Answer:
[tex]r = - 5[/tex]
Step-by-step explanation:
[tex] - 2(1 - 8r) = - 82 \\ - 2 + 16r = - 82 \\ 16r = - 80 \\ \frac{16r}{16} = \frac{ - 80}{16} \\ r = - 5[/tex]
Sydney applied the steps below to find the product of (3.1)(–1.6). Step 1: (3.1)(–1.6) = (–1.6)(3.1) Step 2: = _______________ Step 3: = (–4.8) + (–0.16) Step 4: = –4.96 Which expression correctly fills in the blank in Step 2?
Answer:
(-1.6)(3 + 0.1)
Step-by-step explanation:
Sidney applied the steps to find the product of two numbers (3.1) and (-1.6),
Step 1,
(3.1)(-1.6) = (-1.6)(3.1)
Step 2,
(-1.6)(3.1) = (-1.6)(3 + 0.1)
Step 3,
(-1.6)(3 + 0.1) = -4.8 + (-0.16) [Distributive property]
Step 4,
-4.8 + (-0.16) = -4.96
Therefore, expression that correctly fits in step 2 will be,
(-1.6)(3 + 0.1)
Answer:
it might be D
Step-by-step explanation:
sorry is im wrong
EDIT
on edge im right!!!!!!!!!!!!!!
The line shown represents the amount of money Ben owes on his lunch account. 2 days ago, he owed $1. What is an equation of the line in point-slope form?
Answer:
y=-2x-1
Make sure to have no spaces in your answer.( if your test said that remember to not put space between them)
Step-by-step explanation:
Gary has a strip of paper that is 1712 inches long. He will place a sticker on the paper every
114 inches.
How many stickers will Gary place on the strip of paper?
Answer:
15
Step-by-step explanation:
pls rate and thank me so i can get the points, thanks
Answer:
he can fit 15 stickers...............................
Step-by-step explanation:
Giving 5 STARS AND BRAINLIEST IF YOU ANSWER CORRECTLY!!
TTM
On a very cold morning, it was -8°F. As the day went on, the temperature rose 2 degrees each hour. Which equation shows the temperature over time?
The last one the answer is ( number ) 40 degrees
If there are 62 boys out of 100 grade 7 students, how do you know this is in fractional form? What is the decimal form?
I know this is in fraction form because it says out of. A fraction will say out of, for example: 3 out of 4. The number 62 boys out of 100 students can be represented as 0.62, 0.62 of 1 (100) whole number.
Hope this helps!
Natasha can type 30 words a minute.
How many words can be typed in 7.5 minutes?
PLEASE HELP!! If f (x) = 4x^-2 + 1/4x^2 + 4, then f’(2) =
Work Shown:
f(x) = 4x^(-2) + (1/4)x^2 + 4
f ' (x) = 4*(-2)x^(-3) + (1/4)*2x .... power rule
f ' (x) = -8x^(-3) + (1/2)x
f ' (2) = -8(2)^(-3) + (1/2)*(2)
f ' (2) = 0
Finding the derivative, we have that f'(2) = 0, option D.
-----------------------------
The derivative of an exponent is:[tex](x^n)^{\prime} = nx^{n-1}[/tex]
Additionally, the sum of the derivatives is the derivative of the sum. The derivative of a constant is zero.-----------------------------
The function is:
[tex]f(x) = 4x^{-2} + \frac{x^2}{4} + 4[/tex]
The derivatives are:
[tex](4x^{-2})^{\prime} = -2 \times 4x^{-2 -1} = -8x^{-3}[/tex]
[tex](\frac{x^2}{4})^{\prime} = \frac{2x}{4}[/tex]
[tex](4)^{\prime} = 0[/tex]
Thus, the derivative of the function is:
[tex]f^{\prime}(x) = -8x^{-3} + \frac{2x}{4} = -\frac{8}{x^3} + \frac{2x}{4}[/tex]
At x = 2:
[tex]f^{\prime}(2) = -\frac{8}{2^3} + \frac{2(2)}{4} = -1 + 1 = 0[/tex]
Thus f'(2) = 0, option D.
A similar problem is given at https://brainly.com/question/10037173
I can solve this grouping symbol question, please help!
MATH HELP PLESE HELP ME
Answer:
x=99
z=28
Step-by-step explanation:
180-81=99
81+3=84
84/3=28
Part A: What is a statement in a two-column proof?
Answer:
the left column is the statement and Right column is the reason. The statement is the steps of how are you going to solve the problem
the high road in scotland is 180 miles longer than the low road. when Jocelyn goes to scotland and returns along the low road the round trip is 1060 miles. how many miles is the high road
a.350
b. 440
c. 530
d. 620
Answer:
the aswer is 620(d)
Step-by-step explanation:
what i did was subtract 180 from 1060 and got 880
then i divides that by 2 and got 440
once i did that i then added the 18o to the 440 and got 620
Given A and B are vertical angles with m anglr A = 20x + 10 and m angle B =30x - 10 , what is X?
Answer: The answer is 2
Step-by-step explanation:
Given A and B are vertical angles with m ∠A = 20x + 10 and m ∠B =30x - 10, the value of x is 2
From the Vertical angle theorems, we have that
Two opposite vertical angles formed when two lines intersect each other are always equal to each other.
Now, from the question, we are given that A and B are vertical angles
That means
A = B
Also, from the question
measure of angle A = 20x + 10 and measure of angle B = 30x - 10
To determine the value of x, we will equate the two equations to each other
A = 20x + 10
B = 30x - 10
Since, A = B
∴ 20x + 10 = 30x - 10
To solve for x,
First, add 10 to both sides20x + 10 + 10 = 30x - 10 +10
We get
20x + 20 = 30x
Now, subtract 20x from both sides20x - 20x + 20 = 30x - 20x
20 = 10x
That is,
10x = 20
∴ x = 20 ÷ 10
x = 2
Hence, given A and B are vertical angles with m ∠A = 20x + 10 and m ∠B =30x - 10, the value of x is 2
Learn more here: https://brainly.com/question/5719544
How do I slove this eqaution, and whats the answer?
-3(n+6)+10=-8
-3(n+6)+10=-8
Use distributive property:
-3n -18 +10 = -8
Combine like terms:
-3n -8 = -8
Add 8 to both sides:
-3n = 0
Divide both sides by -3:
n = 0
Answer:
n=0
Step-by-step explanation:
what is the answer for 6-7b+7bx3+b?
Answer:
=7bx3−6b+6
Step-by-step explanation:
6−7b+7bx3+b
=6+−7b+7bx3+b
=6+−7b+7bx3+b
=(7bx3)+(−7b+b)+(6)
=7bx3+−6b+6
Answer:43b
Step-by-step explanation:7+7 x3 +b = 43b
a statement that switches the hypothesis and conclusion and negates both
Need help asap thank u
Answer:
<4 ~= <5 - Consecutive Interior Angles Theorem
<4 ~= <2 - Vertical Angles Theorem
<6 ~= <2 - Corresponding Angles Theorem
line I || line m - Transitive Property
Pythagorean Theory Plz help
The longest side is always the hypotenuse
Which measurement statement is correct 10 points
What is the equation of the line that passes through the point (-5, 1) and has a slope of-1/5
Answer: Y=1/5x-2
Step-by-step explanation:
Solve the equation below :
7 – 9x – 15 + 12x
Answer:
-8+3x
Step-by-step explanation:
7 – 9x – 15 + 12x
We cannot solve since there is no equals sign, we can only simplify
Combine like terms
7 -15 -9x+12x
-8 +3x
Answer:
3x - 8
Hope that was the answer you were looking for :D
You want to cover the tables with pumpkin paper. Each table is 3 1⁄2 feet by 6 feet. There are 4 tables. How much pumpkin paper will you need?
Please help.
Answer:
25
Step-by-step explanation:
multiply 3 1/2 by 6
add the answer 4 times
I THINK
Are the following equations perpendicular y-8=1/2(x+5) and y-
8=-1/2(x+5)? *
Answer:
Step-by-step explanation:
Yes
Which of the following is a plural subjective pronoun?
A. I
B. it
C. we
D. them
Answer:
D
Step-by-step explanation:
A trail mix has 16 cups of raisins, 3 cups of dates, 24 cups of peanuts, and 2 cups of cashews. Which
Ingredients are in the same ratlo as cashews to raisins?
The ratio that is the same is? to 2
Answer:
Step-by-step explanation:
The ratio for cashews to raisins is 2:16 and you can simplify that by 2 because they are factors of 2. When you simplify you get 1:8.
The ratio for dates to peanuts is 3:24 and you can simplify that by 3 since they are factors of 3. When you simplify by 3, you get 1:8 which is the same ratio for cashews to raisins.
what is an equation of the line that passes through the point (5, -7) and has a slope of 0
Answer:
y= -7
Step-by-step explanation:
A line that has a slope of zero is a horizontal line
Horizontal lines are of the form
y=
The y coordinate is -7
y= -7
Do you like me
What is formula
Answer:
what?
Step-by-step explanation:
Answer:
I am cunfushion
Step-by-step explanation:
Given f(x) = 70 + 11x, find x when f(x) =158
Answer:
[tex] \huge \boxed{x = 8}[/tex]
Step-by-step explanation:
f(x) = 70 + 11x
To find the value of x when f(x) =158 , equate f(x) to 158
We have
[tex]70 + 11x = 158 \\ 11x = 158 - 70 \\ 11x = 88[/tex]
Divide both sides by 11
[tex] \frac{11x}{11} = \frac{88}{11} \\ [/tex]
We have the final answer as
x = 8Hope this helps you
Part A: Solve for A
Part B: Determine m∠ABQ
Part C: Determine m∠BCR
If there is work please show if you can
Answer:
a=25
angle abq=139 degrees
bcr=41
Step-by-step explanation:
(2a-9)+(5a+14)=180
7a+5=180
7a=175
a=25
2(25)-9=41
180-41=139
angle abq=139 degrees
bcr=41
Makensie bought 5.4 pounds of cashews for $18.62. Approximately how many pounds of cashews can Makensie purchase for $1?
Answer:
$4.00 per pound
Step-by-step explanation:
A grocery store sells cashew nuts at $8.00 per pound and peanuts at $4.00 per pound. They want to mix 10 pounds of the cashews with peanuts to create a mixture that will sell at $6.50 per pound
PLEASE HELP ME!! URGENT!!WILL MARK BRAINLIEST