Answer:(-5,-7)
Step-by-step explanation:
Rewrite in Vertex form and use this form to find the vertex (h,k)
Answer:
y = (x + 5)² - 7
Step-by-step explanation:
Given
y = x² + 10x + 18
To obtain vertex form use the method of completing the square
add/ subtract ( half the coefficient of the x- term )² to x² + 10x
y = x² + 2(5)x + 25 - 25 + 18
= (x + 5)² - 7 ← in vertex form
Please help, Im really struggling
The officers of the local high school’s Parent Teacher Association (PTA) are planning a dinner. At the dinner, the PTA will present the Teacher-of-the-Year award to a teacher in the school. Which population should the officers survey to identify the teacher who should get this award?
A. All of the members of the PTA.
B. All of the students in the school.
C. All of the teachers in the school.
D. All of the parents of the students in the school.
Answer:
Sorry i'm late
It's B: All of the students in the school
Step-by-step explanation:
Did the quiz
Barry drew a scale drawing of an office building. The scale of the drawing was 3
inches = 2 feet. A desk is 6 feet long in real life. How long is the desk in the
drawing?
Answer:
3inches=2feet and
Xinches=6feet so Cross multiply
2X=18 divided both sides by 2
X=9inches therefore
the answer is 9inches
HBHBVHBHEBCB PLEASE HELP WHAT IS :
x/6= -2
Find the coordinates of the intersection of the diagonals of DEFG with the vertices D(-2, -3), E(0, 4), F(-4, 3), and G(-6, -4)
Answer:
(-3,0)
Step-by-step explanation:
midpoint DF = (-6/2,0) or (-3,0)
midpoint EG = (-6/2,0) or (-3,0)
helppppppppp plss (q+ (-5)/(3)=8
Answer:
(q-5)/3=8
q-5=24
q=24+5=29
Answer:
Step-by-step explanation:
(q+(-5)/3)=8
q-5/3=8
q-5=8*3
q-5=24
q=24-5
q=19
Question on image. (6)
will report answers out of question. Thank you
Answer:
the answer is 6 i think
Step-by-step explanation:
Answer:
XW=5
Step-by-step explanation:
WY is congruent with ZW, so WY=12
XY is the radius, so XY=13
Since this is a right triangle, you use Pythagorean therom to solve for XW.
a²+b²=c²12²+x²=13²144+ x²=169x²=25x=5XW=5
what is the slope of the line parallel to 9/10x +4y =70
Answer:
y=−9/40x+3/52
Using the slope-intercept form, the slope is −9/40.
the slope: m=−9/40
Step-by-step explanation:
please help a girl out
Answer:
[tex]r=\frac{7±3\sqrt{5} }{2}[/tex]
Ignore the A before the ±. It wouldn't let me type it correctly.
Step-by-step explanation:
2r² + 7r - 1 = 3r²
2r² + 7r - 1 - 3r² = 0
- r² + 7r - 1 = 0
- (r² - 7r + 1) = 0
- (r² - 7r + 1) ÷ - 1 = 0 ÷ - 1
r² - 7r + 1 = 0
[tex]r=\frac{-b±\sqrt{b^{2}-4ac } }{2a}[/tex]
Ignore the A before the ±. It wouldn't let me type it correctly.
r² - 7r + 1 = 0
a = 1
b = - 7
c = 1
[tex]r=\frac{-(-7)±\sqrt{(-7)^{2}-4((1)(1)) } }{2(1)}[/tex]
[tex]r=\frac{-(-7)±\sqrt{49-4((1)(1)) } }{2(1)}[/tex]
[tex]r=\frac{-(-7)±\sqrt{49-4 } }{2(1)}[/tex]
[tex]r=\frac{-(-7)±\sqrt{45 } }{2(1)}[/tex]
[tex]r=\frac{-(-7)±\sqrt{(3)(3)(5) } }{2(1)}[/tex]
[tex]r=\frac{7±(\sqrt{3 } )(\sqrt{3})(\sqrt{5}) }{2(1)}[/tex]
[tex]r=\frac{7±3\sqrt{5} }{2}[/tex]
Two separate equations
[tex]r=\frac{7+3\sqrt{5} }{2}[/tex]
[tex]r=\frac{7-3\sqrt{5} }{2}[/tex]
Solve the triangle. Round decimal answers to the nearest tenth
Answer:
my answer is in this picture
pleaseee helppp meee!!!!
Answer:
Vertical change of point C to B = 4.5
Vertical change of point A to D = -4
Step-by-step explanation:
Vertical change of a point is the rise of the given point.
Now we have to calculate the rise of point C to B,
y-coordinate of the point C → -2.5
y-coordinate of the point B → 2
Rise from C to B = 2 - (-2.5)
= 2 + 2.5
= 4.5
Similarly, y - coordinate of point A → 2
y - coordinate of point D → -2
Vertical change or rise = -2 - 2
= -4
Therefore, vertical change of point C to B = 4.5
Vertical change of point A to D = -4
A movie theater sells up to 10 tickets at a time online. What is the domain of this graph?
Answer:
I think the correct answer is B
1/8 pens are in a bag and is to be shared between 3 people . What fraction of pen should each person get?
Answer:
1/24
Step-by-step explanation:
1/8 divided 3/1
1/8 x 1/3=1/24
State the slope and the y-intercept for the graph of the equation. y= -2
1; -2
0; -3
-2; 0
0; -2
Answer: 0; -2
Step-by-step explanation:
Data: y-intercept=x and slope=x
Equation=y=-2
Only step, Point out the y-intercept and slope
-2=y-intercept
0=slope
Reason: Since there is no visible slope, the placeholder would be 0 therefore the slope would be 0, -2 is the only number left so that means the only number that can be y-intercept is -2.
That is why the slope is 0 and the y-intercept is -2
I hope this helps!
please help me i dont understand
Answer:
Step-by-step explanation:
take 52 degree as reference angle
using tan rule
tan 52=opposite/adjacent
1.27=x/21
1.27*21=x
26.67=x
26.9=x
Simplify the following....
Want it with explanation...
Will give brainliest for the best...
Answer:
it is about 3.78 if you round to the nearest hundredth
in given circle O find the value of AB
Answer:
AB = 32 in
Step-by-step explanation:
The value of AB is same as the value of the other chord, it's divided by two similar parts which are 16 each, so the value of AB becomes 16*2= 32 in
Answered by GAUTHMATH
Ratio for 30 boys to 50 girls
Answer:
30:50 OR Can reduce it to 3:5
Step-by-step explanation:
30: 50 OR 3.5
Answer:
3 : 5
Step-by-step explanation:
30boys : 50girls= 30 : 50 = 30/50 = simplify = 3/5= 3/5 change into ratio is 3 : 53 : 5Michelle throws a frisbee into the air. The height of the frisbee at a given time can be modeled by the equation h(t)= -2t
Answer:
(a) The ball will hit the ground after 3 seconds
(b) The maximum height is 6.125
Step-by-step explanation:
Given
[tex]h(t) = -2t^2 +5t +3[/tex]
Solving (a): When the frisbee will hit the ground?
To do this, we set h(t) to 0
So, we have:
[tex]h(t) = -2t^2 +5t +3[/tex]
[tex]-2t^2 +5t +3=0[/tex]
Expand
[tex]-2t^2 +6t-t +3=0[/tex]
Factorize
[tex]-2t(t - 3) -1(t - 3) = 0[/tex]
Factor out t - 3
[tex](-2t -1)(t - 3) = 0[/tex]
Split:
[tex]-2t -1= 0\ or\ t - 3 = 0[/tex]
Solve for t in both equations
[tex]-2t =1\ or\ t = 3[/tex]
[tex]t =-\frac{1}{2}\ or\ t = 3[/tex]
Time can't be negative; So:
[tex]t = 3[/tex]
Solving (b): How height the frisbee will go?
First, we calculate time to reach the maximum height
[tex]t = -\frac{b}{2a}[/tex]
Where:
[tex]h(t) = at^2 + bt + c[/tex]
By comparison:
[tex]a = -2,\ b =5,\ c =3[/tex]
So:
[tex]t = -\frac{b}{2a}[/tex]
[tex]t = -\frac{5}{2*-2}[/tex]
[tex]t = \frac{5}{4}[/tex]
[tex]t = 1.25[/tex]
So, the maximum height is:
[tex]h_{max} = -2 * 1.25^2 + 5 * 1.25 + 3[/tex]
[tex]h_{max} = 6.125[/tex]
What is the solution to this equation?
2x-x+ 9 + 3x - 2 = 16
A. x=23/4
B. x-9/4
c. x-23/5
D. x-9/5
Answer:
the answer for this question is B
Answer:
x=9/4
If you want the steps I can add them for you.
Step-by-step explanation:
I believe this is correct, if not let me know and I'll fix it. I'm sorry in advance if it is incorrect.
Please help , whoever gets right is brainly
Answer:
Try an app called connects. I cant help you with this problem but that app can. it has tutors and other things that can help.
Step-by-step explanation:
Intermediate Algebra help, please <3
Step-by-step explanation:
b
I told you because I did it
solve inequality for x : -46 - 8x > 22
Answer:
x < -17/2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define
Identify
-46 - 8x > 22
Step 2: Solve for x
[Addition Property of Equality] Add 46 on both sides: -8x > 68[Division Property of Equality] Divide -8 on both sides: x < -17/2Answer: x < −17/2
Step-by-step explanation:
Let's solve your inequality step-by-step.
−46 − 8x > 22
Step 1: Simplify both sides of the inequality.
−8x − 46 > 22
Step 2: Add 46 to both sides.
−8x − 46 + 46 > 22 + 46
−8x > 68
Step 3: Divide both sides by -8.
−8x/−8 > 68/−8
x < −17/2
Apply the distributive property to create an equivalent expression. 12(2a - 6b+ 8) = 2 1 (2a−6b+8)
Answer:
a+4=11b
Step-by-step explanation:
Distributive property in mathematics means to multiply the sum by a number of two or more add-ons will provide the same result that each add-on multiplies by a single number and then together add the products.
for example a( b+c) = ab+ac
Therefore, applying distributive property in asked eapression
12(2a - 6b+ 8) = 21(2a−6b+8)
24a+72b+96 = 42a-126b+168
198b=18a+72
9a +36=99b
3a+12=33b
a+4=11b
Solve the system of equations 7x+3y=-37x+3y=−3 and 3x+y=13x+y=1 by combining the equations.
Answer:
ummmmmm
Step-by-step explanation:
I don't know
What is the perimeter of this equilateral triangle?
Choices
4
20
40
60
Answer:
60
Step-by-step explanation:
If it is an equilateral triangle the sides are equal
24-x = 5x
Add x to each side
24-x+x = 5x+x
24 =6x
Divide by 6
24/6 =6x/6
4 =x
Each side is 5x or 5*4 = 20
Add the 3 equal sides
20+20+20 = 60
The perimeter is 60
Answer:
60
Step-by-step explanation:
In this case, to find the perimeter, we need to know the value of at least one side.
Since this triangle is equilateral, [tex]5x=24-x[/tex].
Adding x to both sides results in [tex]6x=24[/tex], and subsequently, [tex]x=4.[/tex]
Now that we know x equals 4, we can plug this into either 5x or 24-x and find out that one of the sides is 20.
Equilateral triangles have three equal sides, so 20 times 3, or 60, is the perimeter. I hope this helped!
30. The area of the rectangular floor in
Tamara's room is 95 square feet. The
width of the room is 8 feet.
Answer:
It has given that the area of the rectangular floor in Tamara's room is 95 ⅚ square feet. the width of the room is 8 ⅓ feet.
Which slope gives the line the steepest slant? - 13/4 or - 12/5
Answer:
-13/4
Step-by-step explanation:
uhh yeah i need help please
We first need to figure out our pattern. It looks like we are subtracting 7 each time.
Using that pattern, let's continue it!
43 - 7 = 36
36 - 7 = 29
29 - 7 = 22
Hope this helps!! :)
Answer:
36,29,22
Step-by-step explanation:
64 - 57 = 7
57-50 =7
50-43=7
We are subtracting 7 each time
43-7 =36
36-7 = 29
29 -7= 22
The points ( − 4 , 9 ) and ( 4, −9) lie on the same line. What is its equation in slope-intercept form of this line?
Answer:
y = -9/4x
Step-by-step explanation:
First find the slope
m = (y2-y1)/(x2-x1)
= ( -9-9)/(4 - -4)
( -9-9)/(4+4)
-18/8
-9/4
Slope intercept form is
y= mx+b where m is the slope and b is the y intercept
y = -9/4 +b
Substitute a point into the equation
9 = -9/4(-4) +b
9 = 9+b
b=0
y = -9/4x
Diego’s family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less.
1. Starting from a full tank, can Diego's family drive the car for 14 days without the warning light coming on? Explain your reasoning.
2. Starting from a full tank, can Diego’s family drive the car for 25 days without the warning light coming on? Explain your reasoning.
3. Diego says the expression 14 - 0.6t helps him to understand this situation. What does this expression represent, and what does the variable t stand for?
4. Write and solve an equation to determine the number of days Diego’s father can drive the car without the warning light coming on.
5. Write and solve an inequality that represents this situation. Explain clearly what the solution to the inequality means in the context of this situation.
Answer:
1) if he wants to do that he needs 0.6 gallons x 14 days = 8,4 gallons.
If the car starts with 14 gallons then he is able to ride 14 days without the warning light.
2) now he would need 0.6 gallons x 25 days = 15 gallons.
he only has 14 gallons so that is not possible.
3) no clue sorry
4) x= the days he can drive without the warning light
14-1,5 = 0,6.x
<=>12,5= 0,6.x
<=>20,833... = x
He can go 20 days without the warning light.
5) x= the days he can drive his car without seeing the warning light.
x.0,6<12,5
<=> x<20,833...
If he drives 20,833... days he will see the warning light so everything before that he won't see it.