Answer:
14
-83
-43
these anwrers when you make it with different ways.
You nees to get more than one answer with this problem I guess.
13-7+8 = 14
13(-7) + 8 = -83
13-7(+8) = -43If this not what you asked please delete my answer, if not kindly give me brainliest if you like.
Answer:
THERE IS NO OTHER ANSWER THAN 14
Step-by-step explanation:
Only 1 answer can be found by doing this problem in any order:
If we do 13-7 first:
(13-7)+8=
6+8=
14
So 1 answer is 14
If we do -7+8 first:
13+(-7+8) =
13+1=
14
So either way you do it you get the same answer. This is why it doesn't matter whether you do addittion or subtraction first before the other.
THERE IS NO OTHER ANSWER THAN 14
Why is ten times ten?
Answer:
100
Step-by-step explanation:
10 · 10 = 100
Of course it all depends on what the symbols you’re using mean. Assuming the the * means “multiplied by,” the next question is “what is the meaning of the symbols 0 and 1,” but (conventionally) in any field, 0 denotes the additive identity and 1 the multiplicative identity. With those assumptions, the next question is “what is meant by the juxtaposition of those symbols?” Again, the commonly used convention is that, for any numeric field with base b, “10” would mean b, and 100 would be interpreted as b*b.
So, for example, if you’re working with a field where b*b = b (e.g., a modular arithmetic), then 10 and 10*10 would both be 1. On the other hand, if your field is, for example, the integers in base 10 (0, 1, …9), then the other answers would apply.
Bottom line: It all depends on what you assume. Without telling us that, it’s harder to answer your question. Note that the other replies to your question all make some (very commonly agreed upon) assumptions, e.g. that you were working in one of the commonly use, base 10, number fields (integers, real numbers, etc.) where ten sticks, each ten inches long, placed in a straight line, would form a line 100 inches long. (The modular field described above would break the sticks into one inch pieces, stack them on top of each other, and get a line one inch long.)
can someone help with this?
Answer:
4) r = 10 yd
d = 20 yd
5) r = 7 in
d = 14 in
6) r = 15 ft
d = 30 ft
7) r = 23 in
d = 46 in
8) r = 16 yd
d = 8 yd
9) r = 21 ft
d = 42 ft
Step-by-step explanation:
Diameter = 2 x radius
*diameter (d)*
*radius (r)*
An equilateral triangle has a perimeter of 90 inches. Find the area of the equilateral triangle, I simplest form.
Answer:
389.7 square inches
Step-by-step explanation:
equilateral triangle = each side has the same lenght
90 inches / 3 = 30 inches each side
----------------------------------------------------------
Pythagoras
30^2 = 15^2 + x^2
900 - 225 = x^2
v 675 = x
25.98 = x
x = height
----------------------------------------------------------
Area = BxH/2
B = 30 inches
H = 25.98
(30 x 25.98) /2 = 389.7 square inches
Answer:
390 in²
Step-by-step explanation:
Length of the sides of the triangle = 90/3 = 30 in
area of a triangle = (base × height)/2
height of an equilateral triangle with sides of length x [tex]=\frac{\sqrt{3} }{2}x[/tex]
Then the height of our triangle [tex]=\frac{\sqrt{3} }{2} \times30=26[/tex]
Conclusion:
area of the triangle = (30 × 26)/2 = 390 in²
PLEASE HELP ILL GIVE THANKS, 5.0, AND BRAINLIEST TO WHOEVER ANSWERS CORRECTLY PLEASE HELP AND ILL GIVE A HIGH POINT COUNT
Sophie bikes at a
speed of s miles per hour. Her friend Rana is slower, her biking
speed 1S only r miles per hour.
Today the girls went for 20 miles trip, each girl was biking at her usual speed. How
long did Sophie wait for Rana after her own arrival to the finish?
Answer:
if Rama road 1 mph Sophie waited (20-4) = 16 hours
Step-by-step explanation:
Sophie road 5 mph for 20 miles
distance = rate of speed times time traveled
d = st
20 =5t
t = 20/5 = 4 hours
Rana road r mph for 20 mile
d=rt
20=rt
t =20/r
Sophie waited 20/r - 4 hours
20/r -4 = (20-4r)/r
if Rana road at 4 mph, Sophie waited (20-4(4))/r = 4/4 = 1 hour
If Rana road at 3 mph, Sophie waited (20-4(3))/3 = 8/3 = 2 hours 40 minutes
if Rama road at 2 mph Sophie waited (20-4(2))/2 = 12/2 = 6 hours
if Rama road 1 mph Sophie waited (20-4) = 16 hours
What is the axis of symmetry for the function f(x)=7−4x+x2?
Answer:
The axis of symmetry is x=2
Step-by-step explanation:
v(x)=x^2-25
————-
2x^2+13x+15
Describe the domain in complete sentences.
Write the domain in inequality notation.
Answer:
-∞ < x < -5 ∪ -5 < x < -3/2 ∪ -3/2 < x < ∞
Step-by-step explanation:
The domain of any polynomial is "all real numbers." The domain of any rational function excludes any values of the variable that result in the denominator being 0. The function is "undefined" there.
__
[tex]v(x)=\dfrac{x^2-25}{2x^2+13x+15}=\dfrac{(x+5)(x-5)}{(x+5)(2x+3)}\qquad x\notin \{-5,-\dfrac{3}{2}\}[/tex]
The values x=-5 and x=-3/2 make the denominator of v(x) become 0, so those values are excluded from the domain of v(x). The function is "undefined" when its denominator is zero.
-∞ < x < -5 ∪ -5 < x < -3/2 ∪ -3/2 < x < ∞
_____
Additional comment
The numerator and denominator factors (x+5) cancel each other, so there is no vertical asymptote at x=-5. Rather, the function has a "hole" there, where it is undefined. The limit as the function approaches x=-5 from either direction is v(x) = 10/7.
4
Which equation does not have a solution?
A. -3d + 7 = -9
B. 8d + 7 = -4(-2d - 4)
C. 54+ 15 = 15
D. 2(d' + 6) = -2d - 12
Answer:
Option BStep-by-step explanation:
A.)
➝ -3d + 7 = -9
➝ -3d = -7 - 9
➝ -3d = -16
➝ d = -16/-3
➝ d = 16/3
Solution is d = 16/3B.)
➝ 8d + 7 = -4(-2d - 4)
➝ 8d + 7 = 8d + 16
➝ 8d - 8d = 16 - 7
➝ 0 = 9
It has no solution.C.)
➝ 5d + 15 = 15
➝ 5d = 15 - 15
➝ 5d = 0
➝ d = 5/0
➝ d = 0
Solution is d = 0D.)
➝ 2(d + 6) = -2d - 12
➝ 2d + 12 = -2d -12
➝ 2d + 2d = -12 -12
➝ 4d = 24
➝ d = 24/4
➝ d = 6
Solution is d = 6Hence,
(Option B) 8d + 7 = -4(-2d - 4) has no solution.Pls write me fast what’s the answer 8(1 - 6p) - 2(6p + 7)
Answer:
-60p -6
Step-by-step explanation:
8(1 - 6p) - 2(6p + 7)
Distribute
8 - 48p -12p -14
Combine like terms
-60p -6
The rectangle on the right is a scaled copy of the rectangle on the left. Identify the scale factor. Express your answer as a whole number or fraction in simplest form.
Answer:
scale factor is 3/2
Step-by-step explanation:
to find scale factor, new image divided by original image.
Make sure you rotate the image on the right so it matches the image on the left. 3 corresponds to 9/2 and 5 corresponds to 15/2.
[tex]\frac{9}{2}[/tex] ÷ [tex]\frac{3}{1} \\[/tex]
[tex]\frac{9}{2}[/tex] × [tex]\frac{1}{3}[/tex]
[tex]\frac{9}{6}[/tex]
reduce
[tex]\frac{3}{2}[/tex]
Tomijia and her nine classmates took a standardized test. Their scores were: 42, 44, 56, 71, 74, 83, 89, 90, 90, 92 If Tomijia received an 89 on the test, which percentile is she in?
The percentile of Tomijia's scores is her score as a percentage
If Tomijia received an 89 on the test, she is in the 70th percentile
How to determine the percentile?
The score of the tests are given as:
42, 44, 56, 71, 74, 83, 89, 90, 90, 92
From the above list of scores, the score 89 is at the 7th position.
So, we have:
Tomijia = 7/10
Express as percentage
Tomijia = 70%
Hence, if Tomijia received an 89 on the test, she is in the 70th percentile
Read more about percentiles at:
https://brainly.com/question/2884595
I need help ASAP! I took a screenshot of the question and linked it.
Answer:
18. $5890
19. Mitsubishi Mirage
Step-by-step explanation:
The depreciated value can be found using an exponential relation. The decay rate here is given as 12.5%. The exponential function will have the form ...
y = a·b^x . . . . . a = initial value, b = decay factor = 1 - decay rate
__
18.The above equation will have a=15,000, representing the initial value of the car. It will have b=(1-0.125) = 0.875, the decay factor for the car's value. In the 7 years between your 18th and 25th birthdays, the car will have declined in value to ...
y = $15000·0.875^7 ≈ $5890.44
When you turn 25, the car will be worth about $5890.
__
19.We found three cars with a price under $15,000:
Nissan VersaChevrolet SparkMitsubishi MirageOf these, the Mirage gets the best mileage and has the most cargo space. (It also has the smallest engine.) The Spark has a continuously-variable transmission, not a 5-speed manual, so will be somewhat easier to drive. Its mileage is almost as good, but its range is about 10% less than that of the Mirage or Versa.
(Your curriculum may offer different choices. We cannot tell.)
Perhaps you got a Mitsubishi Mirage.
Arjun and Jasmine are selling flower bulbs for a school fundraiser. Customers can buy bags of windflower bulbs and bags of daffodil bulbs. Arjun sold 4 bags of windflower bulbs and 14 bags of daffodil bulbs for a total of $252. Jasmine sold 8 bags of windflower bulbs and 6 bags of daffodil bulbs for a total of $152. What is the cost each of one bag of windflower bulbs and one bag of daffodil bulbs?
A.
bag of windflower bulbs: $9, bag of daffodil bulbs: $20
B.
bag of windflower bulbs: $7, bag of daffodil bulbs: $16
C.
bag of windflower bulbs: $9, bag of daffodil bulbs: $18
D.
bag of windflower bulbs: $4, bag of daffodil bulbs: $21
Answer: D
Step-by-step explanation: im pretty sure its d because 21 is the right awnser let me know if im wrong hope it helps
im stuck, i dont know where i went wrong. Will brain list, pls help. Evaluate x³-2x²+3x-7/x-1
Answer: hii
hopefully this helps you!
Step-by-step explanation:
Simplify the expression.
- Matthew <3
There is a bag filled with 3 blue, 4 red and 5 green marbles.
A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting 2 different colours?
Answer:
Using the hypergeometric distribution, it is found that there is a 0.4286 = 42.86% probability of getting 2 of the same colour.
The marbles are chosen without replacement, hence the hypergeometric distribution is used to solve this question.
What is the hypergeometric distribution formula?
The parameters are:
x is the number of successes.
N is the size of the population.
n is the size of the sample.
k is the total number of desired outcomes.
In this problem:
There is a total of 3 + 4 = 7 marbles, hence N = 7.
Of those, 3 are blue, hence k = 3.
2 marbles will be taken, hence n = 2.
Step-by-step explanation:
What is the value of 7 – 18(-2 1/3+ 2/3)
Answer:
The answer is 37.
Step-by-step explanation:
First of all we use Pemdas. Add the parantheses first. So its 7-18(-5/3) then you multiple the -18 to 5/3 Because after Parantheses its Exponents multiplication. So it becomes 30. Then you add 7 to get 37. I hope this is helpful.
A parallelogram has a base of 12 meters and a height of 7 meters. What is the area?
Answer:
Area = 84 sq meters
Step-by-step explanation:
Area of a parallelogram is:
A = b•h
A = 12•7
A = 84 square meters
can some one help, Write the inequality 3x - y > -4 in slope intercept form
Answer:
[tex]y < 3x+4[/tex]
short explanation:
1) the common view of slope-interception form is:
y < slope*x+intercept or y>slope*x+intercept. Then
2) according the form above:
3x-y>-4;
y<3x+4.
You deposit $1500 in an account earning 3.5% interest compounded monthly.
a. a. How much will you have in the account in 20 years?
b. b. How much interest will you earn?
Answer:
Answer:
\sf (x+14)^2+(y+5)^2=149(x+14)2+(y+5)2=149
Step-by-step explanation:
Standard equation of a circle: \sf (x-a)^2+(y-b)^2=r^2(x−a)2+(y−b)2=r2
(where (a, b) is the center and r is the radius of the circle)
Substitute the given center (-14, -5) into the equation:
\sf \implies (x-(-14))^2+(y-(-5))^2=r^2⟹(x−(−14))2+(y−(−5))2=r2
\sf \implies (x+14)^2+(y+5)^2=r^2⟹(x+14)2+(y+5)2=r2
Now substitute the point (-7, 5) into the equation to find r²:
\sf \implies ((-7)+14)^2+(5+5)^2=r^2⟹((−7)+14)2+(5+5)2=r2
\sf \implies (7)^2+(10)^2=r^2⟹(7)2+(10)2=r2
\sf \implies 149=r^2⟹149=r2
Final equation:
\sf (x+14)^2+(y+5)^2=149(x+14)2+(y+5)2=149
The difference between your income and your costs in a given time period is called which ?
1) liability
2) Cash-Flow Balance
3) Guaranteed Minimum
4) Cash cow
Please help thank you
how do i multiply 30 by -20
Multiplication of a positive number and negative number
⇒ is like any other multiplication
30 * -20 = 30 * ((-1) * 20) = 30 * -1 * 20 = (-1) * 600 = -600
Hope that helped!
In a particular city, 21 in 1.5 million people have been struck by lightning. What is the experimental probability of being struck by lightning in this city?
21/(1.5 million) = 0.0014%
In this picture, m∠XOZ = 77° and m∠YOZ = 40°. If m∠XOY = (5x + 16)°, what is the value of x?
A. 20.2
B. 37
C. 4.2
D. 2.1
PLSSSS HELP!!
Step-by-step explanation:
ang xoz = ang yoz + 5x+16
77 = 44 + 5x+16
77 = 5x+60
5x= 17
x= 3.4
PLEASE HELP PLEASE PLEASE HELP PLEASE
Answer:
False
Step-by-step explanation:
basically it's asking you whether or not you can live on earth. you can't live at the other planets because they're either too far or too close to the sun.
help pleaseeee this harddd
Answer:
Step-by-step explanation:
Step-by-step explanation:
#1 1.6
#2 1:2
#3 $160.00
#4 1,800
#5 $360
#6 2
#7 250
I hope I helped you
I'm sorry for late
the eye of a hurricane is a relatively calm circular region in the center of the storm the diameter of the eye is typically about 20 miles. If the eye of a hurricane is 20 miles in diameter, what is the area of the land that is underneath the eye? answer in square miles
Answer:
A= 314.159 m2
Step-by-step explanation:
Simple Give Brainliest Please
How many triangles can be constructed with angles measuring 110° 50° and 10°
Pls explain in detail so I can understand
Answer
0
Step-by-step explanation:
Because 110+50+10= 170 and every triangle has 180º
How do you add 2 1/4 plus 3/4
Answer:
Step-by-step explanation: first change 2 1/4 to a improper fraction
you are going to have 9/4 next add 9/4 plus 3/4 which will be equal to12/4 which is the same as 3
A triangle has a perimeter of 16x + 4. If Side 1 is 3x + 2, Side 2 is 8x + 7, what is the measure of Side 3?
Answer:
5x - 5
Step-by-step explanation:
To find the missing side, add the two sides together and subtract them from the perimeter.
side 1 + side 2
3x + 2 + 8x + 7
combine like terms
11x + 9
Subtract from the perimeter
16x + 4 - (11x + 9)
rewrite as an addition problem, so you need to change the signs inside the parentheses.
16x + 4 + (-11x -9)
Now combine like terms
5x - 5
For the polynomial f(X)=2x^3-9x^2+11x-20
As
X -> -♾️,f(X) -> ♾️
A. True
B. False
Answer:
False
Step-by-step explanation:
I'm assuming its because x isn't negative infinity because the leading coefficient is positive
Find the perimeter of the figure to the nearest hundredth.
perimeter: about
ft