Hi there! Your answer to this question would be 90%..
Step By Step Explanation:
So we know that 100% is the average grade for an correct for an entire test.
But how can we find 90%?
Let think like this. 10=100%.
Well if 10 is 100% then 9 would be 90% since every 1 of 10 is 10%.
Final Result: 90%
What is tan K? help pleasee
8/15
Hope this helps!
Answer:
[tex]\frac{8}{15}[/tex]
Step-by-step explanation:
[tex]Tan(k)=\frac{24}{45} =\frac{8}{15}[/tex]
Please answer correctly for heart and maybe brainiest
Here is a diagram of a person standing next to a tree.
The diagram shows two centimeter rulers.
The tree and the person are drawn to the same scale.
The person is approximately 1.65 m tall.
Using the scale diagram, estimate the height of the tree in meters
Answer:
9.9 m
Step-by-step explanation:
According to the scale the person is 2 cm tall, and the tree is 12 cm tall.
So we know that the tree is 6 times taller than the person because,
12 cm = 6 x 2 cm
The actual height of the person is 1.65 m.
Since we know that the tree is 6 times taller than the person, we can find the height of the tree to be
6 x 1.65 m = 9.9 m
Which algebraic expression matches the word phrase “A number minus seven is two”?
Group of answer choices
7 - x = 2
x - 7 = 2
x - 2 = 7
x = 7 - 2
Answer:
x - 7 = 2
Step-by-step explanation:
A number = x
minus seven = - 7
is two = "= 2 "
How many times smaller will a number become if is it decreased by 20%?
Answer:
Step-by-step explanation:
I'm unsure why my answer was deleted, randomly deleted a thoroughly explained answer.
20% is 20/100, 1/5, or 0.2
The number will decrease by a factor of 5.
Answer:1.25
Step-by-step explanation: for example 100 decreased by 20 percent is 80 so 100 divided by 80 is 1.25
Which figure has the same area as the parallelogram?
3x - 2 y = 10 and 7 x + 2 y = 30
Answer:
Your answer is (4,1)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Hoped this helped!
brainly, please?
2) f(x) = x2 - 6x +11
Degree:
Lead Coefficient:
End behavior:
Answer:
13 - 6 x
Step-by-step explanation:
can anyone help plss
Answer:
what do u need help with
Step-by-step explanation:
Find the measure of Angel 1 and 2.
Maliki is building a ramp with a base of 4 feet and a vertical height of 2 feet. What is the length of the ramp?
Answer:
2√5
Step-by-step explanation:
By applying Pythagoras (hypotenuse)^2=(Base)^2 +(Height)^2
The length of the ramp is approximately 4.47 feet.
What is the Pythagorean theorem?Pythagoras's theorem states that in a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.
If the base of the ramp is 4 feet and the vertical height is 2 feet, we can use the Pythagorean theorem to find the length of the ramp:
ramp length² = base² + height²
ramp length² = 4² + 2²
ramp length² = 16 + 4
ramp length² = 20
Taking the square root of both sides, we get:
ramp length = √20
Simplifying the square root of 20, we get:
ramp length ≈ 4.47 feet
Therefore, the length of the ramp is approximately 4.47 feet.
Learn more about Pythagoras's theorem here:
brainly.com/question/343682
#SPJ3
What slope Line
pass through( 14, 4)( 21, 6 )
Answer:
2/7
Step-by-step explanation:
Slope of the line
[tex] = \frac{6 - 4}{21 - 14} \\ \\ = \frac{2}{7} [/tex]
2. The time, t, for am ice cube to melt. is inversely proportional to the temperature, T, of the water the ice cube is placed. If it takes an ice cube 2 minutes to melt in 750F water, how long will it take an ice cube of the same size to melt in 800F water?
Answer:
21 mins
Step-by-step explanation:
9+10=21
On average, Haley is able to read 4 5/6 Chapters in the her book each week . How many weeks will it take Haley to read 9 2/3 Chapters
Answer:
2 weeks
Step-by-step explanation:
y = mx + b
y = total number of chapters read = [tex]9\frac{2}{3}[/tex]
m = number of chapters read per week = [tex]4\frac{5}{6}[/tex]
x = number of weeks = what we're solving for
b is not needed to find this solution
[tex]9\frac{2}{3}[/tex] = [tex]4\frac{5}{6}[/tex] x divide [tex]4\frac{5}{6}[/tex] from both sides
x = 2 weeks
Odette solved this problem:
A piggy bank has nickles and dimes totaling $1.15. If the bank contains exactly 15
coins, how many of each coin are in the bank?
Complete the statement about Odette's solution.
Answer:
In Odette's solution, 7 is the number of
nickels and 8 is the number of dimes
Which factor could be multiplied by the given function so that their product causes the graph of f(x) to decrease as x approaches negative infinity?
[tex]f(x)=(2x^2 + 5)(x - 7)[/tex]
Select all that apply.
• -3
• 0.2x
• 5x²
• [tex]-\frac{1}{2}(x + 8)[/tex]
• 4(2x - 7)
Answer:
5x²
-1/2( x+8)
Step-by-step explanation:
The dominant term is 2x^2 *x or 2x^3
We want to know what happens when x goes to negative ∞
2 ( -∞) ^3 → 2 * (-∞) → -∞
As long as we multiply by a positive number, we will still be approaching negative infinity ( or decreasing)
-3 is negative
.2x is negative when x approaches negative infinity
.5 x^2 = .5( -∞)^2 = 5 ( ∞) = ∞ which is positive
-1/2 x is the dominant term = -1/2(- ∞) = ∞ which is positive
4(2x) is the dominant term = 8(- ∞) = - ∞ which is negative
Answer:
3rd and 4th Choices.
[tex]\displaystyle 5x^2\text{ and } -\frac{1}{2}(x+8)[/tex]
Step-by-step explanation:
We are given the function:
[tex]f(x)=(2x^2+5)(x-7)[/tex]
And we want to determine the factor(s) that we can multiply to the above function that will cause the graph of f to decrease as x approaches negative infinity.
We can see that the dominant term will be:
[tex]2x^2(x)=2x^3[/tex]
Thus:
[tex]2(-\infty)^3\Rightarrow -\infty[/tex]
It is already decreasing (shifting towards negative infinity) as x approaches negative infinity.
In order to preserve this, then, the factors must be positive as x approaches negative infinity.
The first factor is -3.
-3 is always negative, so it will make f increase.
The second factor is [tex]0.2x[/tex].
[tex]0.2(-\infty)\Rightarrow -\infty[/tex]
This will also make f increase.
The third factor is:
[tex]5(\infty)^2\Rightarrow \infty[/tex]
This is positive, so it will allow f to remain decreasing as x approaches negative infinity.
The fourth factor is:
[tex]\displaystyle -\frac{1}{2}(-\infty+8)\Rightarrow -\frac{1}{2}(-\infty)\Rightarrow \infty[/tex]
This is also positive, so it will also allow f to remain decreasing.
Lastly, the fifth factor is:
[tex]4(2(-\infty)-7)\Rightarrow 4(-\infty)\Rightarrow -\infty[/tex]
This is negative, so it will make f increasing.
Therefore, our answers are the third and fourth choices.
A taxi driver had 31 fares to and from the airport last Monday. The price for a ride to the airport is $4.50, and the price for a ride from the airport is $11. The driver collected a total of $289 for the day.
Answer:
(8,23)
Step-by-step explanation:
x+y=31
4.5x + 11y = 289
x = 31 -y
4.5(31 - y) + 11y = 289
139.5 - 4.5y + 11y = 289
6.5y = 149.5
y = 23
x = 31 - 23 = 8
The ordered pair, (x, y) = (8, 23).
What is an ordered pair?
An ordered pair exists as a composition of the x coordinate (abscissa) and the y coordinate (ordinate), containing two values noted in a fixed order within parentheses.
Given: A taxi driver had 31 fares to and from the airport last Monday. The price for a ride to the airport exists $4.50, and the price for a ride from the airport exists $11. The driver collected a total of $289 for the day.
x + y = 31........(1)
4.5x + 11y = 289 ........(2)
From (1), we get
x + y = 31
x = 31 - y
Substitute the value of x in (2), and we get
4.5x + 11y = 289
4.5(31 - y) + 11y = 289
Simplifying the above equation, we get
139.5 - 4.5y + 11y = 289
6.5y = 149.5
y = 23
substitute the value of y, in (1) then we get
x = 31 - y
x = 31 - 23 = 8
The value of x = 8 and y = 23.
Therefore, the ordered pair, (x, y) = (8, 23).
Complete question
A taxi driver had 31 fares to and from the airport last Monday. The price for a ride to the airport is $4.50, and the price for a ride from the airport is $11. The driver collected a total of $289 for the day. Let 2 represent the number of trips to the airport and y represent the number of trips from the airport. Write the ordered pair, (x, y) that represents the situation.
please help !!!! The leg of a right triangle is 2 units and the hypotenuse is 5 units. What is the length, in units, of the other leg of the triangle?
3
Square root of 29
Square root of 21
7
Answer:
[tex]\sqrt{21}[/tex]
Step-by-step explanation:
Use the pythagorean theoreom, a^2+b^2=c^2.
We know the hypontenuse and one of the sdes
a^2+2^2=5^2
a^2+4=25
subract four from both sides to isolate variable
a^2=21
square root both sides and you have the answer of sq root 21!
Edit: the answer for your next question is the last one b/c it satisfies the Pythagorean Theorem
PLZ HELP!!
What is the ratio of a:b, knowing that a-b/a+b=3/5
Answer:
1 : 4
Step-by-step explanation:
5(a - b) = 3(a + b) = 5a - 5b = 3a + 3b
2a - 5b = 3b
2a = 8b
2/8 is 1/4 simplified
The letters of "BEARS" should be evenly spaced across a 60-inch-wide banner, with no margins. Each letter is 8 inches wide. How many inches (x) should exist between each pair of letters?
Answer:
The answer is 10 inches, because first we multiply the letters and how wide they are then subtract that from 60 then divide that by our spaces (4)
Step-by-step explanation:
PLEASE HELP ASAP, I ONLY HAVE AN HOUR!!!!!!!! HURRY!!!!!!!!!
If the sum of five consecutive odd integers is 405, what is the smallest of the five integers?
65 as smallest odd number possible.
Estimate the quotient of 1246 divided by 4
Answer:
623/2
Step-by-step explanation:
Answer:
It’s about 311.5
A community college professor is interested in determining the relationship between the number of posts students make on Schoology and their respective grades. He planned to correlate the results from a sample from all his classes, however, due to time constraints, he decided to sample only from students with high grades. As his statistical consultant, state whether or not you support his plans and why.
Answer:
no
Step-by-step explanation:
(WILL GIVE BRAINLIEST PLS HELP) Marco is saving for tuition costs at a state university. He deposited $8500 in a 4-year certificate of deposit that earns 7.25% per year. What equation represents this scenario?
f(x)=4*7.25^x
f(x)=8500*4^x
f(x)=1.0725*8500^x
f(x)=8500*1.0725^x
Answer:
($8500)(0.0725)(4)
The expression f(x) = 8500*0.0725*x represents the b best scenario. None of them are correct.
Equation that fit the scenario of He deposited $8500 in a 4-year certificate of deposit that earns 7.25% per year, to determine.
Equation are link of variables that contain equal sign.
Here,
He deposited $8500 in a 4-year certificate,
f(x) = 8500
Earns 7.25% per year,
f(x) = 8500*0.0725*4
Thus, the expression f(x) = 8500*0.0725*x represents the b best scenario.
Learn more about equation here:
https://brainly.com/question/10413253
#SPJ2
14 less then 3 times a number is 31 written out and solved
Answer:
3x-14=31 ,= 15
Step-by-step explanation:
3x= 45
x= 45/3
x= 15
hope it helps
f(x) = -2x + 2
g(x) = 3x^2– 3x
Find f (4) and g(-3)
helpp please i would appreciate it
Answer:
f(4) = -6, g(-3) = 36
Step-by-step explanation:
To find f(#) or g(#), plug the number into each x of the equation.
f(x) = -2x + 2
f(4) = -2(4) + 2
Simplify the parentheses by multiplying.
f(4) = -8 + 2
Add.
f(4) = -6
g(x) = 3x² - 3x
g(-3) = 3(-3)² - 3(-3)
Simplify the exponent first.
g(-3) = 3(9) - 3(-3)
Simplify the parentheses by multiplying.
g(-3) = 27 + 9
Add.
g(-3) = 36
13 as prime or composite
Answer:
prime
gggghfsssddfdfv ut b dc t
Answer:
the number 13 is a prime number
5 Victor knows that 2 + 7 = 7+2 and 2•7= 7•2
He wonders if 2^7= 7^2
Fill in the blanks to explain whether 2^7= 7^2
To write 2^7as a repeated multiplication product, write
When 2^7is written as a repeated multiplication product, the only factor
To write 7^2 as a repeated multiplication product,
is
write
When 7^2 is written as a repeated multiplication product, the only factor
is
Check for common factors. Since 27 and 72 have
common
factor(s), 2
72
Answer:
2^7 ≠ 7^2
Step-by-step explanation:
2^7 = 2 * 2 * 2 * 2 * 2 * 2 * 2
The only factor is 2
7^2 = 7 * 7
The only factor is 7
Comparing the factors when written as a repeated multiplication,
2^7 and 7^2 have no common factor :
2^7 = 2 * 2 * 2 * 2 * 2 * 2 * 2 = 128
7^2 = 7 * 7 = 49
Will mark brainliest for correct answer, due soon!
circumference = pi*d
70cm*pi = 219.8cm
219.8cm × 240 rev = 52752 cm
52752cm/100 = 528m
Find values of x and y
someone help me plz!!!!
Answer:
Y=30
X=40
Step-by-step explanation:
for Y is because 46-16=30
for X is because 180÷3=60
80+60=140
180-140=40
can someone give me the slope and y-intercept for this ?
The slope is equal to the change in y / change in x.
The change in y is always 5 and the change in x is always 1.
So the change in y / change in x is 5/1 or 5.
The y-intercept is the value of y when x = 0.
So the value of y when x = 0 is 2.