Answer:
a = - 6, b = 13
Step-by-step explanation:
Given f(1) = 7 , that is f(x) = 7 when x = 1
f(3) = - 5 , that is f(x) = - 5 when x = 3
Substitute these values into f(x) = ax + b
a + b = 7 → (1)
3a + b = - 5 → (2)
Subtract (1) from (2) term by term to eliminate b
(3a - a) + (b - b) = - 5 - 7
2a = - 12 ( divide both sides by 2 )
a = - 6
Substitute a = - 6 into either of the 2 equations and solve for b
Substituting into (1)
- 6 + b = 7 ( add 6 to both sides )
b = 13
In February Liliana spent 35 hours watching Netflix. In march she only spent 18 hours watching. What was the percent decrease in the amount of time she spent watching?
Is the expression
3/4a (16b + 24) equivalent to 12ab + 18a?
SHOW YOUR WORK
Answer:
Yes they are equivalent.
Step-by-step explanation:
since 16 times 3/4 is 12 and a times b is ab. Put those together and you get 12ab. Since 3/4 of 24 is 18 and the variable is a, it is 18a. Hope this helped.
Find the theoretical probability of rolling a number cube labeled 1-12 and it landing on 7.
Answer: 1/12 or 8.3%
Step-by-step explanation:
if the cube has 12 sides and only one (7) then there is a 1 in 12 chance it will land on that number or 8.3%
PLEASE help, im trying to bring my grade up for this class.
Answer:
Yes, Nan pays $25 more
Step-by-step explanation:
144 hours /24 hours per day = 6 days exactly
$50 + (5 x $25) = $175
145 hours 24 hours per day = 6 days and one hour (must pay for 7 days)
$50 + (6 x $25) = $200
$200 - $175 = $25 more
The function y= -0.2 + 0.5 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer.
A. Identify and intercept the x- intercept
B. Identify and intercept the y-intercept
Answer:
A
Step-by-step explanation:
intercept the x- intercept
Answer:
Step-by-step explain
x-intercept: 2.8 hours
y-intercept: 0.7 . . . . fraction of power remaining
Step-by-step explanation:
The equation is in slope-intercept form, so the y-intercept can be read directly: 0.7.
To find the x-intercept, set y=0 and solve for x:
0 = -0.25x +0.7
0.25x = 0.7 . . . . . add .25x
x = 2.8 . . . . . . . . . multiply by 4 (that is, the reciprocal of 0.25)
The x-intercept is 2.8; the y-intercept is 0.7.
Y=6x-3 function rule
Answer:
f(x) = 6x - 3
Step-by-step explanation:
4. Write the equation in point-slope form. (-6, -2) and m = 3
Mount Whitney, is the highest point in California. It sits at 14,494 feet above sea level. The lowest point in California is Death Valley, which is 282 feet below sea level. What is the DIFFERENCE between the two points? ITS TIMED!!
Answer:
14,776 feet
Step-by-step explanation:
please help i will give brainliest
what is the value of x if 85 + 19x
Answer:
we dont know what the equation equals yes im using this for free points im having a compition with my friend so ty im srry if i offended you
Step-by-step explanation:
A new Playstation game system costs $380. The tax on the system is 4%. What is the total cost of the system including tax? *
Answer:
395.2
Step-by-step explanation:
380 x 0.04 = 15.2
380 + 15.2 = 395.2
Answer:
The cost of the system including the tax is $395.20.
Step-by-step explanation:
If the tax is 4% that means that the total price will equal...
380 + (380)(0.04) = $395.20
Therefore the cost of the system including the tax will be $395.20.
Jay bought 6 tubs of kutsinta at P70 per tub plus a delivery charge of P30. How much will she pay for her order?
Answer:
the total amount paid by her is P450
Step-by-step explanation:
The computation of the total amount paid by her is given below;
= Total cost + delivery charges
= 6 tubs at P70 + P 30
= P420 + P30
= P450
Hence, the total amount paid by her is P450
can someone help please
John is making a circular table that has a top with a diameter of 24 inches. Find the circumference of the table and round to the nearest tenth.
Answer:
The cirumference would be 78.5.
24*pi would equal 75.5398163397 so just round that.
Hope this helped
Which numbers from the list below are irrational numbers?
Your answer:
fraction numerator square root of 3 over denominator 7 end fraction
square root of 2.3 end root
8.5353...
fraction numerator negative 2 over denominator 5 end fraction
Answer:
1st and 2nd option are the correct answers.
Write two numbers that multiply to the value on top and add to the value on bottom.
Answer:
10 ,22
Step-by-step explanation:
i think so.................
What’s the measurement of
Step-by-step explanation:
4x and 6x sit on a straight line therefore must equal to 180°
4x+6x = 180° (∠'s on str. line)
10x = 180
x= 180/10
x= 18
Then we need to find ∠UYV
∠UYV = 4x
=4(18)
=72°
So ∠UYV = 72°
On a field trip there are 30 kids and 6 adults. Which of the following is a correct way to represent the ratio of these two quantities?
A) 5 kids per 1 adult
B)15 kids per 4 adults
C)1 adult per 5 kids
D)2 adults per 10 kids
This is for a TEST so can u show the work
Which equation represents a line which is perpendicular to the y-axis?
Answer:
The real answer is y=5
Step-by-step explanation:
because its horizontal
y=5 represents a line which is perpendicular to the y-axis
What is Straight line?A line is an infinitely long object with no width, depth, or curvature. Thus, lines are one-dimensional objects
We need to find the equation which represents a line that is perpendicular to the y-axis
A line perpendicular to the y axis will be a horizontal line, the equation of any horizontal line is y=b where b is the y-intercept.
In the given options
x=-6
y=x-4
y=5
and x=-2y
The only horizontal line is y=5
Hence, y=5 represents a line which is perpendicular to the y-axis
To learn more on Straight lines click:
https://brainly.com/question/29223887
#SPJ2
which equation is represented by the phrase a number increased by 3 equals 10
Gabriella made 5% of her free throws over the season. If she shot 180 free throws, how
many did she miss?
The Washington Monument is an obelisk with a square pyramid top. The slant height of the pyramid is 55.5 feet, and the square base has sides of 34.5 feet. Find the surface area of the pyramid.
4x + (-3) = -11
What is my answer can You please help me
Answer:
-2
Step-by-step explanation:
Let's solve your equation step-by-step
4x−3=−11
Step 1: Add 3 to both sides
4x−3+3=−11+3
4x=−8
Step 2: Divide both sides by 4
4x
4
=
−8
4
x=−2
Answer:
[tex]4x + ( - 3) = - 11 \\ 4x (- 3) = - 11 \\ 4x = - 11 + 3 \\ 4x = - 8 \\ x = \frac{ - 8}{4} \\ x = - 2[/tex]
What is the possible scale factor for the rectangle?
Answer:
A
Step-by-step explanation:
divide until the remainder is zero.
7.4 ÷ 4
Answer:
1.85
Step-by-step explanation:
Answer:
this is not possible as it is a non terminating decimal
Are the following triangles similar? Show all work and/or explanations. If so, state the reason (SSS,SAS,AA)
there are 40 students on a swim team.The coach needs to rent vans to take the team to a swimming competition.Each van can take 6 swimmers. how many vans will the coach need for 40 students.
Answer:
They will need 7 vans.
Answer:
The answer is 7 vans
Step-by-step explanation:
Divide 40/6
you get 6.6 so you just round up to 7.
The 7th bus will have less passengers but that is how many you will need for everyone to fit
Hope that helps
Ulet rolls 2 fair dice and adds the results from each. Work out the probability of getting a total of 7.
Answer:
7/ 36
Step-by-step explanation:
Roll of 2 fair six sided die :
Sample space = 6² = 36
Sum of 7:
(1,6) ; (6,1) ; (3,4) ; (4,3) ; (2,5) ; (5,2) = 6
Probability = required outcome / Total possible outcomes
Required outcome = 7
Total possible outcomes = 36
P(obtaining a sum of 7) = 7 / 36
Use synthetic division to solve
I need help due in a Hour PLZ HURRY
Answer:
circumference=πd=6πcm
circumference of dark arc =(360-120)/360×πd=
240/360×6π=4π is the required answer