Answer:
0.0021 in scientific notation is [tex]\mathbf{2.1 x 10 ^ {-3}}[/tex]
Step-by-step explanation:
We need to write 0.0021 in scientific notation.
Scientific Notation: A number expressed in scientific notation is written when numbers between 1 to 10 are multiplied by a power of 10.
In the given example 0.0021 our decimal will be shifted to the right 3 digits and the power will be negative 3 (-3)
So, 0.0021 in scientific notation is [tex]\mathbf{2.1 x 10 ^ {-3}}[/tex]
What is the Slope of this equation?
y=-6/5x-5
Answer:
Slope = - 6/5
Step-by-step explanation:
Step 1:
y = mx + b Slope Intercept Form
Step 2:
m = Slope
Step 3:
y = - 6/5x - 5 Equation
Answer:
Slope = - 6/5
Hope This Helps :)
Answer:
m=-6/5; the slope is -6/5
Step-by-step explanation:
Here is an easy way to define slope:
y=mx+b
m is slope and b is the y-intercept
Remember, you just have to find what is multiplied by x in a slope-intercept equation, and that is the slope.
Tyler wants to buy a new television that costs $312. He has already saved $96. He plans to save $24 per week over the next few weeks. Which shows the number of weeks Tyler will need to save to be able to buy the television?
A number line going from negative 20 to positive 20. A point is at 3.
A number line going from negative 20 to positive 20. A point is at 9.
A number line going from negative 20 to positive 20. A point is at 13.
A number line going from negative 20 to positive 20. A point is at 17.
Answer:
a
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
Alberto is painting a square canvas. What is the length of each side?
this is for uu!! HDHSHJSKSS
Answer:
oh boi its for me? yay
Step-by-step explanation:
1) Which ratio is expressed as a unit rate?
A) 15 miles/5gal
B) $8.00/hr
C) 120min/3hr
D) $4.00/per package
Answer:
D.
Step-by-step explanation:
Expressing something by a unit rate means to express a value per single item. Hence, only D fits (per package, meaning per 1 package.)
Hope this helped!
Answer:
D
Step-by-step explanation:
per package, meaning per 1 package.
-(5n-9)+3n=-2(5n-20)
what is n?
Answer:
[tex]n=3.875[/tex]
Step-by-step explanation:
First, we can expand the brackets:
[tex]-(5n-9)+3n=-2(5n-20)[/tex] (given)
[tex]-5n+9+3n=-10n+40[/tex]
[tex]-2n+9=-10n+40[/tex] (combine like-terms)
[tex]8n=31[/tex]
[tex]n=3.875[/tex]
Hope this helps :)
Answer:
answer and explanation in the pics above
hope it helps
A car rental agency advertised renting a car for $28.95 per day and $0.27 per mile. If Greg rents this car for 4 days, how many whole miles can he drive on a $150 budget?
Answer:
126 miles
Step-by-step explanation:
28.95*4=115.8
150-115.8=34.2
34.2/0.27=126
Help me with this please.. but when you do please explain what proportional relationships please!
Answer:
x column- 1.25, 7.5, 45.
y column- 5, 30, 180.
Step-by-step explanation:
Okay, to start off, we need to find how 1.25 got to 5. If we divide it, we get 4. So we go to 7.5 and multiply it by 4, since that seems to be the relationship between x and y. 7.5x4=30, which is an answer. So the second spot in the y column is where 30 goes. Now we figure out the relationship between the two numbers in the x column so we can figure out the missing one. When you divide 7.5 by 1.25, you get 6. So, if 1.25x6 makes the next number in the x column, 7.5x6 should make the missing number. 7.5x6 is 45, so the missing number in the x column is 45. Now we go back and multiply 45 by 4, which gets us 180.
On Monday, I bought 2 shirts and 6 pairs of pants for a total cost of $11. On
Tuesday, I bought 5 shirts and 8 pairs of pants for a total cost of $18.75. Can you
find the price of each item?
Step-by-step explanation:
Step one:
given data
let the shirts be x
and the pants be y
Required
the number of shirts and pants
the systems of the equation for the situation is
2x+6y=11-------------1
5x+8y=18.75-------2
2x+6y=11-------------1X 5
5x+8y=18.75-------2 X2
10x+30y=55-------------1
-10x+16y=37.5-------2
0x+14y=-17.5
divide both sides by 14
y=17.5/14
y=1.25
pants= $1.25
put y=2.32 in eqn 1 2x+6y=11
2x+6(1.25)=11
2x+7.5=11
2x=11-7.5
2x=3.5
x=3.5/2
x=$1.75
Shirts = $1.75
594 7 25 +89 37 100 please help solve and this is a decimal problem
Answer.
594 7/25 converted into decimal is 594.28, 89 37/100 converts to 89.37. Add 594.28 and 89.37 together and we get out final answer of 683.65. Convert that back into fraction form and we get (683 13/20)
Step-by-step explanation:
What is the slope of the line: 7x+2y=5
Answer:
-7/2
Step-by-step explanation:
There is a box of colored marbles on the counter top. There are 24 blue, 16 green, and 6 red. What is the ratio of red to blue marbles? SIMPLIFY, if possible.
Answer:
24:6
Step-by-step explanation:
Does anyone know the correct choice for this question? If its correct ill mark you as the best answer choice! Please!
Answer:
F
Step-by-step explanation:
The slopes of H and J are 2/3 so those cannot be the correct answer. F will pass through the point (3,2). Hope this helps!
John writes the proof below to show that the sum of the angles in a triangle is equal to 180°. Which of these reasons would John NOT use in his proof? A. The sum of the angles on one side of a straight line is 180°. B. If a statement about a is true and a=b, the statement formed by replacing a with b is also true. C. When two parallel lines are cut by a transversal, the resulting alternate interior angles are congruent. D. When two parallel lines are cut by a transversal, the resulting alternate exterior angles are congruent. G-CO.10 2. In triangle ABC, ∠ = ∠ = . Which of these can be proved using the triangle s
Answer:
The correct option is;
D. When two parallel lines are cut by a transversal, the resulting alternate exterior angles are congruent
Step-by-step explanation:
In the proof to show that the sum of the angles in a triangle = 180°, we have;
For a triangle located between two parallel lines, such that the base of the triangle coincides with one of the parallel lines, we have;
The angle formed by one of the base angles and the adjacent side of the extension = 180° by the sum of angles on a straight line
From the attached diagram of a triangle between two parallel lines, we have;
∠e + ∠b = 180° by the sum of angles on a straight line postulate
∠e = ∠a + ∠d by alternate interior angles postulate
∠c = ∠d by alternate interior angles postulate
∴ ∠e = ∠a + ∠c by substitution property
∴ ∠e + ∠b = ∠a + ∠c + ∠b = 180° by substitution property
Therefore, the sum of the interior angles of a triangle, ∠a + ∠c + ∠b = 180°.
Pls help what do I pout ASAP PLS
Answer:
Assume flour = x and sugar = y
8x = 4y
2x = y. Main equation
So when y is 12.
2x= 12
X = 6
Thank you and please rate me as brainliest as it will help me to level up
A washer and a dryer cost $834 combined. The washer costs $84 more than the dryer. What is the cost of the dryer?
Answer:
The dryer cost $375
Step-by-step explanation:
834/2 = 417
84/2 = 42
417 - 42 = 375
834 - 375 = 459
459 - 84 = 375
PROOF: 417 - 375 = 42 then double that answer to get 84
May I have brainliest please? :)
PLEASE HELP!!!!!!!!!
Answer:
23.9
Step-by-step explanation:
it just is so right
if you got to flvs and are in 8th grade plsss lmk
Answer:
im not but thxxxx for points
Step-by-step explanation:
Answer:
meee help me w the module 4 DBA
Step-by-step explanation:
PLZZZ HELP 50 POINTS but answer honestly not just for points or i will report you
Answer:
8, 3, -2, -7
Step-by-step explanation:
To solve you have to multiply -5 by whatever number is in the x column of the table then add 3. For example, -5*0 = 0, then 0+3 = 3 and that's your answer(s).
Answer: In order from top to bottom:
9
3
-2
-7
Step-by-step explanation:
To find the y u would replace 'x' in the equation with one of the x's in the colom.
For example:
y = -5 (-1) + 3
= 6 + 3
= 9
REMEBER = A negative times a negative is a positve.
96-81=
wfcdguuaabesb4v,g,hbv
Answer:
15
Step-by-step explanation:
Answer:
96-81=15 lol
hope this helps
Step-by-step explanation:
The basketball team spends 20 minutes running laps and at least 15 minutes discussing plays. Practice lasts one hour and 45 minutes. Write an inequality to represent the amount of time to work on other drills. Just type in the final answer. Let: x=other drills
Answer:
x ≤ 75
Step-by-step explanation:
The computation of the inequality function is as follows:
Let us assume the remaining time left for other drills be x
Given that the team spends 20 minutes for running laps
And minimum of 15 minutes for discussing plays
Also practicing for last one hour and 45 minutes
Now as we know that
1 hour = 60 minutes
So total minutes would be
= 60 + 45
= 105 minutes
Total minutes spend by the team is
= 20 + 15
= 35 minutes
So now the remaining time left is
x ≤ 105 - 35
x ≤ 75
A baseball is hit from home plate at an initial velocity of 32 feet per second from a height of 5.5 feet. How long will it take for the ball to descend to an outfielder's glove 6 feet off the ground?
Answer:
t=0.19
Step-by-step explanation:
Velocity is distance per tine
V=s/t
32=5.5/t
t= 0.72
To know How long will it take for the ball to descend to an outfielder's glove 6 feet off the ground?
V=s/t
32=6/t
t=0.19
What value of R makes r/ -11 = (-3) true
Answer:
The value of [tex]r=33[/tex] which makes the equation true.
Step-by-step explanation:
Given the equation
[tex]\frac{r}{-11}=-3[/tex]
We have to find the value of r for which the equation must be true.
solving the equation
[tex]\frac{r}{-11}=-3[/tex]
Multiply both sides by -11
[tex]\frac{r\left(-11\right)}{-11}=\left(-3\right)\left(-11\right)[/tex]
[tex]r=33[/tex]
Therefore, the value of [tex]r=33[/tex] which makes the equation true.
VERIFICATION:
Putting [tex]r=33[/tex] in the equation
[tex]\frac{r}{-11}=-3[/tex]
[tex]\frac{33}{-11}=-3[/tex]
[tex]-3=-3[/tex] ∵ [tex]\frac{33}{-11}=-3[/tex]
L.H.S = R.H.S
Therefore, the value of [tex]r=33[/tex] which makes the equation true.
I need to solve the equation and then graph the result
Answer:
[tex]p<-18[/tex]
graph:
find -18, and draw an arrow going right
If n – 8 = 2, then n =
Answer:
10
Step-by-step explanation:
If,n-8=2
Then,
n=2+8
n=10
welppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answer:
4 1/2
Step-by-step explanation:
Answer:
Convert 1 1/2 into a regular fraction
Because the following quantity, 1 1/2 is a mixed fraction
1 1/2 = 3/2
According to the question
The recipe for one bath call for 3/2 cups of flour
1 batch needs 3/2 cups of flour
Multiply 3 to both of the sides
3x1 batch needs 3 times 3/2 cups of flour
3 batch would need 4 1/2
B is your answer
A population of bees is decreasing. The population in a particular region this year is 1250. After year 1, it is estimated that the population will be 1000. After 2 years it is estimated that the population will be 800. How many years will it take for the bee to be below 100?
Answer:
1250 => 250 ( subtracted from the balance population )
1000 => 300
800 => 350
450. => 400
50.
So it will take around 5 years I think to be below 100.
Thank you and please rate me as brainliest as it will help me to level up
ILL GIVE BRAINLIST
Explain the power of products property and give an example.
Answer:
This is an example of the product of powers property tells us that when you multiply powers with the same base you just have to add the exponents.
Step-by-step explanation:
A car is traveling at a steady speed. It travels 1 3/4 miles in 2 1/3 minutes. How far will it travel in 45 minutes? In 1 hour?
Answer:
33.75 miles in 45 minutes,
45 miles in an hour
Step-by-step explanation:
45 minutes: 2 1/3= 7/3 ---> 7/3*3=7,
1 3/4= 7/4 ---> 7/4*3=5.25
car travels 5.25 miles for every 7 minutes,
45/7*5.25= 33.75 miles
1 hour (60 minutes):
using that the car travels 5.25 miles for every 7 minutes,
60/7*5.25= 45 miles
Hope that makes sense!
Which graphs show functions with direct variation? Select three options
Parking Garage Rates
Answer:
B C E
Step-by-step explanation:
A coordinate plane showing Parking Garage Rates with Time in hours on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2.4) and (5, 4).
What is graph?A graph is a visual representation of data or a mathematical function, which is often used to show the relationship between variables or to illustrate trends over time.
In the options given, the three graphs that show functions with direct variation are represented by straight lines passing through the origin, indicating that there is a direct relationship between the two variables. Specifically:
A coordinate plane showing Parking Garage Rates with Time in hours on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2.4) and (5, 4).A coordinate plane showing Cost of Cinnamons with Quantity in ounces on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 0.3) and (5, 1.5).A coordinate plane showing Ferry Ride Cost with Number of Persons on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2) and (5, 8).Thus, these graphs show functions with direct variation.
For more details regarding graph, visit:
https://brainly.com/question/17267403
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Your question seems incomplete, the probable complete question is:
Which graphs show functions with direct variation? Select three options. A coordinate plane showing Parking Garage Rates with Time in hours on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2.4) and (5, 4). A coordinate plane showing Cost of Cinnamons with Quantity in ounces on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 0.3) and (5, 1.5). A coordinate plane showing Breakfast Cost with Number of Meals on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 1.2) and (5, 6). A coordinate plane showing Ferry Ride Cost with Number of Persons on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2) and (5, 8). A coordinate plane showing Ferry Ride Cost with Number of Persons on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2) and (5, 8).