I need help with this fast! Thanks!
What is the value of the expression? 9 3/4−2 1/5+1/2
_ -- > Ex: 9 1/7
I need this fast!
Answer: 8 1/20 or 8.05.
Step-by-step explanation: First you would want to make 9 3/4 - 2 1/5 to 39/4 - 11/5. We need to get the LCD or Least Common denominator of 4 and 5, which is 20. The rule is what you multiplied the denominator by you must multiply the numerator by, so our new equation is 195/20 - 44/20, which is 151/20. Now, we have to find the LCD of 2 and 20, which is 10. So 151/20 + 10/20 is 161/20 or 8 1/20.
(-w^3 + 8w^2 - 3w) - (4w^2 + 5w - 7) PLS HELP in standard polynomial form plsssss
Answer:
−w^3+4w^2−8w+7v
2
3) Last week, the price of gasoline was $3
per gallon. This week, the price fell to
$2.85 per gallon. By what percent did the
price of gasoline drop week over week?
Solve using an equation.
Answer:
decrease by 5%
Step-by-step explanation:
2.85 - 3 = -0.15
-0.15/3 = -0.05
-0.05 x 100 = -5%
2x + 49 = -8 (-x-5)
Show your work please :D
Answer:
2x + 49 = -8 (-x-5)
x=-57/2
x=-28.5
because if you substitute x for 28.5, it makes it equal
Step-by-step explanation:
Hope I Helped!!!
please help!!!!!!!!!!!! !!!
due in a few hours, i'll give brainliest to the correct answer!!!
Answer:
Angle a=45, Angle b=45
Step-by-step explanation:
The angles are complementary angles which means they both add up to 90 degrees. And if angles a and b are equal then its 90/2 which is 45.
Mr. Alvarez makes a walkway out of 3 cement slabs. He uses 14 cubic feet of cement to make the walkway. Each square slab has a volume of 4 cubic feet. How many cubic feet of cement is the middle slab?
Need help Pls!!
Answer: [tex]6\ ft^3[/tex]
Step-by-step explanation:
Given
[tex]14\ ft^3[/tex] cement is used
The volume of each square cement slab is [tex]4\ ft^3[/tex]
So, Volume of two square slab=[tex]2\times 4=8\ ft^3[/tex]
The volume of middle slab= Total Volume -Volume of square slabs
=[tex]14-8=6\ ft^3[/tex]
Answer:
6
Step-by-step explanation:
what is the value of (f – 9)(144)?
A 6-pack of envelopes costs $0.84. What is the unit price?
Answer:
$.14 is the answer :)
Step-by-step explanation:
.84/6=.14
Answer:
$0.14
Step-by-step explanation:
0.84÷6=0.14
There are boys and girls in one class of 40. If there are 10 more boys than girls, how many boys are there in the class and how many girls are in the class?
Answer:
15 girls and 25 boys
Step-by-step explanation:
25 boys is 10 more than 15 girls.
25 + 15 = 40
40 people in the class
please help me TT,,
all you need is in the picture
Answer:
Option (a)
Step-by-step explanation:
Since, can of the energy drink is in the form of a cylinder.
Volume of a cylinder is given by the formula,
V = πr²h
Here, r = radius of the can
h = height of the can
By substituting the values in the formula,
V = π([tex]\frac{1.5}{2}[/tex])²(7)
= (3.14)(0.75)²(7)
= 3.14(0.5625)(7)
= 12.36375 in³
≈ 12.36 in³
Therefore, Option (a) will be the correct option.
Please help me........
За + 2b – 8а + Ь
Please help
Answer:
-5a+3b
Step-by-step explanation:
-5a+3b Combine like terms
?• (-10) = 90
Please help I need it now
Answer:
x = -9
Step-by-step explanation:
x • -10 = 90
x = 90/-10
x = -9
Hope this helped! <3
solve the system of equations
−4x+3y=−2
y=x−1
x =
y =
$288 is 6/5
of what number?
Answer:
Step-by-step explanation:
$288= 6/5x, x being the number we are looking for
We can then divide 288 by 6/5, which is the same as (288x5)/6
This will give you 240=x, which is $240
An oblique prism with a square base of edge length x United has a volume of 1/2 x3 cubic units. Which expression represents the heights of the prism
Answer:
The answer is x units.
Step-by-step explanation:
We are tasked to solve for the expression that represents the height of the prism. We are given with the following values:
length = x² units
volume = x³ units
We will use the formula below:
V = length x height
x³ = x² * height
height = x³/x units
height = x units
The answer is x units.
Step-by-step explanation:
Need help asap please
Answer:
Step-by-step explanation:
6.3 in
A coat that usually cost $120.00 is marked 1/3 off. What is the sale price of the coat?
Answer:
The sale price would be $80.00
Step-by-step explanation:
1/3 (33%) of $120 is $40.
$120 - $40 = $80
Y’all know what to do!
Answer:
The answer is B.
Step-by-step explanation:
Learn it yourself kid.
Answer and Step-by-step explanation:
First, look at the inequality. We see the there is a greater than or equal to sign.
That means the graphs can NOT be C or D, since those graphs only apply to inequalities with the greater than or less than sign.
That leaves us with graphs A and B.
We see the y is greater than the value, so anything above the line is filled in.
That means that graph A is the answer. Which means,
Answer choice B, graph A.
#teamtrees #WAP (Water And Plant)
A6 ft tall man standing next to a tree casts a 8 ft shadow. If the tree is 15 ft tall then how long is its shadow?
Answer:
The tree's shadow is 20 ft long.
Step-by-step explanation:
If you take 6 and 15 and turn it into a fraction 6/15 and take 8 and the missing value (x) and turn that into a fraction 8/x, then you can move to the multiplication.
6/15 *8/x = 6x=120/6
120/6=20
Hope this helps :)
2(2x + 3)^2– 7(2x + 3) - 4
Answer:
Solution in photo
Step-by-step explanation:
Cheryl is thinking of 3 consecutive numbers whose average is less than or equal to half of the smallest number. Write an inequality that she could use to identify the smallest of the three numbers.
Answer:
(10)>(5)
Step-by-step explanation:
WILL MARK BRAINLEST!!!!!!
What should be the first step in adding these equations to eliminate y?
8x + 3y = 2
+ 4x - 6y= -7
O A. Multiply the top equation by 4.
O B. Multiply the bottom equation by 8.
C. Multiply the bottom equation by 2.
D. Multiply the top equation by 2.
D. Multiply the top equation by 2.
Answer:
D
Step-by-step explanation:
Given the 2 equations
8x + 3y = 2 → (1)
4x - 6y = - 7 → (2)
Multiplying the top equation (1) by 2 and adding to (2) will eliminate y
16x + 6y = 4 → (3)
Add (2) and (3) term by term to eliminate y
20x + 0 = - 3
20x = - 3 ( y has been eliminated )
cosa/(1+sina)+cosa/(1-sina)=2seca
prove this:)
Answer:
Please check explanations
Step-by-step explanation:
Using the difference of two squares, the lowest common multiple becomes;
1-sin^2 a
Thus, we have that;
cos a (1-sin a) + cos a (1 + sin a) /1 - sin^2 a
1 - sin^2 a = cos^2 a
That means;
{cos a - cos a sin a + cos a + cos a sin a}/ cos^2 a
= 2cos a / cos^2 a
= 2/cos a
but 1/cos a = sec a
Thus;
2/ cos a = 2 sec a
How much will a $559.99 LCD TV cost including the sales tax of 6.25%?
What is the slope of D and E??
Answer:
-4 and 0
Step-by-step explanation:
Rise over Run would give us the slope.
In the first graph, It goes down 4 while it goes 1 to the right.
This means that -4/1 = -4.
The second graph does not go up or down, meaning 0, while it goes 1 to the right.
This means that 0/1 = 0.
simplify the expression 5^-3
Answer:
It is the 3rd answer, 1/5³. I checked. Happy to help. Brainliest would be thanking.
18. The half-life of a radioactive isotope is 7 years.
Initially, there are 100 grams of the isotope.
Which expression shows the amount of the isotope
remaining after x years?
Answer:
100(0.5)^X/7
Step-by-step explanation:
That is how you would put it ;)
Given that x is a nonnegative number, a student conjectured that x+3
Which value of x is a counterexample to the student's conjecture?
X= -1/3
X= -3
X= 2
X= 3
Answer:
[tex]x = 2[/tex]
Step-by-step explanation:
Given
Conjecture: [tex]x + 3 < x^2[/tex] --- (Missing)
Required
Which value of x prove the conjecture otherwise
To do this , we simply substitute the values of x in the options
[tex]1.\ x = -\frac{1}{3}[/tex]
This is negative;
So, there is no need to check
[tex]2.\ x = -3[/tex]
This is also negative;
So, there is no need to check
[tex]3.\ x = 2[/tex]
[tex]x + 3 < x^2[/tex]
[tex]2 + 3 < 2^2[/tex]
[tex]5 < 4[/tex]
This value of x is false because 5 is not less than 4
[tex]4.\ x = 3[/tex]
[tex]x + 3 < x^2[/tex]
[tex]3 + 3 < 3^2[/tex]
[tex]6 < 9[/tex]