Answer:
1 and -3
Step-by-step explanation:
To solve for the roots (x-1)(x+3) set x-1 to = 0 and solve for x. Same thing for x+3.
Answer:
1, and -3
Step-by-step explanation:
So when looking for roots, we take our quadratic equation that is in factored form, and set each partheasese to 0:
x-1=0 and x+3=0
Now just subtract and add the -1 and +3 to both sides:
x=1 and x=-3
These are your 2 answers for the quadratic.
Hope this helps!
At the electronics emporium, 10 CDs are on sale. Marie can only afford to buy 3 CDs. How many combinations of CDs are possible?
Answer:
120 combinations of CDs are possible
Step-by-step explanation:
The total combinations could be
[tex]10C_3[/tex]
[tex]\frac{10*9*8*7!}{7!*3!}[/tex]
On further expanding, we get -
[tex]\frac{10*9*8}{3!} \\\frac{10*9*8}{3*2*1} \\= 10*3*4\\= 120[/tex]
Hence, 120 combinations of CDs are possible
Find the volume. I need answer answer ASAP
Answer:
[tex]A=448[/tex]
Step-by-step explanation:
To find the volume of the given figure, one must multiply the lengths of all sides together. Therefore, set up an equation and solve,
[tex]V = (l)(w)(h)[/tex]
(V) indicates volume, (l) indicates the length of the base, and (h) indicates the height of the figure.
Substitute,
[tex]V=(8)(14)(4)[/tex]
Solve,
[tex]A=448[/tex]
a boy kicks a 0.445kg soccer ball with the force of 75 newtons what is the acceleration of the soccer ball
Answer:
168.5 m/s^2
Step-by-step explanation:
Find the ratio in simplest form.
a) 24 to 56
Please help! Struggling with this a bit
Answer:
Rate of change= 9 Starting amount= 65
The equation would be y= 9x + 65
After 9 months, he would have 146 vreels
For the graph, put the points (0, 65) (2, 83) and (4, 101)
PLZ HELP!
Use the parabola tool to graph the quadratic function f(x)=-x^2+4
Graph the parabola by first plotting its vertex and then plotting a second point on the parbola.
Answer:
vertex and x= -b/2a = 0
second point, when x=1, y=3
third point the mirror of the second point over the vertex
Step-by-step explanation:
Do as described
Why can't 6cm 5cm 8cm make a triangle
Answer:
They can, the lines just need to be sloped
A certain television is advertised as a 54-inch TV (the diagonal length). If the width of the TV is 40 inches, how tall is the TV? Round to the nearest tenth of an inch.
Answer:
36.3
Step-by-step explanation:
I tried using the Pythagorean Theorem to measure the length (tallness) of the TV.
[tex]a^2 + b^2 = c^2[/tex]
[tex]a^2 + (40)^2 = (54)^2[/tex]
[tex]a^2 + 1600 = 2916[/tex]
[tex]a^2 = 2916-1600 = 1316[/tex]
[tex]a = \sqrt{1316}[/tex]
[tex]a = 36.27671429[/tex]
When this is rounded up to the nearest tenth, it would go up to 36.3.
So, the length (tallness) of the TV would be 36.3 inches.
Help me with this please
Answer:
1. 5
2. 8
Step-by-step explanation:
Drop your favorite American Horror Story character for 5 easy points
Answer:
the clown plz mark brainliest
Answer:
TATE AND BROOKE THOMPSON or any of emma roberts characters
HELP ME SOLVE THIS PLEASE You paid $600 for a new guitar. Your guitar cost $40 more than twice the cost of your friend's guitar. How much did your friend's guitar cost?
Answer:
520??
Step-by-step explanation:
600-80=520??
educated guess.
What is the fractional form of 0.02?
А. 2/99
B. 1/11
C. 2/100
D.1/12
please I've been looking for an answer to this question
Answer:
x = 9cm
using sine rule
a/sine(A) = b/sine(B)
a= x; A= 64° ( alternating angles)
b= 10 cm ; B = 90°
x/sine(64) = 10/sine(90)
x= {10 × sin(64)}/ sin 90
x = 9cm
Answer:
650
Step-by-step explanation:
Equations on both sides
3x + 5 = 2x -17
Solve it and show the work because i need to show the work
Answer:
x = -22
Step-by-step explanation:
Subtract 5 from both sides
3x + 5 (-5) = 2x - 17 (-5)
3x = 2x - 17
Subtract 2x from both sides
3x (-2x) = 2x (-2) -22
x = -22
How wide is the pond?
20ft
Step-by-step explanation:
lil kitty on the roof all aloe without his lady
39. If one student can complete the decorations for the prom in 5 days
working alone, another student could do it in 3 days, and a third could
do it in 4 days, how long would it take them working together?
Answer:
1.3 days
Step-by-step explanation:
1/5+1/4+1/3
12/60+20/60+15/60= 47/60
60/47
=1.3
Two employees of Frontier Fence Company can install 100 feet of fence in two days. Help a. What is the unit rate for one employee? b. Write a proportion to show the relationship between this rate and 150 feet of fence. c. At this same rate, how many employees are needed to install 150 feet of fence in one day? -2020 CPM Educational Program. All rights reserved.
Answer:25/day
Step-by-step explanation:
A rope is stretched from the top of a
7-foot tent pole to a point on the ground
12 ft from the base of the pole. How long
is the rope ?
Answer:
Step-by-step explanation:
we know two sides of a triangle, one side is 7 feet, the other is 12 feet , so use Pythagoras theorem
[tex]C^{2}[/tex] = [tex]A^{2}[/tex] + [tex]B^{2}[/tex]
[tex]C^{2}[/tex] = [tex]7^{2}[/tex] + [tex]12^{2}[/tex]
[tex]C^{2}[/tex] = 49 + 144
[tex]C^{2}[/tex] = 193
C = [tex]\sqrt{193}[/tex]
C = 13.89 feet
Answer:
The square of the hypotenuse equals the square of the sum of the other two sides.
13.89ft
Step-by-step explanation:
Definition Of Pythagoras Theorem :The Pythagorean theorem states that the total of the squares on a right triangle's legs equals the square on the hypotenuse (the side opposite the right angle)—or, in popular algebraic form, a2 + b2 = c2.
Given:Height of the Tent Pole = 7ft.
Base of the Pole of the Tent = 12ft.
Now we will use Pythagoras theorem to find how long the rope is.
Use of Pythagoras theorem
[tex]\begin{aligned}&C^{2}=A^{2}+B^{2} \\&C^{2}=7^{2}+12^{2} \\&C^{2}=49+144 \\&C^{2}=193 \\&C=\sqrt{193} \\&C=13.89 \text { feet }\end{aligned}[/tex]Hence, the length of the rope is 13.89ft.
To know more about Pythagoras theorem here
https://brainly.com/question/343682 #SPJ2
The point (3, -1) is on the line given by which equation below?
A. y = -3x
B. y = x - 4
C. y = x + 4
D. y = 3x
Answer:
Just grabbin points
Step-by-step explanation:
Answer:
B. y = x - 4
Step-by-step explanation:
(x, y) = (3, -1)
y = x - 4
y = 3 - 4
y = -1
#CMIIW3. A class rolled number cubes. Their results are shown in the table. What is the experimental probability of rolling the number 1? Round your answer to the nearest tenth.
17.2%
16.4%
15.7%
17.5%
Answer:
15.7%
Step-by-step explanation:
Experimental probability is the probability of something that is determined by doing an experiment.
To find the probability, divide the number of rolling a one and add all the occurrences of every other result.
So,
42 / (42 + 44 + 45 + 44 + 47 + 46) =
42 / 268 =
0.156716 =
15.6716
Rounded to the nearest tenth, the probability of rolling a one would be 15.7%.
At the aquarium, posters of sharks cost $2 and posters of jellyfish cost $6. Mr. Benson spent $64 to buy 12 posters. How many of each type of poster did Mr. Benson buy?
Answer:
8
Step-by-step explanation:
Step 1: Add the cost of the posters together
Shark: 1 = $2
Jellyfish: 1 = $6
2 + 6 = 8
Step 2: Divide the result by the total amount Mr. Benson spent
64 ÷ 8
[tex]= \frac{64}{8}[/tex]
[tex]= 8[/tex]
Therefore, Mr. Benson bought 8 of each type of poster.
A swimming pool that is 10 feet, 20 feet long, and 4 1/2 feet deep. how much water can this swimming pool hold (to the top of the pool)?
Answer:
900 cubic feet
Step-by-step explanation:
Volume = length x width x height
= 10 x 20 x 4.5
= 900
which set of sides will NOT make a triangle?
12cm, 7cm, 5cm
2cm, 3c, 4cm
11cm, 13cm, 3cm
19cm, 14cm, 7cm
The perimeter of a square is 100. The side length is represented by 2x+3. Solve for x.
Answer:
4×side length=perimeter of the square
4×(2x+3) = 100
2x+3 = 25
2x=25-3=22
x=11
help please and thanks
Answer:
28km
Step-by-step explanation:
Pythogreom therom
Answer: use p h o t o m a t h
Step-by-step explanation:
in a bag, there are 5 red marbles, 2 blue marbles and 3 purple marbles. what is the probability of drawing a purple marble
Answer:
The probability of drawing a purple marble is 3/10
what is the answer to y= 4x + 11
Answer:
x=-11/4
Step-by-step explanation:
4x+11 x=4 hope this helps
Kim has a rope that is meter long, she wants to cut it into 5 places, Each piece must be the same size.
How long will each piece of rope be?
Answer:
1/5 meter per piece
Step-by-step explanation:
Divide this 1-meter-long rope by 5:
1 meter
--------------- = 1/5 meter per piece, or 200 mm
5 pieces
Can 1-9 be solved please ANSWER FAST!!!
Answer:
1) solution
2x+3*5x=34
2x+15x=34
17x=34
x=34/17
x=2
2) solution
2*4y+3y=44
8y+3y =44
11y=44
y=44/11
y=4
3) solution
4y+5=3y-2
4y-3y=-2-5
y= -7
4) solution
2x+3=4x-1
3+1=4x-2x
4=2x
x=4/2
x=2
5) solution
4(y-1)=3y+3
4y-1=3y+3
4y-3y=3+1
y=4
6) solution
2(1/2y +3)-y=6
2/2y+3-y=6
y+3-y=6
2y=6
y=6/2
y=3
7) solution
8x+2(-4x+11)=13
8x-8x+11=13
11=13
8) solution
2x-3x-9=-4
-x=-4+9
-x=5
x= -5
9) solution
3(3y+1)-5y=11
9y+3-5y=11
4y=11-3
y=8/4
y=2
please marks brainliest I had to spend lot of time typing this.
pls help i need this done very soon :