Answers
Answer:
x = 4, x = 8
Step-by-step explanation:
(9)
Given 2 secants from an external point to the circle, then
The product of the external part and the whole of one secant is equal to the product of the external part and the whole of the other secant, that is
x(x + 6) = 5(5 + 3)
x² + 6x = 5 × 8 = 40 ( subtract 40 from both sides )
x² + 6x - 40 = 0 ← in standard form
(x + 10)(x - 4) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 10 = 0 ⇒ x = - 10
x - 4 = 0 ⇒ x = 4
x > 0 then x = 4
(11)
Given a secant and a tangent from an external point to the circle, then
The square of the tangent is equal to the product of the external part and the whole of the secant, that is
x(x + 10) = 12²
x² + 10x = 144 ( subtract 144 from both sides )
x² + 10x - 144 = 0 ← in standard form
(x + 18)(x - 8) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 18 = 0 ⇒ x = - 18
x - 8 = 0 ⇒ x = 8
x > 0 then x = 8
Related Questions
SERE
RE
a.
Which of the following equations correctly describes how to calculate gross profit?
gross profit = (net sales) - (cost of goods sold)
b. gross profit = (cost of goods sold) - (net sales)
gross profit = (net income) - (operating expenses)
d. gross profit = (operating expenses) - (net income)
C.
Answers
Answer:
Step-by-step explanation:
d.
net income = (net sales) - (cost of goods sold) - (operating expenses)
i hope I’m right lol
Answer:
its a. gross profit = (net sales) - (cost of goods sold)
Step-by-step explanation:
Please help me. its due in 15 minutes.
Answers
Answer:
sorry
Step-by-step explanation:
Answer:
$3,685.9
Step-by-step explanation:
Match each equation with its graph. Use the graph of
y= x, shown in red, to help.
Answers
Answer:
igggg
Step-by-step explanation:
hfghggghvvhhhgghu
Simplify 6 - 3y + (-8y) + 5.2.
Answers
Answer:
−11y+11.2
Step-by-step explanation:
on a map, the length of a nature center Trail is 6.5 cm. If the scale is 2 cm to 10 km oh, what is the actual Trail? BRAINLY
Answers
Answer:
32.5 km
Step-by-step explanation:
6.5 / 2 = 3.25
3.25 x 10 = 32.5 km
Hope that helps!
Answer:
32.5 km
Step-by-step explanation:
Our ratio is 2cm: 10km
We can also write a ratio to look like a fraction. I'm attaching a picture. Sometimes it's easier to see that way.
We cross-multiply, then divide.
Ask any questions in the comments.
6x + 6y=-6
5x + y=-13
Answers
Answer:
(-3, 2)
x=-3, y=2
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation. and thats how you get your answer :)
The value of x is -3 and value of y is 2.
The given equations are:
6x + 6y=-6 ..(1)
5x + y=-13...(2)
From equation (2)
y=-13+5x..(3)
Plug in equation in equation (1):
6x + 6(-13+5x)=-6
6x-78+30x=-6
24x=-72
Divide both sides by 24:
x=-72/24
x=-3
Now put x=-3 in equation (2):
5(-3) + y = -13
-15 + y = -13
y = -13 + 15
y = 2
Hence, the value of x is -3 and value of y is 2.
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ6
(FOR BRAINLIEST!!!)
Type the correct answer in the box.
The line of best fit for this scatter plot shows the relationship between the average temperature and the monthly electricity bill at Jenny's house.
Answers
Answer:
Around 200 Dollars
Hope it helps
Answer:
$200
Step-by-step explanation:
Nun the same without u, U stoke in my mind. I can't stop think about u. I can't go to sleep. imma wake 24/7 . I'll be call-in my homie to punch me to sleep. That shii hurts. I see ur face on my walls staring at me . Lucid Dreams, Lucid Dreeeaams . My head going crazy. I think I'm going insane. I- I- I can't stop thinking about u. I take pills for this shii. um oh oh ahhaa. I got Draco on my side.
Answers
Answer:
uhhhhhhh nice
Step-by-step explanation:
Answer:
Just why
Step-by-step explanation:
A line passes through (-3, 6) and has a slope of -5.
What is an equation of the line?
Answers
Answer:
y=-5x-9
Step-by-step explanation:
y-y1=m(x-x1)
y-6=-5(x-(-3))
y-6=-5(x+3)
y=-5x-15+6
y=-5x-9
I need help mate.
You have $75 and need to buy 9 books at the bookstore and each book costs d dollars.
Write an algebraic expression to represent the amount of money left over.
Answers
Answer:
75-9d
Step-by-step explanation:
Hello,
The Answer to the question is 75-9d let me explain why,
you are asking, how much money is leftover. For me to get that I need to know that for every book it cost "d" dollars.
You know you have $75, and you need 9 books, we don't know how much they cost but we don't really need to.
75 - 9d
75 is the total. You need to subtract it by how many books your buying, 9.
The books are d amount of dollars, so we put 9d so that we know that for every 1 book it cost d amount so technically 9 is the amount of books times d, how much 1 book costs
Hope you can understand, I was having some trouble finding a way to explain it so my bad.
Also, I haven't done that in a while so sorry if I'm wrong
-Nova
Question 10 of 10
A triangle has two sides of lengths 4 and 7. What value could the length of
the third side be? Check all that apply.
DA. 11
✓ B. 7
C. 3
DD. 5
DE. 17
DE 9
SUBMIT
Answers
9514 1404 393
Answer:
B, D, F
Step-by-step explanation:
The length of the third side must lie strictly between the sum and difference of the given lengths. If the third side is x, you must have ...
7-4 < x < 7+4
3 < x < 11
The numbers in the list of choices that lie between these limits are 5, 7, 9, choices B, D, F.
56 es racional o irracional
Answers
Answer:
racional
Step-by-step explanation:
56 = 56/1 = 112/2
racional
I NEED HELP LIKE NOW!!!! PLEASE!
Rewrite y = sqrt16x+80 - 4 to make it easy to graph using a translation. Describe the graph.
Thank you!
Answers
Answer:
Wat w Polsce i w sumie to nic innego niż
The slope of a line is and the y-intercept is (0, 6). What is the equation of the line in slope-intercept form?
Answers
Answer:
y=x+6
Step-by-step explanation:
PLEASE HELP ASAP
What is the area of this polygon?
Answers
Answer:
45
Step-by-step explanation:
The area can be found by sectioning the polygon into three shapes. A rectangle with an area of 18 inches can be found at the bottom, while the top can be divided into two triangles. The triangle on the left has an area of 18in^2, (1/2*6*6) while the triangle on the right has an area of 9 in^2 (1/2*6*3).
Total area for all three shapes is 45 sq. inches
4x - 10 = 22
two step equations(integers)
Answers
the answer is x=8
I hope this helped
okay this is my last one.. I think dfghmhgfd
Answers
We know that :
[tex]\color{hotpink} \tt \: circumference \: of \: a \: circle\color{plum} = 2\pi r[/tex]
So, let the diameter of this circle be x.
Which means :
[tex] =\tt2 \times \pi \times r[/tex]
[tex] =\tt 2 \times x \times \pi = 12\pi[/tex]
[tex] =\tt 2x\pi = 12\pi[/tex]
[tex] =\tt x = \frac{12}{2} [/tex]
[tex] = \tt \: x = 6 \: m[/tex]
Thus, the radius of the circle Robert drew = 6 m
Since the circle in option B has a radius of 6 m, it is the circle Robert drew.
▪︎Therefore, the correct option is (B)
2 of 6
calculator
- Get help
Given that AB is a line segment and the angle y = 47°,
work out the value of the angle marked X.
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Answers
Answer:
ddgklkmbxawryunnvxzfdszAaefgu
The temperature at 12 am was 44 degrees. The temperature dropped steadily for the next 8 hours to reach the daytime low of 20 degrees. What was the temperature at 6 am?
Answers
Answer:
62 degrees
Step-by-step explanation:
Points (12,440 and (20,20)
Slope = -3
Equation of line: y - 44 = -3(x - 12)
Plug in x = 6 to get y = 62.
In a class of 25 students, 16 had at least one pet. What percent is that?
-32%
-40%
-64%
-80%
Answers
Answer:
-64%
Step-by-step explanation:
Hope this helps you
Answer:
64%
Step-by-step explanation:
25 x 0.64 = 16
Suppose lifetime of certain type of car batteries are
normally distributed. Brand G has a mean lifetime of three years and
a standard deviation of one year. Brand M has a mean lifetime of 36
months and a standard deviation of four months.
(a) Which brand is more reliable and why?
(b) Pick one battery from each brand randomly, which one has a
better chance to last for four years and why?
Answers
Answer:
Follows are the solution to the given points:
Step-by-step explanation:
The brand (M) will become more reliable as the standard deviation of an (M) brand will be much lower than the standard deviation of (G) brand.
such as four years,
Calculating the z score for G brand[tex]= \frac{(4-3)}{1} = \frac{1}{1} = 1[/tex]
Calculating the z score for M brand[tex]= \frac{(4-3)}{(\frac{1}{3})} = \frac{(1)}{(\frac{1}{3})} = 1 \times \frac{3}{1}= 3.[/tex]
Because the z mark of the (G) brand is less, it is much more probable that the (G) Brand could last four years. It is because the variability of the (G) brand is very high, which allows lasting longer by expanding its expansion.
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honey i'm home
Answers
Answer:
W t f
Step-by-step explanation:
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Lanu draws a rectangle that is 10 inches wide and 20 inches
long. Which rectangle described below has the same area?
F 5 inches wide and 25 inches long
G 8 inches wide and 25 inches long
H 15 inches wide and 15 inches long
J 15 inches wide and 25 inches long
Answers
Answer:
G
Step-by-step explanation:
A 10 x 20 inch rectangle has an area of 200 square inches. Therefore, we must find the rectangle that is also 200 square inches.
The formula of finding the area of a rectangle is multiplying width times length.
F) 5 * 25 = 125
G) 8 * 25 = 200
H) 15 * 15 = 225
J) 15 * 25 = 375
Therefore, rectangle G has the same area, since it is also 200 square inches.
What are 2 equivalent ratios for 3/38
Answers
Answer:
6/38, 9/38 are two
Multiply by 2 and 3 DONT multiply the denominators when multiplying.
use the circle below to find the angle measures and arc measure
Answers
Answer:
We'd need to see the full circle to answer
Step-by-step explanation:
Hi guys can you answer my math question
Answers
Answer:
Any 3 trinalges
Step-by-step explanation:
total triangles= 9
1/3 of 9 = 1/3 x 9 = 3
So, shade 3 triangles
I hope im right!1
Step-by-step explanation:
There are total 9 parts of the triangle
⅓ of 9 is 3.
Therefore shade any 3 parts.
2.)
Find the perimeter of an isosceles triangle whose base is 16 cm and whose height is 15 cm.
Answers
Answer:
50 cm
Step-by-step explanation:
The altitude from the vertex to the base bisects the base and divides the triangle into 2 right triangles.
Using one of the right triangles with legs 8 and 15 , then hypotenuse h is
h² = 8² + 15² = 64 + 225 = 289 ( take the square root of both sides )
h = [tex]\sqrt{289}[/tex] = 17
The 2 congruent sides of the isosceles triangle are 17 cm
Then the perimeter P is
P = 17 + 17 + 16 = 50 cm
some body can help me with math please
Answers
Answer: okkkkkk
Step-by-step explanation:
How can I help you?............
12. Three friends went to an ice cream parlor for ice cream. They each paid $3.51 for their ice
cream, including an 8% sales tax.
What was the total cost of all three bowls of ice cream before tax was added?
$
Answers
Answer:
total cost - $3.23 per icecream cone no tax // cost is $9.69 all 3 ice cream cones no tax // solve by multiplying .08 by $3.51. you get .28 // subtract that from $3.51 to solve
Death Star shoots at Earth! Earth explodes! No survivors!
Answers
Answer:
WHY?
Step-by-step explanation:
i need 1 MORE BRAINLIEST!!!