Answer:
-b +/- √b^2-4ac
_____________
2a
Sophia was going out to eat with some of her friends. The bill for the food
was $62. They wanted to leave a 20% tip. What was the total that Sophia
and her friends paid? Explain how you found your answer.
Answer:
$12.40
Step-by-step explanation:
You can set this up as .20 x 62 which will give you $12.4 or $12.40. You get .20 by converting 20% to a decimal. Also you can simply put 60-20% on a calculator.
Find the value of k so that the point (1,2) lies on the locus y²-2x-ky+5=0.
What is math trying to do with me?
seriously
:^
Answer:
1.
Y would equal to 449 after plugging in 12 for x
2.
Y would equal to 239 after plugging 7 in for x
Step-by-step explanation:
We just have to plug in the values give too us and find what y equals.
1.
y=42(12)-55
y=504-55
y=449
2.
y=42x-55
we just have to plug in 7 for x.
y=42(7)-55
42*7=294
y=294-55
y=239
The area of a gym is 2,952 m2. If the width of the gym is 41 m, what is the length of the
gym?
Answer:
72m
Step-by-step explanation:
Given data
Area= 2,952 m^2
Width=41m
We know that
Area= Length*width
Substitute
2,952= Length*41
Length= 2,952/41
Length= 72m
Hence the width is 72m
please help...
Https://brainly.com/question/23389243?answeringSource=feedPublic%2FhomePage%2F21
Answer:
the link doesn't work.....
An object is placed at a certain distance on the principal axis of a concave mirror. The image is formed at a distance of 30cm from the mirror. Find the object distance if radius of curvature R=15cm.
Answer:
Object distance, u = -6 cm
Step-by-step explanation:
Given that,
The radius of curvature, R = 15 cm
The radius of the mirror, f = -7.5 cm
We need to find the object's distance from the mirror. The mirror's formula is used to find the object distance such that,
[tex]\dfrac{1}{f}=\dfrac{1}{u}+\dfrac{1}{v}\\\\\dfrac{1}{u}=\dfrac{1}{f}-\dfrac{1}{v}\\\\\dfrac{1}{u}=\dfrac{1}{(-7.5)}-\dfrac{1}{30}\\\\u=-6\ cm[/tex]
So, the object distance is 6 cm.
there is nothing that tells me what to do. or what to solve for
Step-by-step explanation:
I think it's wrongly labelled
but lemme adjust it and get you back on track
this is a quadrilateral which angles sum upto 360°.
this hold when <D=84°,<N=74° <M=82 and <L=3x+20
84+74+82+3x+20=360
3x+260=360
3x=100
x=100/3
x=33. 3°
write the equation of the line in fully simplified slope intercept form
The equation of a line can be written in both slope-intercept form and standard form.
Write the equation of the line in fully simplified slope intercept form?The equation of a line in slope intercept form is written as y = mx + b, where m is the slope of the line, and b is the y-intercept of the line.The simplified form of the equation of a line is obtained by first identifying the slope of the line. The slope of a line is the ratio of the vertical change (rise) over the horizontal change (run). The slope of a line is written as m = (y2 - y1)/(x2 - x1).Next, the y-intercept of the line is found. The y-intercept is the point where the line intersects the y-axis. To find the y-intercept, substitute the slope into the equation of the line and solve for b.Once the slope and y-intercept have been determined, the equation of the line can be written in fully simplified slope intercept form as y = mx + b.For example, if the slope of a line is 4 and the y-intercept is 6, then the equation of the line in slope intercept form is y = 4x + 6.To learn more about slope intercept form refer to:
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HELP!!! I WILL GIVE YOU 24 POINTS!!!THINK SMaRTER| Sense or Nonsense? . Emilio and Julia used different ways to find ‡ + 4. Emilio used a rodel to find the quotient. Julia used a related multiplication equation to find the quotient. Whose answer makes sense? Whose answer is nonsense? Explain your reasoning.
Answer:
24
Step-by-step explanation:
24 it's could be ok. I think 24 is good.
Answer: I think it's nonsense??? Not quite sure...
Step-by-step explanation:
Which pair of lines appears to be perpendicular?
ОА.
+XI
B
HELP DUE IN 10 MINS!
Solve for the value of x and find the length of the midsegment of the trapezoid below.
x =??
Answer:
x = 15Step-by-step explanation:
Midsegment of the trapezoid is half the sum of the bases:
4x + 5 = (2x + 15 + 4x + 25)/24x + 5 = 3x + 204x - 3x = 20 - 5x = 15If 5 inches is added to both the length and the width of a rectangle, then the
perimeter is increased by -
Answer
the perimeter is increased by 5
Step-by-step explanation:
If 5 inches is added to both sides of the rectangle. Then the perimeter of the rectangle is increased by 20.
What is the perimeter of the rectangle?Let W be the rectangle's width and L its length.
The perimeter of the rectangle will be defined as the total length of all of its sides. So the rectangle's perimeter will be
Perimeter of the rectangle = 2(L + W) units
If 5 inches is added to both the length and the width of a rectangle.
Then the new perimeter of the rectangle is given as,
P = 2[(L + 5) + (W + 5)]
P = 2[L + W + 10]
P = 2(L + W) + 20
If 5 inches is added to both sides of the rectangle. Then the perimeter of the rectangle is increased by 20.
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is 32% greater then 0.23?
Answer:
yes
Step-by-step explanation:
32% is the same as 0.32
0.23 is the same as 23%
You start driving east for 14 miles, turn left, and drive north for another 6 miles. At the end of driving, what is your straight line distance from your starting point? Round to the nearest tenth of a mile.
Answer: 15.2
Step-by-step explanation:
(14)^2 + (6)^2 = c^2
196 + 36 = c^2
232 = c^2
Square root both sides
15.231546 = c
15.2 ≈ c
The distance of the straight line from the starting point by the is is 15.2 miles.
What is the distance of a point from a line?The distance between a point and a line is the shortest distance between them.
Pythagoras TheoremIt states that if a triangle is right-angled (90 degrees), then the square of hypotenuse is equals to the sum of the squares of the other two sides.
Pythagoras Theorem EquationIf ΔOAB is a right angled triangle, right angle at A
then the Pythagoras equation will be
[tex]OB^{2} =AB^{2} +OA^{2}[/tex]
(where OB, OA and AB are the length of the sides of triangle OAB)
According to the question
We have to find ,the distance of straight line from the starting point.
From, the provided figure we can conclude that OB is the straight line whose distance to be find
In ΔOAB, we have
[tex]OB^{2} =OA^{2} +AB^{2}[/tex] (By Pythagoras theorem)
[tex]OB^{2} =14^{2} +6^{2}[/tex]
[tex]OB^{2} =196+36[/tex]
[tex]OB=\sqrt{232} \\OB= 15.23 miles[/tex]
[tex]OB=15.2 miles[/tex]
Hence, the distance of straight line from the starting point is 15.2 miles.
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help!!
[tex]\sqrt{400-400}[/tex]
Thanks!!
have a nice day!
[tex] \huge \boxed{\mathfrak{ \: hi \: \: james}}[/tex]
[tex] \huge \mathcal{Answer}࿐[/tex]
[tex]\longmapsto \sqrt{400 - 400} [/tex]
[tex]\longmapsto\sqrt{0} [/tex]
[tex]\longmapsto0[/tex]
Answer:
[tex]\sqrt{400-400} =0[/tex]
Step-by-step explanation:
hope it helps...
thanks...
have a great day!!
Which properties are best used prove a quadrilateral is a square?
a) Adjacent sides are perpendicular.
b) Diagonals are congruent.
c) Diagnonals are congruent and perpendicular.
d) Opposite sides are parallel and congruent.
Answer:
a, b, c, & d
Step-by-step explanation:
Use the picture of the circle below to find the area of the circle. Use 3.14 for π and show your work.
Answer:
254.34 in^2
Step-by-step explanation:
To calculate the Area of Circle is πr^2
r is the radius of the circle
In this problem, the diameter is given which is 18 in. To find the radius you have to divide the diameter by 2.
18/2 = 9 in is our radius
Area of Circle = π9^2
= 3.14*81
= 254.34 in^2
A flagpole on level ground casts a shadow 13 meters long when the sun is 26° up from the horizon. How tall is the flagpole?
Answer:
x= 23780. 6. An airplane climbs at an angle of 18° with the ground. Find the ground distance the plane travels as it moves 2500 m through the air.' 2378m. 1. lighthouse .
Step-by-step explanation:
Answer:
Approximately 6.3405 feet
Step-by-step explanation:
Our trigonometric ratio will be tangent in this case, since we are working with the opposite and adjacent sides.
Our equation that we set up will end up being [tex]tan\theta=o/a[/tex]
[tex]tan(26)=x/13[/tex]
[tex]13tan(26)=x[/tex]
[tex]13(0.4877) = x[/tex]
[tex]x=6.3405[/tex]
Ayesha earns a 10 percent bonus based on her annual salary plus the number of sales shes earned and a 2,000 dollar bonus last year
The annual salary will be 49750
Gross salary would be the total amount of compensation that an employer or business pays an employee during their employment. The Cost of Company, as well as CTC, on the other hand, would represent the overall compensation of employees. The CTC seems to be an employee's gross pay, but their net compensation is how much they actually take home.
Now, According to the question:
Let x be the annual salary.
Then 10% of x+250 equates 0.1(x+250).
Thus, the bonus equates $5000, then we will get the equation:
0.1(250 + x) = 5000
Solving for 'x' we get:
250 + x = [tex]\frac{5000}{0.1}[/tex]
250 + x = 50000
x = 50000 - 250
x = 49750
CTC and gross salary are sometimes confused. But there is a distinction among the two. Before taxes, Employee Provident Fund (EPF) contributions, and gratuities deducted from the CTC, the amount paid to the employee would be known as their gross salary.
The complete question is this:
__"Ayesha earns a 10% bonus based on her annual salary plus the number of sales she makes. She made 250 and earned a $5,000 bonus last year. Write and solve an equation to find her salary last year__"
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if anybody knows the answer please help!!!
Answer:
C!
Step-by-step explanation:
Ive done a test about this type of math! Its easy just a few ears and notes!
The number of homeruns hit by each player on the Bobcats baseball team is listed below. Which measure of center best describes the approximate number of homeruns hit by a typical Bobcat player? 12, 8, 4, 3, 3, 2, 2, 2, 0
If someone could pls help me with this that would be great!!
Maisy and Oliver converted some pounds (£) into euros (€) at two different shops. Maisy converted £40 into €47.20 at shop A. Oliver converted £83 into €96.28 at shop B. Byron converted some pounds at one of these shops and received €68.44. What is the smallest amount that he could have converted?
The smallest amount that Byron could have converted is £73.44.
What is exchange rate?An exchange rate is the rate at which one currency can be exchanged for another currency. It is the value of one country's currency against another country's currency. Exchange rates fluctuate based on supply and demand for a particular currency, as well as economic and political factors.
Exchange rates are typically quoted as the value of one currency in terms of another currency. For example, an exchange rate of 1.2 US dollars (USD) to 1 Euro (EUR) means that 1 EUR can be exchanged for 1.2 USD.
There are two types of exchange rates, Floating and Fixed exchange rate.
According to question :-
To determine the smallest amount that Byron could have converted, we can use the exchange rate from shop A, which is €47.20 for £40.
If we divide the amount of euros he received (€68.44) by the exchange rate (€47.20 for £40), we get:
€68.44 ÷ €47.20/£40 = £73.44
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What value will make the equation true? Show your work or explain how you found your solution. - 2.1 - x = -1.5.
Answer:
The Answer is 0.6
Step-by-step explanation:
Another way to do it is (-2.1) - (-1.5)
A rectangular con lot of land is 0.4 kilometer long and 0.07 kilometer wide. What is its area in square kilometers?
Answer: 0.28 Km^2
Step-by-step explanation:
A= L x W
=0.4x0.7
=0.28
whats the volume of this shape
r-11cm
h-16 cm
Answer:
you know who else like the shape my mom
Suppose you choose a marble from a bag containing 2 red marbles, 2 white marbles and 6 blue marbles. You return the first marble to the bag and choose again. Find p (red then blue)
A.4/5
B.6/5
C.3/25
D.2/5
Answer:
3/25
Step-by-step explanation:
There are 10 marbles in the bag, all equally likely to be chosen.
P(red) = 2/10 = 1/5
P(blue) = 6/10 = 3/5
Multiply these (red then (and) blue) = 1/5 x 3/5 = 3/25
A bottle of water is 2/3 full. You drink 1/2 of the water. find the portion of the bottle of water that you drink.
help me pls!!! 8th grade math. it’s due today ;-;
Making connections between arithmetic sequences and linear function
Use the graph or the formula to write the equation of the line in a slope intercept form
Arithmetic sequences are those in which the difference between each subsequent phrase is a fixed number. This is shown by writing the equation for a line as y = mx+c, where m denotes the slope and c the y-intercept.
What is the relationship between arithmetic sequences and linear functions?The origin is the place where the X and Y axes always meet. Point (0, 0) on the XY plane is where the origin is situated. The XY plane is divided into four distinct quadrants using symmetry and the origin.Our origin will not be in the specified place if we added negatives to the axes as in the example presented. This indicates that the XY plane's four quadrants are not properly separated.This means that, as seen in the provided illustration, we are unable to include negatives on the axes. It primarily involves incorrect notation. A linear function is an algebraic sequence. Where d represents the common difference and c is a constant, we write an=dn+c in place of y=mx+b.To learn more about arithmetic sequences refer to :
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