find the value of x:
151° Have a great day/night!
Help me with my math please!!!!
Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught about math in it so it might help you.
Find the vertex of the quadratic equation f(x) = x2 - 4x - 10
Answer:
2
Step-by-step explanation:
Answer:
vertex = (2, - 14 )
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
(h, k) are the coordinates of the vertex and a is a multiplier
Given
f(x) = x² - 4x - 10
Using the method of completing the square
add/ subtract ( half the coefficient of the x- term )² to x² - 4x
f(x) = x² + 2(- 2)x + 4 - 4 - 10
= (x - 2)² - 14 ← in vertex form
with vertex (h, k ) = (2, - 14 )
Ms.Keller is racing bob to see who can read the book faster. the book has 342 pages ms. Keller has already completed 300 pages. If she reads 2 pages per min how mint min will it take her to Finnish the book
Answer:
21 minutes
Step-by-step explanation:
Ms.Keller is speed reading a book that has 342 pages, she has already completed 300 of them and can read 2 pages per minute. The question is asking how long it'll take her to finish this book.
So we know the vital information that Keller reads two pages per minute and she only has 42 pages left of the book, this is all we need to answer the question.
All we need to do is divide 42 by 2 :
42 / 2
21
Therefore, it'll take Ms.Keller 21 minutes to finish the book at the constant speed
Help!! I don’t know the answer
Need help ASAP giving 35 points and a branleist to the people who solve this right
Write the equation of the parabola in vertex form.
Vertex:(4,4)
Point :(2,-8)
Answer:
Step-by-step explanation:
y = a(x-4)^2 + 4
Plug in (2,-8) and solve for a:
-8 = a(2-4)^2 + 4
a = -3
y = -3(x-4)^2 + 4
How do you solve the equation: 7x = 26
Divide by 7 on both sides
Divide by 26 on both sides
Multiply by 7 on both sides
Multiply by 26 on both sides
Answer:
Divide by 7 on both sides
Step-by-step explanation:
7x is a coefficient so you divide by 7
Ohnny loves hats and has collected them for years. 1/4 of his hats are baseball hats and 5/8 of his hats are fishing hats. What fraction of his hat collection is baseball hats or fishing hats?
Answer:
the letters of the
Step-by-step explanation:
Carolyn is sewing a border around a rectangular quilt that is 80 inches long and 60 inches wide. How many inches is the border?
Answer:
280 inches
Step-by-step explanation:
Find the value of the variable. If your answer is not an integer, leave it in simplest radical form.
Answer:
[tex]\frac{13}{\sqrt{2}}[/tex] or 9.19 (approximately). I am confused how the question is asking for it to be typed, so it might be this: [tex]\frac{13}{\sqrt{2}}[/tex] , but if you cannot type that in, then maybe it is sin(45) * 13.
Step-by-step explanation:
The three main trigonometric ratios are: sine (o/a), cosine (a/h), or tangent (o/a) depending on the given. To help you remember them, you can use the saying SOH CAH TOA, which is sin = opposite/hypotenuse, cosine = adjacent/hypotenuse, and tangent = opposite/adjacent.
In this problem, we are going to use one that has the hypotenuse, which rules out tangent, and leaves us with sine or cosine. Since, we are given the hypotenuse and the opposite side (from angle 45), we will be using sine. Then we just need to set up the trigonometric ratio:
sin (45) = x/13
Then, you need to get x by itself, so you multiply 13 on each side, which leaves you with:
x = sin(45) * 13 = 9.19 (approximately)
This could also be seen as a special right triangle, where the hypotenuse is [tex]x\sqrt{2}[/tex], and the two sides are x.
So, to find the value of x, you could also do this: 13/[tex]\sqrt{2}[/tex], which might be how the question wants it formatted.
Good luck!
Find three consecutive even integers such that the sum of the smallest and twice the
second is 20 more than the third. PLEASE SHOW THE WORK ILL GIVE BRAINLIEST
Answer:
10,11,12
Step-by-step explanation:
X+x+1+x+2
X+2(x+1)=x+2 + 20
X +2x+2 = x+22
3x+2 = x+22
2x +2 = 22
2x = 20
X = 10
Numbers are 10,11,12
Double checking 10+2*11 = 32
12+20 = 32
So it works
Find the distance between (3, -11) and (3, -3). *
A set of 3 consecutive odd intergers sum to 249 what is the greatest interger
Answer:
85
Step-by-step explanation:
What id id was divide 249 by three, then add to two the number and subract two, then you could add the odd numbers you got each time to get 249.
249/3=83
83+2+85
83-2=81
81+83+85=249
) The number of TVs sold increased from 70 to 98
Work out the percentage increase.
Consider this right triangle.
57°
с
B
Enter the length of side AC, to the nearest tenth.
Answer:
Step-by-step explanation:
tan(57°) = AC/9
AC = 9tan(57°) ≅ 13.9
Y'all I really need help
Answer:
15.75
Step-by-step explanation:
15 x 1.05
hope this helps you out
The sizes of four cell phone displays are 5.6 inches, 53
inches, 6 Inches and 5.25 inches. How much longer display
than the shortest display?
A)0.35 in.
B) in
C) in
D)1 in.
Answer: The longest display is 47.75 inches longer than the shortest display.
Step-by-step explanation:
8c 2– c + 3 + 2c 2– c + 2
Answer:
First, let me rewrite the problem as I see it:
Step-by-step explanation:
8c(2) - c + 3 + 2(c + 2) - c + 2
=
16c + 9
Answer:
10 c to the second power -2c+5
Step-by-step explanation:
can someone help i’ll mark brilliant
Answer: 1.32 x 10^4
Step-by-step explanation:
Is the following relation a function? {(1, 2), (4, -3), (4, 7), (8, -6)}
a. Yes
b. No
help plsss
Answer:
A function will not have any repeating x values...it can have repeating y values, just not the x ones. So all ur x's have to be different.
This relation is NOT a function because u have repeating x values...u have 2 x values that are 0.3
I need to find the volume:)
Answer:
396π in^3
Step-by-step explanation:
The formula for calculating volume of a cylinder is πr2h (r : radius, h : height)
π×6^2×11 = 396π in^3
Trapezoid ABCD has vertices A(-5,9) B(-2,9) C(-8,0) D(1,0) after a translation of 2 units right and 3 units down followed by a dilation with a scale factor of 2/3. What are the vertices of trapezoid RSTU
Answer:
(-2,4), (0,4), (-4,-2) and (2,-2)
Step-by-step explanation:
Given
[tex]A = (-5,9)[/tex]
[tex]B = (-2,9)[/tex]
[tex]C = (-8,0)[/tex]
[tex]D = (1,0)[/tex]
[tex]Translation: 2\ units\ right\ \& \ 3\ units\ down[/tex]
[tex]Dilation: \frac{2}{3}[/tex]
Required
Determine the vertices of the image RSTU
When a coordinate (x,y) is translates b units right, the new coordinate is: (x + b, y)
So, translation 2 units right gives:
[tex]A = (-5,9)[/tex] ---> [tex]A' = (-5 + 2,9) = (-3,9)[/tex]
[tex]B = (-2,9)[/tex] ---> [tex]B' = (-2 + 2,9) = (0,9)[/tex]
[tex]C = (-8,0)[/tex] ---> [tex]C' = (-8 + 2,0) = (-6,0)[/tex]
[tex]D = (1,0)[/tex] --- > [tex]D' = (1 + 2,0) = (3,0)[/tex]
When a coordinate (x,y) is translates b units down, the new coordinate is: (x, y-b)
So, translation 3 units down gives:
[tex]A' = (-3,9)[/tex] ---> [tex]A" =(-3,9-3) =(-3,6)[/tex]
[tex]B' = (0,9)[/tex] --> [tex]B" =(0,9-3) =(0,6)[/tex]
[tex]C' = (-6,0)[/tex] --> [tex]C" =(-6,0-3) = (-6,-3)[/tex]
[tex]D' = (3,0)[/tex]--> [tex]D"=(3,0-3) = (3,-3)[/tex]
Lastly, dilation of 2/3 gives:
[tex]New = Old * \frac{2}{3}[/tex]
[tex]R = (-3,6) * \frac{2}{3} = (-2,4)[/tex]
[tex]S = (0,6) * \frac{2}{3} = (0,4)[/tex]
[tex]T = (-6,-3) * \frac{2}{3} = (-4,-2)[/tex]
[tex]U = (3,-3) * \frac{2}{3} = (2,-2)[/tex]
Hence, the coordinates of RSTU are: (-2,4), (0,4), (-4,-2) and (2,-2)
Randy bought 30 marbles. 40% of them are blue. How many blue marbles are there
Answer:
12 are blue, I hope it helps!
Jamahl wants to celebrate his birthday by roller skating with his friends. He has a total of \$45$45dollar sign, 45 to buy ttt tickets. Each ticket costs \$5$5dollar sign, 5. Select the equation that matches this situation. Choose 1 answer: Choose 1 answer: (Choice A) A 45=5t45=5t45, equals, 5, t (Choice B) B \dfrac{5}{45}=t 45 5 =tstart fraction, 5, divided by, 45, end fraction, equals, t (Choice C) C t = 5 \times 45t=5×45t, equals, 5, times, 45 Stuck?Watch a video or use a hint.
Answer: 45 = 5t
Step-by-step explanation:
From the question, Jamahl wants to celebrate his birthday by roller skating with his friends and he has a total of $45dollar to buy t tickets.
We are further told that the ticket costs $5. The equation that matches the situation will be:
45 = (5 × t)
45 = 5t
t = 45/5
t = 9
He can buy 9 tickets
Please help it’s due today
Answer:
[tex]\sqrt{57}[/tex]
Step-by-step explanation:
Pythagorean Method
A = 27 + 0.3 C
The maximum amount of potassium chloride, AA, in grams (gg), which can be dissolved in 100g of water at CC degrees Celsius is given by the equation above. Which of the following is the best interpretation of 0.30 as shown in the equation above?
Group of answer choices
Approximately 0.3 grams of potassium chloride can dissolve in nearly frozen water.
The maximum amount of potassium chloride that can dissolve in water at all temperatures is 0.3 grams.
The amount of potassium chloride that can dissolve in water increases by 1 gram for an increase of 0.3 degrees Celsius in temperature.
The amount of potassium chloride that can dissolve in water increases by 0.3 grams for every 1 degree Celsius increase in temperature.
Answer:
Step-by-step explanation:
Divide 27 by 0.3 to get your answer
Answer:
27.30 because your basically adding 30 as in cents.
Step-by-step explanation:
A blueprint has a rectangle with length of 12 inches and width of 8 inches. The actual dimensions of the rectangle are 96 feet by 64 feet. What was the scale used
The scale used is 1 inch : 8 feet.
What is the scale?The blueprint is a smaller version of an original larger image. The scale would be used to reduce the size of the actual dimensions of the rectangle.
In order to determine the scale, divide the actual dimensions of the rectangle by the dimensions of the rectangle. #
Scale = 96 feet / 12 inches = 8
64 feet / 8 inches = 8
This means that the scale is 1 inch represents 8 feet.
To learn more about scale drawings, please check: https://brainly.com/question/26388230
#SPJ1
Find the total surface area of the net below.
Answer:
122
Step-by-step explanation:
The total surface area is 122. This is because 7 times 4 equals 28. Then you do 7 times 5 twice, which makes 35 times 2, which makes 70. This is because there are 2 triangles with 7 as the base and 5 as the height. Next, you do 4 times 3 twice, which equals 12 + 12 which adds up to 24. Now add the numbers up. 70 + 28 + 24, which = 122.
It's been about a few years since I did area and circumference, if this is the wrong answer I apologize!
can someone help answer this?