what is the answer to 2x(4x-5)
Answer:
1 1/2
Step-by-step explanation:
Answer:
8x²-10x
Step-by-step explanation:
In Solving This Equation You Will Need To Follow This;
Original Equation:
2x(4x-5) {You will multiply 2x by the ones in the bracket which is the 4x and -5)
So 2x Multiplied by 4x is doing to give you 8x² we have 8x² because x multiplied by x becomes 2 that's why we have x² so 2x Multiplied by 4x is; 8x²
And 2x Multiplied by -5 is -10x because positive multiplied by negative is negative and when the number is with a variable and you want to multiply it by a natural number it is possible but you can't add a number with a variable to a natural number
So the final answer is; 8x²-10x
Which number has the same absolute value as -2?
0
-1/2
1/2
2
Answer:
2
Step-by-step explanation:
The absolute value of a positive is that same number
For example the absolute value of 4 is 4
The absolute value of a negative is that same number without the negative sign.
For example, the absolute value of -4 is 4
Help please
Mejdhalsbdbjdishdneknmskenai
Answer:
i would say its d. 80
Step-by-step explanation:
cause 24/3 is 8
so 10 x 8 is 80
A figure Quadrant lll was transformed, and the image is in Quadrant IV. Which could NOT have been the transformation?
Which is the simplified form of the expression (6 Superscript negative 2 Baseline times 6 Superscript 5 Baseline) Superscript negative 3?
-3
Step-by-step explanation:
(6-2* 6+5)-2
Answer:
1/6^9
Step-by-step explanation:
hey guys i need help with this im on a timed test so pls hury whats 1+1.
Answer:
one plus one equals two
Step-by-step explanation:
please help this due today by 3:30
Answer:
10 Smackeroos
Step-by-step explanation:
4/15 rounded to the nearest thousandth
I NEED HELP ASAP T-T
please help me fast
I give you 100 point
Answer:
a. 372
b. 708
c. 451
d. 805
e. 965
f. 620
Step-by-step explanation:
Follow the order of operations.
(4-1 + 8 ÷ 8) muliplied by 5
Answer:
20
Step-by-step explanation:
(4-1 + 8 ÷ 8 )= 4
4 x 5 = 20
There are marbles in a bag. Three of the marbles are green, 2 are red, 4 are yellow, 6 are blue, and 1 is white. What is the ratio of yellow marbles to the total number of marbles in the bag?
Group of answer choices
Answer:
4/13
Step-by-step explanation:
Total number of marbles = 2+4+6+1=13
number of yellow = 4
yellow marble/total Number of marbles =4/13
It also detects if you are right or wrong
Answer:
50
Step-by-step explanation:
all your doing is dividing 100 by 20 and u get 50
Answer: 15. A. Proportional 16. B. 50 mph
Step-by-step explanation: The price and the number of apples are proportional based on the info you have given us. And B. 50 is correct because 100 miles in 2 hours is 100/2 which equals 50/1 so the unit rate would be B. 50 mph.
Please help
Match the picture to the reason that would prove the triangles congruent.
Options:
NONE
ASA
SSS
SAS
AAS
HL
Malcolm and Theo's families are both traveling to the same vacation resort.
The equation d = 65t models the distance, d, that Malcolm's family travels after t hours.
The graph below shows the relationship between the distance and the amount of time that Theo's family traveled.
Answer:
Malcom's family travel 15 miles per hour faster than Theo's
Step-by-step explanation:
See attachment for complete question
Given
Malcom's Family:
[tex]d = 65t[/tex]
To determine the equation of Theo's family, we refer to the attached graph.
From the graph:
[tex]t = 1; d = 50[/tex]
[tex]t = 2; d = 100[/tex]
First, we determine the slope, m:
[tex]m = \frac{d_2 - d_1}{t_2 - t_1}[/tex]
[tex]m = \frac{100 - 50}{2- 1}[/tex]
[tex]m = \frac{50}{1}[/tex]
[tex]m = 50[/tex]
Next, we determine equation for Theo's family using:
[tex]d - d_1 = m(t - t_1)[/tex]
[tex]d - 50 =50(t - 1)[/tex]
[tex]d - 50 =50t - 50[/tex]
Add 50 to both sides
[tex]d - 50 +50=50t - 50 + 50[/tex]
[tex]d =50t[/tex]
So, we have the following:
[tex]d = 65t[/tex] --- For Malcom's family
This implies that Malcom's family travel at 65 miles per hour
[tex]d =50t[/tex] --- For Theo's family
This implies that Theo's family travel at 50 miles per hour
The difference between this rates is:
[tex]Rate = 65t - 50t[/tex]
[tex]Rate = 15t[/tex]
Which implies that Malcom's family travel 15 miles per hour faster than Theo's
Consider this equation: -3x - 5 + 2x = 6
Which is an equivalent equation after combining like terms?
A. -8 + 2x = 6
В. -3х - 3= 6
C. -3x - 5 = 4
D. -X - 5 = 6
David kicks a ball off the ground. After t seconds, it’s height, h (in feet), is given by the formula h=-16t^2+80t. How many seconds does the ball reach its maximum height? What is the maximum height reached by the ball?
Answer:
The ball reaches its maximum height at 2.5 seconds
The maximum height is 100 feet
Step-by-step explanation:
Maximum Value of Functions
We use the derivative of a function to find its maximum or minimum value over a given interval.
Given a function y=f(x), the first derivative criterion establishes if x=a is such that:
f'(a)=0, and f''(a) < 0 then x=a is a maximum of f.
The height h in feet of a ball after t seconds is:
[tex]h(t)=-16t^2+80t[/tex]
Find the first derivative:
[tex]h'(t)=-32t+80[/tex]
Equate to 0:
[tex]-32t+80=0[/tex]
Subtract 80:
[tex]-32t=-80[/tex]
Divide by -32:
[tex]t = -80 / (-32) = 2.5[/tex]
t=2.5 seconds
Find the second derivative:
h''(t)=-32
Since h''(t) is always negative, then
The ball reaches its maximum height at 2.5 seconds
To find the value of the maximum height, substitute t=2.5 into the function:
[tex]h(2.5)=-16(2.5)^2+80*2.5=-100+200 = 100[/tex]
The maximum height is 100 feet
Science, technology, engineering and mathematics or STEM education was an initiative developed by the________________.
A. National Science Foundation
B.National Scholar Foundation
C. National Schools Foundation
D. National Secondary Foundation
Answer:
A
Step-by-step explanation:
look it up on google
Answer:
d
Step-by-step explanation:
Find each percent decrease. Round to the nearest percent. From $80 to $64.
Answer: 20%
Step-by-step explanation: The first step in finding how much the quantity decreased. We do a subtraction:
and now we must know how much percentage is 16 of 80, for this we divide:
and finally we convert this decimal value to a percentage multiplying by 100%
0.2(100%) = 20%
the quantity decreased by 20%
Write a division problem that has a quotient of 1/20. At least one of the numbers you give must be a proper fraction. The other can be a proper fraction, whole number, or improper fraction. Neither the dividend nor the divisor can be 1/20.
Answer:
5 divided by 10
Step-by-step explanation:
5 divided by 100 is 0.05 but as a fraction, it's 1/20
3Hg(NO3)2
Please help me with this
Answer:
whats the question
Step-by-step explanation
what do i gotta do??
how many comments dose the cat video get and how many dose the dog get
Answer: 8 cat videos 7 dog videos
No
Step-by-step explanation:
A school rents a bus for $90. If 72 students ride on the bus, what is the cost per student?
A: 0.80
B: 1.18
C: 1.25
D: 18.00
Answer:
C: 1.25
Step-by-step explanation:
because 90/72 = 1.25
The sum of two numbers is 19, and their difference is 55. What are the two numbers?
Answer:
37 and -18
Step-by-step explanation:
Let one number be x and other y
1 x + 1 y = 19 .............1
1 x -1 y = 55 .............2
Eliminate y
multiply (1)by 1
Multiply (2) by 1
1 x 1 y = 19
1 x + -1 y = 55
Add the two equations
2 x = 74
/ 2
x = 37
plug value of x in (1)
1 x + 1 y = 19
37 + 1 y = 19
1 y = 19 -37
1 y = -18
y = -18
37 and -18
Whats is the answer to 3-(-7). I cant seem to figure it out
Find the value of x in the triangle shown below
X=
58°
6
6
5.8
X
Answer:
61
Step-by-step explanation:
Which graph represents 2x − 5y ≥ − 20
Answer:
Go to desmos and it will answer literally all of your graphing questions. Just type in desmos graphing calculator.
Step-by-step explanation:
PLEASE HELPPP!!! If possible how would you prove the given triangles congruent??
What is the congruence statement?
Answer:
triangle pjl is congruent to it's by side side side theorem
PLEASE HELP ME WITH THIS HOME WORK
if i keep a low grade i could fail this class i just NEED to pass this i have to watch my siblings in and after class and maintain good grades just someone PLEASE HELP ME
I totally understand that was exactly how my life was what are the homework problems?
-3-2(5-9)
What is the answer
5 would be the answer i believe