Answers
Answer:
l=(P-2W)/2 (first answer choice lol)
Step-by-step explanation:
Related Questions
For the points given below, find (a) PQ and (b) the coordinates of the midpoint of PQ. P(0,-3), Q(7,0)
Answers
Answer:
Step-by-step explanation:
Given P(0,-3), Q(7,0), to get PQ, we will use the formula fr calculating the distance between two points expressed as;
PQ = √(x₂-x₁)²+(y₂-y₁)²
From the given coordinates, x₁ = 0, y₁ = -3, x₂ = 7, y₂ = 0
PQ = √(7-0)²+(0-(-3))²
PQ = √7²+3²
PQ = √49+9
PQ = √58
Let the coordinte of the midpoint be (X, Y)
X = x₁+x₂/2 and Y = y₁+y₂/2
Substituting the given coordinates will give;
X = 0+7/2
X = 7/2
X = 3.5
Y = -3+0/2
Y = -3/2
Y = -1.5
Hence, the coordinates of the midpoint of PQ is (3.5, -1.5)
Solve for bbb. \dfrac23b + 5 = 20 - b 3 2 b+5=20−bstart fraction, 2, divided by, 3, end fraction, b, plus, 5, equals, 20, minus, b b =b=b, equals
Answers
This question was not written properly.
Complete Question
Solve for b.
2/3b + 5 = 20 - b
Answer:
b = 9
Step-by-step explanation:
We are given the algebraic expression
2/3b + 5 = 20 - b
Step 1
Collect like terms
2/3b + b = 20 - 5
Step 2
Solve for the left hand side of the equation
2/3b + b = 15
(5/3)b = 15
Step 3
Cross multiply
5b = 15 × 3
Step 4
Divide both sides by 5
5b/5 = 45/5
b = 9
Answer: b=9
Step-by-step explanation:bc khan +]
Please help me all I need is 41,42,43. Also could u friend me I just sighned up
Answers
Answer:
trailing zeros are dropped1846 beats42×(selling price for 1 tin)Step-by-step explanation:
41. The product of 0.25 and 0.4 is 0.100, with three decimal places. Trailing zeros are usually dropped--except when they are used to indicate significant digits in a calculation. Hence, the usual presentation of the result is ...
0.25 × 0.4 = 0.1
__
42. To find total beats, multiply beats per second by seconds.
(52 beats/second)(35.5 seconds) = (52)(35.5) beats = 1846 beats
The hummingbird's wings will beat 1846 times in 35.5 seconds.
__
43. To find total sales for the week, multiply the price of a tin of popcorn by the number sold in the week (42).
Answer:
41) 0.25 × 0.4 = 0.1
It has only one decimal place in the product because 0.25 has two significant figures and 0.4 has one significant figure. When multiplying, the product will always match with the number that has the least amount of significant figures. Since 0.4 has one significant figure, the product, 0.1, will also have one significant figure.
42) 35.5 s × 52 times/s = 1,846 times
43) 42 tins × $9.25/tin = $388.50
Hope that helps.
Today you will need to look at the following problem and explain what Susan did incorrectly.
Answers
Answer:
see explanation
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x - 3)² + (y + 4)² = 36 ← is in standard form
with (h, k) = (3, - 4 ) = centre and r = [tex]\sqrt{36}[/tex] = 6
Susan interpreted the values of h and k incorrectly by using the values - 3 and 4 instead of taking the negative of them.
She also divided 36 by 2 , thus omitting the root of 36
Find the value of b. A. 75 B. 72.5 C. 145 D. 65
Answers
Answer:
B. 72.5
Step-by-step explanation:
b° = 1/2(180° - 35°)
b° = 1/2 * 145°
b° = 72.5°
b = 72.5
The value of angle b will be 72.5°. Then the correct option is B.
What is a circle?It is the center of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
The angle that the very same arc subtends at any point around the circle's periphery is the double of the angle that same arc subtends at the center.
The central angle is 35°. Then the angle at the periphery will be
⇒ 35 / 2
⇒ 17.5°
We know that the radius of the circle and tangent of the circle makes 90°.
Then the angle b is given as
b + 17.5 + 90 = 180
b = 180 – 107.5
b = 72.5°
Thus, the value of angle b will be 72.5°.
Then the correct option is B.
More about the circle link is given below.
https://brainly.com/question/11833983
#SPJ2
36m2 - 25 = 0 please show work :)! Factoring problem
Answers
a^2-b^2=(a+b)(a-b)
Therefore,
36m^2-25=(6m-5)(6m+5)
what is the value of "x" if 16-x=3
Answers
Answer:
[tex] \boxed{ \boxed{ \bold{13}}}[/tex]Step-by-step explanation:
[tex] \sf{16 - x = 3}[/tex]
Move constant to right hand side and change it's sign
⇒[tex] \sf{ - x = 3 - 16}[/tex]
Calculate
⇒[tex] \sf{ - x = - 13}[/tex]
Change the signs of both sides of the equation
⇒[tex] \sf{x = 13}[/tex]
Hope I helped!
Best regards!!
Answer: 13
Step-by-step explanation:
16-x=3
16-x-3=3-3 ⇔ subtraction property of equality
13-x=0
13-x-13=0-13 ⇔ subtraction property of equality
-x=-13
x=13
-----------------------------------
Easier way if you know how to do equation
16-x=3
-x=-13 (skip all the subtracting parts)
x=13
Hope this helps!! :)
Find the volume of the composite figure formed by a hemisphere with the radius
r = 10 cm and a cube with the side length L=
20 cm.
Answers
Answer:
8209.44
Step-by-step explanation:
CUBE: 20x20x20=8000
HEMISPHERE=2/3[tex]\pi[/tex]r²=
2/3[tex]\pi[/tex](10)²=209.44
8000+209.44=8209.44
Astronomers estimate the internal temperature of the sun is 15,000,000 K. What is 15,000,000 written in scientific notation?
Answers
Answer:
1.5 x 10^7
Step-by-step explanation:
move 7 times to the right to check answer 1.5000000
1.5 x [tex]10^{7}[/tex] is written in scientific notation.
What is scientific notation?Scientific notation is a manner of writing very huge or very small numbers. a range of is written in scientific notation whilst a variety of between 1 and 10 is extended with the aid of a strength of 10. As an example, 650,000,000 can be written in clinical notation as 6.5 ✕ 10^8. Created by means of Sal Khan and the CK-12 Foundation.
How do astronomers degree the temperature of the solar?The color of mild a star emits is associated with its temperature. This means we will determine the effective temperature of the solar by using measuring the amount of mild it emits at each wavelength and evaluating the ensuing spectrum we see in models.
Learn more about scientific notation here: https://brainly.com/question/27862246
#SPJ2
-8x+3=8x+27 I need help plz I’m trash at math
Answers
Answer:
-1.5
Step-by-step explanation:
See steps below:
-8x+3=8x+27-8x + 3 - 8x - 3 = 8x+ 27 - 8x - 3 ⇒ add -8x - 3 to both sides in order to collect like terms in the different sides of equation-16x = 24 ⇒ simplifiedx= 24/-16 ⇒ dividex= - 1.5 ⇒ answerA student took a survey of the class. There are 42 students in the class. The student surveyed favorite foods. 10 said hamburgers, 22 said pizza, 8 said french fries, and 2 said salad. Which percentage of the class chose pizza?
Answers
Answer:
52.38%
Step-by-step explanation:
Given that,
Total number of students in the class is 42
Out of 42, 10 like hamburgers, 22 like pizza, 8 like french fries, and 2 like salad.
We need to find the percentage of the class chose pizza. There are 22 student who like to have pizza. Required percentage is given by :
[tex]P=\dfrac{22}{42}\times 100\\\\P=52.38\%[/tex]
So, 52.38% of students chose pizza.
The l.c.m and h.c.f of two numbers is 9 times their HCF. The sum of LCM and HCF is 500. Find the HCF of two numbers.
Answers
Correct question:
The LCM of two numbers is 9 times their HCF .The sum of LCM and HCF is 500 . Find the HCF of two numbers.
Answer:
The HCF of two numbers is 50.
Step-by-step explanation:
let the H.C.F of the two numbers = x
let the L.C.M of the two numbers = y
y = 9x -------equation (1)
y + x = 500 -------- equation (2)
y = 500 - x
Substitute in the value of y in equation (1)
500 - x = 9x
500 = 9x + x
500 = 10x
x = 500 / 10
x = 50
Therefore, the HCF of two numbers is 50.
Answer:
50
Step-by-step explanation:
There are 2 prime factors that are different and 2 numbers that we look for that are identical when looking for prime factors.
So for numbers that don't end in 0 like 500 we can start with 3 to get 27 as one of the two numbers, then we look to see if 27 divides into that.
But for 500 it will always be numbers that end in 0 or 5 and also 1, 2 and 4
So we work with 9+1 = 10
x = 10
500/10 = 50
Which of the following expressions are equivalent to 6.53−(−4.11)+7.92
Answers
Answer:
C -(-6.53)+4.11-(-7.92)−(−6.53 )+4.11−(−7.92)minus, left parenthesis, minus, 6, point, ...
Answer: Choice B and Choise C.Step-by-step explanation: Equivalent expressions are those expressions that have the same value but they look different.
Evaluate each expression. Name the property used in each step.
Answers
1. (1 / 5)5 * 14 = 14 because 1/5 multplied by 5 is equal to 1. I believe this is called reciprocals.
2. 6 + 4 (19 - 5) = 6 + 4(19) - 4(5) = 6 + 76 - 20 = 62. This is called the distributive property.
3. 5 (14 - 5) + 6 (3 + 7) = 5(14) - 5(5) + 6(3) + 6(7) = 70 - 25 + 18 + 42 = 105. We also used the distributive property in this question.
there are 18 girls and 22 boys in a class that has a letter the probability that the owner of the letter is a boy
Answers
18 + 22 = 40 total kids.
22 are boys
Probability the letter is with a boy would be 22/40 = 11/20
somebody please help me on this geometry it is urgent!! i’ll mark you the brainliest please don’t waste answers
Answers
And the third angle inside triangle is 180-62+48=180-110=70
Which box-and-whisker plot represents this data: 6, 9, 13, 13, 18, 20, 22, 25, 26, 28, 30, 30 ?
Answers
do you want me to make you a box and whisker plot if so then here
What is 3.242424 as a mixed number
Answers
Answer:
Step-by-step explanation:
The answer is 3 /8/33.
step by step explanation
First, we can write:
x
=
3
.
¯¯¯¯
24
Next, we can multiply each side by
100
giving:
100
x
=
324
.
¯¯¯¯
24
Then we can subtract each side of the first equation from each side of the second equation giving:
100
x
−
x
=
324
.
¯¯¯¯
24
−
3
.
¯¯¯¯
24
We can now solve for
x
as follows:
100
x
−
1
x
=
(
324
+
0
.
¯¯¯¯
24
)
−
(
3
+
0
.
¯¯¯¯
24
)
(
100
−
1
)
x
=
324
+
0
.
¯¯¯¯
24
−
3
−
0
.
¯¯¯¯
24
99
x
=
(
324
−
3
)
+
(
0
.
¯¯¯¯
24
−
0
.
¯¯¯¯
24
)
99
x
=
321
+
0
99
x
=
321
99
x
99
=
321
99
99
x
99
=
3
×
107
3
×
33
x
=
3
×
107
3
×
33
x
=
107
33
Now, we can convert this improper fraction to a mixed number:
x
=
107
33
=
99
+
8
33
=
99
33
+
8
33
=
3
+
8
33
=
3
8
33
3
.
¯¯¯¯
24
=
3
8
33
Find the equation of a line through the given point A that satisfies the given condition: Point A(-2,7); parallel to the line y=-3x - 4
Answers
Answer:
y = -3x + 1
Step-by-step explanation:
slope = -3
y = mx + b
7 = -3(-2) + b
7 = 6 + b
1 = b
y = -3x + 1
solve 36x^2+23=60x using quadratic formula
Answers
Answer:
x₁ = 0.6
x₂ = 1.07
Step-by-step explanation:
36x² + 23 = 60x
36x² - 60x + 23 = 0
x = {-(-60)±√((-60²)-(4*36*23))} / (2*36)
x = {60±√(3600-3312)} / 72
x = {60±√288) / 72
x = {60±16.97) / 72
x₁ = {60-16.97} / 72 = 43.03/72 = 0.6 aprox.
x₂ = {60+16.97} / 72 = 76.97/72 = 1.07 aprox.
verify:
x₁
36*0.6² + 23 = 60*0.6
36*0.36 + 23 = 36
13 + 23 = 36
x₂
36*1.07² + 23 = 60*1.07
36*1.145 + 23 = 64.2
41.2 + 23 = 64.2
perimeter of a regular pentagon is 5 times the length of its side
Answers
Answer:
True
Step-by-step explanation:
A regular polygon is a polygon that is equiangular and equilateral.It means the perimeter of it is 5 times the length of its side.
The answer is yes, the statement is TRUE.
what is your average speed if you drive 100km south and then 130km east and it takes 3.25 hours give your answers in km/hr and ft/sec
Answers
Answer:
Answer:
speed = 43.974 miles per hour
= 43.974 mi/h
Step-by-step explanation: speed calculator
Janet deducted $5 on Monday and another $6 on Tuesday from her savings account. write an expression that represents the change in her account balance after the deductions . How much money did Janet deduct?
Answers
Answer: x -11 is the expression and she deducted 11 dollars
Step-by-step explanation:
Let's say x represent the the total amount of money in her savings account.So if 5 and 6 dollars we deducted will have the expression
x - 5 -6 or x -11
In this case Janet deducted 11 dollars.
solve the simultaneous equations
2p- 3q= 4
3p + 2q= 9
Answers
Answer:
q = 6/13, p = 35/13
Step-by-step explanation:
3p + 2q = 9
2p - 3q = 4
_________ (subtract the two equation from each other.)
p + 5q = 5
p = 5 - 5q
2(5 - 5q) - 3q = 4 (substitute value of p into equation)
10 - 10q - 3q = 4
10 - 13q = 4
-13q = -6
q = 6/13
3p + 2(6/13) = 9 (substitute value of q into equation)
3p + 12/13 = 9
3p = 105/13
p = 35/13
The children from a football club are put into rows in the sports hall. When put in rows of 6 children, there are 3 children left over. When put in rows of 8, there are 3 children left over. What is the least number of children in this football club
Answers
Answe:
27
Step-by-step explanation:
Let total children =x
when x divide by 6 we got 3
and when divide by 8 we also got 3
since x divided by both 6 and 8 got 3, we can use LCM to find the number to children in the club exclude the 3 player. you will get 24 and by adding 3 the total players that you will get is 27
Select all sets in which the number - 14 is an element
A whole numbers
B. irrational numbers
C. real numbers
D. natural numbers
E integers
E rational numbers
Answers
Answer:
The answer is: Integers, Rational numbers, and Real numbers.
Step-by-step explanation:
Following are the description of the numbers:
The whole number is the collection of the natural numbers which includes 0 also.Irrational numbers are those which can't be stated as the ratio of two whole numbers. Real numbers are numbers that can be stated in an infinite decimal expansion. It contains both rational and irrational numbers.Natural numbers are those which includes only positive value except 0.Integer, whole-valued positively or negatively integer, or 0.Rational numbers are numbers that may be expressed as the quotient [tex]\frac{p }{q}[/tex]of two integers so that [tex]q\neq 0[/tex].That's why, the choice is "C, E, and F" which are Real numbers, Integers, and Rational numbers are correct.
Learn more:
Numbers: brainly.com/question/3589540
what does GEMDAS stand for
Answers
answer/explanation: GEMDAS stands for grouping, exponent, multiplication, division, addition, and subtraction (order of operation in math)
if this helps, please click the “thanks” button”
- emily :)
Answer: Hi!
GEMDAS is the guideline that you would use to solve a algebraic expression. It tells you the order of which things you should solve or simplify first.
G. Groupings. (There is a similar expression called PEMDAS that is a bit easier to understand, where the P stands for parentheses, brackets, etc.)
E. Exponents.
MD. Multiplication and Division, right to left.
AS. Addition and Subtraction, right to left.
Hope this helps!
What is the value of x in the equation 2(5x + 4) = 17? (5 points) a start fraction five over two end fraction b start fraction two over five end fraction c start fraction nine over 10 end fraction d start fraction 17 over 18 end fraction
Answers
You win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. At the time, gold is selling for $1282 per troy ounce, and 1.0000 troy ounce equals 31.1035 g. How tall would your million-dollar cube be?
Answers
Answer:
The million dollar cube will be 10.79 cm tall
Step-by-step explanation:
Let the sides of the gold cube representing the tallness of the cube be s
volume of the gold cube V = s³
Then :
[tex]\mathbf{s = \sqrt[3]{V} }[/tex] --- (1)
Similarly; we know that , density ρ = mass m/Volume V
making volume the subject of the formula, then ;
V = m/ρ
Replacing that into (1) above , we have:
[tex]\mathbf{s = \sqrt[3]{\dfrac{m}{\rho}} }[/tex]
Given that:
At the time, gold is selling for $1282 per troy ounce
∴ In a million-dollar cube of gold, the number of troy ounce that can be bought with a million dollar = 1000000/1282 = 780.03 troy ounce
Since 1.0000 troy ounce equals 31.1035 g
∴ 780.03 troy ounce = 780.03 × 31.1035 g
= 24261.66 g
From the tables 12.1 of Gold , the density of Gold is obtained as 19.3 g/cm³
∴
[tex]\mathbf{s = \sqrt[3]{\dfrac{m}{\rho}} }[/tex]
[tex]\mathbf{s = \sqrt[3]{\dfrac{24261.66}{19.3}} }[/tex]
[tex]\mathbf{s = \sqrt[3]{1257.080829} }[/tex]
[tex]\mathbf{s = 10.79 \ cm }}[/tex]
The million dollar cube will be 10.79 cm tall
Math problem: If Alexander the Great had lived 9 years more his reign would have lasted 1/2 his life, while if he had lived 9 years less his reign would have lasted 1/8 of his life. How old was Alexander when he died? And how long did he reign?
Answers
Answer: lived 48 years
reigned for 15 years
Step-by-step explanation:
Let x represent the number of years he reigned.
Let y represent Alexander's age.
Use the given information to create a system of equations:
Equation 1: x + 9 = (1/2)y
Equation 2: x - 9 = (1/8)y
Multiply the second equation by -1 and add the equations to eliminate x:
[tex].\quad x+9=\dfrac{1}{2}y\\\\\underline{-x+9}=\underline{-\dfrac{1}{8}}y\\\\.\qquad 18=\dfrac{3}{8}y\\\\.\qquad 48=y[/tex]
Input y = 48 into either equation to solve for x:
[tex].\quad x+9=\dfrac{1}{2}(48)\\\\.\quad x+9 = 24\\\\.\qquad x = 15[/tex]