The square of the distance between two points is the sum of the squares of the difference between two coordinates. The value of n can be -13 or 3.
What is the distance between two points?The distance between two points is given by the formula,
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
As it is given that the distance between points R and S is half the distance between points S and T.
[tex]2(RS) = ST[/tex]
Now, the distance between RS can be written as,
[tex]RS=\sqrt{[-6-(-2)]^2+[-5-(-5)]^2}\\RS = \sqrt{(-6+2)^2+(0)^2}\\RS = \sqrt{16}\\RS = \pm 4[/tex]
Further, we can write,
[tex]2(RS) = ST\\\\2(\pm 4) = \sqrt{[-2-(-2)]^2+[-5-n]^2}\\\\\pm 8 = \sqrt{(0)^2+(-5-n)^2}\\\\\pm 8^2=(-5-n)^2\\\\\pm8=(-5-n)\\\\[/tex]
When the value of 8 is positive,
[tex]+8+5=-n\\\\13=-n\\\\n=-13[/tex]
When the value of 8 is negative,
[tex]-8+5=-n\\\\-3=-n\\\\n=3[/tex]
Hence, the value of n can be -13 or 3.
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What is the area of the figure?
Step-by-step explanation:
take the rectangle as whole with dimensions 16*8
area = 128 in^2
area of rectangle of dimensions 10*2 =20
required area = 108 in^2
Evaluate (−3) ^−3
Show work for full marks. Enter your final answer in simplified fraction form.
I NEED HELPP
-1/27
Solution:If we have a number to a negative power, we flip the number over, like so:[tex]-3- > \displaystyle\frac{1}{(-3)^3}[/tex]Simplify:[tex]\displaystyle\frac{1}{-27} =-\frac{1}{27}[/tex]Hope it helps.
Do comment if you have any query.
Please help me with this math problem!! Will give brainliest!! NO LINKS PLEASE!! Thanks!! :)
Answer:
The sum of all the sides to this quadrilateral will equal a total of 20 inches, so you set up the equation:
2 + 2x + 7 + x + 2 = 20
Solve for x by combining like terms;
(2 + 7 + 2) + (2x + x) = 20
Which simplifies to;
11 + 3x = 20
Get rid of constants;
-11 -11
3x = 9
Isolate x by getting rid of it's coefficient;
/3 /3
x = 3
Now, to find the length of PQ, we plug in the value of x(3) into the equation that contains the line PQ.
x + 2
3 + 2
= 5 inches.
Now, to find the length of RS, we plug in the value of x(3) into the equation that contains the line RS.
2x
2(3)
= 6 inches.
Paul's skateboarding competition will start at 11:30 a. M. , but the competitors
must arrive at the skate park three-quarters of an hour early to warm up. The
competition must end by 1:30 p. M.
Paul says he has to be at the skate park at 9:30 a. M. Is Paul correct? Explain
your answer.
Answer:
No, Paul is not correct.
Step-by-step explanation:
The competition starts at 11:30am. 9:30am is 2 hours before.
1/4 of an hour is 15 minutes, 1/2 an hour is 30 minutes, 3/4 of an hour is 45 minutes
So, Paul needs to get there 45 minutes before the 11:30am start time.
Paul needs to get there at 10:45am
How many ways are there to write 10 to the power of 7? How many ways are there to write 10 to the power of 8? Please, I need help.
Find the median and mean
40, 4, 12, 15, 45, 16
Answer:
15.5 is the median.
The mean of the data is 22
Step-by-step explanation:
First, the median of a data set is found by sorting the numbers in order, from least to greatest. Then you count inwards one at a time on both sides until you reach a center number.
4 , 12, 15, 16, 40, 45
12, 15, 16, 40
15, 16
15.5
This means, 15.5 is the median
Next, to find the mean, you add up all the numbers and divide it by however many numbers there are. In this case there are 6 numbers, so we divide the total by 6.
40 + 4 + 12 + 15 + 45 + 16 = 132
132 / 6 = 22
The mean of the data is 22
Answer:
Mean: 22
Median: 15.5
Step-by-step explanation:
hope this helps :)
can you esplain me what angles and unit angles are?
Answer:
An angle is a space which is usually measured in degrees between two intersection lines. A unit angle is the angle which is subtend by a portion of circumstances equal in length to radius of a circle.
Which of the following statements correctly describes the items shown below?
A. Both functions are increasing and have different rates of change.
B. Both functions are increasing and have the same rates of change.
C. Both functions are decreasing and have the same rates of change.
D. Both functions are decreasing and have different rates of change.
how to turn 6/2 into proper fraction
Hey there!
6/2
= 6 ÷ 2 / 2 ÷ 1
= 3 / 1
= 3 ÷ 1
= 3
Therefore, your answer should be:
3
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
For every $1 increase in the price per scarf, Sofie's profit changes by an average of $
Answer:
True, because if price changes, dod oes average of money. So if you get 5 bucks per 10 scarfs, you'll get 5.50$ for 11 scarfs
Step-by-step explanation:
Lets just say she gets half of what the actual cost is. In total.
Answer:
This is true
Step-by-step explanation:
30 points Helppppp!! Find the value of
x
xx in the triangle shown below.
x
=
x=x, equals
∘
∘
degrees
Answer:
please see photo above for details
Levi just started a running plan where he runs 8 miles the first week and then
increases the number of miles he runs by 5% each week. If he keeps up this plan for
19 weeks, how many total miles would Levi have run, to the nearest whole number?
Answer:
244 miles (nearest whole number)
Step-by-step explanation:
We can model this as a geometric series.
General form of a geometric sequence: [tex]a_n=ar^{n-1}[/tex]
(where a is the first term and r is the common difference)
Given information:
Miles run in first week = 8Weekly increase of miles = 5%Total number of weeks in plan = 19Therefore:
[tex]a[/tex] = 8[tex]r[/tex] = 1.05[tex]n[/tex] = 19Sum of the first n terms of a geometric series:
[tex]S_n=\dfrac{a(1-r^n)}{1-r}[/tex]
Therefore, sum of the first 19 terms:
[tex]\implies S_{19}=\dfrac{8(1-1.05^{19})}{1-1.05}[/tex]
[tex]\implies S_{19}=244.3120313...[/tex]
So Levi ran a total of 244 miles (to the nearest whole number)
SIMPLE ALGEBRAICE FRACTIONS
A computer shop displays a total of 50 type A and type B mice. The cost of a type A mouse is $6 and that of a type B mouse is $13. If the total cost of both types of mice is $433, find the number of type A mice displayed.
There are 31 type A mice and 19 type B mice in the computer shop costing about $433.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Let a represent the type A and b represent the type B, hence:
a + b = 50 (1)
Also:
6a + 13b = 433 (2)
a = 31, b = 19
There are 31 type A mice and 19 type B mice in the computer shop costing about $433.
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WHat is the angle of the rotation of the following figure?
Answer:
I pretty sure it's 45 degrees from the information that you gave me.
Step-by-step explanation: The total is a circle and you have 8 little triangles. You divide 360 (what a circle is) by 8 (number of triangles). The quotient will be 45 degrees. That's the answer 45 degrees.
Luis starts to do a division problem and notices that there is a pattern in the digits to the right of the decimal point.
This number is _____.
A. Natural
B. Irrational
C. An integer
D. Rational
Answer:
D. Rational
Step-by-step explanation:
A rational number is any number that can be written as a decimal or a fraction.
Hope it helped!
HELP! WILL GIVE BRAINLEST!
Answer:
option c
Step-by-step explanation:
pi/2 is the answer
pls answer this question for me
Answer:
160 bottles of water
Step-by-step explanation:
Because c stands for how many cases of water she orders, you replace c in the equation b = 20c with 8. It would then be b = 20(8) which would be b = 160. Because b stands for the total number of bottles, that means the total number of bottles is 160.
What is the exact circumference of the circle?
•
10T ft
•
20T ft
•
40T ft
60r ft
Answer:
60r ft
Step-by-step explanation:
If it is wrong correct me if it is correct pls mark me as brainliest pls
I NEED THIS ASAP…. mathematician simplifies the expression mentally.
12(-72) +41(-3-32)
What is the best estimate of the value of the expression?
А
-2,100
B
-700
C 700
D D 2,100
Answer:
The answer is exactly -2,299. But since this is a mental math question it's okay if it's not the exact answer. The answer would be "A"
The length of a rectangle is 5 inches longer than the width. The perimeter of the rectangle is 40 inches. What is the width of the rectangle?
Explain or show work please
Step-by-step explanation:
Set the parameters,
Let the width be 'X' inhes
Therefore,
Length = "5X" inches
According to the given condition,
Perimeter = sum of the sides = 2(l+b) = 40 inches,
Equation = 2(5X+X) = 40
2(6X) = 40
12X= 40
X= 3.33
Therefore,
Width = X = 3.33 inches
MARK ME AS BRAINLISTMATH
THIS
IS URGENT PLS
3a. Area = 2 (5×7 + 5×3 + 7×3)
3b. Area = 2 (6×6 + 6×5 + 6×5)
3c. Area = 2 (6.5×10 + 6.5×3 + 3×10)
4a. Area = 2(1/2 × 4 × 6) + 2(7×5) + 7×6
4b. Area = 2(1/2 × 6 × 6) + 2(10×8.5) + 10×6
4c. Area = 2(1/2 × 10.2 × 3.6) + 15×8.3 + 15×4.5 + 10.2×15
60=4(k+3) +2(k-3) I need to try to get the variable by itself
Answer:
k=9
Step-by-step explanation:
This is what i got, tell me if i got this right.
8x + y = -16
-3x + y = -5
Answer:
Graph= (-1,-8)
y= -8
x=-1
Step-by-step explanation:
What is the area of the composite figure if ab ≅ bc ≅ cd ≅ da ≅ dn? (2π 28) mm2 (2π 32) mm2 (2π 40) mm2 (2π 48) mm2
The area of the composite figure if ab ≅ bc ≅ cd ≅ da ≅ dn is (2π + 40) mm².
What is the area of the semicircle?The area of a semicircle is the space contained by the circle. The area is the number of square units enclosed by the sides of the shape.
The area of the composite figure if ab ≅ bc ≅ cd ≅ da ≅ dn is given by adding an area of MKCD , area of ABCD, area of a semi-circle with AB as diameter.
Area of the composite figure = area of MKCD + area of ABCD + area of a semi-circle with AB as diameter.
The area of the composite figure is;
Area A = (DC + MK)/2 × DN + AB² + (1/2)×π×2²
Area A = (4 + 8)/2 × 4 + 4² + (1/2)×π×4
Area A = 24 + 16 + 2π = (2π + 40) mm²
Hence, the area of the composite figure if ab ≅ bc ≅ cd ≅ da ≅ dn is (2π + 40) mm².
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Complete the equation so that it has solutions of –5 and 7. x2 x = 0
The equation it has solutions of –5 and 7 is x^2-2x-37=0
We have equation
solutions of equation are –5 and 7.
We have to find complete the equation.
We have given that solutions of the equation are -5, 7.
The standard form of a quadratic equation.
What is the factor of the quadratic equation?
[tex](x -\alpha) (x- \beta)[/tex]
Where we have
[tex]p = -(\alpha+\beta) and q = (\alpha\times \beta)[/tex]
So, roots are
[tex]( x- (-5)) (x-7)[/tex]
[tex]p = -( -5+7)[/tex] , [tex]q =(-5)(7).[/tex]
[tex]p = -2 and q = -35.[/tex]
On substituting p and q in equation
[tex]x^2+(-2)x-37=0[/tex]
[tex]x^2-2x-37=0[/tex]
Therefore,x^2-2x-37=0 is the equation of solution -5,7.
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Answer:
-2, -35
Step-by-step explanation:
PLSSS HELP IF YOU TURLY KNOW THISS
[tex]4 \frac{2}{3} - 4 \frac{1}{3} = \\ [/tex]
[tex] \frac{1}{3} \\ [/tex]
Thus the true answer is option A .
What’s the distance between (-5,-3) and (-2,11)
Answer: 14.3178210633
Step-by-step explanation: d=√((x_2-x_1)²+(y_2-y_1)²)
A binomial experiment has 6 trials in which p = 0.85. What is the probability of getting at least 4 successes?
A) 0.9527
B) 0.9178
C)0.4554
Answer:
0.9527
Step-by-step explanation:
Once again, if Brainly would stop deleting my answer for no reason, your answer is 0.9527. OKAY! ...okay
The binomial probability for getting at least 4 successes is 0.955
What is binomial probability?The probability of exactly x successes on n repeated trials in an experiment which has two possible outcomes is called binomial probability.
Binomial probability formula[tex]P_{x} = nC_{x} p^{x} q^{n-x}[/tex]
Where,
P is the binomial probability
x is the number of times for a specific outcomes within n trials
[tex]nC_{x}[/tex] is the number of combinations
p is the probability of success in a single trial
q is the probability of failure on a single trial
n is the number of trials
Let p denote the probability of getting success in a single trial and q denotes the probability of failure in a single trial.
And let x be a random variable denoting the number of success.
According to the given question.
We have
[tex]p = 0.85[/tex]
⇒[tex]q = 1- 0.85 = 0.15[/tex]
Also,
n = 6
Therefore,
The binomial probability of getting at least 4 success
[tex]=P(x\geq 4)[/tex]
[tex]=P(x=4)+P(x=5)+P(x=6)[/tex]
[tex]= 6C_{4} (0.85)^{4} (0.15)^{2} + 6C_{5} (0.85)^{5} (0.15)^{1}+ 6C_{6} (0.85)^{6} (0.15)^{0}[/tex]
[tex]=\frac{6!}{4!21} (0.522)(0.0225)+\frac{6!}{5!1!} (0.443)(0.15)+\frac{6!}{6!0!} (0.4)[/tex]
[tex]=15(0.011)+6(0.066)+1(0.4)[/tex]
[tex]=0.165+0.396+0.4\\=0.955[/tex]
Hence, the binomial probability for getting at least 4 successes is 0.955
Thus, option A is correct.
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An equation has solutions of m = –5 and m = 9. which could be the equation? (m 5)(m – 9) = 0 (m – 5)(m 9) = 0 m2 – 5m 9 = 0 m2 5m – 9 = 0
An equation is formed of two equal expressions. The equation that has solutions of m=–5 and m=9 is (m+5)(m-9)=0.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
As it is given that the solution of m is -5 and 9. Therefore, the equation which will represent the solution of m as -5 and 9 is
(m+5)(m-9)=0
Hence, the equation that has solutions of m=–5 and m=9 is (m+5)(m-9)=0.
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help please
A ring-toss toy is composed of a rectangular prism on top of a cylinder. The rectangular prism is completely fill with water. The dimensions of the rectangular prism are shown in the diagram.
a) 90cm3
b) 208cm3
c) 29cm3
d) 480cm3
Answer:
The answer is d) 480cm³
Step-by-step explanation:
3 x 10 x 16 = 480cm³