Answer:
A
Step-by-step explanation:
y = x² - 6x - 4
(x - 3)² - 3² - 4 = 0
(x - 3)² - 13 = 0
(x - 3)² = 13
x - 3 = ±√13
x = 3 ± √13
Which ordered pair is the solution to the system of linear equations y =5x +8 and y= -4 x-1
Answer:
(-1,3)
y=5x+8 , y=-4x-1y=5x+8,y=−4x−1
Both sides have y on the left hand side so make the right hand side equal and solve for x
5x+8= -4x-15x+8=−4x−1
To solve for x , add 4x on both sides
9x+8=-19x+8=−1
Subtract 8 on both sides
9x=-99x=−9
Divide by 9 on both sides
x=-1x=−1
Now plug in -1 for x in the first equation and find out y
y=5x+8y=5x+8
y=5(-1)+8y=5(−1)+8
y=-5+8y=−5+8
y=3y=3
Ordered pair is (x,y) that is (-1,3)
Step-by-step explanation:
Mark me as brainliest plsss
hich of the following descriptions matches the tree diagram below?
Answer:
B
Step-by-step explanation:
There is 2 options, win and lose, no tie so 3 and 4 get cancelled. there are only 2 roots so 1 gets cancelled leaving 2 (B)
Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches. a solid right pyramid with a square base has a base edge measuring 6 inches. which is the slant height of the pyramid if helen uses all the clay?
The slant height of the pyramid will be 5 inches.
Given Information and Formula Used
Volume of the clay = 48 cubic inches
Edge of the square base of the pyramid, a= 6 inches
Volume of the pyramid = (1/3) × Base Area × Height
Pythagoras Theorem, l² = x² + h²
Here, l is the hypotenuse, x is the base and [tex]h[/tex] is the height in a right angle triangle.
Calculating the Height, h of the Pyramid
Volume of the pyramid = Volume of the clay
Volume of the pyramid, V= 48 cubic inches
Base Area of the pyramid, B = a²
⇒ B = 6² square inches
⇒ B = 36 square inches
∵ V = (1/3)×B×H
[tex]\frac{1}{3}*36*h = 48[/tex]
∴ [tex]h = \frac{48*3}{36}[/tex]
⇒ h = 4 inches
Calculating the Slant Height, l of the Pyramid
Applying Pythagoras Theorem to determine the slant height,
l² = x² + h²
Here, we have x=a/2
[tex]l^{2} = \frac{a^{2} }{4} + b^{2}[/tex]
[tex]l^{2} = \frac{6^{2} }{4} + 4^{2}[/tex]
[tex]l = \sqrt{9+16}[/tex]
[tex]l=\sqrt{25}[/tex]
l =5 inches
Thus, the slant height of the solid right pyramid with a square base made by Helen is 5 inches.
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please help asappp!!!
Answer:
0
y = 2
Step-by-step explanation:
Since it's a flat line, the slope is 0.
Since all of the points have a y-value of 2, the equation is y = 2.
Answer:
Slope = 0
Equation: y = 2
Step-by-step explanation:
PQ is parallel to x-axis. Slope of the line parallel to x-axis = 0.
Slope of diagonal PQ = 0
Equation of line parallel to x-axis : y = a
Equation of diagonal PQ: y = 2 or y -2 = 0
I’m really stuck please can someone help
Answer:
Least, Median and Greatest height of boys are all higher then Least, Median and Greatest of girls height
Step-by-step explanation:
Least height of boys: 158cm > 150cm Least height of girls
Median height of boys: 168cm > 165cm Median height of girls
Greatest height of boys: 182cm > 170cm Greatest height of girls
Solve the inequality W> Y+H /P
Answer: C
Step-by-step explanation:
Given the following inequality:
[tex]W& > \dfrac{Y + H}{P}[/tex]
Solve for H.
To solve for H we will start by multiplying both sides of the equation by P
[tex]PW& > \dfrac{Y + H}{P}\times P\\[0.3cm] PW& > Y + H\\[0.3cm][/tex]
Next, we will subtract Y from both sides of the inequality
[tex]\boxed{{WP - Y > H}}[/tex]
Therefore, the correct answer is C
Terrence is going on vacation and taking his dog Pickles along. Pickles eats 3 cups of Hungry Hound dog food each day. Terrence wants to know how many days he can feed Pickles from a 15-cup bag of Hungry Hound.
Answer:
Number of Days he can feed Pickles from a 15-cup bag of Hungry Hound = 5 Days
Step-by-step explanation:
this is question based on simple algebraic equations
Simple Algebraic equations - An algebraic equation can be defined as a mathematical statement in which two expressions are set equal to each other. The algebraic equation usually consists of a variable, coefficients and constants. we can apply many operations on algebraic equations like addition, subtraction, multiplication, division and raising to a power, and extraction of a root.
so in the question algebraic operation used to solve is simple division.
therefore, according to the question -
Total cups of Hungry Hound dog food pickles eats each day are - 3 cups
Total number of cups of Hungry Hound Terrence have = 15 cups
Number of days Terrence can feed pickles from these cups are =
15/3 = 5 days
so the correct answer is = 5 Days
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need help asap! Fill in the blank by entering just a number…
Answer:
x = 6
Step-by-step explanation:
CT is a median, which means it divided AB into two equal parts so we can write the following equation:
7x + 9 = 5x + 21 transfer like terms to the same side of the equation
7x - 5x = 21 - 9 do the extraction
2x = 12 divide both sides by 2
x = 6
. put these numbers in order, from least to greatest. if you get stuck, consider using a number line. 3.5 -1 4.8 -1.5 -0.5 -4.2 0.5 -2.1 -3.5 2. write two numbers that are opposites and each more than 6 units away from 0.
Is -7=7 an infinite solution or no solutions for a system of equations?
Answer:
no solutions
Step-by-step explanation:
-7 does not equal 7, so there are no solutions.
Infinite solutions would be if it was two equal values, for example, 7 = 7.
There are x boys in a class. If the
number of girls are 3x + 1, how many
boys and girls are in the class
altogether.
Answer:
4x+1
Step-by-step explanation:
3x+x+1=4x+1
can someone confirm why it's not? im *pretty* sure it's d?
Answer:
yes it is I'm sure of it ok.
What is the greatest common factor of 10 and 3? i dont get this i have a math touter that wont really help and i still dont understand. by the way i was not using brainly touter.
if u have the time to help please answer
Answer:
1
Step-by-step explanation:
listing the factors of both numbers
factors of 10 are 1, 2, ,5, 10
factors of 3 are 1, 3
the only common factor to both is 1
the greatest common factor is 1
This circle is centered at the origin, and the length of its radius is 10. What is
the circle's equation?
O A. x² +2²=100
OB. x+y=10
O C. x¹0 + 10 = 100
O D. x² + y² = 10
a
5
10
Answer:
[tex] {x}^{2} + {y}^{2} = 100[/tex]
The equation of the circle is x² + y² = 100.
Option A is the correct answer.
What is a circle?A circle is a two-dimensional figure with a radius and circumference of 2pir.
The area of a circle is πr².
We have,
The circle's equation is:
x² + y² = r²
where r is the length of the radius.
In this case, r = 10, so the equation becomes:
x² + y² = 10²
Simplifying:
x² + y² = 100
Therefore,
The equation of the circle is x² + y² = 100.
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What value of x is in the solution set of 3(x – 4) ≥ 5x 2? –10–5510
3(x-4) ≥ 5x +2
3*x - 3*4 ≥ 5x +2
3x - 12≥ 5x - 2
-12 + 2 ≥ 5x- 3x
-10 ≥ 2x
2x ≤ -10
x ≤ -5
Find the gradient of the line segment joining of
(1, 1) and (3, 5)
Answer:
2
Step-by-step explanation:
[tex]\text{First I'd recommend using this little equation:}\\\text{m}=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{Substitute the values::}\\\text{m}=\dfrac{5-1}{3-1} \\\text{m}=\dfrac{4}{3}[/tex]
[tex]\rule{300}{1.7}[/tex]
[tex]\text{The gradient is:: }\dfrac{4}{3}[/tex]
2. Which of the following is true for the relation f(x) = x² + 8
only the equation is the function Only the in inverse is a function Neither the equation nor it’s inverse is a function Both the equation and it’s inverse are function
Answer:
Only the equation is the function
100 points, PLEASE HELP MEEE
Answer:
b = 3a
Step-by-step explanation:
a = < - 1, 3 >
b = < - 3, 9 >
Thus
b = 3a
Answer:
b = 3a
Step-by-step explanation:
What is the domain of the function y=√x?
Answer:
[0, ∞)
(all real numbers greater than or equal to 0)
Explanation:
the domain of a function is all possible x-values (and the range is all possible y-values)
We know that you cannot have a negative square root, so all negative x-values are not possible--only values 0 to infinity.
So the domain of this function is [0, ∞).
{ [brackets] in math mean the number is included, (parentheses) in math means the number is not included.}
All [real] numbers ≥ 0
is the domain of y=√x
(written as: all real numbers greater than or equal to 0)
a city's monthly precipitation amounts, in inches, for the last two years are recorded in the table. which histogram corresponds to the table?
Based on the given histograms, and the table on the city's monthly precipitation amounts, the histogram that corresponds to the table is Histogram 1.
Which histogram is the appropriate fit?The number of months with 0 - 1.992 inches is 8 months which means that the first bar on the histogram of between 0 to 2 inches should reach the 8 month mark.
6 months had 1.992 - 3.994 inches so the next bar should stop at the 6th month mark. The next bar should stop at the 4 month mark.
The one after that should stop at the 5 month mark. The last bar would stop at the 1 month mark.
The only histogram that has this is histogram 1 which is not shown clearly but it likely the only one with these qualities as the others don't have it.
Rest of the question:
Amount (inches) 0 - 1.992 - 3.99 4 -5.996 - 7.998 - 9.99
Number of Months 8 6 4 5 1
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What reason allows the following statement to be true?
Given Ð1 & Ð2 are a linear pair, then mÐ1 + mÐ2 = 180
Two angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line.
What are supplementary angles?Two angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line. Those two-two angles are two pairs of supplementary angles. That means, that if supplementary angles are aligned adjacent to each other, their exterior sides will make a straight line.
When two lines cross at a single point, a linear pair of angles is generated. If the angles are next to each other after the two lines intersect, they are considered to be linear pairs. The total of the angles of a linear pair is always 180°. These angles are also referred to as supplementary angles.
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Seven times the twice of a number and 6 equals 4
Answer:
7(2a+6) = 4
and the answer is:
19/7
Step-by-step explanation:
7(2a+6) = 4
7*2a + 7*6 = 4
14a + 42 = 4
14a = 4 - 42
14a = -38
a = -38/14
a = -19/7
What are the slope and the y-intercept of the linear function that is represented by the graph?
The slope is Two-thirds, and the y-intercept is –2.
The slope is Two-thirds, and the y-intercept is 3.
The slope is Three-halves, and the y-intercept is –2.
The slope is Three-halves, and the y-intercept is 3.
The slope and the y-intercept of the linear function represented by the graph is given as follows:
The slope is two-thirds, and the y-intercept is –2.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.Looking at the graph, when x = 0, y = -2, hence the y-intercept is of -2. The slope is given by change in y divided by change in x, hence considering that the graph also goes through (3,0), it is given by:
[tex]m = \frac{0 - (-2)}{3 - 0} = \frac{2}{3}[/tex]
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10
8
6
4
2
10 8 64-2
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4
6
-8
618
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2 4 6 8 10
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A circle centered at the origin contains the point
(0, -9). Does (8, √17) also lie on the circle? Explain.
O No, the distance from the center to the point
(8, √17) is not the same as the radius.
O No, the radius of 10 units is different from the
distance from the center to the point
(8, √17).
O Yes, the distance from the origin to the point
(8, √17) is 9 units.
O Yes, the distance from the point (0, -9) to the point
(8, √17) is 9 units.
Approximate value of √17
~4+So the point is (8,4)
As we can see in graph the point is contained by the circle
Hence the distance
√(0-8)²+(9-4)²√8²+5²√89Approximately 9 units
Option D
Answer:
Yes, the distance from the origin to the point (8, √17) is 9 units
Step-by-step explanation:
Equation of a circle
[tex](x-a)^2+(y-b)^2=r^2[/tex]
where:
(a, b) is the centerr is the radiusGiven:
center = (0, 0)r = 9Substitute the given values into the formula to create the equation of the circle:
[tex]\implies (x-0)^2+(y-0)^2=9^2[/tex]
[tex]\implies x^2+y^2=81[/tex]
To find if point [tex]\sf (8, \sqrt{17})[/tex] lies on the circle, substitute x = 8 into the found equation and solve for y:
[tex]\implies 8^2+y^2=81[/tex]
[tex]\implies 64+y^2=81[/tex]
[tex]\implies y^2=81-64[/tex]
[tex]\implies y^2=17[/tex]
[tex]\implies y=\sqrt{17}[/tex]
As y = √17 when x = 8, this proves that point (8, √17) lies on the circle.
The distance from the origin to any point on the circle is the radius.
Therefore, as the radius is 9 units, the distance from the origin to the point (8, √17) is 9 units.
What’s the value of y?
Answer:
50°
Step-by-step explanation:
because there opposite to each other.
can someone please help meee
Answer:
-10
Step-by-step explanation:
y2- y1 -7 -3
---------- ----------
x2 - x1 -6 6
4. Liam can work at most 20 hours a week but he needs to earn at least $125. His dog-walking job pays
$7 per hour and his job as a car-wash attendant pays $11 dollars an hour. How can he earn $125?
Graph a system of linear inequalities that represents this situation. Using the graph, what are two
possible solutions to the system of inequalities?
Two possible solutions are: (4.5, 8.5) and (8, 6.3)
How to graph the inequality?Let x represents hours dog walking and y represents hours washing cars.
So, we have:
Earnings = Rate of dog walk * x + Rate of car wash * y
This gives
Earnings = 7x + 11y
He wants to earn at least $125.
This means that:
7x + 11y ≥ 125
See attachment for the graph of the inequality
From the attached graph, two possible solutions are: (4.5, 8.5) and (8, 6.3)
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Convert 15 degree Celsius into Fahrenheit
Answer:
59 ° F
Step-by-step explanation:
F = 9/5 C + 32
= 9/5 (15) + 32 = 59 ° F
Mike has 63 toys. 18 of them are new and 12 are his favorites, while 4 are new and favorites. Mike is giving away all the toys that are neither new nor favorites. How many toys does mike have? ASAp
Answer:34
Step-by-step explanation:
Giving away all that is not new or fav so 12 fav + 18 new + 4 which are new an favorite = 34
Answer:
22
Step-by-step explanation:
63 is the total
14 are new
8 are fav
14+8=22
Prove the triangles a re similar
Step-by-step explanation:
LINE B.I is parallel to LINE O.D
therefore :Ô = Î ( alternate angles )
: Ď = B ( alternate angles )
In ️ B. I. G and ️ D O G
O = I ( alternate angles)D = B ( alternate angles)G = G ( 3rd angle of️ )️ BIG is similar to ️ DOG
