Answer:
D. 7s
Step-by-step explanation:
h(t) = height off the ground
We know the height of the ball at the point when it hits the ground will be 0, so we set h(t) = 0:
h(t) = -16(t - 7)(t + 2) = 0
In order for this to be true, either:
"t - 7 = 0" or "t + 2 = 0"
We can solve these to get the times at which the ball will hit the ground, which gives:
t = 7 or t = -2
-2s is not a logical time because the ball can't hit the ground before it is thrown so this solution is not relevant;
7s therefore is the correct solution
What additional information do you need to prove ∆ABC ≅ ∆DEF by the SSS Postulate?
Answer:
The first choice AB congruent to DE
Step-by-step explanation:
we already know that the other sides are congruent by looking at the dashes on the side, but there is no indicatation that that Side AB and side DE are congruent
please help calculate
Step-by-step explanation:
the answer is in the above image
What is the constant of proportionality of the fowllowing equation y=4x
Answer:
4 is the constant in this case.
which of the following is a point slope equation of a line with the point (-6,2) and a slope of 1/2?
Answer:
y - 2 = 1/2(x + 6)
General Formulas and Concepts:
Algebra I
Point-Slope Form: y - y₁ = m(x - x₁)
x₁ - x coordinate y₁ - y coordinate m - slopeStep-by-step explanation:
Step 1: Define
Identify
Point (-6, 2)
Slope m = 1/2
Step 2: Find
Substitute in variables [Point-Slope Form]: y - 2 = 1/2(x - -6)Simplify: y - 2 = 1/2(x + 6)Some one say that if you multiply or divide each side of an inequality by a negative number, the inequality sign changes directions. He give an example: -2x < 6, then x > -3. Is the statement true or false?
Answer:
True
Step-by-step explanation:
Answer:
Step-by-step explanation:
It is true!
Let's say we subtract 6 from both sides
-2x -6< 0 Now Let's add 2x to both sides
-2x + 2x - 6 < 0 + 2x
- 6 < 2x We did so we would be dividing by a number greater than 0. Divide by + 2
-6/2 < 2x / 2
-3 < x Notice you still get the open end of the inequality sign closest to the x without changing the direction of the inequality.
The bakery owner will use both machines to glaze a total of 375 dozen
doughnuts. She plans to start both machines at the same time.
Based on the rates fromwhat is the total number of hours it
will take both machines working together to glaze 375 dozen doughnuts?
Answer:
2250 i think
Step-by-step explanation:
2 intersecting lines are shown. A line with points T, R, W intersects a line with points S, R, V at point R. Angle T R V is 95 degrees. mAngle SRW = °
Answer:
m<SRW = 95degrees
Step-by-step explanation:
If a line with points T, R, W intersects a line with points S, R, V at point R with the point of intersection at R, this means that;
m<TRV = m<SRW (vertically opposite angles)
Since m<TRV = 95 degrees, hence <SRW = 95degrees
Follow the directions to solve the system of equations by elimination.
8x + 7y = 39
4x – 14y = –68
Multiply the first equation to enable the elimination of the y-term.
Add the equations to eliminate the y-terms.
Solve the new equation for the x-value.
Substitute the x-value back into either original equation to find the y-value.
Check the solution.
The solution to the system of equations is (
,
).
Which answer matches this description? 15 minus the quotient of 50 and 10 15 = (50 - 10) (50 - 15) + 10 (50 - 10) - 15 15 - (50 = 10)
Answer:
The bottom left one
15 - (50 / 10)
Step-by-step explanation:
15 minus the quotient of 50 and 10
Keywords:
Minus: subtraction meaning we would use (-)
Quotient: Quotient is the outcome of division (/)
15 minus the quotient of 50 and 10
Replace minus with (-)
15 - the quotient of 50 and 10
Get rid of quotient and add a division sign between 50 and 10
15 - 50 / 10
Add parenthesis
15 - (50 / 10 )
whats the angle of J
Answer:
<J = 59
Step-by-step explanation:
Since this is an isosceles triangle, <J and <H are the same
The sum of the angles in a triangle are 180
62+ <J + <H =180
62+ <J + <J = 180
62 + 2 <J =180
Subtract 62 from each side
2 < J = 180-62
2 < J = 118
Divide by 2
<J =118/2
<J = 59
Answer:
∠J = 59 °
Step-by-step explanation:
Its two angle is equal so, it is isosceles triangle.
so, ∠J and ∠H are same.
We know that sum of angles of triangle is 180°.∠J = ∠H .. ( in isosceles triangle two side are equal).
so, ∠J = ∠J
62° + ∠J + ∠ J = 180°
combine like terms
62° + ∠2J = 180°
Subtract 62 from each side
62° - 62° + ∠2J = 180° - 62°
∠2J = 118°
Divide each side by 2
∠2J/2 = 118° / 2
∠J = 59 °
Verification :-
∠J + ∠H + 62° = 180°
59° + 59° + 62° = 180°. .( ∠J =∠H - proved above)
118° + 62° = 180°
180° = 180°
LHS = RHS
-3x + 7 = 5x + 4 - 8x
looking for help to answer with work ?
Answer:
no solutions
Step-by-step explanation:
-3x + 7 = 5x + 4 - 8x
Combine like terms
-3x+7 = -3x+4
Add 3x to each side
-3x+7+3x = -3x+4+3x
7 = 4
This is not a true statement so there are no solutions
SHOW ALL WORK PLZ
1. 37cm= ___ mm 2. 20m=___cm 3. 34in=___mm 4. 20m=___km 5. 29km=___m
Answer:
3702000863.60.0229000Step-by-step explanation:
1 cm = 10 mm1 m = 100 cm1 in = 25.4 mm1 m = 0.001 km1 km = 1000 m1. Use proportions and cross-multiply:
[tex]\frac{X mm }{37cm} =\frac{10 mm}{1cm} \\x = 37 * 10 = 370[/tex]
2. Use proportions and cross-multiply:
[tex]\frac{20 m}{X cm} =\frac{1 m}{100cm} \\x=20*100=2000[/tex]
3. Use proportions and cross-multiply:
[tex]\frac{34in}{Xmm} =\frac{1in}{25.4mm} \\x=34*25.4=863.6[/tex]
4. Use proportions and cross-multiply:
[tex]\frac{20m}{Xkm} =\frac{1m}{0.001km} \\x=20*0.001=0.02[/tex]
5. Use proportions and cross-multiply:
[tex]\frac{29 km}{Xm}=\frac{1 km}{1000m} \\x=29*1000=29000[/tex]
How many four-letter permutations can be formed from the first five letters of the alphabet?
Answer:
120
Step-by-step explanation:
formula:
[tex]\frac{n!}{(n-h)!}=\frac{5!}{(5-4)!}=120[/tex]
Using the complement method, calculate the net price on an invoice amount for
$1,323.50 with a 15% trade discount.
Answer:
Not completely sure but i think the answer is 1124.975
Step-by-step explanation:
The equation of a function is given.
f(x)=(2x-3)(3x+4)
What is one of the zeros of the function?
Answer:
3/2 or -4/3
Step-by-step explanation:
2x-3=0, 3x+4=0
x=3/2 or-4/3
Find the area. Simplify your answer.
x+8
X+9
Answer:
incomplete question i will assume that you have an rectangle
(x+8) by (x+9)
area = x^2 + 17x + 72
Step-by-step explanation:
Please help really Urgent
can someone please help me with this?
9514 1404 393
Answer:
x = 3
Step-by-step explanation:
Tangents to a circle from the same point are the same length.
43 -2x = 12x +1
42 = 14x . . . . . . . add 2x-1
3 = x . . . . . . . divide by 14
When a 6 foot tall fence pole cast a 10 foot shadow, a pine tree cast a 65 foot shadow. How tall in the tree?
Answer:
39 feet.
Step-by-step explanation:
If a 6 foot pole cast 10 feet continue to mutiply 6 until you get to 60 and once you get to 60 half the 6 into 3 adding 3 feet.
What type of triangle is formed by the side lengths below? 7cm 9cm 11cm A. Acute B. Right C. Obtuse D. Cannot form a triangle
Answer:
A. Acute
Step-by-step explanation:
To start, determine whether you can form a triangle or not. In any triangle, the sum of any two sides must be greater than the third side. In this case, this holds true and we can definitely form a triangle.
Let [tex]c[/tex] be the longest side of the triangle and let [tex]a[/tex] and [tex]b[/tex] be the other two sides.
If [tex]a^2+b^2>c^2[/tex], the triangle is acute.
If [tex]a^2+b^2=c^2[/tex], the triangle is right.
If [tex]a^2+b^2<c^2[/tex], the triangle is obtuse.
Substituting given information:
[tex]7^2+9^2>11^2[/tex], therefore the triangle is acute.
please help marking like brainlist
Answer:
c
Step-by-step explanation:
Which of the following is a factor of x3 + 2x2 - 25x – 50?
Answer:
(x - 5)(x + 2)(x + 5)
Step-by-step explanation:
x³ + 2x² - 25x - 50
x³ + 7x² - 5x² - 35x + 10x - 50
x(x² + 7x + 10) - 5(x² + 7x + 10)
(x - 5)(x² + 7x + 10)
(x - 5)(x² + 2x + 5x + 10)
(x - 5)(x(x + 2) + 5(x + 2))
(x - 5)(x + 2)(x + 5)
Darius is studying the relationship between mathematics and art. He asks friends to each draw a "typical” rectangle. He measures the length and width in centimeters of each rectangle and plots the points on a graph, where x represents the width and y represents the length. The points representing the rectangles are (6.1, 12.0), (5.0, 8.1), (9.1, 15.2), (6.5, 10.2), (7.4, 11.3), and (10.9, 17.5). Which equation could Darius use to determine the length, in centimeters, of a "typical” rectangle for a given width in centimeters?
y = 0.605x + 0.004
y = 0.959x + 0.041
y = 1.518x + 0.995
y = 1.967x + 0.984
Answer:
its the 4th one
Step-by-step explanation:
Answer:
the answer is C y=1.518x+0.995
Step-by-step explanation:
PLEASE HELPPP!!
What number line represents the solution set for the inequality 3(8-4x)<6(x-5)?
Answer:
3(8-4x) < 6(x-5)
24-12x < 6x-30
24+30 < 6x+12x
54 < 18x
54\18 < x
3 < x
It means the ans is option no. b
Step-by-step explanation:
3(8-4x)<6(x-5)
24-12x<6x-30
-12x-6x<-30-24
-18x>-54
Divide both sides by -18
=x>3
Ans is B(second number line)
Which arc is congruent to Arc E H? Arc G H Arc F H Arc G E Arc F G
Answer: GE
Step-by-step explanation:
uh i just know it’s the answer
Answer:
C. G E
Step-by-step explanation:
Find the common difference of the arithmetic sequence
Answer:
The common difference is 1/5.
Step-by-step explanation:
Each new term is equal to the previous term, plus the common difference 1/5.
-2 + 1/5 = -10/5 + 1/5 = -9/5 = -1 4/5, and so on.
Answer:
Step-by-step explanation:
[tex]c.d.=-1\frac{4}{5} -(-2)\\=-\frac{9}{5} +2\\=\frac{-9+10}{5} \\=\frac{1}{5}[/tex]
THIS MY THIRD TIME POSTING THIS QUESTION PLEASE HELP MEE!!!
Answer:
From my thinking prospection the answer should be 18....
A ladder leans against the side of a house. The angle of elevation of the ladder is 68° when the bottom of the ladder is 16 it from the side of the house. Find the
length of the ladder Round your answer to the nearest tenth.
Answer:
The length of the ladder = 6.5077 ft
Step-by-step explanation:
Given A ladder leans against the side of a house
Given the angle of elevation of the ladder is 68° when the bottom of the ladder is 16 ft from the side of the house
Let 'C' be the point of observation.
Given CA= 16 ft
From right angle triangle
x = 16 × cos 68°
x = 16 × 0.4067
x = 6.5077
x = 6.5 ft
The length of the ladder = 6.5 ft
y = one-third (x + 2)
Answer:
Step-by-step explanation:
according to the question equation is
y=1/3*(x+2)
y=x+2/3
solve the inequality
x(6x+5)<0
Answer:
-5/6 < x < 0
Step-by-step explanation:
x(6x+5)
these are the factors of a quadratic that opens up. The value will be less than zero between the roots.
the roots are:
x = 0
6x + 5 = 0
6x = -5
x = -5/6
x = {-5/6, 0}
Therefor
x(6x + 5) < 0
-5/6 < x < 0
----------------------------
To see this visually look at the graph
See where the parabola is below the x-axis