The equation would be x² + x = 42 which represents "the sum of a number and its square is 42". The correct answer would be an option (A).
What is algebra?
Algebra is the analysis of mathematical representations, while logic is the manipulation of those symbols.
We have been given that the sum of a number and its square is 42.
Let's assume the required number would be x
According to the given question, translate the phrase into an algebraic form:
The number = x
The number's square = x²
Thus, the sum of a number and its square is 42 will be as:
⇒ number + number's square = 42
⇒ x + x² = 42
Therefore, the equation would be x² + x = 42 which represents "the sum of a number and its square is 42".
Hence, the correct answer would be option (A).
To learn more about the Algebra link is given below.
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100 points i will mark brainliest for fist correct answer
Answer:
Equal, equal, not equal, not equal
Step-by-step explanation:
A) Equal, because they have the same height and base. To find the area of a triangle, you use "(b+h)/2". In this situation, the "b" and the "h" are equal.
B) Equal, as they also have the same height and base. To find the area, you use b*h, and they are equivalent.
C) Not equal. The two lengths given are not equal.
D) Not equal. The two triangle's heights are equal, but their bases are not. If you look at the second triangle, you can see that if is further from the triangles' intersections. This means that the base is larger than the one on the left.
Consider the equation -2x+3y=6.
Write the equation in slope-intercept form.
Identify the y-intercept.
Identify the slope.
Answer:
y=2/3x+2
Step-by-step explanation:
convert the mixed number to an improper fraction. enter your answer below using the slash mark ( / ) as the fraction bar.
4/frac{1}{8}
I will give brainliest to the first person who answers.
Answer:
the answer is [tex]\sqrt{5\\}[/tex] , and - [tex]\sqrt{5\\}[/tex] which is C.
Step-by-step explanation:
well I got that answer by doing this
we have [tex]x^{2}[/tex]= 5
For [tex]x^{2}[/tex]= f (a) the solutions are x = [tex]\sqrt{f(a)\\}[/tex] , - [tex]\sqrt{f(a)\\}[/tex]
so in this case the solutions are [tex]\sqrt{5\\}[/tex], and - [tex]\sqrt{5\\}[/tex]
HOPE THIS HELPS :)
What are some good note for Notes for Median and mean
Answer:
To find the Median arrange the data in order from least to greatest then find the middle number. To find the middle number cross of one from the front and one from the bcak. If there are 2 numbers left in the middle add those numbers together and them divided the sum by 2.
The mean is the average of the numbers. It is easy to find. First, add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Step-by-step explanation:
PLEASE HELP! I’ll GIVE THE BRAINLIEST TO WHOEVER ANSWERS CORRECTLY!!
Answer:
The answers 15
Step-by-step explanation:
You just subtract Q1 from Q3
So for the first its: 45 - 30 = 15
and the second one is 50 - 35 = 15
Answer choices for both of them are
A) linear
B) exponential
C) quadratic
Answer:
#16 is linear but idk what 17 is
what is the measure of angle 15
Answer:
A
Step-by-step explanation:
m<15 = m<1 because of how the transversals are placed. so m<1 = 90º - 65º = 25º
that means that m<15=25º
Answer:
<15=25º
Step-by-step explanation:
big brain
Please help due in 20 minutes!
Answer:
x =12
Step-by-step explanation:
We use the Pythagorean theorem
a^2 + b^2 =c^2 where a and b are the legs and c is the hypotenuse
x^2 + 5^2 = 13^2
x^2 +25 =169
Subtract 25 from each side
x^2 +25-25=169-25
x^2 = 144
Take the square root of each side
sqrt(x^2) = sqrt(144)
x = 12
70% of Mr. Austin's students like Geometry. 35% like both Algebra and Geometry. What percent of those who like Geometry also like Algebra?
A. 50%
⊝
B. 35%
⊝
C. 70%
⊝
D. 30%
Please help I’ll give branliest answer
Answer:
Either Impossible question or B
Step-by-step explanation:
2 Ideas...
B because the question states that 35% like both Algebra and Geometry. The question then goes on to ask "What percent of those who like Geometry also like Algebra?" which is stated in the above (35%)
Or...
It is a trick question (although that isn't an option so it is less likely)
Because 75+35 = more than 100
Hope this helps
There are 450 total students at Snowden School. On Tuesdays, 12% of the students stay after school for Comedy Club. How many students stay after school for Comedy Club?
Answer:
54 students
Step-by-step explanation:
First, change the percent to a decimal.
12% = 0.12
Now, multiply the decimal by the total amount of students to find the amount of students that stay after school.
450 × 0.12 = 54
54 students stay after school for Comedy Club.
Answer:
3750
Step-by-step explanation:
You have to do is divided 450 from 12% and then you get your answer
HURRY!! WILL MARK BRAINLIEST!!!
whixhxh two points on the number line are opposites? !!HURRY WILL CASHAPP 10 BUCKS.
Answer:
points a and d because point a is -1 and 2/3 and point d is 1 and 2/3 so they are opposites
Given: m arc AB = 4x, m arc BC = 3x
m arc CD = 2x, m arc DA = 3x
Find: m∠APB
Answer:
a > m/bp
Step-by-step explanation:
flip the equation
abp > m
divide both sides with bp
abp/bp > m/bp
a > m/bp
Answer:
m<APB = 30 degrees
Step-by-step explanation:
The sum of angles in a circle is 360 degrees. Add up all the arcs to get the equation : 4x+3x+2x+3x=360 degrees.
x is equal to 30 degrees
m arc AB = 4x = 120 degrees
m arc DC = 2x = 60 degrees
By secants exterior angles, m<APB = 1/2(m arc AB - m arc DC) = 1/2(120-60) = 30 degrees.
The answer is m<APB = 30 degrees
plz help!!! Drag the tiles to the correct boxes to complete the pairs.
Match each point of intersection with the system of equations whose solution is at that point. (look at image)
Answer:
Step-by-step explanation:
Each point of intersection with the system of equations was matched.
what is a linear equation?Any equation in the form [tex]ax+by+c=0[/tex] is called a linear equation where a,b,c∈R.
In the given diagram, to find the intersection of two lines, solve the equations of two lines.
1)[tex]\left \{ {{y=-2x-3} \atop {y=2x-1}} \right.[/tex]
The solution of the given system of equations comes to be x=-1/2 and y=-2.
So they will intersect at (-1/2, -2) i.e. same as the graph.
2)[tex]\left \{ {{y=x+4} \atop {y=-x+2}} \right.[/tex]
The solution of the given system of equations comes to be x=-1 and y=3.
So they will intersect at (-1,3)
Similarly, the other two systems of equations will intersect at (-7/3,5/3) and (-1,1) respectively.
Hence, each point of intersection with the system of equations was matched.
To get more about equations visit:
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Sara has x dollars and Dina has 15 dollars less than Sara . Together the number
of dollars they have is?
Answer:
2x-15
Step-by-step explanation:
Sara has x dollars
dina has 15 less which is
x-15
together it will be
x+x-15
=2x-15
Tami would like to withdraw $10,364.10 at the end of each year, for 10 years, from an account paying 2.3% compounded annually. Determine the amount needed in the account for Tami to do this. Round to the nearest cent. a. $115,052.98 b. $103,641.00 c. $91,651.92 d. $93,759.91 Please select the best answer from the choices provided A B C D
Answer:
Answer:
Option c -$91,651.92
Step-by-step explanation:
Given : Tami would like to withdraw $10,364.10 at the end of each year, for 10 years, from an account paying 2.3% compounded annually.
To find : Determine the amount needed in the account for Tami to do this.
Solution :
We apply the present value formula to get the amount,
Where, PV is the present value ,the required amount
P is the principal P=$10,364.10
r is the rate r=2.3% annually, r=0.023
n is the time n=10 years
Substitute in the formula,
Therefore, The amount needed is $91651.92.
Hence, Option c is correct.
Read more on Brainly.com - https://brainly.com/question/3432251#readmore
Step-by-step explanation:
HELPPP
If x=-1, which quadrant does the point (2x,-x) lie in?
Answer:
Second
Step-by-step explanation:
x=-1
(2x, -x)
(2*-1, - -1)
(-2 ,1)
(negative, positive) is in the second quadrant
II | I
-------|----------------
III | IV
DUE NOW PLZ HELP
6, 9, 3, 7, 8, 7, 5
minimum:
maximum:
Answer:
minimum is 3 and maximum is 9
Step-by-step explanation:
Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours.
What is Maya’s biking speed?
PLZ HELP IN A BIG RUSH PLZ PLZ PLZ
Answer:
Maya's biking speed is 8 miles per hour.
Step-by-step explanation:
She can run 18 miles in 3 hours. That means she could run 6 miles in one hour. So, if she can ride her bike 18 miles in 2 hours she can bike 9 miles per hour.
If she bikes for 27 (3 hours) miles and runs 9 miles (1.5 hours) then taking the total of miles dividing it by the time you would get Maya's speed.
Which logarithmic equation is equivalent to the exponential equation below?
ea = 35
A. log35 2 = e
B. In 35 = a
c. log235 = 2.5
D.. In a = 35
Answer:
B
Step-by-step explanation:
Using the rule of logarithms
[tex]log_{b}[/tex] x = n ⇔ x = [tex]b^{n}[/tex]
Given
[tex]e^{a}[/tex] = 35, then
[tex]log_{e}[/tex] 35 = a, that is
ln35 = a → B
Which expression should replace the box to finish the expanded form of 387.926?
2 × 1100
20
0.02
20 × 110
Answer:
0.02
(or 2 x 1/100)
Step-by-step explanation:
Number:
387.926
The number '2' in this number is in the hundredth place.
*Remember, it is a decimal so in expanded form it is multiplied by a fraction*
Therefore, it is written as 2 x 1/100 or 0.02
Answer:
its 2x1/100
Step-by-step explanation:
i got it correct
Below are the average incomes for different education levels. How does the outlier affect the mean?mm
Answer:
It affects the Mean by how many different numbers.
Step-by-step explanation:
Find the medianDetermine all of your answers. and Figure out if the mean and the outlier are similiar.Function A is represented by the equation
y=1/3x+5. Function B is represented by the graph. Which function has a greater rate of change? explain.
Answer:
They have the same rate of change.
Step-by-step explanation:
Well the graph of Function B is y = 1 / 3x + 2
So they have the same rate of change, since they have the same slope.
PLZ HELP I NEED THE RIGHT ANSWER ASAP!!!!!!!!
Answer:
B. 66
Step-by-step explanation:
[tex]\frac{1}{x}(2x + 192)[/tex] Substitute x = 3
[tex]\frac{1}{3} (2 *3+192)[/tex] Multiply in the parentheses
[tex]\frac{1}{3}[/tex](6 + 192) Add
[tex]\frac{1}{3}[/tex](198) Multiply
66
Does anyone know the answer? thank you!
Answer:
x= c - b / 3a
Step-by-step explanation:
3ax + b = c
3ax = c - b
x= c - b / 3a
Help looks like i forgot to read a ruler
Answer: 4 1/16
Step-by-step explanation:
I need help please as soon as possible
Answer:
0
Step-by-step explanation:
1 1/8 + 1/8 is 1 2/8 or 1 1/4
you subtract 1 1/4 minus 5/4 which is 1 1/4
Answer:
0
Step-by-step explanation:
9/8 + 1/8 = 10/8
5/4-5/4 = 0
10 over 13 as a decimal rounded to the nearest tenth
Answer:
0.7
Step-by-step explanation:
If you divide 10 by 13 you get 0.76923 which rounded to the nearest tenth is 0.7
Hope this helped!
Answer:
0.8
Step-by-step explanation:
To find the decimal form of [tex]\frac{10}{13}[/tex] you'll need to divide 10 by 13.
10 ÷ 13 = 0.76923076923
The tenths decimal place is one to the right of the decimal: 0.1
Because the number after the tenths place is greater than or equal to 5, we will round the 0.7 up to a 0.8
The spinner shown below is used to play a game.
4
5
3
6
2
7
1
8
What is the probability that the arrow will land on a number greater than 5?
3/5
3/8
5/8
1/3
The diameter of a circle measures 8 cm. What is the circumference of the circle?
Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.
Answer:
16π or 50.266
Step-by-step explanation:
Circumference formula is just 2πr ,and the radius is 8, so just sub into the formula
Answer: 25.12 cm
Step-by-step explanation:
The formula for the circumference of a circle is [tex]2\pi r[/tex], when r = the radius.
Diameter = 2 x radius = 8 cm. Therefore, the radius = 4 cm.
Plug r = 4 cm in to the circumference formula: [tex]2\pi (4)[/tex] = 8 x 3.14 = 25.12 cm.