Answer:
1. (x - 7)(x + 3)
Step-by-step explanation:
x^2 - 4x – 21
We need two numbers that have a product of -21 and a sum of -4.
The numbers are -7 and 3 since -7 * 3 = -21, and -7 + 3 = -4
x^2 - 4x – 21 = (x - 7)(x + 3)
Answer: (x - 7)(x + 3)
Answer:
1
Step-by-step explanation:
X²-4x-21
-21×x²=-21x²
the factors of -4x and -21x² are -7x and 3x
x²-7x+3x-21
(x²-7x)+(3x-21)
X(x-7)+3(x-7)
answer:(x-7)(X+3)
The circumference of a circle is 188 meters. What is the approximate radius of the circle?
A 30 meters
B 60 meters
94 meters
D 128 meters
Answer:
94 meters
Step-by-step explanation:
The equation of this problem will be set up as such: [tex]188=2\pi r[/tex].
Answer this question to get marked as barinliest!!!!!
Answer:
b
Step-by-step explanation:
I think it's B... but I could be wrong
please someone help me!!!!!!!!!!
Answer:
50 it think
Step-by-step explanation:
Which set of numbers could be the length of the sides of a triangle?
{6, 9, 15}
{3, 3 ,7}
{6, 9, 12
{1, 2, 3}
Answer:
6, 9, 12
Step-by-step explanation:
sum of two sides must be greater than third side
Can I get help with this problem please?
Answer:
B
Step-by-step explanation:
To find the y- intercept let x = 0
From the table for f(x)
When x = 0 → f(x) = - 4
That is the y- intercept = - 4
Given
g(x) = 3 [tex](2)^{x}[/tex]
let x = 0 , then
g(0) = 3 [tex](2)^{0}[/tex] [ [tex]2^{0}[/tex] = 1 ]
= 3 × 1
= 3
That is the y- intercept = 3
Thus the y- intercept of g(x) is greater → B
The first term of an arithmetic sequence is -140 and the 90th term is 483. What is the value of the 55th term?
Answer: 238
Step-by-step explanation:
The formula to calculate the nth term of an arithmetic progression = a + (n-1)d
Based on the question,
a = -140
90th term = a + 89d = 483
We need to get the value of the common difference
a + 89d = 483
-140 + 89d = 483
89d = 483 + 140
89d = 623
d = 623/89
d = 7
Therefore 55term will be:
= a + (n - 1)d
= a + (55 - 1)d
= a + 54d
= -140 + 54(7)
= -140 + 378
= 238
1) (x - 2)/(x - 3) + (3x - 11)/(x - 4) = (4x + 13)/(x + 1)
Step-by-step explanation:
or,(x-2)(x-4)+(3x-11)(x-3)/(x-3)(x-4)=(4x+13)/(x+1)
or,x^2-4x-2x+8+3x^2-9x-11x+33/x^2-4x-3x+12=(4x+13)/(x+1)
or,4x^2-4x-2x-9x-11x+8+33/x^2-7x+12=(4x+13)/(x+1)
or,4x^2-26x+41/x^2-7x+12=(4x+13)/(x+1)
or, (x+1)(4x^2-26x+41)=(4x+13)(x^2-7x+12)
or,4x^3-26x^2+41x+4x^2-26x+41=4x^3-28x^2+48x+13x^2-91x+156
or,-26x^2+4x^2+28x^2-13x^2+41x-26x-48x+91x=156-41
or,-7x^2+58x=115
or,-7x^2+58x-115=0
or,-(7x^2-58x+115)=0
or,7x^2-58x+115=0
or,7x^2-(35+23)x+115=0
or,7x^2-35x-23x+115=0
or,7x (x-5)-23 (x-5)=0
or, (x-5)(7x-23)=0
Either, Or,
(x-5)=0 (7x-23)=0
or,x=0+5 or,7x=23
:x=5 :x=23/7
Hence,x=5 or 23/7
Evaluate the algebraic expression 4v-3 if v= -5.explain
Answer:
-23
Step-by-step explanation:
Given 4v-3
evaluate when v = -5
So basically we want to find the value of the expression when the variable (v) equals -5
so
* plug in -5 for v*
4(-5)-3
4*-5=-20
-20-3=-23
So we can conclude that when v = -5 the value of the expression is -23
Answer:
4v-3 = -23Explanation:
given the expression: 4v-3
if v = -5
4v-3 (let's subsitute v)
4v-3 = 4×(-5)-3
4v-3 = -20 - 3
4v-3 = -23
Oliver is performing an experiment by spinning a metal weight around on the end of a nylon thread. How far does the metal weight travel if it
completes 10 revolutions on the end of a 0.88 m thread?
Give your answer correct to one decimal place.
Answer:
27.7m
Step-by-step explanation:
Step 1
We find the Circumference of the nylon thread.
The formula = 2πr
The diameter of the thread = 0.88m
Radius = Diameter/2
= 0.88m/2
= 0.44m
Circumference = 2 × π × 0.44m
= 2.7646015352m
Approximately = 2.765m
Step 2
We calculate the distance
Number of revolutions = 10
Therefore, the Distance or how far the metal weight can travel =
Circumference of the wheel × Number of revolutions
= 2.765m × 10
= 27.65m
Approximately to 1 decimal place = 27.7m
do u have to divide or multiply this problem 5300 yd = mi
Answer: divide by 1760 if converting to miles
5300 yd / 1760 = 3.01136 mi
Answer:
You have to divide when converting.
Step-by-step explanation:
5300 yards = about 3 miles
What’s the answer for both ASAP
Answer:
Step-by-step explanation:
1. 1.643
2. -0.03
I need help on one question. Please someone help me. Don’t put a link. I only need help on 22.
Answer:
Supplementary
Step-by-step explanation:
Hello how do I do this on a graph. X>-3
Answer:
use desmos i swear its not a virus, like the other links, its a graphing calculator and u dont need to download anything. hope it helps.
Step-by-step explanation:
I need help please help me!
(06.01)
Which point on the scatter plot is an outlier? (4 points)
A scatter plot is shown. Point I is located at 2 and 1, Point K is located at 2 and 5, Point J is located at 7 and 4, Point H is located at 8 and 1. Additional points are located at 1 and 7, 4 and 5, 4 and 6, 5 and 3, 7 and 2.
Group of answer choices
Point H
Point I
Point J
Point K
Answer:
k
Step-by-step explanation:
don't know
Determine whether the set of ordered pairs is a function.
{(−8, −6), (−6, −4), (−4, −3), (−3, 4)}
function
not a function
State the domain and range. (Enter your answers as comma-separated lists.)
domain
range
Answer:
It is a function
Domain: -8, -6, -4, -3
Range: -6, -4, -3, 4
Step-by-step explanation:
Yes it is a function since there are no multiple x values
Domain are the x-values:
-8, -6, -4, -3
Range are the y-values:
-6, -4, -3, 4
A triangle has one side that is 31 inches long and a second side that is 44 inches long. The least possible length of the third side is_____ in. The greatest possible length of the third side is____in. (Please write the answer in whole numbers only)
BRAINLIEST!!!!!!!
Answer:
The lowest length on the third side is less that 30 and the largest is between 40 and 30
Step-by-step explanation:
Will mark brainliest. Add 2√2+ 5√3 and √2 – 3√3.
Answer:
3√2 + 2√3
Step-by-step explanation:
2√2 + 5√3 + (√2 - 3√3)
(2√2 + √2 ) + (5√3 - 3√3)
(2+1) √2 + (5-3) √3
3√2 + 2√3
The answer is 7.70674230227
72 paper clips to 63 paper clips
Answer:
The percent change for this question is -12.5%
Step-by-step explanation:
I don't really understand what you want me to find so Im going to find percent change and difference. The difference is -9 and percent change is -12.5
1. lacobbe
Jacob has $25 worth of baseball trading cards. His sister, Bonita, has some trading cards and
his sister, Madison, has $7 worth of trading cards. Bonita cards are worth $2 each. Bonita's
and Madison's trading cards together are worth more than Jacob's cards. How many trading
cards, x, could Bonita have?
a) Write the inequality.
b) Solve the inequality using properties of operations.
c) Represent the solution(s) on a number line.
HHHHHHHHHHHHH
15
10
d) Use substitution to determine whether 8, 9, 12, or 15 are solutions to the inequality.
Answer:
2x + 7 > 25 ; 9
Step-by-step explanation:
Total worth of Jacob's cards = $25
Number of Bonita's card = x
Worth of Bonita's card = $2 each
Worth of Madison card = $7
Bonita and Madison cards are worth more than Jacob's card
The inequality
Bonita = 2x ; Madison = 7
2x + 7 > 25
Solving for x
2x > 25 - 7
2x > 18
x > 18 /2
x > 9
Please help me In a geometric series, each term is 21% less than the previous term. What is the value of r for this
geometric series?
0.79
0.21
1
1.21
1.21
Answer:
A
Step-by-step explanation:
You need a value that keeps 79% of the previous value. 79% is 0.79 as a decimal.
You get that by taking 100% of the value and subtracting 21% of the value. Said easier (100% x - 21%x = 79% of x.
r = 0.79
3. Ted popped a baseball straight up with an initial upwards velocity of 48 ft/s. The height the nearest hundredth how long was the ball in the air before hitting the ground? h, in feet, of the ball above the ground is modeled by the function h(t) = -16- + 487 +3. To the nearest hundreds how long was the ball in the air before hitting the ground
Ted popped a baseball straight up with an initial upwards velocity of 48 ft/s. The height the ... - did not match any video results.
Suggestions:
Make sure that all words are spelled correctly.
Try different keywords.
Try more general keywords.
Try fewer keywords.
help pls im taking a test and I need help on this the answer choices are
a. L,M,K
b. K,M,J,L
c. M,J,L,K
d,K,L,J,M
Answer:
b. K,M,J,L
Step-by-step explanation:
From weakest to strongest values:
-0.78, -0.15, 0.35, 0., 67
Weakest to strongest data sets:
K, M, J, L
Eunice wanted to save up for a mountain bike that costs £250. She baby-sits each week for 6 hours for £2.75 an hour, and does a Saturday job that pays £27.50. She saves 3/4 of her weekly earnings. How many weeks will it take her to save enough to buy the bike?
Answer:
Approximately 2 weeks
Step-by-step explanation:
Given data
Cost of bike= £250
Assuming she works for 6 days
1.Babysitting
6*2.75=£16.5 per day
for 6 days
=16.5*6
=£99
2. Saturday Job
=£27.50
Total earnings for the week
=£27.50+£99
=£126.5 weekly
Hence it will take her
=250/126.5
=1.97 week
Approximately 2 weeks to save up the amount
Tonia has $375 in her savings account. She plans to deposit $80 each month for the next 12 months. At the end of the year, she will have an account balance of $1,335.
Answer: This is true
Step-by-step explanation:
what is square root of 5x^4-6x^5+x^6+16x^3-8x^2-8x+4 ?
help me pleasee !
Answer:
y = (x + 1)(x - 0.586) ( x - 3.414)
Step-by-step explanation:
I sure wouldn't recommend doing this by trial and error.
I made a graph of which you can see. Every time this monster touches the x axis and speeds away upward is two equal roots of y. So the square root would be one of each of them.
y = (x + 1)^2 (x - 0.586)^2 (x - 3.414)^2
are the listed roots.
The square root is
y = (x + 1)(x - 0.586) ( x - 3.414)
Do I know that this is right? I don't. But I can tell you this: if you multiply 1^2 * (-0.586)^2 * (- 3.414)^2
you get 4 just as you should. Amazing that we have tools that do that sort of thing.
Enter the amplitude of the function f(x).
F(x)=-sin(3x)-1
|a| is the amplitude so
[tex] | - 1| = 1[/tex]
Answer this please , non-sense/Copied/Plagiarized Incorrect/ Incomplete/ Reported
[tex]\huge{\mathbb{\tt{QUESTION↓}}}[/tex]
1. in how many ways can you arrange five mathematics books,four science books,and three english books, on a shelf such as that books of the same subject are kept together.
[tex]\huge{\mathbb{\tt{SOLUTION↓}}}[/tex]
[tex]\textsf{ Given that: M=5 , S=4 , E=3}[/tex]
[tex]\begin{gathered}\\\end{gathered} [/tex]
[tex]\textsf{ Using the Linear Permutation:} [/tex]
For Mathematics=5[tex]\sf{P=n!}P=n![/tex]
[tex]\sf{P=5!}P=5![/tex]
[tex]\sf{P=5×4×3×2×1}[/tex]
[tex]\sf{P=120}[/tex]
[tex]\begin{gathered}\\\end{gathered}[/tex]
-------------------------------------------------------------------------------- For Science=4P=n!}
P=4!
P=4×3×2×1
P=24
--------------------------------------------------------------------------------For English=3P=n!
P=3!
P=3×2×1
P=6
--------------------------------------------------------------------------------
Multiply all the permutations:
P=120×24×6
P=17,280
--------------------------------------------------------------------------------
[tex]\huge{\mathbb{\tt{ANSWER↓}}}[/tex]
There are 17,280 ways we can arrange in a shelf.
#CarryOnLearning
#LetsEnjoyTheSummer
→XxKim02xXIn ΔXYZ, ∠Y=90° and ∠X=24°. ∠ZWY=81° and XW=7.1. Find the length of WY to the nearest 10th.
Answer:
0.5
Step-by-step explanation:
delta math
Plz help I’ll do a brainliest if it’s right
A rectangular prism is 3.4
centimeters long, 10 centimeters wide, and 13.1 centimeters high.
What is the volume of the rectangular prism?
Answer:
445.4
Step-by-step explanation:
Well to find the volume of a rectangular prism, the formula is l x w x h (length x width x height). The length is 3.4, the width is 10, and the height is 13.1. If you multiply all three of those numbers, you get 445.4.
What is the x-intercept of the graphed line?
−2
0
1
2
Answer:
0
Step-by-step explanation:
the x-intercept is 0 because the line intercepts the x axis at the point (0,0) so the x-intercept is 0.
