b) Factorise fully.
8x² + 12x
Answer:
76x
Step-by-step explanation:
An equipment rental company charges a $25 fee plus $50 per hour. Identify the information for that you are given in the problem. Select all that apply
A. slope
B. y intercept
C. point
D. 2 rates
E. a total
10 x (250 + 45) PLZ HELP DUE IN 5 MINUTES
Answer:
2950
Step-by-step explanation:
10(250+45)
10(295)
2950
Can i get help plz its not hard
Answer:
This is math right?
Step-by-step explanation:
Modeling with sinusoidal functions
Hiro is riding a carousel that is next to a wall.
His horizontal distance C(t) (in m) away from the wall as a function of time t (in seconds) can be modeled by a
sinusoidal expression of the form a · cos(b. t) + d.
Att = 0, when he starts, he is closest to the wall, a distance of 2 m away. After 77 seconds he reaches his mid-
way point from the wall, which is 7 m away.
Find C(t).
t should be in radians.
C(t)
Answer: c(t)= -5 cos (1/14t)+7
Step-by-step explanation:
Solve: 9 + 11| + |-1|
Answer:
21
Step-by-step explanation:
9+11+|-1|
9+11+1
21
Answer: 21
Step-by-step explanation: the absolute value of any number will be positive so the absolute value of -1 is one. After that all you have to do it’s add 9 and 11 which is 20 + 1 which is 21
Hope this helped
How do you undo x - 5?
Answer:
x+5 or the full expression: x-5+5
Step-by-step explanation:
Answer these two and I'll make as brainest.
Answer:
25x + 5 equals 130, x=5, (2) x= 6 10x=60 degrees
Step-by-step explanation:
Tell me everything you know about Pythagorean Theorem. Some things to include, but not limited to: Why is it that in some examples you have to subtract the square of a leg from the hypotenuse? Can this be used on every triangle? When might someone use this in real life as an adult?
Answer: Check below
Step-by-step explanation:
Okay so the Pythagorean Theorem was made by some old guy and the formula is a^2+b^2=c^2. You ALWAYS have to subtract the leg of the triangle when your finding a leg. You squareroot the square of the two legs if your finding the hypotnuse. The Theorem can be used to find any side of the triangle ONLY IF its a right triangle. An adult might use it in real life like when your an architect trying to find how much material you should use to make something thats in the shape of a right triangle.
Ps. Sorry if there's a bunch of grammar mistakes since this is kinda rushed
need help, can someone help me real quick !
Answer: SAA or AAS
Step-by-step explanation:
You always start at the “void” or where there are the least amount of marks and go either way.
Find the coordinates of the intersection of the diagonals
of parallelogram XYZW with vertices X(2, 2), Y(3, 6), Z(10, 6), and W(9,2). Hint: what do we know about
the diagonals of a parallelogram?
Answer:
We know the basic facts about parallelogram is The basic formula for calculating the area of a parallelogram is the length of one side times the height of the parallelogram to that side.
Step-by-step explanation:
The coordinates of the intersection of the diagonals of parallelogram XYZW is at (6, 4).
Parallelogram
A parallelogram is a quadrilateral in which opposite sides are parallel and equal. The diagonals of a parallelogram bisect each other.
Given parallelogram XYZW with vertices X(2, 2), Y(3, 6), Z(10, 6), and W(9,2).
The equation of diagonal XZ is:
[tex]y-2=\frac{6-2}{10-2} (x-2)\\\\y=0.5x+1[/tex]The equation of diagonal YW is:
[tex]y-6=\frac{2-6}{9-3} (x-3)\\\\y=-\frac{2}{3} x+8[/tex]The point of intersection is at:
0.5x + 1 = (-2/3)x + 8
x = 6. Hence y = 4
The coordinates of the intersection of the diagonals of parallelogram XYZW is at (6, 4).
Find out more on Parallelogram at: https://brainly.com/question/970600
Which expression represents the expression 20 x − 10 20 x - 10 after it has been factored completely? A. 2 ( 10 x − 5 ) 2 ( 10 x - 5 ) B. 2 ( 2 x − 1 ) 2 ( 2 x - 1 ) C. 10 ( 20 x − 10 ) 10 ( 20 x - 10 ) D. 10 ( 2 x − 1 ) 10 ( 2 x - 1 )
Answer:
A. 2 ( 10 x − 5 )
D. 10 ( 2 x − 1 )
Step-by-step explanation:
Given expression:
20x − 10
Find the equivalent expression
Check all that applies
A. 2 ( 10 x − 5 )
= 20x - 10
B. 2 ( 2 x − 1 )
= 4x - 2
C. 10 ( 20 x − 10 )
= 200x - 100
D. 10 ( 2 x − 1 )
20x - 10
The correct options are
A. 2 ( 10 x − 5 )
D. 10 ( 2 x − 1 )
A giraffe is 16 feet tall and casts a
shadow of 24 feet. If Dustin casts a
shadow of feet how tall is he? Draw
a picture to help you!
how many feet does Dustin cast and i can't draw a pic
Answer:
x/93/5 = 2/3
Multiplying both sides with 93/5
x = 2/3 * 93/5
x = 62/5 =12.4 feet tall
Step-by-step explanation:
What is the slope of the line parallel to y=2/5x-1?
I really need help with this fast please
Answer:
The slope will be 2/5.
Step-by-step explanation:
[tex]y = 2/5x -1[/tex] is written in slope-intercept form.
This formula looks like:
[tex]y=mx+b[/tex]
where:
M = Slope x = independent variableb = y-interceptSo:
[tex]2/5[/tex] is our slope[tex]x[/tex] remains our independent variable[tex]-1[/tex] is our y-intercept.1 ). For two lines to be parallel they must have the same slope.
Slope would remain 2/52 ). For two line to be perpendicular they must have slopes that are opposite reciprocals.
. Slope would become -5/2As the question states, we must find the slope of a line parallel to the equation given. This means that the slope will remain 2/5.
Lets check our work!
Choose a random ordered pair. I will choose (5, 6).
Now, using point slope-form we can find out if what was said above is true!
This formula looks like:
[tex]y - y1 = m (x-x1)[/tex]
Let us substitute:
[tex]y - 6 = 2/5(x-5)[/tex]
Distribute:
[tex]y-6=2/5x-2[/tex]
Add 6 to both sides:
[tex]y= 2/5x+4[/tex]
Now using both equations I will plot them on a graph to see if they a parallel.
As you can see from the graph below, these lines are parallel. Where the equation you were given is in blue and the equation I made is in red.
Based on all of the evidence, the slope will be 2/5.
Hope this helped! :)
The t-shirts cost $12 each plus a one-time shipping fee of $10. ... Which equation should be used to find how many shirts the band purchased?
Answer:
12+10=y
Step-by-step explanation:
equationbecause we know that each is $12 then $10 is added on but we dont know the answer so we put (y). they are only asking for an eqution NOT an answer!
BRAINLIEST PLEASE? AND A THANKS!
THANKS
F (×)=(×H)(×-1) is this polynomial function
Answer:
I think so
Step-by-step explanation:
Which property of operations can be used to rewrite the expression without the parentheses?
Answer:
The Commutative Properties of Addition and Multiplication ... in an addition expression can be grouped in different ways without changing the sum. ... Mathematicians often use parentheses to indicate which operation should be done ... Rewrite 7 + 2 + 8.5 – 3.5 in two different ways using the associative property of addition.
Step-by-step explanation:
I learned this and i still know it. I dont have a explanation
is this right or wrong?
Answer: Yes, your correct because the square root of 61 is 7.8, and that's inbetween 7 and 8
I hope this helps, and Happy Holidays! :)
If 4% of a number is 12, find 2% of that number.
Answer:
6
Step-by-step explanation:
4% = 12
1% = 12/4
2%= 2 x (12/4) = 6
Answer:
2% of the number is 6
Step-by-step explanation:
4% of a number is 12
We want to know what 2% percent of it is.
So if we divide the number 12 by 2 we will be able to find the answer.
Note: 4%/2 = 2%(which is the percent we are looking for) Which is why if we also divide 12 by 2 which is 12/2 we will get 2% of the number.
12/2=6
A student bought 3 boxes of pencils and 2 boxes of pens for $6. He then bought 2 boxes of pencils and 4 boxes of pens for $8. Find the cost of each box of pencils and each box of pens.
Answer:
.
Step-by-step explanation:
Each box of pens are valued at $1.50, thus for 2 boxers it would be 1.50 x 2 = $3. Thus, 2 boxes of pens = $3. Each box of pencils cost $1. therefore 3 boxes of pencils valued at $1 each = to $3. Final equation $3 + $3 = $6 for the first purchase. Using the same numbers we valued the 2 boxes of pencils at $1 each = $1 pencil box + $1 pencil box = $2 for 2 boxes. Then 4 pen boxes valued at $1.50 each = to $1.50 x 4 = $6 Final equation $6pen + $2pencil = $8 final
WILL GIVE BRAINLIEST
Which of the following represents a function
Answer:
C
Step-by-step explanation:
The table has 2 inputs that are the same (-1) but have different outputs (7 and 1). The list of coordinates also has 2 points with the same x - axis but different y values. For the graph you could use the vertical line test. If you put the line on -1 on the x-axis is goes through 2 points. The indicates that it is not a function.
Hope this helsp. Pls give brainliest.
A researcher performed an analysis of the elemental composition of several fish species living in the
same body of water. The amount (in parts per million) of iron (Fe), calcium (Ca), potassium (K), sodiumBased on this data, identify which elements are found in similar concentrations across all species of fis
tested. Explain how this data provides support for the hypothesis that all four species of fish descended
from a common ancestor.
Answer:
Step-by-step explanation:
the step by step explanation is that Fe has 55.70 it either goes up or down because of scientifc explanation same with the Ca, K, Na, Mg
find the missing number in the proportion. 2/3 = x/15
Pizzas are $10 each plus a $2 delivery fee. Is the cost , proportional to the number of pizzas ordered?
Answer:
the tax is added for the time of the delivery if your question is that yes
Step-by-step explanation:
-3/7 * 3/8
*= times PLEASE HELP ITS MISSING WORK PLEASE
Answer:
ok so -3x3 is -9 and 8x7 is 56 so i think its -9/56
Step-by-step explanation:
Answer:
-0.16071428571
Step-by-step explanation:
:) (its true)
3 The human body contains approximately 60,000,000,000,000 to 90,000,000,000,000
cells.
Answer:
how you find that out
Step-by-step explanation:
Pedro's check register showed a balance of $550.94. His bank statement listed three items that did not appear in his register: earned interest of $4.36, a service charge of $5.50, anD an ATM withdrawal of $150. Reconcile Pedro's check register.
Answer:
Bob knows the amount of money in his account.
He avoids overdrawing the account.
He keeps track of where his money goes (budget).
He can spot any bank errors.
Step-by-step explanation:
how to write slope intercept equation y=mx+b?
plz help
Answer:
the form y=mx+b means slope m and y-intercept b; similarly, the form y=mx+a means slope m and y-intercept a. The form y=m(x-a) is essentially different from the other two forms, and means slope m and x-intercept (instead of y-intercept) a.
Step-by-step explanation:
hope this helps!
WILL GIVE BRAINLIEST FOR RIGHT ANSWER!!!
Answer:
It is B.
Step-by-step explanation:
this is my best subgect in math trust me and please give me brainlyest
Please help!! I’ll give brainlist..!!
Answer:
the second, fourth, fifth, and sixth
Answer:
2 - (-4)
4 + (-2)
5 - (-5)
6 - (-1)
Step-by-step explanation:
- 1 + (-5) = -1 - 5 = -6
2 - (-4) = 2 + 4 = 6
-3 + 2 = -1
4 + (-2) = 4 - 2 = 2
5 - (-5) = 5 + 5 = 10
6 - (-1) = 6 + 1 = 7