Answer:
Step-by-step explanation:
Answer this by inserting a positive number between the '6x' and the '=' sign and then subtracting the same number:
x^2 + 6x + 9 - 9 = -2
Where does the "9" come from? Take half the coefficient of x (which is 6) and square the result (obtaining 36). Now add 36 after the "6x" and then subtract 36:
x^2 + 6x + 9 = 7
Rewrite this with a perfect square on the left side:
(x + 3)^2 = 7 Here we have successfully "completed the square."
the sum of three number is 202, the second is three more than the first number, the third number is three times the second number. what are the three numbers ?
Answer:
x = 38
y = 41
z = 123
Step-by-step explanation:
x + y + z = =202
y = x + 3
z = 3y = 3(x + 3) = 3x + 9
x + y + z = x + x + 3 + 3x + 9 = 5x + 12 = 202
5x + 12 = 202
5x = 190
x = 38
y = x + 3 = 41
z = 3y = 123
Pleaseeeeee helppppppp
Find the zeros of each function by factoring.
g(x) = x^2+ x-20
Answer:
4, -5
Step-by
I used the calculator
and it is always correct when factoring or it can be good for any type of algebraic equation
Help pleaseeeeeeee pleaseee
There are 2 painters painting a room with 4 walls. Each painter paints an equal part of the room. How much of the room does each painter paint?
Answer:
um 2 walls
Step-by-step explanation:
it would be 4/2 which = 2
Answer:
2
Step-by-step explanation:
If i have light brown hair would it be a good idea to bleach my hair
Giving brainlist
please help asap i’ll mark you brainliest!
Answer:
A
Step-by-step explanation:
-4 is the y-intercept, so there will always be an arrow that crosses over that point. And for the slope (2x) you need to go up two places from the y-intercept and then one to the right :)
Answer:
A
Step-by-step explanation:
The 2 in 2x-4 tells us that the line is rising, so that disqualifies answer B and C.
The -4 tells us the line passes the y axis at -4, so that disqualifies C and D.
Leaves A!
ok so im really confused and if you can explain with work would be great. (no pictures because i can't see them)
Answer:
Y=3x
so the answer is 27 miles
Step-by-step explanation:
3 is the slope
Sasha has $15 in her wallet. This is 20% of the total money she possesses. How much total money
does she have? Show work, using any method.
what is the average of 2,4,6,8
the answer plus 2
Answer:
3.26
Step-by-step explanation:
3.26666666667
A market stall holder bought a variety of coloured 'hoodies' to sell. Each hoodie costs the stall holder $20 and she intends to sell them to the public at a mark up of 65%
1) What profit does the stall holder make on the sale of each hoodie?
[tex]20 \times 0.65 = 13[/tex]
She would sell the hoodies for 33 dollars and she will make a profit of 13 dollars from each hoodie.
Brainiest answer to whoever is correct
Answer:
39 degrees
Step-by-step explanation:
Vertical angles are opposite angles made by two intersecting lines, this means they share a vertex. Vertical angles are always congruent. Congruent angles have the same measurements, so the other angle must be 39 degrees.
Which of the following statement is true?
a) 2 subtracted from -3 gives 1
b) -1 subtracted from -5 gives 6
c) 3 subtracted from -8 gives -11
d) 1 subtracted from -7 gives -6
Answer:
Te answer is (b)
Step-by-step explanation:
When you subtract negative numbers, the operation automatically becomes addition.
According to the rule negative plus negative equals positive.
(-1)-(-5)= 6
(-)+(-)=+
(-1)+(-5)= 6
Miles is throwing three darts at the board shown below. His score is the sum of all three darts. How many different possible total scores could Miles get with three darts?
A. 450
B. 46
C. 12
D. 10
Please help me my teacher doesn't know how to teach
Answer:
Whats the question
Step-by-step explanation:
Answer:
There are videos on Khan Academy about this one
what would the equation of y = x + 3 be if it is translated seven units up
Answer:
y = x + 10
Step-by-step explanation:
when translating a line up on a graph, the y-intercept increases as many units as it is translated.
&
Three angles of a quadrilateral are in the ratio 3 : 5 : 8. The mean of these
angles is 80°. Find all the four angles of the quadrilateral.
Answer:
See answers below
Step-by-step explanation:
Given the ratio of three angles as 3:5:8
Total ratio = 3+5+8 = 16
Mean = x+y+z/3
80 = x+y+z/3
x+y+z= 240
To get x;
x =3/16 * 240
x = 45degrees
To get y;
y = 5/16 * 240
y = 5 * 30
y = 75degrees
To get z;
z = 8/16 * 240
z = 120 degrees
Fourth angle = 360 - (120+75+45)
Fourth angle = 360-240
Fourth angle - 120 degrees
Calculate the area of this triangle.
17 cm
8 cm
15 cm-
Area - Triangles
Overview
Answer:
There are 3 possible answers because you didn't state which value was base or height.
Going off the assumption that the base is 15 cm and the height is 8 cm, the area is 60 cm. (same answer if base is 8 cm and height is 15 cm)
A = 1/2(b*h)
A = 1/2(15*8)
A = 1/2(120)
A = 60
Going off the assumption that the base is 17 cm and the height is 8 cm, the area is 68 cm. (same answer if base is 8 cm and height is 17 cm)
A = 1/2(b*h)
A = 1/2(17*8)
A = 1/2(136)
A = 68
Going off the assumption that the base is 15 cm and the height is 17 cm, the area is 127.5 cm. (same answer if base is 17 cm and the height is 15 cm)
A = 1/2(b*h)
A = 1/2(15*17)
A = 1/2(255)
A = 127.5
i will give brainlest if you get it correct
Answer:i think d.please dont blame me im not sure.sorry
Step-by-step explanation:
Answer:
The amount of time walking home from school and the distance left to arrive home.
Step-by-step explanation:
We want to find the zeros of this polynomial: p(x) = (x - 1)(x + 3) * (2x + 1) Plot all the zeros (-intercepts) of the polynomial in the interactive graph.
Answer:
Step-by-step explanation:
Because the function is a product, the zeros will occur when any term is equal to zero. For
(x-1)(x+3)(2x+1) the value will be zero when x=1,-3, or -1/2 so the points are
(-3,0), (-1/2,0), and (1,0)
The zeroes of the polynomials are, x=1,-3, or -1/2,Because the function is a product, zeros will appear whenever any term equals zero.
How do you determine a function's zeros and y-intercept?Zeros are the Intersection points of the curve of the considered function on the input axis.
y-intercept Points on the output axis where the curve of the considered function intersects.
On the x-axis, the value of the y-coordinate is 0. On the y-axis, the value of the x-coordinate is 0.
Thus, if the function is y=f(x), then placing y = 0 yields the function's zeros. Putting x = 0 produces the function's y-intercept.
Because the function is a product, the zeros will occur when any term is equal to zero.
(x-1)(x+3)(2x+1) =0
x=1,-3, or -1/2
The zeroes of the polynomials are, x=1,-3, or -1/2
To learn more about zeros and y-intercept, refer:
https://brainly.com/question/11990243
#SPJ2
PLEASE HELP! WILL MARK BRAINLIEST IF YOU'RE CORRECT! IF NOT, NO BRAINLIEST.
Answer:
CYLINDER
Step-by-step explanation:
Answer:
cylinder
Step-by-step explanation:
The circles are the top and bottom, and the rectangle wraps around the middle.
what is 10÷7
pls help
Answer:
1.42857142857
Step-by-step explanation:
Answer:
1.428571428 and some more I feel lazy adding more numbers
x^2 + z^2
when, x= 2 and z= - 2
Step-by-step explanation:
since x=2 and z=-2
4+4=8 [ because -2* -2=+4 ]
multiply (x+4)(2x-3)
Answer:
2x^2 + 5x - 12
Step-by-step explanation:
(x+4)(2x-3)
2x^2 - 3x + 8x - 12
2x^2 + 5x - 12
When unknown terms been added, what can we do to isolate them?
Answer:
Bring like terms together Bring like terms together. All equations have two sides.
what’s the answer for
this
Answer:
4/3
Step-by-step explanation:
The slope equals the rise/run
Start at the first point on the graph. Then count how many times you went up till you are parallel with the second point. That will be the rise, which in this case is 4.
Then from your new point count how many times you went right, and that will be your run. In this case it is 3.
Put the rise an top, and the run on bottom, and you get the slope 4/3!
I hope this helps, and have a great day!
A 22-foot ladder is placed against a vertical wall of a building, with the
bottom of the ladder standing on level ground 9 feet from the base of the building. How high up the wall does the ladder reach?
Answer:
Step-by-step explanation:
By the Pythagorean Theorem
[tex]h^2+9^2=22^2\\ \\ h^2=22^2-9^2\\ \\ h^2=403\\ \\ h=\sqrt{403}ft\\ \\ h\approx 20.07ft[/tex]
Matthew was collecting rocks and then weighing the results of his collection. The table below shows his results.Based on his results, which statement describes the relationship between r, the rocks collected, and w, the weight of the collection of rocks per quantity collected? A. The relationship is proportional because the ratio of w to r is constant. B. The relationship is not proportional because the ratio of w to r is not constant. C. The relationship is proportional because the ratio of w to r is not constant. D. The relationship is proportional because the difference between w and r is constant.
Answer:
C
Step-by-step explanation:
FREE BRAINLIEST! if you can answer this correctly ill give you brainliest and answer some of the questions you have posted :) thank you very much!!! (22pts)
Answer:
8 inches by 6 inches
Step-by-step explanation:
Reduce 120/96 ( turn into a decimal)
Do the same for the others.
You should get 1.25, and the one doesn't get that as a decimal doesn't represent the plot on a scale drawing.
In this case, it is 8 inches by 6 inches.
The radius of a circle is 4 miles. What is the circle's circumference?
r=4 mi
Use 3.14 for .
Answer:
C = 39.48
Step-by-step explanation:
C = r(3.14)^2
Answer:
25.13
C= 2πr = 2 · π · 4 ≈ 25.13274
Step-by-step explanation:
C= 2πr = 2 · π · 4 ≈ 25.13274