Answer:
sqrt(89)
approx. 9.433981
Step-by-step explanation:
remember the Pythagorean theorem, where a and b are the legs and c is the hypotenuse
a^2 + b^2 = c^2
now substitute in the given values
a=5
b=8
5^2 + 8^2 = c^2
25 + 64 = c^2
89 = c^2
sqrt (89) = c
At noon, Trevor and Kim start running from the same point. Trevor runs east at a speed of 8 km/h and Kim runs west at a speed of 6 km/h. At what time will they be 21 km apart?
Trevor and Kim will be situated 21 kilometers apart from each other at 1:30 PM. They will be separated by a distance of 21 km when the clock strikes 1:30 in the afternoon.
To determine at what time Trevor and Kim will be 21 km apart, we can set up a distance-time equation based on their relative speeds and distances.
Let's assume that t represents the time elapsed in hours since noon. At time t, Trevor would have traveled a distance of 8t km, while Kim would have traveled a distance of 6t km in the opposite direction.
Since they are running in opposite directions, the total distance between them is the sum of the distances they have traveled:
Total distance = 8t + 6t
We want to find the time when this total distance equals 21 km:
8t + 6t = 21
Combining like terms, we have:
14t = 21
To solve for t, we divide both sides of the equation by 14:
t = 21 / 14
Simplifying, we find:
t = 3 / 2
So, they will be 21 km apart after 3/2 hours, which is equivalent to 1 hour and 30 minutes.
Therefore, Trevor and Kim will be 21 km apart at 1:30 PM.
For more such question on distance . visit :
https://brainly.com/question/30395212
#SPJ8
Mathhhhhhhhhhh which one is correct
Answer:
slope = 4
y intercept = -3
Step-by-step explanation:
The equation is put in slope intercept form
Slope intercept form: y = mx + b
where m = slope and b = y intercept
looking at slope intercept form
4 is located where m should be , meaning that the slope is equal to 4 and
-3 is located where b should be , meaning that the y intercept is -3
Therefore the answers are the first and last option choices.
An elevator has an alarm that goes off if the total weight in the elevator reaches 2000 pounds which inequality represents the weight, w, in pounds, that the elevator can hold without setting off the alarm? a. w < 2,000 b. w < 1900 c. w > 2000 d. w > 2000
Answer:
A
Step-by-step explanation:
w has to be lower so we would use
<
since 2000 has to be higher
W < 2000
Examine the following graphs of two functions. Two functions. One is linear passing thru (1, 2), (3, 4), (6,7) and (8, 9). 2nd function is quadratic passing thru (3, 4), (5, 0), (7, 4) & (8, 9). © 2018 StrongMind. Created using GeoGebra. Which two values of x best represent where the two functions are equal? Enter your answer as two numbers, separated by a comma, like this: 1, 2
The two values of x best represent where the two functions are equal will be (12,11)
What is a graph?
A diagram depicting the relationship between two or more variables, each measured along with one of a pair of axes at right angles.
Given data;
Linear function passing through;
(1, 2), (3, 4), (6,7) and (8, 9)
Quadratic function passing through
(3, 4), (5, 0), (7, 4) & (8, 9)
Let x be two values of x best represent where the two functions are equal;
The value of the x is obtained from the graph where the two line meets.
The value of x willl be (12,11)
Hence, the two values of x best represent where the two functions are equal will be (12,11)
To learn more about the graph, refer to the link;
https://brainly.com/question/14375099
#SPJ1
Write and solve a proportion to answer the question.
What number a is 25% of 78?
=25/100
Question 2
a=
Answer:
\(a = 25\% \: of \: 78 \\ a =\frac{25}{100} \times 78 \\ a = \frac{1}{4}\times 78 \\ \boxed{a = 19.5}\)
a=19.5 is the right answer.Answer:
uh i dont know but i think the other person answered thx
Step-by-step explanation:
What are the roots of 2x^2+4x+7 ? Show your work.
The roots of 2x^2+4x+7 are -1 + i√5 and -1 - i√5.
Define quadratic function.A quadratic function has the generic form f(x)=ax²+bx+c. A parabola, a kind of two-dimensional curve, is the graph of a quadratic function. A polynomial function of degree two in one or more variables is known in algebra as a quadratic function, quadratic polynomial, polynomial of degree 2, or simply a quadratic. The phrase "quadratic" in mathematics refers to something that has to do with squares, the squaring operation, terms of the second degree, or equations or formulas that contain such terms. Latin's word for square is quadratus.
Function:
2x² + 4x + 7 = 0
ax² + bx + c = 0
x = \(\frac{-b +-\sqrt{}b^{2}- 4ac }{2a}\)
a = 2
b = 4
c = 7
Using quadratic function,
x = \(\frac{-4\sqrt{} 4^{2} -4(2)(7)}{2(2)}\)
x = \(\frac{-4+-\sqrt{-40} }{4}\)
So,
i = √-1
x = \(\frac{-4+-2i\sqrt{10} }{4}\)
Simplifying,
x = -1 +-√10/2
Roots are:
x = -1 + i√10/2
x = -1 - i√10/2
The roots of 2x^2+4x+7 are -1 + i√5 and -1 - i√5.
To learn more about quadratic function, visit:
https://brainly.com/question/14737980
#SPJ1
Need the answer for A B C
Therefore , the solution of the given problem of percentage comes out to be this amount to the closest dollar, we get $1,042.
What precisely is a percentage?A number or measure that is represented as a proportion of 100 is known as a "a%" in statistics. Additionally, the terms "pct," "pct," and "pc" are not commonly used. However, it is commonly denoted by the symbol "%". There are no dimensions; the percentage total is flat. Since a percentage's numerator is almost always 100, percentages are actually integers. To indicate that a number is a percentage, either the percentage symbol (%).
Here,
a. The formula: can be used to calculate the weekly payment.
=> P = (Ar(1+r)ⁿ) / ((1+r)^n - 1)
A = 9900, r = 0.06/12, and n = 48 in this instance (since there are 4 years or 48 months in total).
Substituting these numbers into the formula, we get:
=> P = (99000.005(1+0.005)⁴⁸) / ((1+0.005)⁴⁸ - 1) ≈ $227.88
Therefore, the monthly payment is roughly $227.88.
=> Overall = P*n = $227.88 * 48 = $10,942.24
We arrive at $10,942 by rounding this sum to the closest dollar.
c. The total interest paid over the course of the loan's four-year term is equivalent to the total amount repaid less the loan balance:
Total interest equals the total sum less A, or $10,942 minus $9,900, or $1,042.
Rounding this amount to the closest dollar, we get $1,042.
To know more about percentage visit:
https://brainly.com/question/28269290
#SPJ1
Which of the following rational functions is graphed below?
Answer:
there is no attached file
Step-by-step explanation:
How does tetrahedron WXYZ looks like?
The four-sided geometric object known as a tetrahedron (WXYZ) has four triangle faces that are joined to one another at their edges. Its vertices are all linked, and its faces are all equilateral triangles.
The three-dimensional geometric structure known as a tetrahedron (WXYZ) has four triangle-shaped faces. The edges of each of the tetrahedron's faces are joined to one another. All of the faces are triangular shapes with equal sides, or equilateral triangles. The tetrahedron is a solid shape because all of its vertices are joined together. The tetrahedron's four vertices are joined to one another, forming a pyramid-like shape. The tetrahedron's four vertices are the only points that do not form the triangle faces. The tetrahedron's four faces come together to produce a point in the middle of the shape. The apex of the tetrahedron is where this point is located. The faces of the tetrahedron are all congruent, or identical, as they are a regular polyhedron.
Learn more about triangle here
https://brainly.com/question/2773823
#SPJ4
Solve for x in the following equations: -8x -10y = -6 when y = 3
A) -3
B) -6
C) 4
D) -2
Answer:
x = - 3
Step-by-step explanation:
- 8x - 10(3) = - 6
- 8x - 30 = - 6
- 8x - 30 + 30 = - 6 + 30
- 8x = 24
- 8x ÷ - 8 = 24 ÷ - 8
x = - 3
Answer:
the answer is A -3
Step-by-step explanation:
-8x-10y=-6 when y=3
-8x-10(3)=-6
-8x-30=-6
-8x=-6+30
-8x=24
-8x÷8=24÷8
x=-3
Solve the summation from n equals 2 to 9 of negative 3 plus 5 times n. 196 198 243 248
Answer:
196
Step-by-step explanation:
Answer:
196
Step-by-step explanation:
Leo designs a banner for class elections. His banner has 3 congruent circles glued on a rectangular length of butcher paper. The circles touch the edges of the paper and do not overlap. VOTE FOR LEO! If the butcher paper is 24 inches long, what is the area of one circle? Use 3 for pi
Im having issues with this question does anyone know this question STEP BY STEP
The area of one circle is 48 in² if the butcher paper is 24 inches long.
What is area?
The area of a two-dimensional figure is the total area it takes up. It is the quantity, in other words, that counts the number of unit squares that cover the surface of a closed figure.
Square units—commonly expressed as square inches, square feet, etc.—are the accepted unit of area.
Given that:
3 congruent circles are perfectly fitted in the rectangular banner of length 24 inches,
⇒ diameter of each circle = length of rectangular banner/3
⇒ d = 24/3
⇒ d = 8
⇒ r = 8/2
⇒ r = 4
Area of circle, A = π r²
A = 3× 4 × 4 (used pi as 3 as instructed in the question)
A = 48 in²
Thus, the area of one circle is 48 in² if the butcher paper is 24 inches long.
Learn more about area
https://brainly.com/question/27683633
#SPJ1
I am struggling with transformations,rotation on a cartesian plane,how do we do it?
Greetings from Brasil...
Translations
Just add or subtract an m value for all X coordinates as well as add or subtract an n value for all Y coordinates of the figure.
P(X; Y) → P'(X ± m; Y ± n)If the figure has 3 points (A, B and C), we would be left with:
A(X, Y) ; B(X₂; Y₂) ; C(X₃; Y₃)
A(X, Y) → A'(X ± m; Y ± n)
B(X₂; Y₂) → B'(X₂ ± m; Y₂ ± n)
C(X₃; Y₃) → C'(X₃ ± m; Y₃ ± n)
in our example - see attached figure - let
m = 4
n = - 1
(these values of m=4 and n=-1 were chosen by me arbitrarily)
A(1; 2) → A'(1 + 4; 2 - 1) ⇒ A'(5; 1)
B(2; 3) → B'(2 + 4; 3 - 1) ⇒ B'(6; 2)
--------------------------------------------------------------------------
Rotations
The expression (formula) for rotation will be:
P(X; Y) → P'(Xcos θ - Ysen θ; Xsen θ + Ycos θ)
Let rotate 90° (counter-clockwise): cos 90 = 0 and sen 90 = 1, then
P(X; Y) → P'(-Y; X)in our example - see attached figure
A(1; 2) → A''(-2; 1)
B(2; 3) → B''(-3; 2)
______________________________
see more at:
https://brainly.com/question/28354239
1. 2x + 5 = 3x + 1
2. 3x + 2 = 4x - 3
3. 4x - 3 = 3x + 3
Pls help equations. Find x, show workings. You are the best but answer only if u know it. If I report ur answer know that that's not the right answer. Love you all.Don't just work rubbish for points.
Answer:
1)4
2)5
3)6
Step-by-step explanation:
1)2x+5=3x+1
2x-3x=1-5
-1x=-4
x=4
2)3x+2=4x-3
3x-4x=-3-2
-1x=-5
x=5
3)4x-3=3x+3
4x-3x=3+3
1x=6
x=6
Hope it helps
1/6 of the age of a mother is the age of her daughter. If the difference of their ages is 35 years, find the age of the mother.
Answer:
24 6
Step-by-step explanation:
""6_6_6&6&6&6__5ddyfouoyfkykyky
A flower-delivery service charges $39.95 per flower arrangement and $2.99 for delivery. The total cost y is represented by the function y=39.95x+2.99 , where x is the number of flower arrangements.
Which of the following sets of numbers would be appropriate input values for the given situation? Select all that apply.
A) Integer
B) Only Zero
C) Whole Number
D) Rational Number
E) Positive Integer
F) Negative Number
Rewrite the following equation in slope-intercept form.
y + 5 = 1/7( x - 7 )
Write your answer using integers, proper fractions, and improper fractions in simplest form.
I would really appreciate the help.
Answer:
y= 1/7x-6
Step-by-step explanation:
that is the answer in slope intercept form
Please Help
$125-$52
$125
≈ 0.58
or 58% what is wrong in this problem find the mistake and correctly solve the problem
The percent of change from $52 to $125 is 140%.
How do you find percent of change?First, figure out how much the two numbers you are comparing differ (rise). After that, multiply the result by 100 and divide the increase by the original number. % growth is calculated as Growth divided by 100. Your response is a percentage decrease if it is a negative amount.percentage of change = \(\frac{change \ in \ price }{original price} \times 100\)
=(125-52)/ 52 * 100
=140.38%
the percent of change from $52 to $125 is 140%
complete Question :
Dario is finding the percent of change from $52 to $125. Find his mistake and correct it. His mistake: $ 125 - $ 52 over $ 125 = 0.58 or 58%
To learn more about percent of change refer,
https://brainly.com/question/809966
#SPJ1
Two standard dice are rolled together. What is the probability of rolling a sum less than 7 or a sum divisible by 5?
Answer:
Sum less than: 7 (1,1), (1,2), (1,3), (1,4), (1,5), (2,1), (2,2), (2,3), (2,4), (2,5), (3,1), (3,2), (3,3), (3,4), (3,5), (,4,1), (4,2), & (5,1)
Sum divisible by 5 (1,4), (2,3), (3,2), (4,1)
is -14n-7=7 true or false
F = 9 over 5C + 32 solve for C
I'm not sure what you're asking here
Step-by-step explanation:
\( \frac{9}{5c} + 32 = f\)
\( \frac{9}{5c + 32} = f\)
Assuming the former
\( \frac{9}{5c} + 32 = f \\ \frac{9}{5c} = f - 32 \\ \frac{9}{5} = c(f - 32) \\ c = \frac{9}{5(f - 32)} \)
Assuming the latter
\( \frac{9}{5c + 32} = f \\ 9 = f(5c + 32) \\ 9 = 5cf + 32f \\ 9 - 32f = 5cf \\ \frac{9 - 32f}{5f} = c\)
During one season, a baseball team has a total attendance of about 3,500,000 people. Tuesday games account for 18% of the total attendance. What is the attendance for the Tuesday games? Which picture and equation best represent the problem?
Answer:
630 000
Step-by-step explanation:
We have to find 18% of the number 3 500 000:
\( \frac{3500000 \times 18\%}{100\%} = 630000\)
-22 x (- 58/209) what the answer?!?!
Answer:
-22 x ( -58/209) = 116/19
Step-by-step explanation:
can someone please help with this
All correct proportions include the following:
A. \(\frac{AC}{CE} =\frac{BD}{DF}\)
D. \(\frac{CE}{DF} =\frac{AE}{BF}\)
What are the properties of similar geometric figures?In Mathematics and Geometry, two geometric figures are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.
Hence, the lengths of the pairs of corresponding sides or corresponding side lengths are proportional to one another when two (2) geometric figures are similar.
Since line segment AB is parallel to line segment CD and parallel to line segment EF, we can logically deduce that they are congruent because they can undergo rigid motions. Therefore, we have the following proportional side lengths;
\(\frac{AC}{CE} =\frac{BD}{DF}\)
\(\frac{CE}{DF} =\frac{AE}{BF}\)
Read more on scale factor here: brainly.com/question/29967135
#SPJ1
DUE FRIDAY WELL WRITTEN ANSWERS ONLY!!!!!!!!!!!
Complete the table.
The value of tanQ can be find by the formula \(\frac{sin\theta}{cos\theta}=tan\theta\)
Table 0 to 360 of trigonometry: The study of the relationship between a triangle's length and angles is the subject of trigonometry, a branch of mathematics. It typically has a right-angled triangle with one angle that is always 90 degrees. It has a plethora of uses in various branches of mathematics. The table of trigonometric functions and formulas can also be used to quickly determine the results of many geometric calculations.
We can find all the trigonometry value of given angle by using the formula \(\frac{sin\theta}{cos\theta}=tan\theta\)
angle cos∅ sin∅ tan ∅
-π/2 0 -1 infinity
-π/3 0.5 -0.87 -1.74
-π/6 0.87 -0.5 -0.57
0 1 0 0
π/6 0.87 0.5 0.57
π/3 0.5 0.87 1.74
π/2 0 1 infinity
learn more about trigonometry,
https://brainly.com/question/561827
#SPJ1
(25 POINTS!!!) Suppose you and 3 friends are gathering postage stamps to set the world record in postage stamp collecting. The current record is 150,000. If your friends collected 10,000, 75,000, and 100 stamps, how many do you need to collect so the group of you can break the record? (use inequalities)
The person needs to have more than 64,900 postage stamps to break the record.
It is given in the question that:-
Current postage stamp collection record = 150,000
Postage stamps with the three friends are 10000, 75000 and 100.
We have to find the number of postage stamps required by him to break the record.
Let the postage stamps with him be x.
Total postage stamps with the three friends = 10000+75000+100 = 85,100
Hence, we can write the inequality,
150000 < 85100 + x
x > 150,000-85,100
x > 64,900
Hence, he needs to have more than 64,900 postage stamps with him to break the record.
To learn more about inequality, here:-
https://brainly.com/question/28823603
#SPJ1
3a+b=10
-4a-2b=2
engenuity
Answer:
Step-by-step explanation:
3a + b = 10
-4a - 2b = 2
6a + 2b = 20
-4a - 2b = 2
2a = 22
a = 11
3(11) + b = 10
33 + b = 10
b = -23
(11, -23)
a researcher is interested in the relationship between happiness and gpa of high school students. after surveying 50 students, he determines that there is a correlation between these two variables of .90. this is considered a: group of answer choices strong negative linear correlation strong positive linear correlation weak negative linear correlation weak positive linear correlation
The correlation coefficient of 0.90 indicates a strong positive linear correlation between happiness and GPA of high school students.
A correlation coefficient measures the strength and direction of the relationship between two variables. In this case, the correlation coefficient of 0.90 indicates a strong positive linear correlation between happiness and GPA of high school students.
A positive correlation means that as one variable (in this case, happiness) increases, the other variable (GPA) also tends to increase. The magnitude of the correlation coefficient, which ranges from -1 to 1, represents the strength of the relationship. A value of 0.90 indicates a very strong positive linear correlation, suggesting that there is a consistent and significant relationship between happiness and GPA.
This means that as the level of happiness increases among high school students, their GPA tends to be higher as well. The correlation coefficient of 0.90 suggests a high degree of predictability in the relationship between these two variables.
It is important to note that correlation does not imply causation. While a strong positive correlation indicates a relationship between happiness and GPA, it does not necessarily mean that one variable causes the other. Other factors or variables may also influence the relationship between happiness and GPA.
Learn more about: Coefficient
brainly.com/question/1594145
#SPJ11
There are 150 adults and 245 children at a zoo. The zoo makes a total of $4,780 from the entrance fees,
and the cost of an adult and a child to attend is $23, how much does it cost each for a parent and a child?
Let a represent an adult.
Let c represent a child.
Enter a system of equations to represent the situation, then solve the system.
The
system of equations is
and
The adult tickets cost $
and the child tickets cost $
Answer:
the entrance fee per parent is $25, while the cost per child is $6.
Combine any like terms in the expression. If there are no like terms, rewrite the expression.
9d3 + c2?
Answer:
Step-by-step explanation:
Simplifying
Step 1
9d3 + c2 If we try to combine like terms, it wont work because the exponents and its coefficients are different so we cant simplify or combine further
So therefore There are no like terms.
Hope this helps