:
Hey there,
[tex]0.25 \\ \\ = \frac{25}{100} \\ \\ = \frac{25 \div 25}{100 \div 25} \\ \\ = \frac{1}{4} [/tex]
Hope this helps you.
Let me know if you have any other questions:-):-)
(8) Andre sometimes mows lawns on the weekend to make extra money. Two weeks ago, he mowed a neighbor’s lawn for 12 hours and earned $10. Last week, he mowed his uncle’s lawn for 32 hours and earned $30. This week, he mowed the lawn of a community center for 2 hours and earned $30.Which jobs paid better than others? Explain your reasoning.
Sorry I need help with this pls >> it math
Answer:
1.(2,4)
2.(-4,2)
3.(-2,8)
2 ( -2 ) -8
3 ( -3 ) -18
5 ( -1 ) …
Ayudaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :(
Answer:
2 ( -2 ) -8 = -12
3 ( -3 ) -18 = -27
Step-by-step explanation:
Let y=r(x) be continuous and differentiable. Assume r'(x)=0 r′(x)=0 at x=ax=a.
If r'(x)<0 before x=a and r'(x)>0 after x=a
what must be true about r(a)?r(a)?
Choice 1: r(a) is a maximum value
Choice 2: r(a) is a minimum value
Choice 3: cannot determine based on this information
Answer:
am in callege i need points really much
Step-by-step explanation:
Let 0 be an angle in quadrant 3 such that cos0=-5/13.
Find the exact values of csc0 and tan0
Answer:
see explanation
Step-by-step explanation:
Given
cosθ = - [tex]\frac{5}{13}[/tex]
This is a 5- 12- 13 right triangle
with adjacent = 5, opposite = 12 and hypotenuse = 13
In quadrant 3
sinθ < 0 and tanθ > 0 , then
sinθ = [tex]\frac{opposite}{hypotenuse}[/tex] = - [tex]\frac{12}{13}[/tex] and
cscθ = [tex]\frac{1}{sin0}[/tex] = [tex]\frac{1}{-\frac{12}{13} }[/tex] = - [tex]\frac{13}{12}[/tex]
then
tanθ = [tex]\frac{sin0}{cos0}[/tex] = [tex]\frac{-\frac{12}{13} }{-\frac{5}{13} }[/tex] = - [tex]\frac{12}{13}[/tex] × - [tex]\frac{13}{5}[/tex] = [tex]\frac{12}{5}[/tex]
find the exact value of
Answer:
value of what?
Step-by-step explanation:
I don't see the question
Which expression is equivalent to 4/5x + 1 1/5
Answer:
Step-by-step explanation:
the answer is 2/5 (2x + 3) i hope it helps
read bot stop answering my question no link no bot fast but wrong
Answer:
Step-by-step explanation:
First Sheet, First Question
1) D
2) D
3) B
4) D
First Sheet, Second Question
a) SQR 16
b) 7/8, sqr -42
c) 3.692, 4 pie, sqr 1/4
Brian went to the bank and withdrew $250 from his checking account.
The receipt that printed stated that Brian has $324 left in his account.
How much money did Brian have in his checking account before he
withdrew money? Create an equation to represent the situation. Make
sure to identify and label your variable. Solve for the variable and
describe your answer. Show your work and prove your solution to be
correct.
Answer: $574
Step-by-step explanation:
574 - 250 = 324
Calculate the population variance of a population with data of {-3, - 5, 8, 11, 13}.
341/5
7.386
54.56
68.2
Answer:
Step-by-step explanation:
First find the airithmatic mean
(-3-5+8+11+13)/5= 4.8
[tex]\frac{(-3-4.8)^2+(-5-4.8)^2+(8-4.8)^2+(11-4.8)^2+(13-4.8)^2}{5}= 54.56[/tex]
The variance of this population data set is 69.45.
How to find the variance of the set of data?To find the variance of the set of data we first need to calculate the mean of the set.
mean = sum of each element / number of elements
mean = (-3 -5 + 8 + 11 + 13)/5 = 3.8
Now, using the formula for variance
s² = (X - mean)²/ (n- 1)
s² = (-3 - 3.8)² + (-5 - 3.8)² + (8 - 3.8)² + (11 - 3.8)² + (13 - 3.8)² / (5- 1)
s² = 46.24 + 77.44 + 17.64 + 51.84 + 84.64 / 4
s² = 277.8/4
s² = 69.45
Hence, the variance of the data is 69.45.
Learn more about variance here:
https://brainly.com/question/18827081
#SPJ2
Location of point on number line after 1/10 before 2/10
Answer:
3/20
Step-by-step explanation:
1/10=2/20
2/10=4/20
Answer:
hddhbd b v c c GG ffdrgbmnkhu
HELPPPPPPPP!!! ASAP!!!
What is wrong with the following equation of a circle? (x - 5)^2 +(y +2)^2 =-36
Answer:
i think its (5, -18) i'm pretty sure
Step-by-step explanation:
9514 1404 393
Answer:
the number on the right needs to be positive
Step-by-step explanation:
The given equation describes a circle with an imaginary radius.
The number on the right is the square of the radius. We expect the radius to be a real number, so its square will be positive.
Add.
(−x^4+5x^3−x^2+5x)+(−8x^4+x^3+2x^2+2)
Enter your answer, in standard form, in the box.
Answer:
-9x^4+6x^3+x^2+5x+2
Step-by-step explanation:
what is 0.08 as a percent.
Answer:
8%
Step-by-step explanation:
u have to multiply the number with 100
0.08 * 100
8%
A right triangle has side lengths 7, 24, and 25 as shown below.
Use these lengths to find tanA, sinA, and cosA.
9514 1404 393
Answer:
tan(A) = 7/24sin(A) = 7/25cos(A) = 24/25Step-by-step explanation:
The mnemonic SOH CAH TOA can help you remember the trig ratios:
Sin = Opposite/Hypotenuse
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent
With respect to angle A, the sides are Adjacent = 24; Opposite = 7, Hypotenuse = 25. Then the desired trig ratios are ...
tan(A) = 7/24
sin(A) = 7/25
cos(A) = 24/25
2. A scuba diver dove 48 feet in 4 minutes.
What integer represents his change in depth
for each minute?
A. 52 feet per minute
B. 44 feet per minute
C. -12 feet
per
minute
D. -48 feet per minute
Answer:
C. -12 feet per minute
Step-by-step explanation:
This question is really just asking for the slope of this situation. So the best way to find the answer is to find the change in y over the change in x. In this case, y is the depth and x is the time. So, it would be -48/4 because the diver went down 48 feet when 4 minutes passed. Then, simply divide, -48/4, which equals -12 feet/1 minute.
Angie has 12 3/4 yards of fabric to make Halloween costumes. Each fabric costume requires 7/8 yards of fabric. How many costumes can Auntie make?
Since Angie has 12 3/4 yards of fabric and all and each costume requires 7/8 yards, you can divide 12 3/4 by 7/8.
12 3/4 ÷ 7/8
= 51/4 ÷ 7/8
= 51/4 • 8/7 (remember that dividing by a fraction is the same thing as multiplying by it’s reciprocal)
= 51/1 • 2/7 (after simplifying)
= 102/7
= 14 4/7
Angie can make 14 costumes. She cannot make the 15th one because she’ll run short of fabric.
Plot each rational number on the number line.remember that fractions are part of a whole so a fraction like 1/2 will go halfway between 0 and 1.Also remember that a number like 1 3/4 is read as “one and three-fourths”
Answer:
the ancwer is -2 -1 0 1 2
Step-by-step explanation:
Yes
5a + 7b - 12a + 6c - 13b - 22a + 53c
Answer:
-29a-6b+59c
Step-by-step explanation:
14w+3p=70.50
10w+7p=62.50
Which statements are true in explaining why it makes sense that the solution of this system is also a solution to 4w+(−4p)=8.00? Select all that apply.
Because 10w+7p is equal to 62.50, subtracting 10w+7p from the left side of 14w+3p=70.50 and subtracting 62.50 from its right side keep the two sides equal.
The equation 4w+(−4p)=8.00 is the result of adding the two equations in the system and then dividing the result by 6.
The equation 4w+(−4p)=8.00 is the result of subtracting the second equation in the system from the first equation.
The equation 4w+(−4p)=8.00 represents the difference between Mai's sales and Tyler's sales, or the result of subtracting Tyler's sales from Mai's.
The left side of the equation 4w+(−4p)=8.00 shows the difference in terms of the items sold. The right side shows the difference in dollars. The cost per wreath, w, and the cost per potted plant, p, haven't changed.
Answer:
dang this stuff is hard
Step-by-step explanation:
Calculate the cost of 1,000 gallons of gasoline if it costs $2.35 per gallon The cost is $ (Type an integer or a demical
Answer:
$2350
Step-by-step explanation:
1000 × $2.35 = $2350
Subtract.
6 2/3 − 4 4/9
2 4/9
2 2/9
2 6/9
2 10/9
Answer:
2 2/9
Step-by-step explanation:
