find the volume of a rectangular prism if the length is 4x, the width is 5x, and the height is x^2+x+2. Use the formula V=lxwxh to find the volume
Answer:
Step-by-step explanation:
The volume is [tex] V=l\times w \times h[tex]
So
[tex]V=4x \cdot 5x\cdot (x^2+x+2)\\=20x^2\cdot (x^2+x+2)\\=20x^4+20x^3+40x^2.[/tex]
need help on precalculus
Answer:
arc = 15π
Step-by-step explanation:
The arc is calculated as
arc = circumference of circle × fraction of circle
= 2πr × [tex]\frac{225}{360}[/tex] ( r is the radius )
given diameter = 24 then r = 24 ÷ 2 = 12
arc = 2π × 12 × [tex]\frac{5}{8}[/tex]
= 24π × [tex]\frac{5}{8}[/tex]
= 3π × 5
= 15π
Evaluate x2 – 4x – 5, when x = -4
Answer:
3
Step-by-step explanation:
-8+16-5
Answer:
13Step-by-step explanation:
x2 - 4x - 5
4×2 - 4×4 - 5
8 - 16 - 5
8 - 21 = - 13
HURRY PLEASE I NEED IT ASAP 15 POINTSS!!!!
Which pair shows equivalent expressions?
A. 2x10= -2(x-5)
B. -2(x+5)= 2x-10
C. -2x-10= -2(x=5)
D. -2(x-5)=-2x-10
Answer:
Please the answer is not inside
Because it can't be D
Brainlist for correct answer and 25 points for answering! Find the equation of the linear function represented by the table below in slope-intercept form.
Answer:
y=-5x+1
Step-by-step explanation:
hope it helps you
| 7x-2 | +3 = -1 solve for x
Answer:
x = -2/7 or
x = 6/7
Step-by-step explanation:
|7x-2| + 3 = -1 subtract 3 from both sides
|7x-2| = -4 now there are two probabilities
7x-2 = -4 or
7x-2 = 4 if first probability the value of x would be:
7x-2 = -4 add 2 to both sides
7x = -2 divide both sides by 7
x = -2/7 for the second probability the value of x would be:
7x-2 = 4 add 2 to both sides
7x = 6 divide both sides by 7
x = 6/7
What is the equation of the line that passes through the point (3, 2) and has a slope
of-K?
Answer:
[tex]y=\displaystyle -\frac{5}{3}x+7[/tex]
Step-by-step explanation:
Hi there!
Linear equations are typically organized in slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept
We're given that the slope is [tex]\displaystyle -\frac{5}{3}[/tex]. Plug this into [tex]y=mx+b[/tex]:
[tex]y=\displaystyle -\frac{5}{3}x+b[/tex]
Now, to solve for the y-intercept, plug in the point (3,2) and solve for b:
[tex]2=\displaystyle -\frac{5}{3}(3)+b\\\\2=-5+b\\b=7[/tex]
Therefore, the y-intercept of the line is 7. Plug this back into [tex]y=\displaystyle -\frac{5}{3}x+b[/tex]:
[tex]y=\displaystyle -\frac{5}{3}x+7[/tex]
I hope this helps!
Donovan is measuring the angles of a triangle. He uses the first two angles and gets 10° and 120° what should be the measurement of the third angle
Answer:
50°
Step-by-step explanation:
The sum of a triangles' angles is 180°
Now set up an equation:
180 - (10 + 120) = ___
180 - 130 = 50°
The ratio of Tom's age to his nephew's age is 3:1 . The difference in their ages is 24 years.How old is Tom now?
Answer:
the age of toms nephew is 8 years
7. Paula reduced the size of a rectangle to a height of 2 inches.
What is the new width if it was originally 24 inches wide and 12
inches toll?
& Simplify the expression, if possible. If not possible
in
Answer: if the width was not effected then the width is still 24 inches
if the area stayed the same, then
find area
area=legnth times width
288=12 times 24
so the new height./legnth =2
288=2 times width
divide by 2
144=width'
the new width =144
Find each angle. Separate your awnser with a comma. For an example 18, 72
The equation for line a is shown. y=-2/3 x-4
line a and b are parallel, and the point (-2,1) lies on line b. write the equation for line b
Step-by-step explanation:
line a slope (x coefficient)= -2/3
Parallel lines have the same slope and will never intersect.
line b slope = -2/3
line equation =
y =mx + b
m = slope
y= -2/3 x + b
from the point given (-2,1)
x = -2
y = 1
1 = 4/3 + b
b = -1/3
b equation =
y = (-2/3)x - (1/3)
Please help me solve this. Just number 16.
Answer:
Smaller angle = 70 degrees
Step-by-step explanation:
Supplementary angles = add up to 180 degrees
let x = bigger angle
smaller angle = (x/2) + 15
x + (x/2) + 15 = 180
x + 0.5x + 15 = 180
1.5x = 165
x = 110
180 - 110 = 70
or
(x/2) + 15 = (110/2) + 15 = 55 + 15 = 70
Which of the following is written in correct scientific notation?
-4x10²
2.1 x 100
39 x 10
-0.3x10
please help i have to turn this in in the morning
-4 × 10² is written in correct scientific notation.
Determine which of the following are functions. Select all that apply,
X
{(-4,2), (-2, 1), (1,3)
(-1,4), (0,5), (2,5)}
y 4.45X 9
-6
y
17
13
13
-2
D
Sicco
9
2.
6
oo
5
3
10
1
4
7
Intro
Done
Answer:
Try incerting a picture it might help me
Step-by-step explanation:
Answer:
a and d
Step-by-step explanation:
got it right.
what's 4 divided by 5/7 as a mixed number in its simplest form
Answer:
8[tex]\frac{1}{7}[/tex] (in mixed fraction)
Step-by-step explanation:
4 ÷ [tex]\frac{5}{7}[/tex]
can also be written as
[tex]\frac{4}{1}[/tex] ÷ [tex]\frac{5}{7}[/tex]
[tex]\frac{4}{1}[/tex] ×[tex]\frac{7}{7}[/tex] [tex]\frac{5}{7}[/tex] × [tex]\frac{1}{1}[/tex] (to do the denominators same)
[tex]\frac{28}{7}[/tex] ÷ [tex]\frac{5}{7}[/tex]
= [tex]\frac{28/5}{7}[/tex]
= [tex]\frac{5.6}{7}[/tex]
= [tex]\frac{5.6}{7}[/tex] × [tex]\frac{10}{10}[/tex] (to remove the decimal point)
= [tex]\frac{56}{7}[/tex]
= 8[tex]\frac{1}{7}[/tex] (in mixed fraction)
A sum is Rs x. If 2÷3 parts of the sum is Rs 20, find the sum.
Answer:
30
Step-by-step explanation:
2/3*x=20
2x=20*3
x=60/2
x=30
I need help with this problem
Answer:
x^3/14
Step-by-step explanation:
When an exponent is raised to an exponent, you multiply the exponents. Therefore, the answer is x^2/7 * 3/4.
Round 249798.828806 to the nearest ten.
Answer: the answer is like it is
Step-by-step explanation:
You just round the number in the tenths 0 is closer to 0 then to 10!
one third of the sum of a number and four
Answer:
[tex]\frac{1}{3} (n+4)[/tex]
That is what the expression would be
Find X+Y
Geometry 9th
Answer:
x = 71 and y = 45
Step-by-step explanation:
is -15/6 a integer?
Answer:
No its not, integers are any number that is whole, without decimals
Which graph has a slope of Two-thirds?
Answer:
On the coordinate plane, a line with a positive slope passes through the points (0, negative 1) and (1, 1).
witch expressions are equivalent to k/2?
2 answers
k - 2
2/k
1/2k
k divided by 2
k+k
Answer:
C and D
Step-by-step explanation:
[tex] \frac{k}{2} = \frac{1}{2} k = k \div 2[/tex]
Answer:
c and d
Step-by-step explanation:
yes thats the answer
6 + 4(19 – 15)
Evaluate
[tex]\large \mathfrak{Solution : }[/tex]
6 + 4(19 - 15)6 + 4(4)6 + 1622[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
6 + 4 (19 - 15)[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
[tex] \mathfrak{6 + 4 ( 19 - 15 )}[/tex]
Subtract 15 from 19 to get 4.[tex] \mathfrak{6+4\times 4 }[/tex]
Multiply 4 and 4 to get 16.[tex] \mathfrak{6+16 }[/tex]
Add 6 and 16 to get 22.[tex] = \large\boxed{ \boxed{ \bf22 }}[/tex]
Store employees are handing out coupons. Every 5th customer gets a free bagel coupon. Every 9th customer gets a free drink coupon. Which customer is the first to receive both coupons? the 30th customer the 45th customer the 60th customer the 90th customer
Step-by-step explanation:
hope you will understand ( ´ ▽ ` )ﾉ
Answer:
its 45 bc i searched up the answer and chose the other persons response and turns out its 45 not 60th
Step-by-step explanation:
Can someone plz help me I beg you :((
Answer:
all of them
Step-by-step explanation:
Need this ASAP pls help !
Simplify the expression and write the result in standard form, a+bi
3 √-25 =
Answer:
[tex]3 + \sqrt{ - 25} = 3 + \sqrt{25} i\\ = 3 + 5i \\or \: \\ 3 \sqrt{ - 25} \\ = 3 \times 5i = 15i \\ thank \: you \\ [/tex]
Light travels about 3 x 10^5 metres per second. Find the time it takes to travel 1 metre. Give your answer in standard form.
Answer:
t=3.3*[tex]10^{-6}[/tex]
Step-by-step explanation:
t=[tex]\frac{S}{v}[/tex]
As
S=1m
v=3*[tex]10^{5}[/tex]ms^-1
t=[tex]\frac{1}{3*10^{5} }[/tex]
t=3.3*[tex]10^{-6}[/tex]
Answer: According to the universe in which your light only moves at 3x10^5 meters/sec, it would take 3.333x10^-6 seconds to go 1 meter. Where I live (Earth in the Milky Way Galaxy), light travels 3x10^8 m/s. It only requires 3.33x10^-9 second. So there . . .
Step-by-step explanation:
The speed of light is in units of meters/sec. If it is 3x10^5 meters/sec, we can also write the inverse:
1 sec/3x10^5 meters [It takes 1 sec to go 3x10^5 meters]
Do the division to find seconds per 1 meter: 3.333x10^-6 seconds.
-------
For Milky Way inhabitants, the division is 1 sec/3x10^8 meters, or 3.33x10^-9 second. Time flies for them.
