Answer:
Discriminant = 0Step-by-step explanation:
A quadratic equation:
ax² + bx + c = 0.
A discriminant:
D = b² - 4ac
If D < 0, then the equation has no real solution.
If D = 0, then the equation has one real solution.
If D > 0, then the equation has two real solutions.
Answer:
the answer is 0 on Edg en uityWrite the equation that is the translation of y=|x| right 7 units and down 9 units.
Answer:
[tex]y=|x-7|-9[/tex].
Step-by-step explanation:
The given function is [tex]y=|x|[/tex].
When this function is translated to the right 7 units and down 9 units, then the equation becomes
[tex]y=|x-7|-9[/tex].
Always remember that; [tex]y=|x-c|-k[/tex] is a transformation that translates the graph of [tex]y=|x|[/tex] c units to the right and k units down.
The correct choice is the first option.
the school put up a new fence the East and West sides were each 12 meters long the North and South sides where each 10 m long how many meters of fencing did they use
Answer:
12+12 for east and west equals 24
10+10 for north and south equals 20
24+20 equals 44
In the end they used 44 meters of fence
Step-by-step explanation:
Answer:
44Step-by-step explanation:
hello please help asap ( 15 points)
First 816
second 143
Third 4207.5
what are the minimum, first quartile, 20 70 13 15 23 17 40 51
Answer:
Minimum 13
First quartile 16
Step-by-step explanation:
Rewrite the sample 20 70 13 15 23 17 40 51 in ascending order:
13 15 17 20 23 40 51 70
The minimum is 13.
The median is the middle number
13 15 17 20 23 40 51 70
The middle number between 20 and 23 is
[tex]\dfrac{20+23}{2}=21.5[/tex]
Consider first half of the sample
13 15 17 20
The first quartile is the middle number of this part. The middle number of
13 15 17 20
is
[tex]\dfrac{15+17}{2}=16[/tex]
For questions 1-2 identify the zeros of the function
Answer:
Step-by-step explanation:
The zeros of a function are where it crosses the x axis, so just find the coordinates for the x intercepts.
1.
[tex](2,0)[/tex] and [tex](-1,0)[/tex]
2.
[tex](3,0)[/tex] and [tex](-3,0)[/tex]
Please help !
The point slope form of the equation of the line that passes through -5 -1 and 10 -7 is y+7=-2/5(x-10). What is the standard form of the equation for this line?
A - 2x-5y=-15
B - 2x-5y=-17
C - 2x+5y=-15
D - 2x+5=-17
Answer:
C. 2x +5y = -15
Step-by-step explanation:
You want the form ax +by = c. To get that form, you need to put the x-term on the left (making sure its sign is positive) and the constant on the right.
Multiply by 5:
5y +35 = -2(x -10)
Eliminate parentheses:
5y +35 = -2x +20
Add 2x-35
2x + 5y = -15 . . . . . . corresponds to selection C
_____
Be careful of dashes when writing answers. They can be confused with minus signs.
An office manager reported that he spent $350 on gifts for employees. He said that $240 was spent on clothing with each man receiving a $20 T-shirt and each woman receiving a $40 sweatshirt. He said that $110 was spent on desk accessories with each man receiving a $5 calendar and each woman receiving a $15 stapler. If m equals the number of men and wequals the number of women, the system of equations that represents the expenses is as follows:
m+2w=12
m+3w=22
Answer:
So I assume we are figuring out the number of men and women here, so:
m + 2w = 12
m = 12 - 2w
12 - 2w + 3w = 22
w = 10
m + 2w = 12
m + 2(10) = 12
m + 20 = 12
m = -8
Point P (-1, 2) is the center of a circle. The radius of the circle is 3 units. Which point lies on the circle? PLEASE HELP!
Answer:
(2,2), (-1,5), (-3,2), (-1,-1)
Step-by-step explanation:
The radius is the distance from the center of the circle to the outside. So, adding or subtracting 3 from the x-value of the center point will give you a point that lies on the circle. Doing the same to a y-value will as well. However, never add or subtract from both.
Four-fifths of a number is -24. What is the number ?
-20 is the anwser
4*(-24)/5 =-20
Answer: -30
(4/5)x=-24
x=(-24)(5/4)=-6*5=-30
Which situation describes INDEPENDENT events?
Answer:
In B, One card is chosen from a standard deck, it is set aside, then a second card is drawn. That "set aside" is where we have a problem. We began with 52 cards, but now have 51. This fact WILL change the probability or probabilities. Chances of obtaining a red heart from the full 52-card deck are 4/52; whereas chances of obtaining a red heart from the remaining 51 cards (assuming that you got a red heart earlier and set it aside) is 3/51.
K= 2/3 is a solution to the inequality 18k + 4 >18 true or false
Answer:
The answer will be: false.
18k = 12
12 + 4 = 16
16 > 18
So the equation is false.
Hope this helps! :D
Step-by-step explanation:
How do you solve 16 = 17 - t
So I looked it up on another math helper app called ( Socratic )and this is what popped up on my screen Simplifying
16 = 17 + -1t
Solving
16 = 17 + -1t
Solving for variable 't'.
Move all terms containing t to the left, all other terms to the right.
Add 't' to each side of the equation.
16 + t = 17 + -1t + t
Combine like terms: -1t + t = 0
16 + t = 17 + 0
16 + t = 17
Add '-16' to each side of the equation.
16 + -16 + t = 17 + -16
Combine like terms: 16 + -16 = 0
0 + t = 17 + -16
t = 17 + -16
Combine like terms: 17 + -16 = 1
t = 1
Simplifying
t = 1
So I’m pretty sure that’s the answer:) if not I’m truly sorry.
Answer:
what u do on one side u gotta do to the other
Step-by-step explanation:
Which fraction is equivalent to 0.75?
Answer:75/100
or 3/4
Step-by-step explanation:
Answer:
3/4ths
Step-by-step explanation:
100 divided by 4 is 25. 25 times 3 is 75.
does anyone know any of these bc my brother needs help and i don’t know!?!?!?
Answer:
the third one all the way to the right
Step-by-step explanation:
the other two have two or more congruent sides and that one doesnt and also the one that doesn'r belong has a right angle and the others dont
For the right triangle shown, what is the tangent of angle A?
A) 2/3
B) 3/2
C) 3/4
D) 4/3
Answer:
The correct answer is option C 3/4
Step-by-step explanation:
It is given a right angled triangle ABC
To find the value of x
Hypotenuse² = Base² + height²
(x + 2)² = x² + (x + 1)²
x² + 4x + 4 = x² + x² + 2x + 1
x² -2x -3 = 0
We get x = 3 and x = -1
We take positive value x = 3
To find Tan A
Tan A = Opposite side/Adjacent side
= BC/AB = x/(x + 1) = 3/4
Therefore the correct answer is option C. 3/4
what is the best desert in a math teachers cafe law of sines riddle
is a good desert. people love cake
Final answer:
The question regarding the "best desert in a math teacher's cafe" related to the Law of Sines is likely a pun involving math terms, with "pi" being the intended humorous answer due to its dual significance as a mathematical constant and a type of dessert.
Explanation:
The "best desert in a math teacher's cafe" when mentioned alongside the Law of Sines is likely a playful riddle rather than a straightforward question. The Law of Sines is a mathematical formula used in trigonometry to find missing angles or sides of a triangle, given enough information. It states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is constant for all three sides and angles in the triangle. Therefore, this riddle might be a pun or a play on words related to mathematics or trigonometry terms rather than an actual desert item.
In essence, to solve such riddles, one needs to think creatively, connecting the concept of desert with mathematical terms or principles. A common pun could be "pi," as it sounds like "pie," a type of dessert, and is also an essential constant in mathematics used to calculate the circumference and area of a circle. In the context of a math-themed cafe, "pi" could very well be considered the "best dessert," cleverly linking the world of mathematics with culinary delights in a humorous way.
In an experiment, Seth was given a substance known as ammonium carbonate, (NH4)2CO3. Seth connected a bunsen burner to the gas valve using a gas hose. He turned on the gas valve and lit the bunsen burner. Using a test tube, Seth heated a piece of ammonium carbonate. Seth noticed the following:
- Condensation appeared on the sides at the top of the test tube.
- An ammonia smell was coming from the test tube.
Seth continued to light a wooden splint and stick it down the test tube and it immediately was extinguished.
Throughout this experiment, how many signs of chemical changes were observed and actual chemical changes took place?
A) 4
B) 5
C) 6
D) 7
Answer: B
Step-by-step explanation: do you still need help with this let me know :P
Answer:
B. 5
Step-by-step explanation:
In an experiment, Seth was given a substance known as ammonium carbonate, (NH4)2CO3. Seth connected a Bunsen burner to the gas valve using a gas hose. He turned on the gas valve and lit the Bunsen burner. Using a test tube, Seth heated a piece of ammonium carbonate. Seth noticed the following: - Condensation appeared on the sides at the top of the test tube. (Condensation is not a chemical change, but it was a sign of a chemical change.) - An ammonia smell was coming from the test tube. Seth continued to light a wooden splint and stick it down the test tube and it immediately was extinguished.
The white shape can be transformed into the blue one using
A) a dilation, then a rotation.
B) a rotation, then a reflection.
C) a translation, then a dilation.
D) a reflection, then a translation.
Answer:
B) a rotation, then a reflection
Step-by-step explanation:
you will make a rotatio of 90° about clockwise and reflection about Y- axix
Answer:
B) a rotation, then a reflection.
Step-by-step explanation:
From the given graph, the white shape transformed into blue shape.
If you look at the white shape and the blue shape.
The white shape rotated 45° counter clock wise and reflected over the origin x = y to get the blue figure.
For example, let's take a vertex (2, -1) in the white figure. The corresponding in the blue shape is (-2, 1) which is reflection about the origin.
Therefore the answer is B) a rotation, then a reflection.
A set of stairs is being built as shown. The length of each stair is 11 inches. What is the rise, r, for each stair? Round to the nearest inch.
2 inches
7 inches
17 inches
24 inches
Answer:
7 inches just took test
Step-by-step explanation:
The rise, r, for each stair is 7 inches.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
From the given figure the length of each stair is 11 inches.
We have to find the rise of each stair.
From the pythagoras theorem we find the value of r.
In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“.
11²+r²=13²
121+r²=169
r²=169-121
r²=48
Take square root on both sides
r=6.9
r= 7 inches.
Hence, the rise, r, for each stair is 7 inches.
To learn more on trigonometry click:
https://brainly.com/question/25122835
#SPJ2
The distance between the points (5, -2) and (-7, 3) is
For this case we have that the distance between two points is given by:
[tex]d = \sqrt {(x_ {2} -x_ {1}) ^ 2+ (y_ {2} -y_ {1}) ^ 2}[/tex]
We have the points:
[tex](x_ {1}, y_ {1}) = (5, -2)\\(x_ {2}, y_ {2}) = (- 7,3)[/tex]
Substituting:
[tex]d = \sqrt {(- 7-5) ^ 2 + (3 - (- 2)) ^ 2}\\d = \sqrt {(- 7-5) ^ 2 + (3 + 2) ^ 2}\\d = \sqrt {(- 12) ^ 2 + (5) ^ 2}\\d = \sqrt {144 + 25}\\d = \sqrt {169}\\d = 13[/tex]
Thus, the distance between the points is 13
Answer:
[tex]d = 13[/tex]
What’s This Answer I Need Help I’m struggling with man
Area: 3915
L X W
Perimeter: 264
Add all sides
I don't know what it means by type, sorry
area: 3915 mm
perimeter: 264
type: rectangle
Step-by-step explanation:
to find the area multipluy 87 and 45
to fin perimeter add 87 and 45. then multipluy by 2
Michael is organizing 5,272 blocks into bins at the toy store. He needs to put the same number of blocks in each bin without any leftover blocks. How many bins could Michael use for the blocks? A) 3. B) 4. C) 5. D) 9.
B. plz mark brainly
Answer: B) 4 bins
Step-by-step explanation:
The criteria of divisibility are rules that serve to know if a number is divisible by another without having to perform the division.
Divisibility by 3 (or 9)A number is divisible by 3 (or 9) if and only if the sum of its digits is divisible by 3 (or 9).
5,272
5 + 2 + 7 + 2 = 16
1 + 6 = 7 →This number isn't divisible by 3, therefore 5,272 isn't divisible by 3
Divisibility by 5Divisibility by 5 is easily determined by checking the last digit in the number , and seeing if it is either 0 or 5. If the last number is either 0 or 5, the entire number is divisible by 5.
5,272 → the last digit is 2; isn't 0 or 5, therefore 5,272 isn't divisible by 5.
Divisibility by 4The basic rule for divisibility by 4 is that if the number formed by the last two digits in a number is divisible by 4, the original number is divisible by 4
5,272
the last two digits are 72, and 72/4 = 18
72 is divisible by 4, therefore 5,272 is divisible by 4
Since 5,272 is divisible by 4, Michael can use 4 bins to organize the blocks, and he needs to put 5,272/4 = 1,318 blocks in each bin.
Answer: B) 4 bins
[tex]\textit{\textbf{Spymore}}[/tex]
What is the answer to number 4.
Answer: 2x-7, 2+4.
Explanation: An expression is a mathematical phrase that has a + or - but no equal sign.
complementary or supplement and also solve for X.
Answer:
see explanation
Step-by-step explanation:
The 2 indicated angles form a straight angle and are supplementary.
4x + 5 + 41 = 180
4x + 46 = 180 ( subtract 46 from both sides )
4x = 134 ( divide both sides by 4 )
x = 33.5
Circular flower bed is 17 m in diameter and has a circular 2 around it is that to meters wide find the area of the sidewalk in square meters use 3.14 for pi
The area of the sidewalk surrounding a circular flower bed with a diameter of 17 meters and a 2-meter wide sidewalk is 119.32 square meters.
The question involves finding the area of a sidewalk that surrounds a circular flower bed. The flower bed has a diameter of 17 meters, and the sidewalk is 2 meters wide. This is a geometry problem that requires us to calculate the area of two circles and then find the difference between them.
Calculate the radius of the inner circle (flower bed): radius = diameter / 2 = 17 m / 2 = 8.5 m.
Calculate the area of the inner circle using the formula A = 3.14 * 8.5 m * 8.5 m = 226.865 m
Calculate the radius of the outer circle (flower bed + sidewalk): radius_outer = radius_inner + width of the sidewalk = 8.5 m + 2 m = 10.5 m.
Calculate the area of the outer circle: A_outer = 3.14 * 10.5 m * 10.5 m = 346.185 m.
Calculate the area of the sidewalk by subtracting the area of the inner circle from the area of the outer circle: Area_sidewalk = A_outer - A_inner
= 346.185 m - 226.865 m
= 119.32 m.
The area of the sidewalk is 119.32 square meters.
Find the radius of the circle whose equation is x^2 + y^2 = 4.
Answer:
Radius of the given circle is r = 2.
Step-by-step explanation:
Given equation of the circle is [tex]x^2 + y^2 = 4[/tex].
Now we need to find the radius of the given circle [tex]x^2 + y^2 = 4[/tex].
To find that let's compare with the formula of the circle with is [tex]x^2 + y^2 = r^2[/tex], where r is the radius.
We get [tex]r^2 = 4[/tex]
take square root of both sides.
[tex]r=2[/tex]
Hence radius of the given circle is r = 2.
ANSWER
The radius is 2
EXPLANATION
The given equation of the circle is
[tex] {x}^{2} + {y}^{2} = 4[/tex]
.This is the same as
[tex]{x}^{2} + {y}^{2} = {2}^{2} [/tex]
We campare to the equation of the circle with center at the origin.
[tex]{x}^{2} + {y}^{2} = {r}^{2} [/tex]
We have
[tex]r = 2[/tex]
.Hence the radius of the circle is 2
Can someone pls tell me the answer to this . I’ll give you the brainly
Answer:
(10^7)y
Step-by-step explanation:
raise 10 to the 7th power
10 ^7
Multiply this and y
10^7 * y
(10^7)y
Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y=-x-1 y=x+3
Answer:
C. (-2, 1)
Step-by-step explanation:
See the attached graph.
The slope of the first line is -1, and its y-intercept is -1.
The slope of the second line is +1 and its y-intercept is +3.
The solution is the point that is common to both lines, (-2, 1).
Answer:
C. (-2, 1)
Step-by-step explanation:
APEX
What is the exact area of a circle having radius 7 in.?
Ky wants to buy three shirts, which were originally priced 49.96 each. The store will discount the price of the third shirt by 50% and then apply a 7.1% tax to the total cost of all three shirts. Including the tax, what will be the mean cost of each shirt?
49.96 + 49.96 + (49.96x.5)
99.92+24.94=124.86 divide 7.1 and 124.86 which gives you 17.58591549295775 but I’m guessing u round so 17.59 and add that to 124.86which equals 142.45. The total cost is 142.45. But each shirt is 49.96 and the third is 24.94. Don’t forget the dollar sign and have a good day! :)
Answer:
it's 44.59
Step-by-step explanation: