Answer:His error lies in the subtraction of 12 from 8 , he wrote 4 instead of -4 , as 8-12 gives -4 instead of 4.
Step-by-step explanation:
Step 1
Rewriting this to a mathematical expression 2 cubed (3 minus 1) + 4 (8 minus 12) and solving correctly gives
2³(3-1)+ 4(8-12)
=8(2) + 4(-4)
= 16 +(-16)
16-16=0
Step 2-----Jacki's evaluation
2³(3-1)+ 4(8-12)
= 2³(2) +4(4)
= 8(2) +16= 16+ 16 =32
His error lies in the subtraction of 12 from 8 , he wrote 4 instead of -4 , as 8-12 gives -4 instead of 4.
Answer:
C
Step-by-step explanation:
I took the test ;)
The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 162 adult males, the mean pulse rate is 69.6 bpm and the standard deviation is 11.3 bpm. Find the value of the test statistic.
Answer:
0.6758
Step-by-step explanation:
Given That:
Population Mean pulse rate (μ) = 69
Sample size (n) = 162
Sample mean (m) = 69.6
standard deviation (σ) = 11.3
Value of test statistic :
(m - μ) / (σ/√n)
(69.6 - 69) / (11.3 / √162)
0.6 / 0.8878118
= 0.6758
What is this equation rewritten in logarithmic form?
9x=3
Answer: x = log₉ 3
Plz mark brainliest:)
Answer: log9 3 = x
Step-by-step explanation: Edmentum Exact
an article was sold for $560 inclusive of a 20% discount. what was the price before the discount was given?
Answer:
672
Step-by-step explanation:
(1. Turn the percent into a decimal) 20% = 0.20 (2. Multiply 560 x 0.20 = 112) (3. Add 560 + 112)
If u answer I will give you brainliest.
A car traveled a distance of 600 km at a speed of 75 km/hr. How many hours did it take the car to travel that distance? *
A 8 hrs
B 45 hrs
C 0.1 hrs
D 80 hrs
Answer: A. 8 hrs
Step-by-step explanation:
what is the sum of 5s^2 - 2s + 1 and 3s^2 - 4s + 7
Find the equation of the line passing through (8,-2) and (1,-2)
Answer: -2
Step-by-step explanation:
Use the slope formula and slope-intercept form
y = mx + b to find the equation.y = −2
Answer:
-2
Step-by-step explanation:
you need to use the mx+b. :)
Can some help someone help me
Answer:
they have different y-intercepts. the top one will be at pos 45 and the other one will be at -10
Step-by-step explanation: they parallel just far apart on the y int
Graph ≤ -5
Circle is
a. open
b. closed
Arrow is pointing
c. left
d. right
Answer:
Closed, and Left.
Step-by-step explanation:
The arrow on the symbol is pointing left and when there is a line underneath it it means the circle is full.
Write the equation of the line, with the given properties, in slope-intercept form.
Slope = -4, through (7,4)
Answer:
Step-by-step explanation:
Slope-intercept form means the equation should be written in this manner
[tex]y=mx+c[/tex]
where m is the slope and c is the y-intercept
so lets take all the date we have to achieve it.
We have a point (7,4) and slope which is m= -4 we can substitute the slope and point in our equation and find the y-intercept .
[tex]y=mx+c\\4=(-4)(7)+c\\4=-28+c\\32=c[/tex]
so now we have our y-intercept that is c=32
now for the equation to be in the slope-intercept form we need m and c and we have both so just replace these variables with their values.
[tex]y=-4x+32[/tex]
PLEASE SHOW YOUR WORK WILL MARK BRAINLIEST
Given the equation: 3x-4y=24
Find two solutions to the equation
Write your answers as coordinates
Answer:
Step-by-step explanation:
we can write this equation into a function to easily plug in values and find solutions
[tex]3x - 4y = 24\\4y = 3x - 24\\y = \frac{3x}{4} - 6[/tex]
now we can plug in any x value and find an appropriate y value
e.g.
x = 0, y = -6 (0, -6)
x = 4, y = -3 (4, -3) [tex]\frac{3(4)}{4} - 6 = 3 - 6 = -3[/tex]
x = 16, y = 6 (16, 6) [tex]\frac{3*16}{4} - 6 = 12 - 6 = 6[/tex]
etc
The Jensen family took a trip in September. Sally's dad pays $83.58 to fill up the gas tank of the SUV. When he filled up the gas tank, the gas price was $3.799 per gallon. What is the size of the gas tank in gallons?
Answer:
22
Step-by-step explanation:
Do 83.58 divided by 3.799
A softball team is ordering pizza to eat after their tournament. They plan to order cheese pizzas that cost $6 each and four-topping pizzas that cost $10 each. They order \large c cheese pizzas and \large f four-topping pizzas. Which expression represents the total cost of all of the pizzas they order? a \large 6c+10f b \large 6+10 c \large 6f+10c d \large c+f
Answer:
6c + 10f
Step-by-step explanation:
cheese pizzas = $6
four-topping pizzas = $10
They order large c cheese pizzas and large f four-topping pizzas
The total cost of the pizza = price *quantity of cheese pizza + price*quantity of four topping pizza
= 6c + 10f
Triangle ABC is translated 2 units up and 4 units to the right and is then rotated 180° to
produce the image triangle A'B'C'. What are the coordinates of B' in the resulting figure?
Answer:
[tex]B' = (7,-6)[/tex]
Step-by-step explanation:
From the attachment, we have that:
[tex]A = (1,8)[/tex]
[tex]B = (-3,4)[/tex]
[tex]C = (4,-2)[/tex]
Required
Determine B'
Taking the translation one at a time:
2 units up
This implies, we add 2 to the y value of the function
[tex]B = (-3,4)[/tex] becomes
[tex]B' = (-3, 4 + 2)[/tex]
[tex]B' = (-3, 6)[/tex]
4 units right
This implies, we subtract 4 to the x value of the function
[tex]B' = (-3, 6)[/tex] becomes
[tex]B' = (-3 - 4,6)[/tex]
[tex]B' = (-7,6)[/tex]
180 degrees rotation
Here; B'(x,y) becomes B'(-x,-y)
So, the initial coordinates [tex]B' = (-7,6)[/tex]
becomes
[tex]B' = (-(-7),-6)[/tex]
[tex]B' = (7,-6)[/tex]
Hence:
The final coordinates of B' is [tex]B' = (7,-6)[/tex]
Select the two expressions 3^8 x 27
3^8 x 27
= 6561 x 27
=177147
answer
=177147
Step-by-step explanation:
3^8 x 27
= 6561 x 27
=177147
Solve the system by elimination (please show all the steps!)
-2x+2y+3z=0
-2x-y+z=-3
2x+3y+3z=5
Answer:
i think its z%/67
Step-by-step explanation:
becuase if you add it up it is 68 but if you sub on it its ether 67 or 63
Sara deposited $150 to open a new bank account before she paid $225 for her portion of the rent. Her bank charged her a $50 overdraft fee. Then she deposited her paycheck of $450. How much money is in Sara’s account now? *
Answer:
$400
Step-by-step explanation:
450-50=400
Answer:325
Step-by-step explanation: Start off with 150, 150-225=-75 -75-50=-125 -125+450=324 Positive
-
Simplify. help plz the two is a exponent
-3 2 =
Answer:
9
Step-by-step explanation:
-3*-3=9
- times a - = +
Answer:
-9
Step-by-step explanation:
An exponent is multiplying the number by itself. I understand why you might be confused though, with the negative number.
Have a great day!
find the slope of y=5/4x-1
Answer:
slope = [tex]\frac{5}{4}[/tex]
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = [tex]\frac{5}{4}[/tex] x - 1 ← is in slope- intercept form
with slope m = [tex]\frac{5}{4}[/tex]
Answer:
x=4/5 or x=0.8 they are the same thing
Step-by-step explanation:
i need help with 2: simplify algebraic expressions
Answer:
a). 11x²
b). 6x + 5y
c). -4x - 20
Step-by-step explanation:
a). 8x² + 3x²
When you collect the like terms (8 and 3 are the coefficients of x²) and add them together, you get 11x²
b). 3x - 5x + y + 4y + 8x
Start by placing the like terms next to each other.
3x - 5x + 8x + y + 4y
Then add/subtract
6x + 5y
c). -4(x + 7) + 8
First, you have to expand the expression and then simplify.
-4x - 28 + 8
-4x - 20
Step by step
a(b+c) - d = e, for a
Answer:
a = [tex]\frac{e+d}{b+c}[/tex]
Step-by-step explanation:
To isolate the a, the first thing I would do is bring the d to the other side of the equation, remember to switch the sign. This would give me a(b+c) = e+d. Next, in order to get rid of the (b+c), bring it to the other side by dividing since it is attached to the a variable by multiplication. This leaves me with a = e+d / b+c. Make sure not to distribute, this would duplicate your a variable.
Gwen and Sandy do some fundraising for their sporting team. Together they raised $447. If Gwen raised $221 more than Sandy, and
Sandy raised $p:
Write an equation in terms of p that represents the relationship between the different amounts and solve for p.
This has 20 points please help me
Answer:
not sure
Step-by-step explanation:
Answer:
226=p
Step-by-step explanation:
221+p=447
-221 -221
p=226
hope this helped :)
Brandon rides his bike 7 miles south and then 24 miles west. About how far is he from his starting point
there are 21 people taking a group trip to north carolina. Tickets for the trip cost $121 each. what is the total cost of the tickets?
Answer:
$2541
Step-by-step explanation:
21(121)=2541
(cant tell if ur playin w me or not T_T)
Math the question is 6 6/8 Divided into 2 3/6 + 3 5/6
Answer: 6 3/15
Step-by-step explanation:
Please help me the picture is above, just fill in the table I’ll mark you as brainliest if you answer. Thank you :)
Answer:
Always pay attention in class. Okay Shawtie.
Step-by-step explanation:
Always stay positive.❤
Brenda is throwing a party. it costs $300 to rent the hall. It costs $35 per person for food. Write an equation to show the total cost of the party (y) based on the number of people invited (x).
Answer:
300+35x=y
This is how you do this one.
Can someone please tell me their thoughts or answers because I’m really stuck and it’s due today.
ANSWER FAST FOR BRAILIEST AND FIVE STARS AND THXS!
Answer:
D. irrational
Step-by-step explanation:
π + 3/4 = 3.891592654 which cannot be written into a fraction so it is irrational
is this a function or not: step by step
Answer:
yea i think
Step-by-step explanation:
Luis distributes 49 roses equally among 7 friends. Then, 3 of his friends combine the roses they received to make a bouquet. How many roses are in this bouquet?Luis distributes 49 roses equally among 7 friends. Then, 3 of his friends combine the roses they received to make a bouquet. How many roses are in this bouquet?
Answer:
21
Step-by-step explanation:
[tex]49 \div 7 = 7[/tex]
[tex]7 \times 3 = 21[/tex]
There are 21 roses in bouquet.
What are Arithmetic operations?Arithmetic operations are the fundamentals of math. The majority of the fundamental operations that can be carried out on relations are addition, subtraction, multiplication, and division. During the course of the day, we use them almost constantly. We use mathematical operations every day to figure out the total revenue and expenses of the business, make budgets for the month or year, and measure distances.
Given
total roses = 49
divided equally in 7 friends
number of roses for each friend = 49 ÷ 7
number of roses for each friend = 7
roses combined by 3 friends = 7 + 7 + 7
roses combined by 3 friends = 21
Therefore, roses in bouquet is 21.
Learn more about Arithmetic operations;
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