Answer:
C
Step-by-step explanation:
Answer:
C.
[tex]x=\frac{-7±\sqrt{5 } }{2}[/tex]
Step-by-step explanation:
4x² + 28x + 49 = 5
4x² + 28x + 49 - 5 = 0
4x² + 28x + 44 = 0
4(x² + 7x + 11) = 0
4(x² + 7x + 11) ÷ 4 = 0 ÷ 4
x² + 7x + 11 = 0
[tex]x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}[/tex]
Ignore the A before the ±. It wouldn't let me type it correctly.
a = 1
b = 7
c = 11
[tex]x=\frac{-7±\sqrt{7^{2}-4((1)(11)) } }{2(1)}[/tex]
[tex]x=\frac{-7±\sqrt{49-4((1)(11)) } }{2(1)}[/tex]
[tex]x=\frac{-7±\sqrt{49-44 } }{2(1)}[/tex]
[tex]x=\frac{-7±\sqrt{5 } }{2(1)}[/tex]
[tex]x=\frac{-7±\sqrt{5 } }{2}[/tex]
How do I do this? (Will give Brainliest) (Instructions if you could please)
Answer:
To find the answer you must see if the numbers in the data set is within the range or lines of the box plot.
Step-by-step explanation:
You download 15 music files on your computer and plan to save 7 of them to an MP3 player. In how many ways can u arrange the songs
Answer:
32,432,400
Step-by-step explanation:
This you can use a permutation.
P(15,7)15x14x13x12x11x10x9
There are 32,432,400 ways to arrange it.
help asap --=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Answer:
9 pi
Step-by-step explanation:
First find the circumference of the circle
C =2 * pi *r
C = 2 * pi *9
C = 18 pi
This is a semicircle which is 1/2 of a circle
Take 1/2 of the circumference
1/2 C = 1/2 ( 18 pi)
1/2 C = 9 pi
what's the answer? help asap
plssssss
Please show full explanation!
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
Given,
[tex]3x - 2y = 5[/tex]
[tex]xy = - 2[/tex]
Now,
[tex](3x - 2y) {}^{2} = (5) {}^{2} \\ [/tex]
Use the algebraic identity ⇻ (a - b)² = a² - 2ab + b²
[tex](3x - 2y) {}^{2} = (5) {}^{2} \\ 3x {}^{2} - 2 \times 3x \times 2y + 2y {}^{2} = 5 {}^{2} \\ 9 {x}^{2} - 12xy + 4y {}^{2} = 25 \\9x {}^{2} + 4y {}^{2} = 25 + 12xy \\ 9x {}^{2} + 4 {y}^{2} - 1 = 24 + 12xy[/tex]
✐ So, the value of 9x² + 4y² - 1 is 24 + 12xy
Now,
xy = - 2
So, 12xy = 12 × - 2 = - 24
•°• 24 + 12xy
= 24 + (-24)
= 24 - 24
= 0
⎆ The value of 9x² + 4y² - 1 is 0.ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
# ꧁❣ RainbowSalt2²2² ࿐
I really need help:(((, it’s my retake
Answer:
1. translation down and to the right
2. reflection over y-axis
3. rotation
have a nice day :)
197,492.2384 x 692.4512 = ?
Quick I'm too lazy to calculate it, thanks.
Answer:
1.3675374e+12
Step-by-step explanation:
that's what the calculator said
anyone help with this question
Answer:
3000 ft^2
Step-by-step explanation:
The top of the play ground
24 cm * 5ft/ 2cm = 60 ft
The side of the play ground
20 cm * 5ft /2cm = 50 ft
The area is
A = l * w = 60 ft * 50 ft = 3000 ft^2
Mr. Takaya can eat four slices of pizza in seven minutes. If he continues to eat at the
same rate, how long will it take him to eat the whole pizza, which has twelve slices?
How many slices could he eat in 35 minutes?
If he continues to eat at the same rate for 35 minutes, he'll have diabetes.
What do these fractions add up to? Check image.
[tex] \orange{\underline{\huge{\bold{\textit{\green{\bf{QUESTION}}}}}}} [/tex]
What do these fractions add up to?
[tex] \huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}[/tex]
[tex] \red{\mathbb{EQUATION-->}}[/tex]
[tex] \frac{9}{16} + \frac{1}{2}\\ \blue{ \mathbb { {LCM}}}\\ \frac{9}{16} + \frac{1 \times 8}{2 \times 8} \\ \frac{9}{16} + \frac{8}{16} \\ \frac{9 + 8}{16} \\ \frac{17}{16} [/tex]
The answer is 17 out of 16
In this formula,C represents the total charge for babysitting and represents the number of hours the child is kept. How much should Joe pay if his child is at the babysitting service for 3 hours?
C= $5:25 + $2:50H
Answer:
huh
Step-by-step explanation:
What is the value of n in the equation 1/2 (n - 4) - 3 = 3 - (2n + 3)?
A. n = 0
B. n = 2
C. n = 4
D. n = 6
HELP PLEASE!!!!
Answer:
n=2
1/2n-2-3=3-2n-3
1/2n+2n=3+2+3-3
2/1/2n=5
5/2n=5
n=5 multiply 2/5
n=2
in 24 games, Jamie has 48 scoring attempts. Which unit rate describes Jamie's scoring attempts?
Answer:
The answer is 2 scoring attempts per game.
Write a story that describes the graph below.
I'm not going to write a story, but here are a few prompts and idea to use:
- person who lost their money to a gambling addiction
- person who had to deal with the expenses of an accident they were in
- person who lost thier success after a scandal and with their fame went their money
- or maybe someone who became a criminal who got caught, so they lost all their money
What is the solution of 9 + k = 18
please help
Answer:
k = 9
Step-by-step explanation:
9 + k = 18
Subtract 9 from each side
9-9 + k = 18-9
k = 9
Answer:
k = 9
Step-by-step explanation:
Since 9 + 9 is 18 k = 9
What are the solutions to the system of equations graphed below?
Answer:
(0,-4) and (2,0)
Step-by-step explanation:
you cut off the screen shot, so not all answer options are visible.
but from the graph we can pretty reliably deduct, that the solutions (the crossing points of both functions) are
(0,-4) and (2,0)
if anyone could help me to figure out whether or not this is correct i would appreciate that. thank you :)
Answer:
You are correct.
Step-by-step explanation:
Probably too late, but 475 x 3 = 1425. Since it is a loss, the negative sign is appropriate.
Three runners competed in a race.
Answer:
runner B
Step-by-step explanation:
its the only one on the line
runner C is tall like a mountan
and runner A is not anywhere close to a line
A triangle has sides of 10.5 inches, 7.4 inches and 6.3 inches. The perimeter of the triangle is ___ inches.
Answer:
24.2
Step-by-step explanation:
The perimeter is the sum of the sides:
10.5 + 7.4 + 6.3 = 24.2
Which is a different way to express 2w?
solve the following quadratic equation 1(x+3)^2-1=0
Answer:
x=-2, -4
Step-by-step explanation:
1(x+3)^2-1=0
Add 1 to each side
1(x+3)^2-1+1=0+1
(x+3)^2=1
Take the square root of each side
sqrt((x+3)^2)=sqrt(1)
x+3 = ±1
x+3 = 1 x+3 = -1
Subtract 3 from each side
x+3-3 = 1-3 x+3-3 = -1-3
x = -2 x=-4
Answer:
X = -2 X = -4
Step-by-step explanation:
pleaseeee help ty!
:)
Problem 3
Answer: 1/5 of a gallon per minute-------------------------
Explanation:
Two points from the graph are (10,2) and (20,4)
Apply the slope formula
m = (y2-y1)/(x2-x1)
m = (4-2)/(20-10)
m = 2/10
m = 1/5
The slope of the graph is 1/5.
Do the same for two points from the table. I'll use the first two rows
m = (y2-y1)/(x2-x1)
m = (4-2)/(10-5)
m = 2/5
The slope of the table is 2/5.
Subtract the two slopes to wrap things up:
2/5 - 1/5 = (2-1)/5 = 1/5
=====================================================
Problem 5
Answer: 23 degrees------------------------
Explanation:
Angles 1 and 3 are same side exterior angles, so they are supplementary due to the parallel lines set up here.
(angle1)+(angle3) = 180
(157) + (angle3) = 180
angle3 = 180-157
angle3 = 23 degrees
In how many ways can you arrange all the numerals 1 through 5?
a
15
b
120
c
25
d
24
Answer: C
Step-by-step explanation: 5x5=25
pls mark as brainliest
vindows. Find the total surface area
4 ft
5 ft
5 ft
4 ft
7 ft
oft -
Answer:
6 x 4 = 24, 24 x 2 = 48
7 x 6 = 42
7 x 4 = 28, 28 x 2 = 56
6 x 4 x 1/2(basically just dividing by 2) = 12, 12 x 2(two triangles) = 24
5 x 5 = 25, 25 x 2 = 50
Add given areas:
48 + 42 + 56 + 24 + 50 = 220 ft^2 is your answer.
Solve the problem.
A teacher is going to assign each student a 3-digit code using the digits 0 through 4. How many codes are possible if no repetitions are allowed?
A.) 60
B.) 125
C.) 24
D.) 64
Answer:
24 codes are possible
Step-by-step explanation:
0 through 4 means we are to select from 0,1, 2 , and 4
That’s a total of 4
The first number has 4 choices, the second 3, the 3rd two and the last 1
The product of the choices are;
4 * 3 * 2 * 1 = 24 codes
Acellus Find the next term in this arithmetic sequence. 7/2,9/4,1,-1/4,-2/3 ,___
Answer:
-11/4
(I think you meant -3/2 not -2/3 at the end there.)
Step-by-step explanation:
If it is arithmetic, it's going up or down by same number.
So we started with 7/2 and went down to 9/4.
If we can find how much it went down, then we can find the next term after -3/2.
Find difference
7/2-9/4
Find common denominator
14/4-9/4
5/4
So we are going down by 5/4 each time.
That means the following equations should ve true:
7/2-5/4=9/4
9/4-5/4=1
1-5/4=-1/4
-1/4-5/4=-3/2
And all of these are in fact true.
The next term in the sequence will be
-3/2-5/4.
Find common denominator
-6/4-5/4
-11/4
Find the surface area and volume of a prism with a square base sides of 8 inches and a height of 12 inches.
surface area _________ Volume__________
Answer:
surface area is 64in³.
volume is 832 in³
I need help solving this , help !
Answer:
NO
Step-by-step explanation:
Triangle A suggests that the triangle is isosceles.
Isosceles:
Triangle with two congruent angles and sides:
7 , 6 , 7
5 , 4 , 5
9, 12 , 9
Triangle B suggests that the triangle is scalene.
Scalene:
Triangle with no congruent angles or sides:
5 , 6 , 7
10 , 15 , 7
12 , 18 , 21
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
How do I do this? (Will give brainliest) (explanation if you could)
Answer:
ummmmmmmmmm whats the question
have a good day :)
Step-by-step explanation:
Find the missing length of the triangle.
Answer:
29 = c
Step-by-step explanation:
Since this is a right triangle we can use the Pythagorean theorem
a^2+b^2= c^2 where a and b are the legs and c is the hypotenuse
20^2 + 21^2 = c^2
400 +441 =c^2
841 = c^2
Take the square root of each side
sqrt(841) = sqrt(c^2)
29 = c
Answer:
c = 29 km
Step-by-step explanation:
21² + 20² = c²
441 + 400 = 841
√841 = 29
What is the area of the shaded portion of the circle?
9514 1404 393
Answer:
(a) (5π -11.6) ft²
Step-by-step explanation:
The shaded area is the area of 1/5 of the circle less the area of the triangle with base 5.8 ft and height 4 ft.
shaded area = 1/5(π(5 ft)²) -(1/2)(5.8 ft)(4 ft)
shaded area = (5π -11.6) ft²