Answer:
9+5+x=20
14+x=20
X=20-14
X=6
Six students used a blue paper
I GIVE BRAINLIEST FOR EXPLANATION AND CORRECT ANSWER EXTRA POINTS 11
Answer:
Step-by-step explanation:
You want to use a trig identity. You have the side opposite, O and the side adjacent A, therefore use tangent:
[tex]tan(x)=\frac{O}{A}[/tex]
Substitute in your values and solve:
[tex]tan(30)=\frac{x}{5}[/tex]
[tex]x=\frac{5\sqrt{3} }{3}[/tex] or 2.9
If I helped, a brainliest answer would be greatly appreciated!
A cellular company offers a price of $40 for 4 GB of data. Find the unit rate in price per GB of data.
Answer:
1 GB = $10
Step-by-step explanation:
$40 / 4 GB = $10 / 1 GB
Answer: $10 per GB
Step-by-step explanation:
divide 40 by 4 to get 10
f(x) = -1/7√√16 -x^2, find f^-1(x)
Answer:
hey i don't know if this helps but i would definitely try math-ways it's faster to respond and it gives step by step :)
Step-by-step explanation:
A school increases its intake by 10%. if it starts with 1000 students, how many will it have at the beginning of the fourth year of expansion?
Answer:
1464 Students
Step-by-step explanation:
10% increase of 1000 = 1100 year 1
10% increase of 1100 = 1210 year 2
10% increase of 1210 = 1331 year 3
10% increase of 1331 = 1464 year 4
i need help plss!!no random answers pls
Answer:
i am learning about this too!!! heres the answer:
Step-by-step explanation:
reflection translation and rotation
tip:look at Mr. Colin Dodds geometric Shapes song
it helped me memorize this perfectly!!!
1/(2 2/3)=1/2x+(3 1/4x)
Answer:
[tex]x = \frac{32}{45}[/tex]
Step-by-step explanation:
Given
[tex]1 * (2\frac{2}{3}) = \frac{1}{2}x + 3\frac{1}{4}x[/tex]
Required
Solve for x
Express all fractions as improper
[tex]1 * \frac{8}{3} = \frac{1}{2}x + \frac{13}{4}x[/tex]
Take LCM
[tex]1 * \frac{8}{3} = \frac{2 + 13}{4}x[/tex]
[tex]\frac{8}{3} = \frac{15}{4}x[/tex]
Cross Multiply
[tex]15x * 3 = 4 * 8[/tex]
[tex]45x = 32[/tex]
Make x the subject
[tex]x = \frac{32}{45}[/tex]
A student would like to estimate the mean length of words in a book report he just finished writing. He selects a
random sample of 20 words and determines the mean length to be 4 characters. Later, he discovers how to use a
built-in function of his word-processing program that reveals that the mean length of all words in his book report is
4.3 characters. Which of the following describes the number, 4.3?
O sample
O statistic
population
parameter
Answer:
statistic
Step-by-step explanation:
because its calculated
Answer:
parameter
Step-by-step explanation:
i got 100
Please ASAP
Which is an example of a cubic monomial?
x² + 5x - 6
x³ + 5
x² + 3
5x³
Answer:
5x^3
Step-by-step explanation:
its the 4th
The polynomial example of a cubic monomial is option D 5x³.
What are terms in polynomials?The polynomial are mathematical expressions involving variables raised with non negative integers and coefficients(constants who are in multiplication with those variables) and constants with only operations of addition, subtraction, multiplication and non negative exponentiation of variables involved.
Terms are added or subtracted to make a polynomial. which are composed of variables and constants all in multiplication.
Example as 3x +5 is a polynomial consisting 2 terms as 3x and 5
Since we know that if there is one term, the polynomial will be called monomial.
If there are two terms, the polynomial will be called binomial and If there are three terms, the polynomial will be called trinomial
Therefore, we can see that 5x³ is cubic monomial.
Learn more about polynomials here:
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No links please and make sure it's correct.
Answer:
2 acute angles,1 obtuse angle,and also 1 right angle
Step-by-step explanation:
as u can see at the top left corner,it's acute,and at the right down corner. At at the left down corner is obtuse,and at the top right corner is right angle ÔwÔ
The equation 3x + 7 = y represents a function. Write it using function notation.
Answer:
3x+7=10x
Step-by-step explanation:
you are just adding 7+3 then you add the vairable term
Answer: f(x) = 3x + 7
Step-by-step explanation:
Function notation basically uses a letter(x) instead of y
f(x), g(x), h(x) are most common
f(x) = 3x + 7
A bucket contains stones and seashells. There are 40 seashells in the bucket and the ratio of stones to seashells is 7 : 4. Find the number of stones in the bucket.
Answer:
70 stones
Step-by-step explanation:
since there are 40 seashells represented by 4 in the ratio
you can do 7 times 10 and that equals 70.
Suppose a gas tank is in the shape of a cylinder. The tank is 20 feet long and 8 feet in diameter. Find the amount of metal used to construct the tank. (Hint: use 3.14 for pi)
A 384.5ft2
B 1028ft2
C 602.9ft2
D 1570.4ft2
Answer:
C. 602.9 ft²Step-by-step explanation:
Surface area of a cylinder:
A = 2πr(h + r)Substitute values:
A = 2(3.14)(8/2)(20 + (8/2)) = 2*3.14*4*24 = 602.88 ft²Matching choice is C
Circle E has the shaded segment shown. If
M
what is the area of the shaded part of
the circle?
To make cheesecake, you need about 2 1/2 pounds of cream cheese. How many pounds of cream cheese will you need to make 2 cheesecakes?
Answer:
5 pounds of cream cheese
Step-by-step explanation:
2 1/2x2= 5
If 2x⁴ + 2y⁴ + 2z⁴ = 144, what is the mean of x⁴, y⁴ and z⁴
Step-by-step explanation:
x
[tex] {x}^{4} = x raiseto \: to \: 4[/tex]
Which table shows a linear fucntion
Answer:
can you attach what your talking about?
Step-by-step explanation:
factor -1/4 out of -1/2x -5/4y. (i will mark brainlyest)
Answer:
-1/4 (2x - 5y)
Step-by-step explanation:
For us to factor -1/4 out of -1/2x -5/4y
We will have to multiply the values in bracket by the reciprocal of -1/4 i.e -4 as shown
-1/2x - 5/4 y
= -1/4 (-4(-1/2x) - (-4)(-5/4y))
= -1/4 (4/2 x - 20/4 y)
= -1/4 (2x - 5y)
Hence the factored expression is -1/4 (2x - 5y)
plzzzzzzzzzzzzzzzzzzzzzzzzzzz in need help
Answer:
I think it's C but I'm not too sure
The dollar value v(t) of a certain car model that is t years old is given by the following exponential function.
v (t) = 29,900(0.92)
Find the initial value of the car and the value after 10 years.
Round your answers to the nearest dollar as necessary.
Please help!!!
Solve the system of linear equations by graphing. y=−x+4 x+3y=0
The system of linear equations by graphing. y=−x+4 x+3y=0 is shown in figure
What is a solution to a system of equations? (SOLUTION GRAPHICALLY)For a solution to be solution to a system, it must satisfy all the equations of that system, and as all points satisfying an equation are in their graphs, so solution to a system is the intersection of all its equation at single point(as we need common point, which is going to be intersection of course)(this can be one or many, or sometimes none)
Given;
y=−x+4
x+3y=0
So, the solution of the equation is as shown in figure
Learn more about finding the solution graphically here:
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Find the surface area of the right rectangular prism shown below.
units?
2.5
10
4
Hi, would I get help on this please?
Which equation does the graph represent? (Giving 50 points )
Answer:
the 2 one i think
Step-by-step explanation:
Use a sine function to graph a sound wave with a period of 0.003 second and a
amplitude of 2 pascals.
Answer:
I think the answer to your question is 40 Hz
What is the area of a right triangle with a base of 25 centimeters and a height of 13 centimeters?
76 cm
162.5 cm
161 cm
38 cm
Answer:
162.5 cm²Step-by-step explanation:Area of a triangle = (BH)/2
Base= 25
Height=13
(25×13)/2= 162.5 cm²
Help! Simplfy! Will mark brainlist!
Step-by-step explanation:
first 12^ 12
second 7^11
Help Me Please I Need It
Tara wants to proWe that a second pair of corresponding angles from triangle
KJN and triangle LJM are congruent, Determine a second pair of corresponding
angles from triangle KJN and triangle LJM that are congruent. Then explain how
you know that the two angles are congruent
Triangle KJN and triangle LJM if their corresponding sides and angles are congruent to each other
What are congruent triangles?Two triangles are said to be congruent if they have the same shape, and all their corresponding sides and angles are congruent to each other.
Triangle KJN and triangle LJM if their corresponding sides and angles are congruent to each other
Find out more on congruent triangles at: https://brainly.com/question/2938476
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-9 = 1/3m + 6
SHOW WORK.
Step-by-step explanation:
Sorry its messy but if you cant understand tell me
ANSWER AND EXPLAIN I’LL MARK BRAINLIEST GIVING 26 POINTS
Answer:
Estimate (eye-ballin'): around (3, 3)
Calculation: (2.6, 3.2)
Step-by-step explanation:
Given:
4x + 3y = 20
y = 2x - 2
Sophia's strat is absolutely correct. She makes two equations into one. This is called "substitution":
- Insert y of 2nd equation as y in 1st equation:
4x + 3(2x - 2) = 20
**Remember to multiply the entire thing by 3**
4x + 6x - 6 = 20
**Solve for x**
10x - 6 = 20
10x = 26
x = 2.6
Now that we have x, just plug it into any equation to find y (hint 2nd is easier):
y = 2(2.6) - 2
y = 3.2
COORDS: (2.6, 3.2)