Answers
Answer:
square roots
quadratic formula
factoring
complete the square
Step-by-step explanation:
1. In the first one, we can divide both sides by -2 and then square root it, getting x^2 = -98 so x = 7i \sqrt(2).
2. We can use the quadratic formula to find out the second one.
3. We can factor 4x^2 - 21x - 18 = 0 and get (x + 6)(4x - 3).
4. In the last one, we can complete the square, getting (x + 9)^2 + 16.
Related Questions
Find the distance between the points (4,3) and ( 0,6)
Answers
Answer:
5
Step-by-step explanation:
The distance between the points (4,3) and ( 0,6) is; d = 5
The formula for distance between two coordinates is given as;
d = √((y2 - y1)² + (x2 - x1)²)
We are given the coordinates;
(4,3) and (0,6)
Thus;
x1 = 4
x2 = 0
y1 = 3
y2 = 6
Thus;
d = √((6 - 3)² + (0 - 4)²)
d = √(3² + 4²)
d = √25
d = 5
Read more about distance between two coordinates at; https://brainly.com/question/7243416
8m+3=9
Can u pls show ur work thank u.
Answers
Answer:
m=0.75
Step-by-step explanation:
8m+3=9
8m=9-3
8m=6
m=6/8
m=0.75
The width of Maya’s poster is 2 inches shorter than the length. The graph models the possible area (y) of Maya’s poster determined by its length (x).
Which describes what the point (2, 0) represents?
Answers
For all real numbers a and b, 2a • b = a2 + b2 Is this true or false? Explain why it false or true.
Answers
Answer:
It's false.... correct is a2+2ab+b2
Step-by-step explanation:
This cannot be factored anymore although. when we try to substitute a with 5 and b with 2, the answer in the right hand side of the equation is -9.
That's why it's false.
CORRECT AND FIRST ANSWER GETS BRAINLIEST!!
Please explain how to do it
(05.03) calculate the area of the irregular polygon shown below
Answers
Hope I explain it okay and it helps you!
John sold one more than twice as many candy bars as Linda sold. If together they sold 43 candy bars, how many did John sell?
Answers
Answer:
Step-by-step explanation:
Linda sold 14
John sold 29 which is 14 two times plus one
29+14=43
find the perimeter of a quarter circle with a radius of 7 inches.
Answers
Answer:
17.5in
Step-by-step explanation:
The circumference of a circle is pi multiplied by the diameter, so...
d=2r
d=14in x pi
Therefore the overall circumference is 14in x pi. A quarter of this would be the curved perimeter of the quarter circle.
14 pi/4=3.5in x pi
The quarter circle also includes 2 radii, and thus 7+7+3.5 is 14+3.5pi inches (pop it in your calculator as I don't currently have one at hand).
Answer:
The answer would be 43.98
Step-by-step explanation:
Multiple the Radius (7) by 2. You will get the circumference (14). Then multiply 14 by pi. 43.9822971503, or "43.98" just to be safe! ;-)
A tree 24 feet tall casts a shadow 12 feet long. Brad is 6 feet tall. How long is Brad's shadow?
Answers
Answer:
Brad's shadow is 3 feet long
Step-by-step explanation:
If a tree is 24 feet tall, and casts a shadow 12 feet long, The we know the shadows will be half as big as the main object.
Because Brad is 6ft tall, His shadow will be half of his hight (3ft long)
The slope of the tree to shadow is equal to the slope of Brad to shadow. The Brad's shadow is 3 ft long.
What is a right-angle triangle?It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function. The Pythagoras is the sum of the square of two sides is equal to the square of the longest side.
A tree 24 feet tall casts a shadow 12 feet long.
Brad is 6 feet tall.
The slope of the tree to shadow is equal to the slope of Brad to shadow (x). Then we have
[tex]\rm \dfrac{x}{6} = \dfrac{12}{24}\\\\x \ = \dfrac{6*12}{24}\\\\x \ = 3[/tex]
More about the right-angle triangle link is given below.
https://brainly.com/question/3770177
he cost of one pound of peanuts is 60% of the cost of one pound of cashews. If one pound of cashews costs $2, what is the cost of one pound of peanuts? What is the total cost of two pounds of peanuts and one pound of cashews?
The cost of one pound of peanuts is $. The total cost of two pounds of peanuts and one pound of cashews is
Answers
Answer:
The answer is $1.2
Step-by-step explanation:
How I got that answer is that I mulitplied 0.6*2 and that equals 1.2.
Answer:
1.20 and 4.40
Step-by-step explanation:
As the other girl said, the first answer is 1.2
Using that you can add that (1.20 + 1.20) to get the cost of two pounds of peanuts.
Then you add the $2 for the one pound of cashews.
Your final answer will be = 4.40
Which could be used to evaluate the expression
-6
NICO
O (-6)(4)+(-6)
(
(-6)(4)x(-6)
نہ آنا
O (+8+4)+(-6+)
o toale(-03)
Answers
Answer:
its the 2
Step-by-step explanation:
i did the test
HELP MEE!!!|||||||||Find the volume of a cylinder with a diameter of 6 inches and a height that is three times the radius. Use 3.14 for pi and round your answer to
the nearest hundredth. (Hint: You may only enter numerals, decimal points, and negative signs in the answer blank) (4 points)
Answers
Answer: There are several information's of immense importance already given in the question. Let us write them down first.
Diameter of the cylinder = 6 inches
Then
Radius of the cylinder = 3 inches.
Height of the cylinder = 3 * radius
= 3 * 3
= 9 inches
Volume of the cylinder = (pi) * (Radius)^2 * Height
= 3.14 * (3)^2 * 9
= 3.14 * 9 * 9
= 254.34 cubic inches
A store sells three varieties of cheese—cheddar, Gouda, and Swiss. Each variety of cheese is available in two different styles—shredded or sliced. If Ryan buys 120 random cheeses for a large work party, about how many of them would you expect to be shredded Gouda?
Answers
Answer:40
Step-by-step explanation:
their is 3 type of cheese and he buy 120
120/3=40
Answer:
bvhjk
Step-by-step explanation:
what is the inverse of function f. f(x)=1/3-1/21x
Answers
Answer:
f^-1 (x) = -21x + 7 is your answer
what is 19.2x10^9 minutes in hours
Answers
Answer:
19.2×10^9 =320000000
The midpoint of AB is M(4,0). If the coordinates of A are (3, -1), what
are the coordinates of B?
Answers
Answer:
Step-by-step explanation:
B (5,1)
Help please
Will give brainliest
Answers
c=ad/b
reason:
to find the value of c, you have to get it on its own
to start, multiply both sides by d
this makes the equation ad=bc
then, divide both sides by b to get ad/b=c
The temperature dropped overnight by 5.6° Fahrenheit every hour. What was the change in temperature after 4 hours?
a -1.4°F
b-1.6°F
C -9.6°F
d -22.4°F
Answers
help again i just started and im having trouble lol
Answers
Answer:
answer choice 3
Step-by-step explanation:
Answer:
3) [tex]\sqrt{81}[/tex]
Step-by-step explanation:
[tex]\sqrt{81}=9[/tex]
9 is a rational number since it can be expressed as a fraction ([tex]\frac{9}{1}[/tex])
When you square root the other options, 79, 80 and 82, you'll get an answer that goes on forever.
Solve for s.
Give an exact answer.
1
6s - 4 = 8 (2+1/4s)
Answers
Answer:
s =2
Step-by-step explanation:
you need to multiply to find the answer
6 x 2=12
Then you need to replace the s with 2 and see if it fits correctly in this case it does
6x2 -4 =8
12-4=8
On Thursday, a website received x advertisement orders. On Friday, the website received 8 more advertisement orders than on Thursday. The expression 2x + 8 represents the total number of advertisement orders received over two days.
Answers
Answer: how many more advertisements were ordered on Friday than Thursday
Step-by-step explanation:
I need help right now this due today(you have been in this situation).
Answers
Answer:
7.62
Step-by-step explanation:
We can draw another point at (-3, -4) named C to get a right-angled triangle.
AC = 2 (by counting)
BC = 7 (by counting)
Using Pythagoras Theorem,
[tex]AC^{2} +BC^{2} =AB^{2}[/tex]
[tex]2^2+7^2=AB^2[/tex]
[tex]4+49=AB^2[/tex]
[tex]AB^2=58[/tex]
[tex]AB=\sqrt{58} = 7.62[/tex] (nearest hundredth)
Darren wins a coupon for $4 off the lunch special for each of 5 days. He pays $75 for his 5 lunch specials. Write and solve an equation to find the original price p for one lunch special.
Answers
Answer:
75/5 - 4
Step-by-step explanation:
Solve, check and graph the solution set. 6 - 2n - 5< -11
Answers
Answer:
n > 6Step-by-step explanation:
Solution6 - 2n - 5< -11 1 - 2n < -11-2n < -12n > 6Checkn = 106 - 2*10 - 5 < -116 - 20 - 5 < -11-19 < -11Graph is the line segment of the right from point 6 not including 6
Carlos and Diya perform the same transformations on
the same pre-image, but in reverse order.
Carlos translates, then dilates. Diya dilates, then translates. Carlos claims the resulting images will always be the same. Diya disagrees. Who is right
Answers
Answer: Carlos is right
Step-by-step explanation:
why because in dilation, the image and the original are similar, in that they are the same shape but not necessarily the same size. They are not congruent because that requires them to be the same shape and the same size, which they are not (unless the scale factor happens to be 1.0).
Diya is wrong because the picture is the not the same size && the image is going to stay the same
Your question is incomplete. Please read below to find the missing content.
Carlos is right because, in dilation, the image and the original are similar, in that they are the same shape but not necessarily the same size. They are not congruent because that requires them to be the same shape and the same size, which they are not (unless the scale factor happens to be 1.0).
What is a word problem in maths?A word problem in maths is a maths question written as one sentence or more that requires children to apply their maths knowledge to a 'real-life' scenario.
Learn more about word problems here: https://brainly.com/question/13818690
#SPJ2
The product of a number z and 12 is 60
Answers
"Product" means multiply.
The product of a number z and 12: z * 12 or 12z
Put everything we know together.
12z = 60
Solve for z if needed
12z/12 = 60/12
z = 5
Best of Luck!
Answer:5
z x 12=60
z=60/12
z=5
sorry the answer i put before was wrong but i've corrected it
please help, thank u!!
Answers
Answer: j x 20
Step-by-step explanation:
Enter the measurement with the indicated number of significant digits.
858.6 m2 (3)
The answer is.
Im?
Can someone pls help me?
Answers
Solve By Factoring: 7x^2+6x-3=0
Answers
Answer:
x= -3-sqr30/7
Step-by-step explanation:
(-25+ 4 to the second power) x 7
Answers
Answer:
-63
Step-by-step explanation:
4^2 is 16
-25 + 16 = -9
(-9)7 = -63
I hope this helps!
Answer:
I believe its -63 hope this helps
2) Use the rules for order of operations to simplify the numerical expression.
82 +7(- 2 - 5) + 3
