Answer:
x = -2 is a function
Step-by-step explanation:
To get which is a zero, we have to look at one value of x which when substituted into the polynomial will give -1
we have this as:
Let us try the value x = -2
-2^5 + 2(-2)^4 - 2 + 2
= -32 + 32 - 2 + 2 = 0
This means that the term x = -2 is a root of the equation
can you help me please
tan = opp/adj
tan 20 = opp/10
x = 10(tan 20)
x = 3.63....
x = 3.6 cm
HELP 10 POINTS ===== NEED HELP NOW
Answer this real-world question
Xavier had $100 in his lunch account. He spends $6 for lunch each day. Zack has $160 in his lunch account. He spends $10 each day. After how many days will the boys have the same amount of money in their accounts? How much money will they each have on that day?
Answer:
After 15 days they'll both have $10
Explanation:
100 (Xavier's total)- 6x (6 dollars every day) = 160 (Zach's total amount) -10x (10 dollars every day)
[tex]100-6x=160-10x\\[/tex]
+10x on both sides
[tex]100+4x=160[/tex]
-100 on both sides
[tex]4x=60[/tex]
/4 on both sides
[tex]x=15[/tex]
Parker drove a total distance of 4 and 1 over 2 miles during the months of June and July. If Parker only drove 1 over 8 of a mile every day, which expression shows the number of days he went driving? 4 and 1 over 2 ⋅
Answer:
36 days
Step-by-step explanation:
Total distance driven = 4 1/2 miles = 9/2 miles
Months of June and July ;
Miles driven per day = 1/8
Number of days Parker went driving :
Total miles driven / miles driven per day
9/2 miles ÷ 1/8 miles
9 /2 * 8 /1
(9 * 8) / (2 * 1)
72 / 2
= 36 days
Hence, Parker drove for 36 days
1. Malik has $30,000 in a savings account that earns 8% annually.
The interest is not compounded. How much total money will he
have in 2 years after collecting the interest?
a. How much simple interest did Malik receive?
$
b. How much total money does Malik have after the 2 years?
$
Step-by-step explanation:
I= prt
I= 30000×8%×2
I= 4800
total = 30000+4800
=34800
Simplify. 28x^2/7x^6
Answer:
4x^8
Step-by-step explanation:
hope this helps
I have a graphing problem and I need help to find the range and domain and what shows in the pic.. please
A painter is placing a ladder to reach the third story window, which is 14 feet above the ground and makes an angle with the ground at 70°
How far out from the base of the building does the ladder need to be positioned? Round your answer to the nearest tenth.
Answer:
4.8
Step-by-step explanation:
We are given the hypotunese or the slanted side which is the ladder length which is 14.
We are given an angle at the bottom which is 70 degrees.
We are asked to find the horizontal side which is adjacent to the angle at the bottom.
Since we have a hypotunese and a side adjacent to the angle, we are going to use the function cosine.
we use this formula
[tex] \cos(theta) = \frac{adj}{hypo} [/tex]
[tex] \cos(70) = \frac{x}{14} [/tex]
x=4.8
could you explain to me how to do this ? I do not understand at all
Answer:
I believe this is how you do it
Step-by-step explanation:
csc∅tan∅
(1/sin∅)(sin∅/cos∅)
(sin∅)/(sin∅cos∅)
1/(cos∅)
sec∅
csc²∅tan²∅sin∅
1/(sin²∅) * tan²∅ * sin∅
tan²∅/sin²∅ * sin∅
tan²∅/sin∅
I need the answer to this question
9514 1404 393
Answer:
g(x) = (5x +26)/(x+5)
Step-by-step explanation:
To translate the function right h units and up k units, the transformation is ...
f(x -h) +k
You want h=-4 (4 units left) and k=-1 (1 unit down). So, the translated function is ...
[tex]f(x+4)-1=\dfrac{6(x+4)+7}{(x+4)+1}-1\\\\=\dfrac{6x+31}{x+5}-1=\dfrac{6x+31-(x+5)}{x+5}\\\\=\dfrac{5x+26}{x+5}[/tex]
The translated function is ...
g(x) = (5x +26)/(x+5)
__
The original function is in red with asymptotes shown in orange. The translated function is in purple with the asymptotes shown in blue. You can see that the function has been moved 4 left and 1 down.
NEED HELP ASAP PLEASE AND THANK YOU:
Sherry draws a triangle. The length of side AC is 12 inches. The length of side AB¯ is 9 inches. She wants to draw a line XY that is parallel to BC. If she draws point X 3 inches from B, how far from point A does she need to draw point Y so that XY∥BC?
A. Point Y should be 10 inches from point A.
B. Point Y should be 4 inches from point A.
C. Point Y should be 4.5 inches from point A.
D. Point Y should be 8 inches from point A.
Answer:
D. Point Y should be 8 inches from point A
Step-by-step explanation:
help it's my last question!! (slopes) (brainliest)
Answer:
x- intercept : How many sandwichs he bought
y-intercept : How many drinks he bought
answer please i really need help if you get it right you get brainlyest
33.52 is 419% of what?
Answer:
140.4488
Step-by-step explanation:
Answer:419% of 33.52 = 140.4488
Step-by-step explanation: If you multiply .419 by 33.52 you get 140.4488
Find the values of x and y in the diagram below
Answer:
x= 15
y= 21
Step-by-step explanation:
81+6x-11+x+5= 180
7 x + 75= 180
7x= 105
x=15
4y-18+y+14+6×15-11=180
5 y + 75= 180
5y= 105
y= 21
Can someone help me with these 4 questions please :) .
I’ll mark you as a brainliest and give points :) .
1.
60² + 30² = 4500²
Opposite corner = 67.08 ft.
//
2.
6² + 8² = 100²
The wire must be 10 ft.
//
3.
7² + 14² = 245²
The rope is 15.65 ft.
//
4.
180² + 300² = 122400²
He ran 349.85 ft.
//
I'm not too sure about question 3.
What's the equation of a line that passes through points (–1, –5) and (1, 3)?
1. y = -2x
2. y= 4x-1
3. y= -x +4
4. y= 1/4 x -2
20 POINTS FOR ANSWER!!!
Kevin wants buy a subwoofer for his truck. The one he wants cost $370.00. Kevin earns $14.00 for 5 problems, how many problems would he have to write to earn enough money for the subwoofer?
Chloe went to Dairy Swirl to get two scoops of ice cream. The two scoops cost $3.39. She asked the server to add hot fudge and m & m’s to her ice cream. If her sundae cost $4.89 after the two toppings were added, how much was each topping
Three to the fourth means multiply 3 together 4 times, so expanded form is 3 x 3 x 3 x 3.
Answer:
correct
Step-by-step explanation:
Which inequality is true if n = 81?
F 3n < 84
G n − 29 < 53
H 2n < 162
J n + 5 < 76
Answer:
G n - 29 < 53
Step-by-step explanation:
Replace n with 81 so it becomes
81 - 29 < 53
If you solve, 81 - 29 would be 52
Then you have
52 < 53
This is true since 53 is greater than 52
Can someone help me with this??
9514 1404 393
Answer:
u, AB6.4arctangent51°MN has the opposite direction of NMa ray has infinite length; a vector has finite lengthStep-by-step explanation:
1. The problem preamble gives you the two ways to name the vector. You can use either its name, or the two end points. (The starting point is named first, as it is with a ray.)
The vector shown can be referred to by the names ...
u or AB
__
2. The right triangle has legs 4 and 5, so the length is ...
length = √(4² +5²) = √41
length ≈ 6.4
__
3. Typically, you're given the leg lengths. The ratio of these is the tangent of the angle. The angle can be found using the inverse tangent function.
__
4. The tangent of the angle is the slope of the vector:
tan(A) = 5/4
A = arctan(5/4) ≈ 51°
__
5. The first letter named is the starting point of the vector. Vector MN starts at point M and ends at point N. Vector NM starts at N and ends at M. The directions of the two vectors are opposites.
__
6. A ray is like a vector of infinite length. The name of a ray includes a point on the ray. The name of a vector includes both end points. It is of finite length.
_____
Additional comment
A lot of math is invented to describe how things work in the real world. A vector is often used to represent velocity or force and other things that can be described by a magnitude and direction in the real world. A ray is more often used in problems in geometry, where that abstract concept serves a useful purpose.
PLEASE HELP I NEED THIS ASAP
which relation is not a function?
Answer:
im not completley sure but i think its B
Step-by-step explanation:
John has 44 quarters.
Jan has 100 dimes. Who
has more money?
John has more.
John has $11 while Jan has $10
Expression that is equivalent to (b^10) ( b^2)in the form of b^m
Answer:
b^12
Step-by-step explanation:
Multiply b^10 by b^2 by adding the exponents.
b^12
Really don’t understand this one
Answer:
(3,8)
Step-by-step explanation:
First, you need to graph a triangle using the points given.
Then reflect across y = x
R is (3,0) which when reflected across y = x is (0,3)
S is (3,3) which when reflected across y = x is (3,3)
R is (4,0) which when reflected across y = x is (0,4)
If Gavin has 6 9/20th of time left to play videos, what is that mixed number written in minutes and seconds?
Answer:
[tex]387\ \text{minutes}[/tex]
Step-by-step explanation:
The time Gavin has is [tex]6\dfrac{9}{20}\ \text{hours}[/tex]
[tex]6\dfrac{9}{20}=\dfrac{20\times 6+9}{20}[/tex]
[tex]=\dfrac{129}{20}\ \text{hours}[/tex]
[tex]=6.45\ \text{hours}[/tex]
[tex]=6\times 60+0.45\times 60=360+27[/tex]
[tex]=387\ \text{minutes}[/tex]
The number of minutes is [tex]387\ \text{minutes}[/tex].
Tasha is rolling 2 dice. Use a probability model to determine the theoretical probability that she will roll an even number on the first die and a multiple of 3 on the second die?
Answer:
4/12 probability
Step-by-step explanation:
there is 4/12 chance she will roll this
what is the answer of this question?
9514 1404 393
Answer:
970
Step-by-step explanation:
It turns out that the radical terms cancel, so the result is an integer. You can find the integer value using your calculator. It is ...
(5 +2√6)³ +1/(5 +2√6)³ = 970
_____
The cube of 'a' is ...
(5+2√6)³ = 5³ +3·5²·2√6 +3·5·(2√6)² +(2√6)³
= 125 +3·50√6 +3·120 +48√6
a³ = 485 +198√6
The reciprocal of this is ...
b³ = 1/a³ = 1/(485 +198√6) = (485 -198√6)/(485² -6·198²) = (485 -198√6)/1
b³ = 485 -198√6
Then the sum is ...
a³ +b³ = (485 +198√6) +(485 -198√6) = 970
BRAINLIEST Please help i'd appreciate it thanks, Have a nice day :)