Answer:
30 miles = 48 kilometres
Step-by-step explanation:
30 miles divided by 8 = 6
6 x 8 = 48
= 48 kilometres
Answer:
76.16
Step-by-step explanation:
5 miles = 8 km
==> 1 mile = (8/5) km= 1.6km
47.5 miles = 47.6 * 1.6 km =76.16km
Please mark as Brainliest!!
For f(x) = -5x +9, find f'(15)
Find y, at and tu I need help please help
Answer:
there is no picture... but i will try my best to help you if you post picture in another question
What is the constant of variation, k, for the table?
Please help it's four am and I really hate math
Answer:
A
Step-by-step explanation:
number books = n
2xn / 15
solve the following quadratic equation for all value of c i'm simplest form
5(x-2)^2=20
Answer:
x=-2 and x=0
Step-by-step explanation:
5(x-2)^2 = 20; divide by 5 both sides
(x-2)^2 = 4; take the square root of both sides
(x-2) = ±2, now set it equal to positive 2 and negative 2
x-2 = 2
x=4
AND
x-2 = -2
x=0
Answer:
The values of x is 0 and 4.
Step-by-step explanation:
You have to divide 5 by both sides;
[tex]5 {(x - 2)}^{2} = 20[/tex]
[tex] {(x - 2)}^{2} = 4[/tex]
You have to expand the brackets;
[tex] {x}^{2} - 4x +4 = 4[/tex]
[tex] {x}^{2} - 4 x = 0[/tex]
You have to factorize;
[tex]x(x - 4) = 0[/tex]
Lastly, you have to solve it;
[tex]x = 0[/tex]
[tex]x = 4[/tex]
I need help with graphs
Answer:
Ok
Step-by-step explanation:
I’ll help u
How to simplify 7 - 9x -15 + 12x into an expression
3x - 8
bdjwysksuxvsjahajhx
Answer:
Simplified is 3x - 8
Step-by-step explanation:
First, put the like terms together, so rearrange that equation to 12x - 9x - 15 + 7. Then from there you subtract 9x from 12x which is 2x and add 7 to negative 15, which is -8.
Please help will make brainiest !!
Answer:
CB = 13.75
Step-by-step explanation:
Since we know that A, B, and C are the midpoint of the sides, we know that line CB is proportional to QR (by 2)..
So, 27.5/2 = 13.75
А ____________ is a comparison of two quantities by division.
A. Unit Rate
B. Rate
C. Ratio
Answer:
Rate
Step-by-step explanation:
When you have two quantities and place one over the other, i.e. miles/hour, you get a rate, such as a rate of change .
factorise the following:
[tex]{3x}^{2} + 5x - 12[/tex]
Answer:
(x + 3)(3x - 4)
Step-by-step explanation:
Given
3x² + 5x - 12
Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 3 × - 12 = - 36 and sum = + 5
The factors are + 9 and - 4
Use these factors to split the x- term
3x² + 9x - 4x - 12 ( factor first/second and third/fourth terms )
= 3x(x + 3) - 4(x + 3) ← factor out (x + 3) from each term
= (x + 3)(3x - 4)
Thus
3x² + 5x - 12 = (x + 3)(3x - 4) ← in factored form
When 40% of a number is added to the number, the result is 168.
What is the number?
Answer:
-100.8
Step-by-step explanation:
Answer:
120
Step-by-step explanation:
Let's call the number x. 40% of that number is 4/10x, or 0.4x
So x + 0.4x = 168
1.4x = 168
1.Divide each side by 1.4
x = 120
The number is 120
What type of number is: 5? What type of number is 0?
Answer:
0 is rational
5 rational so u are correct
Step-by-step explanation:
Step-by-step explanation:
0 is Rational
5 is Rational is you are correct
Where is the function decreasing?
A.-3 < x < 1
B.-∞< x < -3 and 1 < x < 4
C. 1 < x < 4
D.-∞< x < 1
Answer:
A. -3 < x < 1
General Formulas and Concepts:
Reading a Cartesian PlaneAnalyzing a GraphStep-by-step explanation:
"When is the function decreasing" is saying when the graph is going down.
Calculus-wise, we are finding when the slope of the tangent line is negative.
From the graph, we see it decreasing from -3 to 1. Everywhere else is increasing.
Therefore, our interval decreasing is from (-3, 1).
help me please and thank you
it’s algebra can u helpppp lolsss
Answer:
6z - 6
Step-by-step explanation:
When you expand you are removing brackets. This means you multiply the outer number by the ones inside thus:
2(3z-3)
2 times 3z is 6z .
2 times 3 is 6.
So the answer is 6z - 6.
HOPE THIS HELPED
What is the value of k?
Answer:
k =5
Step-by-step explanation:
triangle =180
180-115=65
65-10-5=50
50/ (4+6)= 5
Plz help, im struggling >:|
Write using algebra.
Jimmy ran m miles in t minutes. What was his speed?
Answer:
150
Step-by-step explanation:
r150 naka cdi lang HAHAHAHAHAHA
Answer:
Lets say S is speed
S= m/ t
m/t would give us his speed in miles per minute.
Find the slope of the line determined by each pair of points: (-1,3), (-6,-4)
Answer:
[tex]m=\frac{7}{5}[/tex]
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASAlg I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (-1, 3)
Point (-6, -4)
Step 2: Find slope m
Substitute: [tex]m=\frac{-4-3}{-6-(-1)}[/tex]Simplify: [tex]m=\frac{-4-3}{-6+1}[/tex]Subtract/Add: [tex]m=\frac{-7}{-5}[/tex]Simplify: [tex]m=\frac{7}{5}[/tex]What is the quotient of (3x^4 – 4x^2 + 8x – 1) ÷ (x – 2)
Answer:
2 3 0 -4 8
+ 6 12 16
3 6 8 24
A：3x^3+6x^2+8x+24/x-2
Answer:
(3x^4-4x^2+8x-1)÷(x-2)
please help i don't understand this
Answer:
Sorry.........................
PLZ help fast I need this I’ll give brainliest
Use the drop-down menus to complete each statement.
The equations x = 1 + 3t and y =-1 + 6t describe a line with a slope of
The equations x = 5 cost and y = 5 sint describe a
X2
A hyperbola with equation
.
= 1 can be parametrized similar to the circle and ellipse.
62
q?
if x = a sec t is one of the parmetric equations, the other will be y =
Answer:
1. 2
2.circle
3.b tan t
Step-by-step explanation:
The slope of the equations x = 1 + 3t and y = -1 + 6t is 6, the equations x = 5 cos t and y = 5 sin t describe a circle and if x = a sec t is one of the parametric equations, the other will be y =b tan t
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The equation x = 1 + 3t and y = -1 + 6t can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.
In this case, m = 6, which is the slope of the line.
The equations x = 5 cos t and y = 5 sin t describe a circle.
These equations define the parametric form of a circle with a radius of 5 centered at the origin.
if x = a sec t is one of the parametric equations, the other will be y =b tan t
Hence, the slope of the equations x = 1 + 3t and y = -1 + 6t is 6, the equations x = 5 cos t and y = 5 sin t describe a circle and if x = a sec t is one of the parametric equations, the other will be y =b tan t
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ2
y=100-(1.25)
is it exponential growth or decay ?
what’s the initial value ?
what is the rate of growth or rate of decay ?
Answer:
You should probably double check the problem. The equation you have is just 100-1.25
HELP ME ASAP! TYSMMM
Ten family size bags of chips cost $15.00. What is the cost per bag? How much would 11 bags cost?
Answer:
Each bag is $1.50. 11 bags would cost $16.50.
Answer:
Each bag would cost 1.50$.
15.00$ / 10 = 1.5$
1.5 = 1.50
______________________
11 bags:
1.5 x 11 = 16.5
16.5 = 16.50$
11 bags would cost 16.50$
Jamie buys a ring that is priced at $900. What is the sales price of the ring, if Jamie uses the coupon below?
A.$885
B.$15
C.$765
D.$135
Answer:
D= $135
Step-by-step explanation:
We have to use proportions in order to figure this out. We know that 15% is equal to 15/100.
work:
15/100=x/900.
We cross multiply so its 13,500/100. This is not the answer so we divide which equals to $135
HELP MEEEEEEEE PMEASE
In order!!!
Step-by-step explanation:
The value of all the angles in a triangle add up to 180.
So to find x do 180-(66+52)
The angle opposite of x is the same value as x
X+E or X+Z are both equal to 180.
each 6 cup container costs 2.95 . How much did Henry's mom spend on lemonade?
Answer:
Henry's mom spent $17.70 on lemonade.
Step-by-step explanation:
6 x 2.95 = 17.7
Brianna wants to use a pontoon boat on Saturday at the lake. She has exactly
$200 to spend on the boat rental. The rental is $30 an hour plus a $80 deposit.
How many hours can she rent the pontoon boat for? Create and solve an
equation for this situation.
Answer:
Step-by-step explanation:
She has 200
80 deposit - 200= 120 left to spend
80+30h=200
If she has 120 left to spend at 30 hr, she could have the boat for 4 hrs
80+30h=200 subtract 80 from both sides
30h=120 divide by the 30
h=4
find the circumcenter
Answer: (0, -2)
Step-by-step explanation:
David,Jenny and Dan went to the arcade on Wednesday. David spent $3.25 Jenny spent $2.25 more than Dan,who spent $1.75 less than David how much did the spend in all
Answer: I believe it is 3.75-
Step-by-step explanation:
David: 3.25
Jenny: 2.25 more than Dan
Dan: 1.75 less than David
3.25
- 1.75
_______
1.50
Dan spent 1.50
1.50
+ 2.25
3.25
_______
$7.00
You bought 15 apples and 2 bags of Carmel for $16.00. The bags of caramel costs $5.35. How much does each apple cost? Write an equation.
Answer:
5.35*2+x=16 and the answer is $.35
Step-by-step explanation:
5.35*2+x=16
10.70+x=16
-10.70 -10.70
x=5.30
5.30/15= about .35
Answer
$12.65/15
Step-by-step explanation:
$16.00-$5.35=$12.65
This means that $12.65/15 is the cost of each apple.