25x² - 36x +9, when x = 2
(25 × 2)² - (36 × 2) + 9
50² - 72 + 9
2 500 - 72 + 9
using BODMAS
2 500 + 9 - 72
2 509 - 72
= 2 437
Answer:
Step-by-step explanation:
25(2)^2-36(2)+9
25(4)-72+9
100-72+9
28+9
37
pleeeeeeeeeeaaaaaassssseeee help
Answer:
with wut
Step-by-step explanation:
In hours 3 3/8, John reads 4 1/2 chapters.
What is the unit rate in chapters per hour?
Write your answer as a fraction or a mixed number in simplest form.
Answer:
1 1/3 chapters per hour
Step-by-step explanation:
eplaination is in the picture
Which does not represent an integer?
Question 1 options:
−182
45
9–√
0
Answer:
9 minus a square root is the answer I think...
Step-by-step explanation:
Integers are all positive&negative numbers + 0
Plzzzz Help me 50 points!!!!
7) In an old episode of the TV program McGyver, a planeload of gold was being transported from the SovietUnion to the United States during WWU. The place crashed in the Arctic region. To prevent the "badguys" from getting the gold, the pilot and copilot transferred the gold into a cave by stacking it on a door
of the crashed plane and dragging the "sled" into the cave. You were led to believe in the episode that
they accomplished the move in one trip. The gold was stacked neatly in the shape of a cube, measuring
about 1 meter on a side. Calculate the weight, in tons, of one cubic meter of gold. The density of gold is
19.4 g/cc. Would it have been possible for the two pilots to accomplish this feat? Would a plane of WWII
vintage be able to carry this much gold? (cc = cubic centimeter, 1cm = 1mL)
Here we need to remember that:
density = mass/volume
Only by using this equation, we will find that the mass of gold is 19,400 kg
In this case, we know that the gold is in the shape of a cube with side length of one meter.
Remember that for a cube of side length L, the volume is:
V = L^3
Then in this case, the volume of the cube of gold will be:
V = (1m)^3 = 1m^3
And we know that the density of the gold is:
density = 19.4 g/cc
cc = cm^3
density = 19.4 g/cm^3
Notice that we have different units of volume, so we would want to write the volume in cm^3
We know that:
1m^3 = (1×10^6)cm^3
Then the volume of the cube of gold is just:
V = (1×10^6)cm^3 = 1,000,000 cm^3
Now let's return to the density equation:
density = mass/volume
Solving for the mass, we get:
density×volume = mass
Now we can replace the two things in the left side:
(19.4 g/cm^3)×(1,000,000 cm^3) = mass = 19,400,000 g
Now remember that:
1000k = 1kg
Then we can rewrite:
mass = 19,400,000 g = (19,400,000/1000)kg = 19,400 kg
So the cube of gold has a mass of 19,400 kg, there is no way that two persons could carry this much gold into a cave.
if you want to learn more, you can read:
https://brainly.com/question/18320053
1. Give another name for liner r.
2. Name the intersection of lines r and s.
3. Name three collinear points.
4. Give another name for plane N.
Answer:
3
Step-by-step explanation:
Emily received a check from her grandmother for $40.00 for her birthday. To cash the check, her bank requires her to deposit the funds into her account. Since she wanted to spend the money that afternoon, she withdrew $40.00 in the same transaction. Jacoby went on a hiking trip on the Rocky Bend Loop. Starting at an elevation of 1,200 feet, he hiked up the eastern trail leading to a change in elevation of 782 feet to get to the campsite. The next day he hiked down the western trail which had a change in elevation of 782 feet to get back to his car. During the top of the fourth inning of a baseball game, the Ravens scored three runs. During the bottom of the fourth inning, the Raiders scored five runs to tie the game. Marcus runs a sightseeing service in the Appalachian Mountains. The first leg of the tour is a 16.2-mile horseback ride from the stables up the side of a mountain. The second leg of the tour is a 20.6-mile four-wheeler ride taking a different path down the mountain to the customer parking lot. A carbon 12 atom has six neutrons, six protons, and six electrons. The neutrons have no charge, each proton has a positive charge, and each electron has a negative charge of the same magnitude. To start the second half of the basketball game, the Eagles made a jump shot for two points. The Bulldogs then took the ball down the court on a fast break and made a layup for two points.
Answer:
pretty sure ypu arent suppose to send your entire math homework like this
Please help work is due in a couple of minutes
Step-by-step explanation:
3m is the answer.
hope it helps
Answer:
3 meters
Step-by-step explanation:
The train starts at (0, 0) and ends at (6, 3). So the train travels in 6 seconds (6 - 0) 3 meters (3 - 0).
See your levels
A rectangular vegetable patch is 7 meters long and 5 meters wide. What is its area?
7*5=35 its simple though
Can someone tell me the asnwer to this ASAP?
Answer:
[tex]2\sqrt{2} \\2[/tex]
Step-by-step explanation:
[tex]\sqrt{8} = \sqrt{4*2} = \sqrt{4} * \sqrt{2} = 2*\sqrt{2} = 2\sqrt{2} \\\\\sqrt[3]{8} = \sqrt{2*2*2} = 2[/tex]
Answer:
I noticed that [tex]\sqrt{8\\}[/tex] does not have 3 on it like the second one. And i wonder that the answers would be different from each other
[tex]2\sqrt{2}[/tex]
2
Solve the equation cos7θ = sin5θ where 0<θ<90°
Answer:
You can get approximate values by drawing a graph,
Step-by-step explanation:
Which one describes the algebraic expression for the phrase, "four times the quantity of a number increased by 8 is
equal to 10 more than the number"?
O 4n + 8 = n - 10
O 4(n + 8) = n + 10
O 8n + 4 = 10n
O 8(n + 10) = n + 10
Answer:
4(n + 8) = n + 10[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
A truck can be rented from Company A for $120 a day plus $0.20 per mile. Company B charges $60 a day plus $0.40 per mile to rent the same truck. Find the number of miles in a day at which the rentals cost for company A and company B are the same.
please help..
Answer:
12 miles in a day.
Step-by-step explanation:
Variable x = number of miles
Company A: 120 + 0.20x
Company B: 60 + 0.40x
Set up an equation:
120 + 0.20x = 60 + 0.40x
60 + 0.20x = 0.40x
60 = 0.20x
12 = x
10-3•2/1+1 what is the answer???
Answer:
5
Step-by-step explanation:
PEMDAS ( or for whatever one you do... )
You read it from left to right. So, whatever comes first you do then you continue.
Multiplication came BEFORE division in this case.
3 x 2 = 6
Then Division.
You had gotten 6 FROM 3 x 2. Divide that TOTAL with 1.
6/1 = 6
[ Then subtraction is infront of addition. It may seem confusing but regardless how the letters are formatted in "PEMDAS" you ALWAYS read from left to right. "PEMDAS" has Addition infront of Subtraction but in this case, subtraction goes first because it's infront of the addition. ]
Then you subtract.
You had gotten 6 FROM 3x2/1
Subtract that TOTAL with 10. 10 - 6
What is 10 - 6? 4 because 10 is LARGER than 6
Then you add.
You got the TOTAL of 4 FROM 10-3x2/1.
Add that TOTAL with 1.
4 + 1 = 5.
The answer should be 5 but correct me If I'm wrong.
Identify as a monomial, binomial, or trinomial. x^3Y^2Z
Answer: Monomial
Step-by-step explanation:
2ax/3y is a monomial in three variables a, x and y.
PJ, A term is defined as a number, variable, or some combination of numbers and/or variables being multiplied together. Even though 2x has two parts (2 and x), since they are being multiplied together, 2x is considered a single term (a monomial expression).Mar 18, 2014
Answer:
monomial
Step-by-step explanation:
because it has only 1 term
Here a graph I made, any numbers that have LCF or a GCF of 140 let me know
Second to last questions Pls help Thx!. :)
Answer: this is realy unclear but ill try my best man 1st,bot C . 2nd,bot A . 3rd,bot D, last or 4th, bot c
Step-by-step explanation:
the highest number is 38 clicks in 4.5 seconds so ill try to multiply or do more math to get the answer 0.5 x 9 adds up to 4.5 so ill do 4 x 9 is 36
2x2.25 gets you 4.5 seconds so 2.25 x 15 = 33.75 and bot b i dont even wanna do that math so 1st goes to bot c 2nd goes to bot A 3rd goes to bot d and last goes to bot b
Mike sold H hats. Nate sold three times as many hats as Mike. Write an expression for the number of hats Nate sold.
answer:
h3
Step-by-step explanation:
H raise to power 3
( x+y+z )² + 2( x+y+z ) +1
Answer:
[tex](x+y+z+1 {)}^{2} [/tex]
Step-by-step explanation:
[tex](x+y+z {)}^{2} +2(x+y+z)+1[/tex]
[tex](x+y+z+1 {)}^{2} [/tex]
Hope it is helpful....Here is your answer hope this helps you.
Please help me I’m struggling! I’ll give a brainliest!!
Collinear points lie on the same line. Find the value of k for which the following points are collinear: (k,3), (-3,2), (-1,1)
Answer:
k=-5
Step-by-step explanation:
For the points to be collinear any two pair must have the same slope
We find the slope of the 2nd and 3rd points
=1-2/-1--3
=-1/2
Now finding the slope of the 1st and any other point say point 3
1-3/-1-k=-½
-2/-1-k=-½
-4=-1(-1-k)
-4=1+k
k=-4-1
k=-5
PROOF
if the first point is (-5,3)
slope of point 1 and 2
=2-3/-3--5
=-1/2
Find all real solutions to w^2-10w+1
In simplest form
Answer:
you can solve it using quadratic formula
w=5-2 √6 or w=5+ 2√6
c) A bus completes its journey in 14 hours with an average speed of 40 km per hour. How long does the bus take to complete the journey if its average speed is increased to 56 km per hour?
Explanation:
Compute the distance for the original speed and time
distance = rate*time
distance = (40 kph)*(14 hrs)
distance = 560 km
If we increase the rate or speed to 56 kph, then,
distance = rate*time
560 km = (56 kph)*x
560 = 56x
56x = 560
x = 560/56
x = 10
The bus will travel for 10 hours if its speed is increased to 56 km per hour.
Answer:
A bus takes 4.5 hours to complete a complete a journey at a speed of 40km/hr
So, in this case, We will find the distance first because the distance is constant.
distance-speed*time
distance=40*4.5
distance=180km
distance=180km
Now, we find the time to cover the distance at the speed of 45km/hr
time distance/speed
time=180/45
time=4hrs
Therefore, the answer is 4hrs
Hope it helps you.Have a nice day!!Kareem runs 8 miles in 84 minutes. At the same rate, how many minutes would he take to run 6 miles?
He would take 63minutes to run 6 miles
Answer:
TIME TAKEN =63minutes or 1 h 3 min.
Which numbers can go into 216 with no remainder? Select all that apply. 6 5 9 7
Answer:
They are 6 and 9
Step-by-step explanation:
Answer:
Among the given numbers, 6 and 9 will go to 216 without leaving any remainder.
Hope it helps you
Help help help me please
Answer:
6x - 4
Step-by-step explanation:
Cross out the 3 in the denominator and the 9, which simplifies to 2 times 3x, which is 6x. For the second part, cross out 3 in the denominator and -6, which becomes 2 times (-2), which is -4.
Graham sold 6 magazines less than double what Adrianne sold, which of the following expressions represents graham’s sales? ( 9th grade, Algebra 1 )
Answer:
The expression that represents Graham's sales is: 2a - 6
15 - (-8) answer if you could please and thank you
Hi there!
»»————- ★ ————-««
I believe your answer is:
23
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
[tex]\boxed{\text{Calculating the answer...}}\\\\15-(-8)\\-----------\\\rightarrow 15-1(-8)\\\\\rightarrow 15 + 8 \\\\\rightarrow \boxed{23}[/tex]
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
The complete factorization of 12x² + 4x - 8 is:
(A) (3x + 1)(4x – 8)
(B) (4x + 4)(3x + 2)
(C) 4(3x² + x - 2)
(D) 4(3x − 2)(x + 1)
(E) 4(3x + 2)(x - 1)
Answer:
D is the correct answer.
The track team needs new uniforms. the students plan to sell candies. the students find three companies for 44.80. company c charges
Answer: Answer:
Company C
Step-by-step explanation:
Company A sells 12 tigers for $33.24.
Cost per tiger = $33.34 / 12
= $2.78
Company B sells 16 tigers for $44.80. Company
Cost per tiger = $44.80 / 16
= $2.8
C charges $41.10 for 15 tigers.
Cost per tiger = $41.10 / 15
= $2.74
The company that has the best buy is company C that charges $2.74 per tiger
Brainliest please
by Find the value of 5% of 300
Answer:
15
Step-by-step explanation:
5/100*300
100 can be cut for 100 and 300
so 5/1*3
ans 15
Answer:
Percentage Calculator: What is 5 percent of 300? = 15.
Hope it helps you.