Answers
Answer:
10
Step-by-step explanation:
x(x+80) = 30²
x²+80x=900
x²+80x-900=0
(x+90)(x-10) = 0
x= -90 or x= 10
x = 10 is the answer
Related Questions
100 POINTS HELP! THIS IS A PROJECT. BUT AN ANSWER TOMORROW OR TODAY IS OKAY!
Describe how to find the terms mean, median, mode, and range of a group of numbers then, give examples. Make sure you include the data set (the group of numbers) you will be working with.
Answers
Answer: We will be working with the numbers 1-4, you can change the numbers to anything, just change the math.
The mean is the "average" of a set of numbers. Add up ALL the numbers, and then divide by how many numbers there are.
Ex. 1+2+3+4 then, 10/4 =2.5
The mode is the number that occurs most frequently in a set of numbers.
Ex. 1, 2, 2, 2, 3, 4, 2, 2, 4, : The mode would be 2.
The range is the difference between the smallest and highest numbers.
Ex. 1, 2, 3, 4, ,3, 2, 3, 4, : Put all the numbers in order, then subtract highest from lowest.
1,2,2,3,3,3,4,4
4-3=1 The range would be 1.
Answer:
The median is the middle. You add and divide for the mean. The mode is the one that appears the most. And the range is the difference in between. For example, the median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. If there is an odd amount of numbers, the median value is the number that is in the middle, with the same amount of numbers below and above. The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count. The mode of a data set is the number that occurs most frequently in the set. To easily find the mode, put the numbers in order from least to greatest and count how many times each number occurs. The number that occurs the most is the mode! The difference between the highest and the lowest values in a set. Interval, also called range, a set of real numbers that includes all numbers between any two numbers in the set.
Donna wants to wrap a shipping box shaped like a rectangular prism. The box is 23 inches tall and has a square base with sides that each measure 4 inches. How much paper will she use?
Answers
Given the polynomial, identify the coefficients and degree of each term: 8 x 4 + 7 x + 5 x 2 + 3 x 3 + 7 First term: degree= coefficient = Second term: degree= coefficient = Third term: degree= coefficient = Fourth term: degree= coefficient = Fifth term: degree= coefficient = Note: make sure that you understand the terms "leading coefficient" and "leading term"! What is the leading coefficient? What is the degree of the leading term? What is the degree of the polynomial?
Answers
Answer:
leading coefficient is 8
degree of the leading term is 4
degree of the polynomial is 4
Step-by-step explanation:
Given
[tex]8x^4 + 7x + 5x^2 + 3x^3 + 7[/tex]
Solving (a): The leading coefficient
This is the coefficient of the [tex]variable[/tex]with the highest power.
The highest [tex]power[/tex] in the [tex]polynomial[/tex] is 5.
Hence, the leading coefficient is 8
Solving (b): Degree of the leading term
First, we identify the [tex]leading[/tex] term, i.e. the term that has the [tex]highest[/tex] [tex]power[/tex].
This term is: [tex]8x^4[/tex]
So, the degree of the leading term is 4
Solving (c): Degree of the polynomial
This is the same as the [tex]degree[/tex] of the [tex]leading[/tex]term
So, the [tex]degree[/tex] of the [tex]polynomial[/tex] is 4
may I have help?! Thanks
Answers
Answer:
Hello! answer: A
Step-by-step explanation:
9 × 3 × 12 = 324 cm3
Answer:
324 cm cubed
Step-by-step explanation:
length×width×height. hope this helps!
Brainliest for help please
Answers
Answer:
B
Step-by-step explanation:
Given
5 [tex]\frac{11}{40}[/tex]
= [tex]\frac{5(40)+11}{40}[/tex]
= [tex]\frac{200+11}{40}[/tex]
= [tex]\frac{211}{40}[/tex] → B
The simple interest on $15,000 for 4 years
is $8, 100. Calculate the rate percent per annum.
Answers
Answer:
13.5%
Step-by-step explanation:
8100 interest/4 years=2,025 interest per year
principal x interest rate=interest per year
15000 x interest rate=2025
interest rate =2025/15000
interest rate=.135 or 13.5%
Find the lateral area of a cone with a diameter of 10 centimeters and a slant height of 9 centimeters round to the nearest tenth
Answers
Answer:
The lateral area of a cone is 141.4 square centimeters
Step-by-step explanation:
Mathematically, we have the formula for the lateral area of a cone as;
A = pi * r * l
where r is the radius of the cone and l
is the slant height of the cone
Mathematically, the radius is simply half the measure of the diameter
we have that as 10/2 = 5 cm
So substituting these values;
A = 22/7 * 9 * 5
A = 141.4 square centimeters
Find the value of x.
Answers
Answer:
Step-by-step explanation:
The equation for this is
12(x + 1) = 10(10 - x) and
12x + 12 = 100 - 10x and
22x = 88 so
x = 44
the numerator of a fraction is 2 less than the denominator . If one is added to its denominator ,it becomes 1/2 ,find the fraction.
tell me with full explanation
Answers
Answer:
numerator = 2 and denominator is 4
Step-by-step explanation:
let the denominator be x
numerator = x-2
according to the question
[tex]\frac{x-2}{x} = \frac{1}{2}[/tex]
do cross multiplication
x*1 = 2(x-2)
x = 2x -4
4 = 2x - x
4 = x
therefore denominator is 4
numerator = x-2
=4-2
=2
Translate each sentence into an inequality
Answers
Please help, will give BRAINLIEST
Answers
Help me please it’s urgent
Answers
Answer:
(y-7) = 2(x-1)
Step-by-step explanation:
The point slope form of a line with slope m passing through (a,b) is
(y-b) = m(x-a)
here slope m = (7-3)/(1- -1) = 4/2 = 2
The point used was (1,7)
So the equation is
(y-7) = 2(x-1)
Note:
#11 is correct
Which line is the correct graph for y = -3/4x
A/ blue line
B/ purple line
C/ green line
D/ red line
Answers
Answer:D
Step-by-step explanation:
Find each product. (30 Points!)
Answers
just need an answer
Brainliest goes to whoever answers correctly
Answers
Answer:
The answer is C.
Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answers
y = -4x - 5
y = 3x - 2
Is (3, 7) a solution of the system?
Will give brainliest!
Answers
Answer:
x=-3/7 and y=_23/7
Step-by-step explanation:
y=-4x-5 and y=3x-2
using comparison method
-4x-5=3x-2
-4x-3x=-2+5
-7x=3
x=3/-7
substituting the value of x
y=3x-2
=3×(-3/7)-2
=-9/7-2
=-9-14/7
=-23/7
What's the area of this triangle
Answers
Answer:
D A = (1/2) (y₂ - y₁)(x₃ - x₁)
Step-by-step explanation:
b = (y₂ - y₁)
h = (x₃ - x₁)
A = (1/2)bh
A = (1/2) (y₂ - y₁)(x₃ - x₁)
If f(x) = x2 – 3, then f(-1) is equivalent
to
Answers
Answer:
negative 5. or -5
Step-by-step explanation:
f(-1)= (-1)2-3
2 times -1= -2
-2-3= -5
f= -5
this question is -5
2. What are the first two
common multiples of 2 and 3*
O 12 and 18
O 18 and 16
O 6 and 12
O 12 and 16
Answers
Answer:
6 and 12 is the answers
Step-by-step explanation:
hope this help enjoy your day:)
Answer:
Third option
Step-by-step explanation:
2-4 6 8 10 12
3- 6 9 12
common multiples 6&12
The drama club is running a lemonade stand to raise money for its new production. A local grocery store donated cans of lemonade and bottles of water. Cans of lemonade sell for $2.50 each and bottles of water sell for $1.25 each. The club needs to raise at least $600 to cover the cost of renting costumes. The students can accept a maximum of 460 cans and bottles.
Write a system of inequalities that can be used to represent this situation.
The club sells 144 cans of lemonade. What is the least number of bottles of water that must be sold to cover the cost of renting costumes? Justify your answer.
Answers
Answer:
Step-by-step explanation:
The drama club is running a lemonade stand to raise money for its new production. A local grocery store donated cans of lemonade and bottles of water. Cans of lemonade sell for $2.50 each and bottles of water sell for $1.25 each. The club needs to raise at least $600 to cover the cost of renting costumes. The students can accept a maximum of 460 cans and bottles.
Write a system of inequalities that can be used to represent this situation.
The club sells 144 cans of lemonade. What is the least number of bottles of water that must be sold to cover the cost of renting costumes? Justify your answer
can someone please help me with this?? please please please help me
Answers
Step-by-step explanation:
base is 12, hypotenuse is 20
so X² is h²-b²
so X=16
Find the value of 2 in the triangle shown below. 3.5 4 55° 3.5
Answers
Hope this help!!!
Have a great day!!!
Step by step explanation:
Help. Final is tomorrow
Answers
Answer:
The answer is C, good luck on your final!
Explanation: Use the pythagorean theorem to find the hypotenuse (from process of elimination, its 17). Then, cos = adjacent/hypot. meaning C is correct!
The vertices of quadrilateral DEFG are D(-2, 6), E(-4, 6), F(-6, 9), and G(-1, 9). Find the coordinates of the image of quadrilateral DEFG after a translation using the rule (x, y) → (x + 1, y - 6), a reflection over the x-axis, and a reflection over the y-axis
Answers
Answer:
the coordinates from all of the transformations are (1,0) (3,0) (5,-3) (0,-3)
Step-by-step explanation:
after using the first rule the coordinates were (-1,0)(-3,0)(-5,3)(0,3)
after reflectiong it over the x-axis (-1,0)(-3,0)(-5,-3)(0,-3)
after reflecting it over the y-axis it gave the final answer of (1,0) (3,0) (5,-3) (0,-3)
What is the area of the figure?
Answers
Answer:
I thik it is B
Step-by-step explanation:
Solve the inequality, then identify the graph of the
solution.
2x – 1 > x + 2
N
X
-20
-10
0
10
20
r
-20
-10
0
10
20
-20
-10
0
10
20
-20
-10
0
10
20
Answers
Hope this is straightforward.
Allison measured her rectangular deck and found that it has dimensions of 512 yards by 8 yards. Both the length and the width may have a measurement error of up to 15%. What is the maximum possible area of Allison’s deck, rounded to the nearest thousandth of a square yard?
Answers
Answer:
5416.96 square yards
Step-by-step explanation:
To find the maximum possible area, increase the dimensions by 15%, since the measurement error may be up to 15%.
512(1.15) = 588.8
8(1.15) = 9.2
Find the area using the area formula, A = lw
Plug in the length and width:
A = lw
A = (588.8)(9.2)
A = 5416.96
So, the maximum possible area is 5416.96 square yards
it is 1:45 25min later what time is it
Answers
Answer:
The answer is 2:10
Step-by-step explanation:
60 mins in an hour. 1:45+25 is 1:70, turn that into ours and you get 2:10.
Answer:2 hours 10 minutes
Step-by-step explanation: You will need to use a number line but there are different methods. 45 plus 25 = 70. There are 60 minutes in an hour so you do 70-60=10. You add 60 mins onto the hour so it is now 2 hours 10 minutes. Hope this helps!
47 cm
Find the surface area of the triangular prism. The base of the
prism is an isosceles triangle.
37 cm
35 cm
24 cm
The surface area is cm².
Answers
Answer:
I'll setup the problem. But I have a question about the car the equal sides of the isosceles triangle. We'll go with 37 cm
Step-by-step explanation:
you will have to find the areas of the 2 isosceles triangles at either end and the 3 rectangles around the triangles.
Area for the triangles
[tex]A = \frac{1}{2} bh[/tex]
b = base of triangle, I'll guess it's 24cm
h = height (draw a line between the vertex of the equal sdes to the base at a right angle, then use Pythagoras to
find the height)
[tex]
h = \sqrt{ {37}^{2} - {( \frac{1}{2}b) }^{2}}[/tex]
area for rectangles
37x47 + 24x47 + 37x47
sorry it's a little sloppy (I'm on a cellphone)
comment if you have questions
