Factor completely x3 + 7x2 + 3x + 21.help meeeee
Answer:
(x+7) (x^2+3)
Step-by-step explanation:
Add and subtract the second term to the expression and factor by grouping. Hope this helps!
Henry rolls a fair dice 42 times. How many times would Henry expect to roll a number greater than 5?
Answer:
7 times
Step-by-step explanation:
There is one number greater than 5 on a dice - that is the number 6.
So probability of throwing a six = 1/6.
So it is 42 * 1/6.
4(10s) – 20 – 50s – 12 + 4s PLEASE HELP AND EXPLAIN
help me please please.
9514 1404 393
Answer:
$6.56
Step-by-step explanation:
The value is found by multiplying:
32% of $20.51 = 0.32 × $20.51 = $6.5632 ≈ $6.56
Help please help desperate due today..
Answer:
54 Students on each bus
Step-by-step explanation:
I got that answer by subtracting 16 to 232 which got me 216 then i divide 4 and got 54!
Hope this Helps! :)
Answer:
54
Step-by-step explanation:
First you do 232-16 which is 216 then all you do is divided 216 by 4 which is 54!
I hope this helps and have a great day!
Some one help ASAP please help I’m stuck
Answer:
SOH CAH TOA
Step-by-step explanation:
/hyp/2=/ opp/ 2 +/Adj/2
x2=(1/21)2 + 1/28)2
What is the slope of the line?
Answer:
I believe m=-5/3
Raul calculated that he would spend $125 on school supplies this year. He actually spent $87.50 on school supplies. What is Raul’s percent of error?
A 42.9%
B 37.5%
C 30%
D 3%
Answer:
C 30%
Step-by-step explanation:
87.50/125= 0.70
1-0.7-0.3
Answer:
42.9%
Step-by-step explanation:
So you would use [ ((V2 - V1) / |V1|) * 100 ]
V1 = 87.5 to V2 = 125
= ((125 - 87.5) / |87.5|) * 100
= (37.5 / 87.5) * 100
= 0.428571 * 100
= 42.8571% change
= 42.8571% increase
Then you round to 42.9!
Hope it helps! :)
Justin set his watch 19 seconds behind, and it falls behind another 1 second every day. How
many days has it been since Justin last set his watch if the watch is 50 seconds behind?
Answer:
31 days
Step-by-step explanation:
Hope this helps!
Brainiest?
Answer:
31 days
Step-by-step explanation:
you have a set number already 19 if every day the watch goes back 1 day 31+19=50
JKLM is a rhombus. Find JK. PLZ HELP!
Answer:
JK=8
Step-by-step explanation:
the sides are equal so set KL equal to LM
b+5=3b-1
b=6=3b
6=2b
b=3
b+5
3+5
8
Using the property of the sides of a rhombus, the missing length is determined as: B. JK = 8.
What is a Rhombus?A rhombus is a quadrilateral.The four sides of a rhombus are congruent, that is, they have equal measure.Thus:
KL = ML
Substitute
b + 5 = 3b - 1
Solve for bb - 3b = -5 - 1
-2b = -6
b = 3
Find JK
JK = KL = b + 5
JK = b + 5
Plug in the value of bJK = 3 + 5
JK = 8
Therefore, using the property of the sides of a rhombus, the missing length is determined as: B. JK = 8.
Learn more about rhombus on:
https://brainly.com/question/3050890
A satellite cable company charges an installation fee of $50 plus an additional $35.95 per month for service.
HELP GIVING BRAINLIEST NUMBER 5!!!!!!
Answer:
1 solution
Step-by-step explanation:
4x + 5 = 6(x+3) - 20 - 2x
4x + 5 = 6x + 18 - 20 - 2x
4x + 5 = 4x -2
X = 3 therefore, there is only one solution
{(1, -2), (-2, 0), (-1, 2), (1, 3)}
determine if the following relations are functions. then state the domain and range.
I'm confused about this question
Answer:
the answer is 3
Step-by-step explanation:
using the function f(x) = -3 x -5, calculate f(-7)
6x+5 = ru what is ru?
Answer: 65
Step-by-step explanation:
Answer:
wut
Step-by-step explanation:
g(-3) if g(x)=2x-4 show your work
Answer:
g(-3) = -10
Step-by-step explanation:
All you have to do is plug -3 in for x!
g(-3) = 2(-3) - 4
g(-3) = -6 - 4
g(-3) = -10
f(x) = -6x-1
f(-1/2) = ?
Answer:
Intersection point of this is (0,-0.5)
Step-by-step explanation:
Hope this helps :)
If , 9/24=3/X then x is
Answer:
this is your answer
I hope it helps you
:-))
Answer:
X=8
Step-by-step explanation:
9/24=3/x
reduce fraction with 3
3/8=3/x
Simplify the equation using cross-multiplication
3x=24
Divide both sides of the equation by 3
x=8
Reflect Rodrigo drew this diagram
related to the diagram in problem 3.
How does Rodrigo's diagram help to
support understanding of the
Pythagorean Theorem?
Marco needs to buy some cat food. At the nearest store, 3 bags of cat food cost $6.75. How much
would Marco spend on 2 bags of cat food?
Answer:
6.75/3=2.25
2.25 per bag
2.25x2=4.5
Step-by-step explanation:
$4.50 for 2 bags
Given m || n, find the value of x.
(Check link)
Answer:
160
Step-by-step explanation:
The depth of a lake is 15.8 m.
Jada accurately measured the depth of the lake to the nearest meter. What measurement did Jada get?
Answer:
16 m
Step-by-step explanation:
Answer:
16 meters
Step-by-step explanation:
what type of triangle, if any, can be formed with sides measuring 8 inches, 8 inches, and 3 inches?
Find the GCF of 22ab 2c 2 and 40a 3c 2.
Answer:
2ac^2
Step-by-step explanation:
Factors:
22ab^2c^2 = 2 * 11 * a * b * b * c * c
40a^3c^2= 2 * 20 * a * a * a * c * c
GCF:
= 2 * a * c * c
= 2ac^2
Answer:
40a
Step-by-step explanation:
Solve the equation.
4b+3=−9
Answer:
b=-3
Step-by-step explanation:
4b+3=−9
-3 -3
4b=-12
4b/4 =-12/4
b=-3
I need help. For khan academy. Explain if you can
Answer: Ok so the number on the y axis is 0,-3 cause it is above -4. And the next point is 1,-5. That is because the first thing you plot is the x axis and then the y axis so that it gives you your number
Match each equation with the correct answer.
19 - 4
24 - 9
Answer:
half of 30
Step-by-step explanation:
19 - 4 = 15
24 - 9 = 15
A cylinder has a volume of 198 cm3, and its base has an area of 22 cm2. What is the height of the cylinder? V= πr²h
Answer:
The height of cylinder is 9 cm
Step-by-step explanation:
Volume of cylinder = 198 cm³
Base Area = 22 cm²
We need to find height of the cylinder
The formula used is: [tex]Volume\:of\:cylinder=\pi r^2h[/tex]
Where [tex]Base\: Area = \pi r^2[/tex]
First we need to find radius r
[tex]Base\: Area = \pi r^2\\22=3.14\: r^2\\r^2=\frac{22}{3.14}\\r^2=7\\Taking\: square\: root\: on\: both\: sides\\\sqrt{r^2}=\sqrt{7}\\r=2.656[/tex]
So, we get radius r = 2.656
Putting values of volume and radius are to find height
[tex]Volume\:of\:cylinder=\pi r^2h\\198=3.14(2.656)^2h\\h=\frac{198}{22}\\h=9[/tex]
So, the height of cylinder is 9 cm
(-4a^2 -5a + 7) + (a^2 + 8a)
Answer:
-3a^2 + 3a +7
Step-by-step explanation:
Hopefully, this is what you're looking for
I just simplified it :)
Answer:
i simplified it
Step-by-step explanation:
-3a^2 + 3a +7