Answer:
Step-by-step explanation:
Volume = 12* 15 * 5 = 900 cm^3
900 cm^3 * 6.6 g/cm^3 = 5940 g
What is the area of the triangle?
16
10
"T
8
Answer:
40 unit^2.
Step-by-step explanation:
Area = 1/2 * base * altitude
= 1/2 * 8 * 10
= 40 unit^2.
Divide 128 chairs among 3 rooms in the ratio of 1 : 3 : 4.
Answer:
Step-by-step explanation:
1x+3x+4x= 128
8x=128
x=128/8
x=16
therefore,
room 1 = 1x
= 1*16=16
room 2 = 3x
=3*16=48
room 3 = 4x
=4*16=64
PLS MARK BRAINLIEST, THNX
Seven less than the product of 6 and a number is equal to 8 translates to an equation
Answer:
Answer: No it isn't an equation. Not yet at least.
Step-by-step explanation:
Yes it might well do, but if it does, it needs something on the other side of wherever you put the equal sign.
6x - 7 is all you have so far and you have no idea what comes next. As it is, what you wrote is an algebraic expression.
An animal shelter currently has 20 cats and 25 dogs. what is the ratio of cats to dogs? (PLEASE ANSWER QUICKLY)
Answer:
4:5
...................
Which is the correct algebraic expression for each phrase? 13 times the cost of one ticket *
A. t ÷ 13
B. t - 13
C. 13 + t
D. 13t
Can someone plz help
Describe the domain and range of $y=3\left(6\right)^{x-1}-8$ .
How do I solve for y=160x+2=y=280x-3?
Need help on number 12
Answer:
360
Step-by-step explanation: 18x20
Answer:
area of parallelogram=base ×height=20×18=360mm²
When Alexis adopted her puppy, the puppy weighted 12 pounds. One year later, the puppy weighted 60 pounds. By what percent did the puppy's weight change in one year?
Answer:
400%
Step-by-step explanation:
Original wieght = 12
New weight = 60
Change = 60- 12= 48
Change percent = change / original x 100 = 48 / 12 x 100 = 400 %
I hope its right!!!! :)
what equation is equal to: 5x-(9-6x)
Answer:
x = 9
Step-by-step explanation:
Move all terms containing x to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + -9 + -1x = 0 + -9
Combine like terms: 9 + -9 = 0
0 + -1x = 0 + -9
-1x = 0 + -9
Combine like terms: 0 + -9 = -9
-1x = -9
Divide each side by '-1'.
x = 9
four times two less than a number is the same as thrice one more than the number. find the number
Answer:
11
Step-by-step explanation:
4 times 2 less than the number is equal to 4 * (x-2).
3 * one more than the number is equal to 3 * (x+1).
you get 4 * (x-2) = 3 * (x+1).
distribute the multiplication on each side of the equation to get:
4x - 8 = 3x + 3
subtract 3x from both sides of the equation and add 8 to both sides of the equation to get: 4x - 3x = 3 + 8
combine like terms to get x = 11.
that's your solution.
4 * (x-2) is equal to 4 * (11 - 2) which is equal to 4 * 9 which is equal to 36.
3 * (x+1) is equal to 3 * (11 + 10 which is equal to 3 * 12 which is equal to 36.
your solution is that the number is equal to 11!
n the triangle below, what is the value
of x?
Answer:
90
Step-by-step explanation:
can u help me
What is the volume of a square-based pyramid with a base length of 5 ft and a height of 24 ft?
Enter your answer in the box.
answer asap
ft³
solve the systems of equations by elimination-Solo team teach
5a-2b = 0
2a-3b = -11
Answer:
a=2
b=5
Step-by-step explanation:
5a=2b
a=2/5b
2(2/5b) -3b= -11
4/5b-3b =-11
-2.2b=-11
b=5
5a=2*5=10
a=2
Find two integers whose sum is 14 and product is 33
Answer:
Step-by-step explanation:
Two integers whose sum is 14 and the product is 33 are
11 and 3 .
sum = 11 + 3 = 14
product = 11 * 3 = 33
PLZZZZZZZZZZZZZZZZ HELP
Answer:
The first box in the girl row is 18, the second one in the boy row is 8, and the bottom one is also 18.
Step-by-step explanation:
To get 81 to 9, you have to divide by 9, which means you have to do the same to 72. You get the ration 9 to 8, 9 being girls and 8 being guys. Then to get from 8 guys to 16, you have to multiply by 2, which means you do the same to 9 and get the answer of 18 girls. Hope this helps :)
What is the scale factor ?
Answer:
A scare factor is a shape that has to do with the measures.
Step-by-step explanation:
Is (3,15) a solution for y = 5x
Answer:
yes
Step-by-step explanation:
15 = 5(3)
15 = 15
Answer:
Yes
Step-by-step explanation:
15 = 5(3)
15 = 15
The current in a simple electrical circuit is inversely proportional to the resistance. If the
current is 80 amps when the resistance is 50 ohms, find the current when the resistance is
22 ohms.
Answer:
52
Step-by-step explanation:
if 80 anps has 50 resistance then
52 has 22
80-30=50
52-30=22
pls help me with this multiple choice !
Answer:
D
Step-by-step explanation:
[tex] \sin(60) = \frac{6 \sqrt{3} }{x} \\ x = \frac{6 \sqrt{3} }{ \sin(60) } = 12 \\ \tan(60) = \frac{6 \sqrt{3} }{y} \\ y = \frac{6 \sqrt{3} }{ \tan(60) } = 6[/tex]
If the sales tax rate is 7%, how much tax would Luis pay for a $325 bicycle?∨
Answer:
24.20 tax
369.98 total
Step-by-step explanation:
25
L
7
pls ans me pls pls pls
Answer:
5x
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Please help! I need the answers with an explanation to these questions ASAP. Thanks!
Question 1. What value could complete this given equation that would make it true for no values of x? Show or explain your thinking.
Question 2. What value could complete this equation that would make it true for every value of x? Show or explain.
Answer:
0
Step-by-step explanation:
Given equations is
x+2y=8,5x+10y=c
The equations a
1
x+b
1
y=c
1
and a
2
x+b
2
y=c
2
will have uique solutions if
a
2
a
1
=
b
2
b
1
=
c
2
c
1
but from equations,
a
2
a
1
=
5
1
,
b
2
b
1
=
10
2
,
c
2
c
1
=
c
8
∴
a
2
a
1
=
b
2
b
1
The given equations does not have unique solution, so the given statement is false, The correct answer is 0
Suppose lifetime of certain type of car batteries are
normally distributed. Brand G has a mean lifetime of three years and
a standard deviation of one year. Brand M has a mean lifetime of 36
months and a standard deviation of four months.
(a) Which brand is more reliable and why?
(b) Pick one battery from each brand randomly, which one has a
better chance to last for four years and why?
Answer:
Follows are the solution to the given points:
Step-by-step explanation:
The brand (M) will become more reliable as the standard deviation of an (M) brand will be much lower than the standard deviation of (G) brand.
such as four years,
Calculating the z score for G brand[tex]= \frac{(4-3)}{1} = \frac{1}{1} = 1[/tex]
Calculating the z score for M brand[tex]= \frac{(4-3)}{(\frac{1}{3})} = \frac{(1)}{(\frac{1}{3})} = 1 \times \frac{3}{1}= 3.[/tex]
Because the z mark of the (G) brand is less, it is much more probable that the (G) Brand could last four years. It is because the variability of the (G) brand is very high, which allows lasting longer by expanding its expansion.
The difference of a number and - 11/12 is the same as the difference of three times the number and 1/6
Answer:
The number is 13 /24
Step-by-step explanation:
Let the number = x
x - (- 11/12) = 3x - 1/6
x + 11/12 = 3x - 1/6
Collect like terms ;
x - 3x = - 1/6 - 11/12
-2x = (-2 - 11) / 12
-2x = - 13 / 12
-2x(12) = - 13
-24x = - 13
x = 13 / 24
Pour teacher has disabled instant marking. Your marks will appear after the due date.
y is inversely proportional to x.
When y = 7, x = 9
a) Work out an equation connecting y and x.
b) Work out the value of y when x = 21.
How do i find k?
Answer:
a) y = 63/x
b) y = 3
Step-by-step explanation:
Inverse proportionality between two variables means that if one of them increases, then the other one decreases.
These type of relationships can be written as:
y = k/x
Now we know that when y =7, x = 9
Then we can replace these two values and find the value of k.
7 =k/9
7*9 = k
63 = k
The our relationship is:
y = 63/x
This is the solution to a).
Now let's go with b)
We want to find the value of y when x = 21. then we just need to replace x by 21 in the equation "y = 63/x"
We will get:
y = 63/21 = 3
When x = 21, y is equal to 3.
What is the total cost of a dress if the regular price is $65
and the sales tax is 3.25%?
Answer:
$67.11
Step-by-step explanation:
3.25/100=0.0325
65*0.0325=2.1125=2.11
65+2.11=67.11
what is the surface area of the 3- dimensional shape 3 ft 3 ft 3 ft
A. 24 Square feet
B. 72 Square feet
C. 198 Square feet
D. 216 Square feet
Answer:
c. 198 square feet
Step-by-step explanation:
Based on the picture I'm thinking the length of each line segment is 3ft, so each 'tile' on the surface of the figure is 9sqft.
Looking at the figure from the front and back you would see 4 tiles from each direction, same from the top and bottom (so far we have front + back + top + bottom = 4 + 4 + 4 + 4 = 16 tiles)
Looking directly from either side you would see 3 tiles each way, for 6 more tiles total, so the total number of tiles covering the figure is 16 + 6 = 22 tiles
Each tile is 9sqft, so total area is 22(9) = 198 sqft
what will happend if agricultural land decrease
can i get the crown please ↑ ↑ ↑ ↑ ↑ ↑
they have pictures thats
the answer
How do I Determine whether Rollie's theorem can be applied to F on the closed interval (AB) F of X = -x squared
Answer:
See Explanation
Step-by-step explanation:
Your question is incomplete. I will take the complete question as:
[tex]f(x) = -x^2[/tex]
[tex]Interval: [-1,1][/tex]
Required
Determine whether Rollie's theorem can be applied or not
First, find the coordinates of the endpoints on the closed interval [-1, 1]
[tex]f(x) = -x^2[/tex]
[tex]f(-1) = -(-1)^2 = -1[/tex] ------ [tex](-1,-1)[/tex]
[tex]f(1) = -(1)^2 =-1[/tex] ---- [tex](1,-1)[/tex]
Find the derivative of f(x)
[tex]f(x) = -x^2[/tex]
[tex]f'(x) = -2x[/tex]
Calculate the slope (m) of the secant line i.e. [tex](-1,-1)[/tex] and [tex](1,-1)[/tex]
[tex]m = \frac{-1 - (-1)}{1 - (-1)}[/tex]
[tex]m = \frac{-1 +1}{1 +1}[/tex]
[tex]m = \frac{0}{2}[/tex]
[tex]m=0[/tex]
Set the derivative to the calculated slope:
[tex]f'(x) = m[/tex]
[tex]-2x = 0[/tex]
[tex]x=0[/tex]
Plug in 0 for x in f'(0)
[tex]f'(x) = -2x[/tex]
[tex]f'(0) = -2 * 0[/tex]
[tex]f'(0) = 0[/tex]
Since f'(0) is differentiable at x = 0. We can conclude that Rollie's theorem can be applied
