Hey what’s 20 times 20 minus 58 divided by 6? -3-
Answer:
390
Step-by-step explanation:
Answer:
57
Step-by-step explanation:
20*20=400
400-58=342
342/6=57
factorise
a) 4p²-81
b) x²-13x+36
Answer:
A = (2p + 9) (2p - 9)
B = (x - 9) (x - 4)
Step-by-step explanation:
For A : Rewrite 4p^2 as (2p)^2.
(2p)^2−81
Rewrite 81 as 9^2.
(2p)^2−9^2
Since both terms are perfect squares, factor using the difference of squares formula, a^2 − b^2 = ( a + b ) ( a − b ) where a = 2p and b = 9 .
(2p + 9) (2p − 9)
For B : Consider the form x^2 + bx + c . Find a pair of integers whose product is c and whose sum is b . In this case, whose product is 36 and whose sum is − 13 .
-9, -4
(x - 9) (x - 4)
I hope this helps.
PLZZZ HELPP anyonee plzzzz
Answer:
The correct answer is B
Step-by-step explanation:
its is B because when dividing fractions the division symbol changes into a multiplication sign and the fraction on the right flips
High Hopes^^
Barry-
some number is added to itself the result is multiplied by eight is four what is that number
Answer:
X=1/4
Step-by-step explanation:
(x+x)*8=4
(2x)*8=4
16x=4
X=4/16=1/4
Answer:
0.25
Step-by-step explanation:
First...
Assume that the number is x and make an equation.
(x + x) 8 = 4
Next...
Add.
(2x) 8 = 4
After that...
Divide.
2x = 4/8 so 2x = 1/2
Finally...
Divide more
x = 1/4 or 0.25
So your answer is 0.25.
I did double-check.
Daniela and Jack are hiking a steady incline. They use their GPS device to determine their elevation every 15 minutes. At 15 minutes and 30 minutes they were at elevations of 10,300 and 10,900 feet, respectively. Write an equation expressing their elevation in relation to time.
Answer:
[tex]h=40t+9700[/tex]
where the elevation, h, is in feet and time, t, is in minutes.
Step-by-step explanation:
At the time, [tex]t_1=15[/tex] min, the elevation, [tex]h_1= 10,300[/tex] feet and
at the time [tex]t_2= 30[/tex] min, the elevation, [tex]h_2=10,900[/tex] feet.
As they are hiking a steady incline, so the change in the elevation with respect to time will be constant.
So, there will be a linear relationship between the elevation and the time.
Let [tex]h[/tex] be the elevation at any time instant [tex]t[/tex], so the linear relation among these quantities is
[tex]h=mt+C_0\;\cdots(i)[/tex]
where [tex]m[/tex] is the rate of change of elevation with respect to time and [tex]C_0[/tex] is constant.
The change in the elevation, [tex]\Delta h=h_2-h_1= 10,900-10,300=600[/tex] feet.
and the change in time, [tex]\Delta t=t_2-1_1=30-15=15[/tex] min.
So, change in the elevation in unit time,
[tex]m=\frac{\Delat h}{\Delta t}=\frac{600}{15}=40[/tex] feet/min.
Now, from equation (i)
[tex]h=40t+C_0[/tex]
As the elevation, [tex]h=h_1[/tex] at time [tex]t=t_1[/tex], so
[tex]10,300=40\times15+C_0[/tex]
[tex]\Rightarrow C_0=9700[/tex]
Hence, the required equation is
[tex]h=40t+9700[/tex]
where the elevation, [tex]h[/tex], is in feet and time, [tex]t[/tex], is in minutes.
Convert 66 ft/sec to miles per hour. (1 mi = 5280 ft)
348,480 mi/hr
45 mi/hr
80 mi/hr
288,000 mi/hr
0.75 mi/hr
96.8 mi/hr
Answer:
45
Step-by-step explanation:
Someone please help me with these I’m stuckkkkkkkkkk!!! It’s Due in less than 5 minutes ofmymgmtmtmrmfndnka
Answer:i can help with the first 3 #1 = 6, #2 = 13, and #3 = 7
Step-by-step explanation:
Answer:
A:5.91607978
b:13.0384048
c:2.11660105
I don't know D e or f(I dont know how to solve those......)
Step-by-step explanation:
q log a -3 log b
Condense logarithm
Answer:
Step-by-step explanation:
q log a is equivalent to log a^q. Note: This assumes that the base of your logarithmic system is 10.
-3 log b is equivalent to log b^(-3)
and so q log a -3 log b in condensed logarithm form is
log {a^q*b^(-3)}
a^q
or log -----------------
b^3
Lesley and Enid left their waitress a 15% tip.
The tip was $10.25.
What was their total bill, not including the tip?
Answer: $68.37
Hope this helps;)
Answer:
Cost before tip: $68.34
Cost after tip: $78.59
Step-by-step explanation:
Please see attached image. Calculations are executed in black. Answers are highlighted in blue. Solution explanation is provided in red. Implicit/'skip-over' steps are in green.
~~
Hope this helps.
Which transformation will create a similar and a congruent triangle?
Rotation
Reflection
Dilation
Translation
what is 2 to the power of 2 multiply 5
What is the equation of a line with a
slope of -2 and crosses the vertical axis
at the point (0, 5)?
Answer:
y=-2x+5
Step-by-step explanation:
the slope is m and the y-intercept is b in the form y=mx+b, and -2 is the slope and 5 is the y-intercept in this equation, so y=-2x+5
Answer:
y=-2x+5
Step-by-step explanation:
y=mx+b
m is the slope which is -2
b is the y intercept which is given in the problem, 5
7th GRADE WORK HELPPP!!! ILL BRAINLIST!!!
Answer: Rachel's prediction is faster than the actual unit rate, and Theadore's prediction is slower.
Answer:
I'm pretty positive the answer is B
Step-by-step explanation:
Since it's been 7 1/2 weeks and they thought it would grow atleast 2/5 a foot a week that should mean it's growing faster than anticipated.
3-(2)/(9)b=(1)/(3)b-7
Answer:
b=18
Step-by-step explanation:
Simplify the following expression:
-9(14p - 8) - 4p
Step-by-step explanation:
-126p + 72 - 4p
-130p + 72
What is the equation in standards form of the line y=1/9x+5
I’m not sure if i am correct with my answer. Can Someone help or confirm which answer it is or if i’m correct or not? :)
Answer:
First Option.
Step-by-step explanation:
c-c+a+ |a|; use a = 4, and c=5
Answer:
c-c+a+|a|
5-5+4+|4|
8
Step-by-step explanation:
This is due in ten mins help plz
A car manufacturer advertises that its new car model goes from 0 to 80 miles per hour
in 5 seconds based on a test drive. During the first 5 seconds of the test drive, was
the car's speed ever exactly 45 miles per hour?
Answer: dang you live in moco too
Step-by-step explanation:
through: (-3, 2), parallel to y = -
4
5
x + 1
Answer:
[tex]y=\frac{-4}{5}x-\frac{2}{5}[/tex]
Step-by-step explanation:
passes through (-3,2), parallel to y=-4/5x + 1
[tex]y-y_{1} =m(x-x_{1} )\\y-2 =\frac{-4}{5} (x+3)\\y-2=\frac{-4}{5}x-\frac{12}{5}\\y=\frac{-4}{5}x-\frac{2}{5}[/tex]
Find the value of a. then find the angle measures of the polygon
Whats would be the closest answer to this question
Answer:
KM
JK
PK
MJ
i hope this helps
5(5t-2) = -35
show how to solve the given equation
I need help with this please
Angle 1 and 2 are supplementary angles.
This is ur answer....
Supplementary angle.....
Hello! I need help with my math homework! I need it ASAP.
6x - 3 = -18 + x
Answer:
x = -3
Step-by-step explanation:
6x - 3 = -18 + x
Subtract x from each side
6x-x - 3 = -18 + x-x
5x -3 = -18
Add 3 to each side
5x-3+3 = -18+3
5x = -15
Divide each side by 5
5x/5 = -15/5
x = -3
There is a daily fee for renting a moving truck, plus a charge of $0.50 per mile driven. If driven 48 miles, it costs $64 to rent a truck.
Answer:
The total would be $88
Step-by-step explanation:
First multiply $0.50 and 48 miles
$0.50x48=$24.00
Then add $24.00 and $64.00
$24.00+$64.00=$88.00
Hope this helps :)
Have a nice day :)
Can you give me brainliest plz :)
HELP What is an equation for the parallel to y= 3x-1 that passes through (-9,-2)
Answer:
The line parallel to this equation would be y=3x+25
Step-by-step explanation:
A parallel line has the same slope but a different y-intercept (so just ignore the "-1" in the equation ) Our goal is to find the y-intercept ("b")
We will start with
y=3x+b, plug in (-9,-2) for the x and y
-2=3(-9)+b
-2=-27+b, add 27 to both sides
-2+27=-27+27+b (the 27's on the right side cancel side)
b=25
our new equation is y=3x+25
factorise k^2 + 5k + 6
Answer: (k+2) (k+3)
Step-by-step explanation:
Factor 5^2 +5k+6 using the AC method.
Solve for m.
m+9=-2
m=?
Answer:
-11
Step-by-step explanation:
Because you just carry the nine over which when you switch it sides it becomes negative so it's -9 + -2 which equals negative 11