Answer: $3
Step-by-step explanation:
Given
Luis has $20
He can buy 4 tennis balls and get $8 dollar back
Money spent on balls [tex]20-8=\$12[/tex]
i.e. 4 tennis balls cost [tex]\$12[/tex]
1 tennis ball costs [tex]\dfrac{12}{4}=\$3[/tex]
Each tennis ball costs $3.
Write the quadratic equation in standard form.
Step-by-step explanation: If we want to put this in standard form, we first want to add 2x² to both sides of the equation to get 2x² + 5x - 17 = 0.
Notice that I have set up the left side of the equation in descending order of powers. In other words, first the x² term, then the x term, then the constant term.
What is the algebraic input rule?
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Pls help this is probably super easy but not for me
A student is standing 20 feet away from the base of a tree. he looks to the top of the tree from a 50 degree angle of elevation. His eyes are 5 feet above the ground. using cos 50°≈0.64, what is the height of the tree to the nearest foot?
A. 29 feet
B. 24 feet
C. 31 feet
D. 36 feet
Answer:
A. 29 feet
Step-by-step explanation:
Use cos to find the hypotenuse
cos = adj/hp
0.64 = 20/hyp
hyp = 20/0.64
hyp = 31.25
---------------------------
Use Pythagorean Theorem to find the height of tree above eyes
a² + b² = c²
a² + 20² = 31.25²
a² = 31.25² - 20²
a² = 576.5625
a = 24 (to the nearest foot)
-------------------------------
Finally add in the eye height
h = 24 + 5
h = 29 feet
Answer:
A. 29 feet
Step-by-step explanation:
Please help me with this
Answer:
Step-by-step explanation:
[tex](-1)^{n}[/tex] * [tex]2^{n}[/tex]
then
[tex](-1)^{6}[/tex] * [tex]2^{6}[/tex] = 64
Solve by completing the square: +12x-13=0
Answer:
Simplified :
x = 13/12
(Mixed number) :
x = 1 1/12
Step-by-step explanation:
Multiply (2x+3y) and (3x+4y-5z)
please answer this fast
Answer:
6x² + 12y² + 17xy - 25xz
Step-by-step explanation:
(2x + 3y) (3x + 4y - 5z)
= 6x² + 8xy - 10xz + 9xy + 12y² - 15yz
= 6x² + 12y² + 8xy + 9xy - 10xz- 15yz
= 6x² + 12y² + xy (8 + 9) - xz (10 + 15)
= 6x² + 12y² + 17xy - 25xz
Expand the following:
Answer:
2x+6
10x-20
8x+1
6x-24y
Step-by-step explanation:
so what you do is multiply the number outside of the bracket by the numbers inside while keeping their repective symbol.
Answer:
2x+6
10x-20
8x+1
6x-24y
Step-by-step explanation:
Determine the number of solutions for the equation shown below.
4 X+6 = 4x + 6
O A. 2
B. Infinitely many
O C. 1
O D.O
Answer:
x+6=4x+6
3x=0
x=0
the answer is 0 have a great day
How can you add, subtract, and multiply decimals.
PLEASE HELP ME W A MATH PROBLEM!!!
Answer:
A) 296
Step-by-step explanation:
we have to find the angle of angle 5 since we know angle 6. Angle 6 is 32 so we will subtract 32 from 180 since straight lines are 180 degree angles (even though it doesn't look like one). This will give us 148. Since angle 5 and 4 are alternate interior angles, they have the same angle measurements. 148 + 148 = 296. Thus, angle 5 + angle 4 = 296 degrees.
Help please I don’t understand
Line AB has the endpoints A (8, -2) and B(7, 3) What are the X-and Y-coordinates of point C that partitions AB at a 6 : 3 ratio.
C is at (______, ______)
Round your answer to the nearest thousandth, if necessary
i need help omg!
pls lol
!!!!!!!!!
Answer:
translation 10 units right and a reflection over the axis
Find the perimeter of a field with the following dimensions:
Length: x^2+3x-1
Width: 2x+3
Answer:
yo the answer would be 2x^2 +10x +4. I think you are taking the same test I am
Can some plz help me with this problem
Answer:
Choice D
Step-by-step explanation:
According to the graph, f(-8)=-8
how many 2and three quaterkg are there in 16and a half kg
Answer:
a quarter of a kilogram is just over half a pound in Imperial measurements. 1 kg is 2.2 How many lbs are there in 4.2 kg? 1,502 Views Which is smaller out of 2/-3 and -3/4? 4,328 Views 1/4 kg = 16 x .55125= 8.82 ounces. 31 views.
BRAINLIEST PLS
Step-by-step explanation:
PLSSSSSSSSSSSSSSSS HELP PPLLASSSSSSSS
Answer:
2.77777777778
Step-by-step explanation:
What do you call a fake noodle
Answer:
an impasta
Step-by-step explanation:
sus
Answer: an Impasta
Step-by-step explanation:
Give me brainliest please lol
The children in a school were asked how many cats and dogs
they have. The ratio of cats to dogs is 3 to 2. The children have
150 cats altogether. How many dogs do the children have?
Answer:
90 cats 60 dogs
Step-by-step explanation:
3x +2x = 150
5x = 150
x = 30
3(30) + 2(30) = 150
90 + 60 = 150
3/2 = 1.5
90/60=1.5
y'all -
please help
I have been on this question for like 20 mins
Answer:
d
Step-by-step explanation:
Write the equation in slope intercept form?
Answer:
A
Step-by-step explanation:
The linear equation in two variables is given to us is
→ y = 3( x -4) +6x
Slope Intercept Form :-
The slope intercept form of the equation is y = mx + c .→ y = 3x - 12 + 6x
→ y = 6x + 3x -12
→ y = 9x - 12
Hence the correct option is A .Ten cards numbered 1 through 10 are mixed together and then one card is drawn. Find the probability of each event. Write each answer as a fraction, percent, and decimal. P(less than 5) P(greater than 3) P(odd) P(even) P(not a multiple of 4) P(not 5, 6, 7, or 8) P(divisible by 3)
Answer:
2/5, 0.4, 40%
7/10, 0.7, 70%
1/2, 0.5, 50%
1/2, 0.5, 50%
4/5, 0.8, 80%
3/5, 0.6, 60%
3/10, 0.3 ; 30%
Step-by-step explanation:
Sample space = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
P(less Than 5) :
Required = (1, 2, 3, 4) = 4 observations
P(less than 5) = 4 / 10 = 2 / 5 = 0.4 = 40%
Greater than 3) = (4, 5,6,7,8,9,10) = 7 observations
P greater Than 3) = 7/10 = 0.7 = 70%
Odd = (1,3,5,7,9) = 5
P(odd) = 5 / 10 = 1/2 = 0.5 = 50%
(even) = (2,4,6,8,10) = 5
P(even) = 5 / 10 = 1/2 = 0.5 = 50%
Not a multiple of 4 = (1,2, 3,5,6,7,9,10) = 8
P(not A multiple of 4) = 8/10 = 4/5 = 0.8 = 80%
not 5, 6, 7, or 8 = (1,2,2,4,9,10).= 6
P(not 5, 6, 7, or 8) = 6 / 10 = 3/5 = 0.6 = 60%
Divisible by 3 = (3, 6, 9) = 3
P(divisible by 3). = 3/10 = 0.3 = 30%
Your classmate is unsure about how to use side lengths
to determine the type of triangle. How would you explain
this to your classmate?
Answer:
you look at the lengths some triagles have small parallel lines anè or two of them to determine if they are equal or different from one another
triangle is: if:
right c^2=a^2 +b^2
acute c^2<a^2 +b^2
obtuse c^2>a^2 +b^2
Which statement about convergent infinite geometric series is true?
a.The graph of a convergent infinite geometric series goes to infinity.
b.The graph of an infinite geometric series curves away from its sum.
c.A finite geometric sequence will have an infinite geometric series.
d.An infinite geometric series converges if −1
Answer:
B. The graph curves away from its sum
Step-by-step explanation:
A convergent infinite geometric series, the graph of the series curves away from the sum, the correct option is B.
What is a Geometric Series?A sequence of numbers such that the consecutive term is increasing or decreasing by a fixed ratio is called a geometric series.
The standard equation for geometric series is
Tₙ = a₁ rⁿ⁻¹
The sum of an infinite geometric series is given by
S = a₁/(1-r)
where a₁ is the first term and r is the common ratio.
The graph of an infinite series curves away from its sum.
To know more about Geometric Series
https://brainly.com/question/4617980
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Solve for x the triangles In Each pair LMN~LRS
Please help quickly and show work pleasee
Given:
[tex]\Delta LMN\sim \Delta LRS[/tex]
To find:
The value of x.
Solution:
We have,
[tex]\Delta LMN\sim \Delta LRS[/tex]
We know that the corresponding sides of similar triangles are proportional. So,
[tex]\dfrac{LM}{LR}=\dfrac{LN}{LS}[/tex]
[tex]\dfrac{18}{2x-18}=\dfrac{30}{10}[/tex]
[tex]\dfrac{18}{2x-18}=3[/tex]
[tex]18=3(2x-18)[/tex]
Using distributive property, we get
[tex]18=3(2x)-3(18)[/tex]
[tex]18=6x-54[/tex]
[tex]18+54=6x[/tex]
[tex]72=6x[/tex]
Divide both sides by 6.
[tex]\dfrac{72}{6}=x[/tex]
[tex]12=x[/tex]
Therefore, the correct option is A.
Please help me. I need help
Answer:
hope this helps you out :)
x2+nx -mx-nm = 0
Plzzzzzzzzzzzzzzzz help me
Answer:
I don’t know
Step-by-step explanation:
pls help me with this‼️
Answer:
A
Step-by-step explanation:
for D I draw it out and it didn’t make sense
After five games a football team's goal average is 2.8. After one more game the goal average is 3. The number of goals scored in the 6th game was:
A. 3
B. 4
C. 5
D. 6
E. 7
Move exactly two match sticks to make a prime number. How many different ways can you find to do this?
Answer: hello the image related to your question is missing attached below is the image
answer : 97 , 37, 67 done in three ( 3 ) different ways
Step-by-step explanation:
Prime number are number that can be divisible only by 1 and itself
Hence
The prime numbers that can be made by moving exactly two match sticks are : 97 , 37 , 67
and this can be done in in three (3) different ways