Answer:
True :D .....................
Is multiplication commutative.
Answer:yes
Step-by-step explanation:
Because it is able to be commuted
$5.40+$8.70+6.30=
I got stuck again
Answer: $20.40
Step-by-step explanation:
Just add
Find three consecutive integers whose sum is 105.
You started saving for a car when you were in middle school. You have done some research and discovered that it will cost you about $15,000 for a used car that would fit your needs. You were encouraged to invest some of your savings to help you get to your financial goal faster. So far you have saved $10,000. If you invest this money in a savings account with a 3% interest rate compounded annually, how long will it take to earn enough money to go purchase the car? Use the compound interest formula A = P (1 + i)n, where A is the accumulated amount, P is the principal, i is the interest rate per year, and n is the number of years.
Answer:
=> $2,833.47
Step-by-step explanation:
n = [lnA - lnP] / ln(1 + i)
n = [ln15000 - ln10000] / ln(1 + 0.03)
n = [9.6158 - 9.2103] / 0.0296
n = 13.70
13 years, 8 months and 12 Days
P = A / [(1 + i)n]
P = 15000 / [(1.03)4]
P = 15000 / 1.1255
P = $13,327.31
A = 10000 (1 + 0.04)5
A = $12,166.53
The amount of money you need to save to buy a car at $15,000 would be;
$15,000 - $12,166.53
=> $2,833.47
For the function y=7-3x, what is the ordered pair for x=5? *
O (-8,5)
O (7,3)
(-3,7)
(5.-8)
[tex]y=7-3x[/tex]
Substitute x = 5
[tex]y=7-3(5)\\y=7-15\\y=-8[/tex]
Therefore, when x = 5, y = -8.
We can write the coordinate point as (5,-8)
Thus, the answer is the last choice.
find the length of a rectangular cell phone screen with an aspect ratio of 16:9 whose diagonal measure is 127mm
Answer:
The length is 110.4 mm and the width is 62.1 mm.
Step-by-step explanation:
The ratio of the length to the width of the phone screen is 16:9.
Hence, let us say that the length of the screen is 16x and the width is 9x.
Due to the screen having 90 degree corners, we can apply the Pythagorean theorem to say that:
[tex]\sqrt{(16x)^{2} + (9x)^{2}} = 127 mm[/tex]
[tex]\sqrt{256x^{2} + 81x^{2}} = 127 mm[/tex]
[tex]\sqrt{337x^{2}} = 127 mm[/tex]
[tex]337x^{2} = 127^{2} mm[/tex]
[tex]x^{2} = \frac{16129}{337}[/tex]
[tex]x = 6.9[/tex]
Hence, the length is 110.4 mm and the width is 62.1 mm.
Hope this helped!
Answer:
...
Step-by-step explanation:
Let fx) = x + 11 + 2 and g(x) - 2 x + 11. When does f(x) = g(x)?
Answer:when x= -2/3
That means, when the common product of f(x) & g(x) is x+2/3
Step-by-step explanation:
What is two over four divided by one over two
Answer:
0.25
Step-by-step explanation:
Answer:
0.25
Step-by-step explanation:
if the expression 6 more than the product 8 and a number x than what is the answer?
Answer:
''6 more than the product 8 and a number x than'' will be expressed algebraically as:
6+8nStep-by-step explanation:
Translating the sentence into an algebraic expression
The 'product of' means multiplying two numbers'6 more than' means adding 6.Let 'x' be the number
6 more than that 8 and a number
6+ 8×n
Combining it all together means:
6+8n
Thus,
''6 more than the product 8 and a number x than'' will be expressed algebraically as:
6+8nTo work out 20 - 5(3) you would multiply 5 and 3 first and then add the 20
to get a value of 35. Can you start at 35 and reverse those two steps to get
back to 32 Explain the two steps you would take to do that.
Answer:
You would get 5.
Step-by-step explanation:
According to the order of operations ( GEMDAS or PEMDAS ), in a problem the first step is grouping.
20 - 5(3) = 20 - 15, because 5 * 3 is 15 and parenthesis is a sign of multiplication. Then you would get:
20 - 15 = 5.
Here we would not inverse the subtraction sign, because there is an operation before the grouping
Would reverse operation:
20 - ( 5 + 3 )
Would NOT reverse operation:
20 - 5(2) Operation before the subtraction
Are the two triangles similar? If so, why are they similar?
82.8cm measured to the nearest tenth of a centimetre.
Answer:
82.8 cm measured to the nearest tenth of 80cm.
PLEASE HELP!!!!!!!!!!!!!!! A small coffee cup holds 75% as much as a large coffee cup. If the small holds 36 units, how much does the large coffee cup hold?
Answer:
48 units
Step-by-step explanation:
Let x = the amount the large cup holds
36 = 75% of x
36 = .75x. (The word "of" indicates you will be multiplying)
36 ÷ .75 = x
48 = x
A cookie recipe calls for 1 2/3 cup of sugar. If you plan on changing the recipe to make 2 1/2 times as much. How much sugar will you need?Write your answer as a Mixed number or improper fraction in the simplest form.
Answer:
= 4 1/6 ---------------> final answer
Step-by-step explanation:
1 2/3 cup of sugar
That is : 5/3 cups of sugar for 1 cookie recipe
So for 1 recipe ------------- 5/3 cups of sugar
hence for 2 1/2 recipe ---------------> (5/3) * (5/2)
= 25/6
= 4 1/6 ---------------> final answer
Answer:
Step-by-step explanation:
1 2/3(3×1+2=5) × 2 1/2(2×2+1=5)
=5/3 × 5/2
Using A/B × C/D = A×C/B×D
5×5 / 3×2= 25/6
=4 1/6 in simplest form
As an estimation we are told £3 is €4. Convert €40 to pounds
Answer:
£30
Step-by-step explanation:
The ratio is 3:4. x:40=3:4 multiplied by 10, 30:40.
There are 30 pounds in 40 euros, therefore, €40 = £30.
What is a Ratio?A ratio indicates the number of times one number contains another.
Given that, £3 is €4, therefore,
€4 = £3
€1 = £(3/4)
€40 = £(3/4)×40
€40 = £30
Hence, 40 euros is equal to 30 pounds, €40 = £30.
To learn more about ratios, click here:
https://brainly.com/question/13419413
#SPJ2
a taxi service charges an initial fee of $2.15 then charges $1.68 a mile. write a linear equation to model this situation.
The linear equation to model this situation is [tex]y=1.68x+2.15[/tex]
Linear Equation is defined as the equation having degree 1. Linear equation can be of one variable or two variable and so on...
For Example : x=5 is a linear equation in one variable.
x+y=6 is a linear equation in two variable.
Fixed charge= $2.15
Charge per mile=$1.68
Let the miles travelled by the taxi be "x'
So the total charge for "x" miles= [tex]1.68x[/tex]
Let the total charge = y
Total Charge = Fixed Charge + total Charge for "x" miles
[tex]y=2.15+1.68x[/tex]
Therefore , the linear equation to model the situation is [tex]y=2.15+1.68x[/tex]
Learn more about Linear Equations here https://brainly.com/question/10935396
#SPJ4
Mary said, "Four times my age reduced by thirty is six. How old am I?
Answer:
9
Step-by-step explanation:
I said so
4c < 28
Solve the inequality
Answer:
c < 7
Step-by-step explanation:
given three points that lie on the parabola, find the equation that represents this parabola in standard form (0,6),(2,4),(4,6)
a=0; b=6; c=8
Equation of parabola: y=6x+8.
What is the parabola?In mathematics, a parabola is a planar curve that is mirror-symmetrical and generally U-shaped. It matches a variety of seemingly dissimilar mathematical formulations, all of which identify the same curves.
A point and a line are two ways to describe a parabola a plane curve produced by a point moving so that its distance from a fixed point equals its distance from a fixed line:
Apollonius, who discovered numerous features of conic sections, is credited with the name "parabola." It signifies "application," referring to the "application of regions" notion, which, as Apollonius demonstrated, has a connection with this curve.
A banana's curving shape is quite similar to a parabola. As a result, it is one of the best instances of parabolic objects in common use.
To l;earn more about parabola, visit:
https://brainly.com/question/21685473
#SPJ4
A man is 3 times old as his son the sum of their ages is 48 years old.how old is the son
Answer:
The son is 12 years old.
Step-by-step explanation:
When you do 12 multiplied by 3 you get 36. Then you add the 12 and 36 to get 48. This is how you know it is correct.
What is the component form and magnitude of the vector shown?
LeftAngleBracket negative 2, 7 RightAngleBracket and StartRoot 53 EndRoot
LeftAngleBracket negative 2, 7 RightAngleBracket and 53
LeftAngleBracket negative 7, 2 RightAngleBracket and StartRoot 53 EndRoot
LeftAngleBracket negative 7, 2 RightAngleBracket and 53
Answer:
c
Step-by-step explanation:
edge 2020
The component form and magnitude of the vector is (-7, 2) and √53 option third is correct.
What is a vector?It is defined as the quantity that has magnitude as well as direction also the vector always follows the sum triangle law.
We have a vector shown in the picture.
The coordinate for tail = (6, 2)
The coordinate for arrow = (-1, 4)
Coordinate for vector = (-1-(6), 4-(2)) = (-7, 2)
The magnitude:
[tex]\rm M=\sqrt{(-1-6)^2+(4-2)^2}[/tex]
M = √53
Thus, the component form and magnitude of the vector is (-7, 2) and √53 option third is correct.
Learn more about the vector here:
brainly.com/question/8607618
#SPJ2
how are you today?
don't forget that you are loved!
I'M SOOOOOOOO GOOD
HOW ABOUT YOU
yall its an easy khan academy assignment please help ASAP i needa turn it in by 11:59 pm todayyy so hurry i will give 50 points!!!! and brainliest to whoever is righttt
Answer:
The answer is B.
Step-by-step explanation:
Answer:
B ITS B ! GOOD LUCK!!!! :D
Step-by-step explanation:
A number "a" less than 20.
Answer:
19
Step-by-step explanation:
Q. Is this a function?
Answer:
Yes
Step-by-step explanation:
the x has different numbers each time
Solve for x.
A.
B.
C.
D.
104÷16=
I really need help
Answer: 6.5, hope this helps you
Answer:
6.5
Step-by-step explanation:
Is (-8,7), (0,1), (2,-6), (2,3), (7,9) a function?
What’s the domain and range?
for Spirit Week at a local middle school. School students were encouraged to wear the school colors of burgundy and gold. of the 1,000 students,700 students wore burgundy while 250 students wore gold. what percent of the total number of students wore gold?
Answer: 25%
Step-by-step explanation: do 250/1,000
you get .25. Then convert that into percentage, which is 25%.
Help me on this please
Answer: 4,4
Step-by-step explanation:
because just listen to me ;)