Answer:
x=−1 or x=1 or x=−7
Step-by-step explanation:
x3+7x2−x−7=0
Step 1: Factor left side of equation.
(x+1)(x−1)(x+7)=0
Step 2: Set factors equal to 0.
x+1=0 or x−1=0 or x+7=0
x=−1 or x=1 or x=−7
Answer:
x=-7,-1,1
Step-by-step explanation:
Pls help me!!!
2.5 Ib= oz
Answer:
40 ounces
Step-by-step explanation:
1 pound = 16 ounces
Answer:
The answer is...
Step-by-step explanation:
40 oz is how many oz are in 2.5 lb
Hope this helped
:)
If a/b=b/c,then what is b²?
Given:
The equation is
[tex]\dfrac{a}{b}=\dfrac{b}{c}[/tex]
To find:
The value of [tex]b^2[/tex].
Solution:
We have,
[tex]\dfrac{a}{b}=\dfrac{b}{c}[/tex]
On cross multiplication, we get
[tex]a\times c=b\times b[/tex]
[tex]ac=b^2[/tex]
[tex]b^2=ac[/tex]
Therefore, the value of [tex]b^2[/tex] is [tex]ac[/tex].
what is the result when 3x^3+13x^2+11x^2+1 is divided by x+ 1
and can you show me how to do it please
Answer:
58x
Step-by-step explanation:
can i get brainliest
On a particular day 4% of the students were absent. If there are 1750 students at the school then how many were not absent that day?
a) 70
b) 1050
c) 1650
d) 1680
*pls help will mark brainliest!!!*
Answer:
A) 70
Hope this helps :)
A Mars rover descended from the rim of a crater at a constant rate. After 2 days, the rover's elevation was 106 meters. After 6 days, its elevation was 48 meters. What elevation did the rover start at? ____meters Complete the equation that describes the relationship between the rover's elevation in meters, E, and the elapsed time in days, t. Write your answer using whole numbers or decimals rounded to the nearest tenth. E= ___ t+____
Answer:
135
E = - 14.5t + 135
Step-by-step explanation:
Given that, descent rate is constant ;
Elevation after 2 days = 106 m
Elevation after 6 days = 48 m
Let
Rate of elevation per day= x
Initial elevation = a
Hence,
a - 2x = 106 - - - (1)
a - 6x = 48 ___(2)
-2x + 6x = 106 - 48
4x = 58
x = 58/4
x = 14.5 meters per day
Hence, initial elevation :
a - 2(14.5) = 106
a - 29 = 106
a = 106 + 29
a = 135
Relationship between Rover's elevation, E and elapsed time, t
E = - 14.5t + 135
-14.5 = rate per day
The Harvey family stayed at a hotel for n nights. The cost was $80 per night plus a one-time fee of $20 because they brought their dog. Which expression represent the total cost of their hotel stay.
80n + 20n
80n + 20
80 + 20n
80 + 20 + n
Answer:
80n + 20
Step-by-step explanation:
20 stays the same because it's a one time fee. Then, for every night the Harvey family stays, it costs them eighty dollars. So, it's 80n + 20
Answer: 80n+20
Step-by-step explanation:
80 is the cost of nights you stayed but you don’t know the number of nights they dated so you place n next to 80 and they payed an additional 20 fee so you add that to 80n
A linear equation is shown on the graph. Which equation best represents the
relationship between x and y?
SOMEONE PLEASE HELP ASAP
Answer:
y=2x+1
Step-by-step explanation:
Write each number in scientific notation. 1. 14,700
2. 0.00083
3. 760,000,000
4. 0.038
5. 0.38
6. 3.8
7. 3,800,000,000,000
8. 0.0000000009
What’s the inverse of this function?
Answer:
Step-by-step explanation:
First replace f(x) with y
[tex]y=-2x+2[/tex]
Then switch the variables
[tex]x=-2y+2[/tex]
Solve for the new y value
[tex]x-2=-2y\\[/tex]
[tex]-\frac{x-2}{2} =y[/tex]
Please help for a grade!?
Answer:
8.9
Step-by-step explanation:
Which ordered pairs are solutions to the equation 4x+2y=4?
Select the correct answer below:
(2,−6)
(1,5)
(−5,5)
(5,3)
none of the above
a motorcyclist sets out on a road trip traveling at a constant rate of 45 mph. one half hour after she leaves, her friend discovers that the motorcyclist forgot her duffel bag driving at a rate of 60 mph the friend sets out in the car to catch up with her
Answer:
1. 45
2. 60
Step-by-step explanation:
i did it and got it right
Answer:
the answer is 45 and 60
Step-by-step explanation:
The difference of a number c and 17 is more than 33.
Answer:
c-17=x>33
c=51
Step-by-step explanation:
The value of number c should be greater than 50.
It is given that difference of a number c and 17 is more than 33.
We have to find out the value of number c.
What do you mean by algebraic expressions ?
The algebraic expressions are those which are made up of variables, constants and algebraic operations i.e., addition, subtraction, etc.
As per the question ;
The difference of c and 17 is more than 33.
i.e.,
difference of c and 17 meant ; 17 should be subtracted from c and this is greater than 33.
i.e.,
c - 17 > 33
c > 33 + 17
c > 50
Thus , the value of number c should be greater than 50.
To learn more about algebraic expressions click here ;
https://brainly.ph/question/20786412
#SPJ2
ASAP PLSSS!!
Find the slope of the line shown below :
Answer:
the slope is 3
Step-by-step explanation:
Please help! I don't wanna fail!
Answer:
32.55
Step-by-step explanation:
Solve 9 ax + 10 ax = 11ax + 32 for x. Assume at 0.
Can someone help
God loves you and he cares about you so repent becuase he is coming soon
Answer:
Yes god is really good
Step-by-step explanation:
True or False: Similar and congruent mean the same thing.
Answer:
true
Step-by-step explanation:
Answer: False
Step-by-step explanation: Similar means that only the angles are the same, but the sides are not. Congruent means the angles and sides are the same.
please help to solve this
Answer:
I can do the top 2
1. a = -11
2. z = 9/2 (or nine over two in word form)
Step-by-step explanation:
Calculate 48 x 3/8 choose the numbers to complete the equation
Answer:
1. Choose: 3
2. Choose: 144
3. Choose: 18
Step-by-step explanation:
The first thing you do is multiply 48 * 3/8= 18. Then multiply 48 * 1/8= 6. Then divide both answers to get 3, so 48 * 1/8 * 3.
Then to find the second Choose option, you know that 48 * 1/8 * 3= 18; so 18 * 8= 144(to check your answer, divide 144/8 = 18).
Finally, to find the third Choose option, you divide the fraction 144/8 = 18.
Help Plz
Will mark brainliest
Answer: 20.8ft
Step-by-step explanation:
Answer:
26/8 = 3.25
10 x 3.25 = 32.5
The answer is 32.5 ft
The ratio of red to blue marbles in a bag is 3:2. If there are 18 red marbles in the bag, how many
blue marbles are in the bag?
A 27
B 24
C36
D 12
Solve sinx=0.8 in the interval 0≤x≤360∘ Principal value: x=53.1∘ What is the other solution in the interval?
9514 1404 393
Answer:
126.9°
Step-by-step explanation:
The sine of an angle is the same as the sine of its supplement. The other solution in the interval is ...
180° -53.1° = 126.9°
HELP ME PLZ ITS DUE AT 11:59 AND I HAVE MORE
Answer:
Step-by-step explanation:
1: no
2 yes
3 no
4 yes
5 no
6 no
7 always
8 always
9 never
10 always
11 always
12 never
13 108
14 80
15 70
16 123
17 38
18 167
19 10
20 154
Which number produces an irrational number when added to 0.4?
B. 0.444...
C.2/7
Answer:
B.
Step-by-step explanation:
The ocean's surface is at 0. Which is farthest from the ocean’s surface?
A.
a fish swimming at -22 feet
B.
a kite flying at 48 feet
C.
a shipwreck at -52 feet
D.
a balloon at 19 feet
Answer:
C. a shipwreck at -52 feet
Step-by-step explanation:
It is asking which is farthest from the ocean's surface, so we must use absolute value.
[tex] | - 22| = 22 \\ |48 | = 48 \\ | - 52| = 52\\ |19| = 19[/tex]
52 is greater than the others. therefore the farthest away.
How do I divide -x^3 + 2x^2 + 5x -4 by x+2 using synthetic division?
Answer:
-x²+4x-3+2/(x+2)
or
-x²+4x-3 remainder 2
Step-by-step explanation:
Richard had 5625 marbles he decides to put them equally into nine jars how many marbles will there be in five jars
125 i believe
Step-by-step explanation:
Answer:
5625 divided by 5 is your answer. 1125 marbles in each jar.
During a film festival, the first film ticket is priced at $16, and each additional ticket is $11. If Rico spends $71, then how many tickets did he purchase?
Answer:
5
Step-by-step explanation:
16 + 11x = 71
16 + -16 + 11x = 71 + -16
16 + -16 = 0
0 + 11x = 71 + -16
11x = 71 + -16
11x = 55
x = 5
At my school their are 12 more boys than twice the
number of girls. The total student population is 312
students. How many students are boys and how many
students are girls?
Answer:
12 boys and 300 girls
Step-by-step explanation:
There are twelve more boys than girls