Answer:
x = 3
Step-by-step explanation:
4x - 5 = 2x + 1
Subtract 2x from both sides;
2x - 5 = 1
Add 5 to both sides;
2x = 6
Divide both sides by 2;
x = 3
Answer:
X-3
Step-by-step explanation:
[-6, -4] average rate of change on the interval
Answer:
4
Step-by-step explanation:
first you add
-6 + -2 = -8
then you devide
2÷-8 = 4
the table shows the amount of a radioactive sample that remains after a certain number of days. use the data in the table to describe the relationship between the number of milligrams remaining and days. the sample originally weighed __ mg.
The relationship is best modeled by ________ function that _________.
Answer:
1. 10 mg
2. an exponential
3. decreases only
Step-by-step explanation:
its correct
Answer:
10 mg, an exponential, decreases only
Step-by-step explanation:
10 mg, an exponential, decreases only
F(-2) if f(x)= 4x^3+6x^2+3x
Answer:
-14
Step-by-step explanation:
Substitute -2 into the equation for x and evaluate; 4(-2)^3+6(-2)^2+3(-2)=-14
PLEASE HELP!!
Find the value of r so that the line through (2,8) and (r,-4) has a slope of -3
Answer:
r=6
Step-by-step explanation:
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
m= -3
(2,8) (r,-4)
[tex]-3=\frac{-4-8}{r-2}[/tex]
[tex]-3r+6=-12[/tex]
[tex]-3r=-18[/tex]
r= 6
Mark makes a simple return of 2% on an investment in one month and a return of -0.5% in the next month. What is the sum of the returns Mark made?
A. -2.5%
B. -1.5%
C. 2.5%
D. 1.5%
Answer:
I think the answer is d
Step-by-step explanation:
A line with a slope of 3 passes through the point (2, 5).
Write an equation for this line in point-slope form.
y-(BLANK)=(BLANK)(x-2)
[tex]y - 5 = 3(x - 2)[/tex]
Which second degree polynomial function has a leading coefficient of 2 and roots –3 and 5? f(x) = 2x2 + 4x – 30 f(x) = 2x2 + 2x – 15 f(x) = 2x2 – 4x – 30 f(x) = 2x2 – 2x – 15
Answer:
c
Step-by-step explanation:
um whats your taco bell order
A quadratic equation is an equation whose leading coefficient is of the second degree. The correct option is C.
What is a quadratic equation?A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c.
Its roots are given as:
[tex]x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
The second-degree polynomial function that has roots –3 and 5 are,
f(x) = (x+3)(x-5)
f(x) = x² + 3x - 5x -15
f(x) = x² - 2x - 15
Now, it is needed that the polynomial's leading coefficient should be 2. Therefore, the polynomial should be multiplied by 2. Thus, the polynomial will be,
f(x) = 2x² - 4x - 30
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- 2(x + 3)
Simply the expression
Answer:
Distribute
-2x -6
Step-by-step explanation:
Answer:
-2x - 6
Step-by-step explanation:
Multiply everything in parentheses by the number outside of the parentheses which is -2
-2 × x = -2x
-2 × 3 = -6
A person can burn about 7 calories per minute bicycling. Let x represent the number of minutes bicycled,
and let y represent the number of calories burned. Create a mapping diagram to show the number of
calories burned by bicycling for 40, 80, 120, or 160 minutes. Determine the domain and range of the
relation in context and explain whether or not this represents a function.
Answer:
Minutes Calories
50 350
100 700
150 1050
200 1400
The domain values are
50, 100, 150, 200
The domain is minutes bicycling
.
The range values are
350, 700, 1050, 1400
The range is the calories burned
.
This relation is a function. Each domain value is paired with exactly one range value
Step-by-step explanation:
Since the person burns 7 calories per minute, multiply the number of minutes by 7 to find the range.
I will pick Brainiest plz help
solve for k
5(−2k−3)+2k
Answer:
-8k-15
Step-by-step explanation:
5(−2k−3)+2k
Distribute
-10k -15 +2k
Combine like terms
-8k-15
Abby is adopting kittens from the pet store. if there are 18 kittens, how many ways can she choose 2 kittens? **the answer isnt 9 or 32**
Answer:
153 ways.
Step-by-step explanation:
The answer is the number of combinations of 2 from 18
= 18! / 2! (18-2)!
= 18! / 2! 16!
= 18*17*16! / 2! 16!
= 18 * 17 / 2*1
= 9 * 17
= 153 ways.
Explain how to solve this problem.
-5 + 18 + (-12) + (-1)
Answer:
0
Step-by-step explanation:
-5 + 18 + (-12) + (-1)
-5+18-12-1
13-13
0
Which property justifies the statement below?
x(y−3)=xy−3x
A Distributive Property
B Associative Property
C Transitive Property
D Commutative Property
pls help :((
Find the distance between the two points in simplest radical form.
(2,-8) and (-6,-1)
Answer:
( 8,7 )
Step-by-step explanation:
Answer:
[tex]\sqrt{113}[/tex]
Step-by-step explanation:
The number of minutes need to complete a set of tasks varies directly with the number of tasks and inversely with the number of people working on the task. if it takes 91 people 2 minutes to complete 13s task, how long, in minutes, will it take two people to complete 4 tasks
Answer:
28 minutes
Step-by-step explanation:
y =kz/x where k is the constant of variation
y = number of minutes and x is people involved and z is the number of tasks
2 = k * 13/91
2 = k * 1/7
Multiply each side by 7
2*7 = k * 1/7 *7
14 =k
y =14 z/x
y = 14 * 4/2
y = 28
EASYYYYY PLEASE HELP!! SOS
Write the verbal description for algebraic expression or equation.
1. 2n + 6 = 20
______________
2. y - 13 *
_____________
Answer:
2n+6=20
-6 -6
2n=14
÷2 ÷2
n=7
Answer:
n = 7 for #1
Step-by-step explanation:
2n + 6= 20
-6 -6
2n = 14
/2 /2
n = 7
A survey of Micki's customers showed that 1,800 out of 2,200 of the customers buying carrots would buy organic carrots if the carrots were placed near the front of the store. In the first month, 1,500 of those 2,200 customers actually bought the organic carrots. What was the percent error in the survey estimate of the number of people buying organic carrots?
Answer:
13.63%
Step-by-step explanation:
The computation of the percent error is shown below;
= (Showing amount - first month amount) ÷ (Actual purchased)
= (1,800 - 1,500) ÷ (2,200)
= (300) ÷ (2,200)
= 13.63%
Hence, the percent error is 13.63%
We simply applied the above formula so that the correct percent error could come and the same is to be applied
Answer:
83.3%
Step-by-step explanation:
Find the value of x in each case:
Answer:
X = 11
Step-by-step explanation:
To solve this, we need to find all the angles within the triangle. We know one angle (f) is 33 degrees because 147 + f = 180 = f = 33. Next we need to set up two more formulas to solve for x:
4x + y = 180
x + y + 33 = 180 => x + y = 147
Next, we can isolate one of the variables in one of the formulas and plug it back into the other:
x + y = 147 => y = 147 - x
4x + y = 180 => 4x + 147 - x = 180 => 3x + 147 = 180 => 3x = 33 => x = 11
I hope this helps!
-TheBusinessMan
The required measure of x in the angles is 11.
Given that,
To determine the value of x in the measure of angles.
The angle can be defined as the one line inclined over another line.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Alternate corresponding angles
∠GFB = ∠FBA
∠FBA = 147°
Alternate corresponding angles
∠DEB = ∠EBC
4x = x + ∠CBF
∠CBF = 3x
Now,
∠CBF + ∠FBA = 180
3x + 147 = 180
3x = 180 - 147
3x = 33
x = 11
Now
∠DEB = 4x = 44°
Thus, the required measure of x in the angles is 11.
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barthas chocolate factory is expanding, she wanted to know how many workers she needs to produce chocolate bars . the following table lists certain number of workers and the corresponding amounts of chocolate bars they produce. true or false: the relationship between the number of workers and the number of bars produced it proportional
Answer:
Step-by-step explanation:true
what is the probability of getting a total of 7 when you roll the dice twice
A. 1/36
B. 6
C. 1/6
D. 0.2
Answer:
1/6
Since there are 6 sides on a dice, divide 100 by 6.
100 ÷ 6 = 16.67%
Now, convert 16.67% to a fraction.
16.67% = 1/6 fraction.
You get 1/6. That is your answer. Hope it helps!
4x - 7 + 3x = 35 what are all the properties for this asap
Answer:
x = 6
Step-by-step explanation:
4x - 7 + 3x = 35
Collect like terms;
7x - 7 = 35
Add 7 to both sides;
7x = 42
Divide both sides by 7;
x = 6
evaluate 14-8+3+8x(12divided by 8
Answer:
25.5
Step-by-step explanation:
Answer is a 21
I hope it is helpful for youPls show work and follow the steps
Answer:
r = -4
Step-by-step explanation:
-3r+9 = -4r+5
+[4r] +4r
_____________
r+9 = 5
-[9] -9
__________
r = [-4]
2. The product of an even number and an odd number is an even number.
Answer:
5
Step-by-step explanation:
ok thanks
Answer:
yup
Step-by-step explanation:
1-9n - 10 - 2n? - 4n
how do i simplify this polynomial the instructions are , ”simplify the polynomial and combine like terms”.
x2+10x+16 Help Needs factorising It is not 8 and 2
Answer:
X2+10x+16=0
Step-by-step explanation:
help me pls i’ll give you a kiss
Answer: 152.46 squared centimeters.
Step-by-step explanation:
The equation to find the area of the trapezoid is A = ½ (6.6 + 16.5) 13.2Distribute ½ into (6.6 + 16.5) . A = (3.3 + 8.25) 13.2.Add the numbers inside the parenthesis. A = 11.55 * 13.2Multiply 11.55 * 13.2. A = 152.46.Answer:
A = ½ (6.6 + 16.5) 13.2
A = (3.3 + 8.25) 13.2.
A = 11.55 * 13.2
Multiply 11.55 * 13.2. A = 152.46.
Step-by-step explanation:
Marwin pays 106.20 for 3.6 pounds lobster what is the price per pound of lobster in dollars and cents
Answer:
$29.50
Step-by-step explanation:
Divide the total (106.20) by 3.6 and you get 29.5
You can check your answer by multiplying 29.5 by 3.6 and you see it equals 106.2
Hope this helps!
If the length, width and height of a sphere is 3.7 cm, what is the diameter, radius and volume ?
The length or width or height of Sphere means diameter. It's same.
A 2-column table with 5 rows. Column 1 is labeled Key Words with entries twelve, more than, quotient, a number, eight. Column 2 is labeled Replace with entries 12, +, divided by, k, 8. Write and evaluate the expression. Then, complete the statement. twelve more than the quotient of a number and eight The value of the expression when k = 40 is
Answer:
17
Step-by-step explanation:
hope it helps
Answer:
The value of the expression when k = 40 is 17.
Step-by-step explanation:
Please give the person that answered before me the brainiest because they deserve it, I just used their answer so you could choose brainiest.
