Answer:
The rate of travel is 105.6 feet per second, so 211.2 feet could be travelled in 2 seconds.
Step-by-step explanation:
If you take 5280 times 72 it equals 380160 which is the total amount of feet travelled in an hour so you divide it by 60 giving you 6336 which is the total feet travelled in 1 minute and you divide it 1 more time to get 105.6 which is the total feet travelled in 1 second. Hope this helps!
i need help on number 6 and 7 !!! please help!!!! it would be much appreciated
Answer:
6.) No, you do not agree with Ted.
7.) x = 34 degrees
Step-by-step explanation:
6.) For a triangle to be valid, it must meet these requirements:
a+b>c
a+c>b
b+c>a
If it fails a single one, then it is invalid.
For example: 6+11 is not greater than 4. Therefor, Ted is incorrect
7.) Though you see a square, or rectangle (whatever you want to call it), you can break it up into 2 triangle, only 1 of which you need to solve for.
We have these clues:
angle 1 = x
angle 2 = 56 degrees
angle 3 is a right angle
Any triangle must have its angles sum to 180 degrees
We also know that right angles are equal to 90 degrees.
Our updated clues:
angle 1 = x
angle 2 = 56 degrees
angle 3 = 90 degrees
angles 1+2+3 must equal 180
So we can make this equation:
x+56+90=180
Add like terms and solve for x:
x = 34
The domen range of the function y = √(x² - 4) is _____.
Please explain with step i need explanation.
[tex] {\large\underline{\sf{Solution-}}}[/tex]
Given function is
[tex]\rm \longmapsto\:y = \sqrt{ {x}^{2} - 4} [/tex]
We know
Domain of a function is defined as set of those real values of x for which function is well defined.
So, y is defined when
[tex]\rm \longmapsto\: {x}^{2} - 4 \geqslant 0[/tex]
[tex]\rm \longmapsto\: {x}^{2} - {2}^{2} \geqslant 0[/tex]
[tex]\rm \longmapsto\: (x - 2)(x + 2) \geqslant 0[/tex]
[tex]\rm\implies \:x \leqslant - 2 \: \: or \: \: x \geqslant 2[/tex]
[tex]\rm\implies \:x \: \in \: ( - \infty , \: - 2] \: \cup \: [2, \: \infty )[/tex]
Now, To find the range of function
We know,
Range of a function is defined as set of those real values which is obtained by assigning the values to x.
So,
[tex]\rm \longmapsto\:y = \sqrt{ {x}^{2} - 4} [/tex]
On squaring both sides, we get
[tex]\rm \longmapsto\: {y}^{2} = {x}^{2} - 4[/tex]
[tex]\rm \longmapsto\: {y}^{2} + 4= {x}^{2}[/tex]
[tex]\rm \longmapsto\:x = \sqrt{ {y}^{2} + 4 } [/tex]
Now, x is defined when
[tex]\rm \longmapsto\: {y}^{2} + 4 \geqslant 0 \: which \: is \: always \: true \: \forall \: y \in \: real \: number[/tex]
But,
[tex]\rm \longmapsto\:y \geqslant 0[/tex]
Hence,
[tex]\rm\implies \:Range \: of \: function \: = [0, \: \infty )[/tex]
So, we have
[tex]\rm\implies \:Domain \: of \: function : x \: \in \: ( - \infty , \: - 2] \: \cup \: [2, \: \infty )[/tex]
and
[tex]\rm\implies \:Range \: of \: function \: = [0, \: \infty )[/tex]
Christopher buys 3 pizzas for £13.56. If all of the pizzas are the same price, how much does one pizza cost? Give your answer in pounds (£).
Answer:
£4.52
Step-by-step explanation:
£13.56/3
Please do 17-20! No work needed, please do fast this is due soon! Thank you!!
*What you should know*
Point slope form,
y-y1=m(x-x1)
Parallel lines have the same slope.
1. Points (4,2)
y=2
x=4
m=-3/4
substitute this information into the point-slope form formula,
》y-2=-3/4(x-4)
2.
y=-3
x=-3
m=7/3
》y-(-3)=7/3(x-(-3))
3.(-4,0)
y=0
x=4
m=3/4
》y-0=3/4(x-4)
4. (-1,4)
y=4
x=-1
m=-5
》y-4=-5(x-(-1))
brianlist me?
I really need help on this
Answer:
OK so I don't know the answer but there is something called calculator soup and it has a million kinds of calculators lemme give u the link
Step-by-step explanation:
calculatorsoup.com
Several years ago, Winston invested in some gold. Gold is currently valued at $546 per ounce, which is 30% more than Winston originally paid for it. What was the purchase price of the gold?
Answer:
420
Step-by-step explanation:
130/100x = 546
x=54600/130
x=5460/13
x=420
yumiko solved |x|>5 by solving x>-5 and x<5. explain the error yumiko made
Answer:
switched signs around
Step-by-step explanation:
I believe that s/he switched the signs around so
|x|>5 is solved by x<-5 and x>5
but I'm not quite sure, sorry
THE DIMENSIONS OF A CUBED ARE 4X C.M,6X C.M AND 10X C.M
A.FIND THE THE TOTAL SURFACE AREA
B.FIND THE VOLUME
Answer:
A. 248 square CM
B. 240 cubic CM
I NEED HELP ASAP WILL GIVE BRAINLIEST
Step-by-step explanation:
length of missing side = sqrt(5^2 + 12^2) = sqrt(169) = 13
distance = sqrt(50^2 +25^2) =sqrt(3125)= 55.90metres
HELP PLEASE HELP HELP HELP HELP
Answer:
always first sum
Step-by-step explanation:
for example: 1+2/1-2=3
2+2/2-1=4
Titik P(10,3) dicerminkan terhadap sumbu x dan dilanjutkam terhadap pencerminan pada garis y = x menghasilkan bayangan titik P” yaitu
A. (10,-3)
B. (-3,10)
C. (3,-10)
D. (-10,3)
Answer:
B
Step-by-step explanation:
untuk p'
gerak kebawah dr garisan x sebanyak 3 kotak
p'= (-3,10)
untuk p''
disebabkan y=x
terbalikkan nilai p'
p''=(10,-3)
A 144-inch board is cut into two pieces. One piece is five times the length of the other. Find the length of the shorter piece.
The shorter piece is inches long.
Answer:
shorter piece is 28.8 inches
Step-by-step explanation:
Answer28.8
Step-by-step explanation:
28.8 x 5 = 144
can anyone help me with this?
Answer:
Below.
Step-by-step explanation:
7) c^2 = a^2 + b^2
15^2 = 11^2 + b^2
b^2 = 225 - 121 = 104
b = √104
= √4√26
= 2√26.m
8). 4^2 = a^2 + (√6)^2
a^2 = 16 - 6
a^2 = 10
a = √10.
There are 47 maple trees currently in the park. Park workers will plant more maple trees today
When the workers are finished there will be 54 maple trees in the park. How many maple tree
did the workers plant today?
Answer:
7
Step-by-step explanation:
Calculate the slope of the line shown on the graph using any two of the labeled points. Show your work on paper or in the box below.
Answer:
A Benjamin Franklin
B George Washington
C Abraham Lincoln
D John Adams
Name two triangles that are congruent by the ASA Postulate.
ATC=DOG
ATC=NFI
PQR=INF
PQR=IFN
Answer:
ATC is congruent to DOG by ASA axiom for congruency
Answer: ATC = DOG
Step-by-step explanation:
How many solutions exist for the given equation?
3(x – 2) = 22 – x
3(x - 2) = 22 - x
3x - 6 = 22 - x
3x + x = 22 + 6
4x = 28 / : 4
x = 7
Only one solution
what is the answer?
8^-3
Answer:
-72
Step-by-step explanation:
Answer:
Step-by-step explanation:
[tex]a^{-m}=\dfrac{1}{a^{m}}\\\\8^{-3}=\dfrac{1}{8^{3}}=\dfrac{1}{8*8*8}=\dfrac{1}{512}[/tex]
In comparing two distributions, which attribute would you not compare?
A. Joint frequency
B. Shape
C. Spread
D. Center
Answer:
If joint frequency isn't an option it is Marginal frequency
Which expression correctly represents 10 less than a number cubed?
Answer:
a
Step-by-step explanation:
[tex]c^{3} - 10[/tex]
can anyone explain to me how to do this question ? ty !!
Step-by-step explanation:
use a little imagination.
the whole thing is a combination of churches and half- circles.
and you know the formula for the area of a circle ?
A = pi×r²
so, the only difficulty is to find the circles and then the radius of each involved circle.
when you look at the picture, the shaded area is almost identical to the lower half of the main circle.
2 bumps "look" over into the other side, but one equally sized bump is removed from this lower half.
so, as a first step we will calculate the area of the lower half of the main circle.
the diameter is 24 m, so the radius is half of that : 12m
the area of the large circle is therefore
pi×12² = 144×pi m²
since we only need the (lower) half, we divide this by 2 :
144×pi / 2 = 72×pi m²
the bumps up and down are actually half-circles too. just of smaller circles.
since AB = BC = CD, we know each of these lines are 1/3 of the main diameter AD.
so, the diameter of the smaller circles is 24/3 = 8 m
and their radius is half of that = 8/2 = 4m
the area of such a small circle is therefore
As = pi×4² = 16×pi m²
and a small half-circle area is then
16×pi / 2 = 8×pi m²
so, for the full shaded area I need to take the large half-circle and add 2 small half-circles, and then subtract 1 small half-circle.
so, in total I only need to add 1 small half-circle.
Ashaded = 72×pi + 8×pi = 80×pi m²
How do I solve (a+b)(3a-b)(2a+7b)
Please help
Answer:
Simplifying
-5 + -1(3a + b) + (2a + -7b) = 0
-5 + (3a * -1 + b * -1) + (2a + -7b) = 0
-5 + (-3a + -1b) + (2a + -7b) = 0
Remove parenthesis around (2a + -7b)
-5 + -3a + -1b + 2a + -7b = 0
Reorder the terms:
-5 + -3a + 2a + -1b + -7b = 0
Combine like terms: -3a + 2a = -1a
-5 + -1a + -1b + -7b = 0
Combine like terms: -1b + -7b = -8b
-5 + -1a + -8b = 0
Solving
-5 + -1a + -8b = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + -1a + 5 + -8b = 0 + 5
Reorder the terms:
-5 + 5 + -1a + -8b = 0 + 5
Combine like terms: -5 + 5 = 0
0 + -1a + -8b = 0 + 5
-1a + -8b = 0 + 5
Combine like terms: 0 + 5 = 5
-1a + -8b = 5
Add '8b' to each side of the equation.
-1a + -8b + 8b = 5 + 8b
Combine like terms: -8b + 8b = 0
-1a + 0 = 5 + 8b
-1a = 5 + 8b
Divide each side by '-1'.
a = -5 + -8b
Simplifying
a = -5 + -8b
Step-by-step explanation:
Which of place value is found to the left of the 1 in 10?
Answer:
Hundreds :)
Step-by-step explanation:
please answer this question
Answer:
3rd option
Step-by-step explanation:
a point (0, y ) lies on the y- axis
a point (x, 0 ) lies on the x- axis
a point (x, y ) lies in I quadrant
a point (- x, y ) lies in II quadrant
a point (- x, - y ) lies in III quadrant
a point (x, - y ) lies in IV quadrant
Then
point (2, - 5 ) lies in IV quadrant
-----------------------------------------------------------------
We require 2 equations with the repeating digit 7 placed after the decimal point.
let x = 0.427777... ( multiply both sides by 100 and 1000 )
100x = 42.777..... (1)
1000x = 427.777.... (2)
Subtract (1) from (2), thus eliminating the repeating digits
900x = 385 ( divide both sides by 900 )
x = [tex]\frac{385}{900}[/tex] = [tex]\frac{77}{180}[/tex]
A tub of water drains at 3 gallons per minute. y-12=-3(x-1)
HELP PLEASE solve for d
d= 1- 4bh
Step-by-step explanation:
- 8b = 2d - 2/h
Multiply both sides of the equation by h.
- 8bh = 2d - 2
Swap sides so that all variable terms are on the left-hand side.
2d - 2 = - 8bh
Add 2 to both sides.
2d = - 8bh + 2
The equation is in standard form.
2d = 2 - 8bh
Divide both sides by 2.
2d/2 = 2 - 8bh/2
Dividing by 2 undoes the multiplication by 2.
d = 2 - 8bh/2
Divide -8bh + 2 by 2.
Therefore: d = 1 - 4bh
Mira has $76 in her bank account and receives $11 in allowance every week. Write and expression to represent how much money she after w amount of weeks
Answer:
87w
Step-by-step explanation:
If she has $76 in her accoumt
and receives $11every week
76+11=$87
she would have$87xw in w amount of weeks
Answer:
76 + (11w)Step-by-step explanation:
Mira has $76 in her bank account and receives $11 in allowance every week. Write and expression to represent how much money she after w amount of weeks
----------------------------
76 + (11w)
Twelve boys collected 16 aluminum cans each. Fifteen girls collected 14 aluminum cans each. How many more cans did the girls collect than the boys
Answer:
18
Step-by-step explanation:
The boys collected:
12 · 16 = 192
The girls collected:
15 · 14 = 210
So the girls collected 18 more cans more than the boys.
(Integers calculation)
Compare in days.
55 days to 5 weeks
The ratio is
Answer: no.of days in 5 weeks= 5× 7= 35
ratio of 5 days to 5 weeks= 5/35
=1/7
answer= 1:7
Step-by-step explanation: .
Select all statements that are true about the triangles.
Answer:
D
Step-by-step explanation:
Side andle side