Answer:
9
Step-by-step explanation:
US_
Diagram NOT
accurately draw
(x + 1)cm
(3 - x) cm
(2x + 5) cm
The diagram shows a cuboid of volume V cm3
(a) Show that V = 15 + 16x - x (squared) - 2x (cubed)
Answer:
Step-by-step explanation:
Length of the cuboid = ((2x + 5) cm
Width of the cuboid = (3 - x) cm
Height of the cuboid = (2x + 5) cm
Since, volume of the cuboid = Length × Width × Height
= (2x + 5)(3 - x)(x + 1)
= [2x(3 - x) + 5(3 - x)](x + 1)
= (6x - 2x² + 15 - 5x)(x + 1)
= (-2x² + x + 15)(x + 1)
= x(-2x² + x + 15) + 1(-2x² + x + 15)
= -2x³ + x² + 15x - 2x² + x + 15
= -2x³ - x² + 16x + 15
≈ 15 + 16x - x² - 2x³
A grocer wants to mix two kinds of coffee. One kind sells for $1.00 per pound, and the other sells for $2.55 per pound. He wants to mix a total of 28 pounds and sell it for $1.35 per pound. How many pounds of each kind should he use in the new mix? (Round off the answers to the nearest hundredth.)
1/2 + 2/3 + 3/4, as a fraction
Answer:
D
Step-by-step explanation:
6/12+8/12+9/12=23/12=1 11/12
Answer:
D. 1 11/12
Step-by-step explanation:
Let's set up our common denominator first. To do this we need to find a number divisible by 2, 3, and 4.
Multiply 3 by 4 and you'll come out with 12. 12 is divisible by 2.
Now, multiply your fractions by the numbers they need to get the denominator to 12.
1/2 x 6/6 = 6/12
2/3 x 4/4 = 8/12
3/4 x 3/3 = 9/12
Add your numerators.
6 + 8 + 9 = 23.
Your fraction should look like 23/12.
Subtract 12 from 23 and you should get 11. Because 12 equals a whole, we can go ahead and put one.
1 and 11/12.
HELP PLEASE , I NEED THIS DUE IN 10 MINUTES AND IM SO CONFUSED
Answer:
p+37 = 2p-50
87
m<I=124
Step-by-step explanation:
En un examen de matemáticas por cada respuesta correcta se suman 7 puntos, y por cada incorrecta se pierden 9, si el examen tiene 10 preguntas, y se obtuvo una calificación de 6 puntos, ¿Cuántas preguntas correctas e incorrectas se obtuvieron? *
Answer:
tuvo 6 preguntas correcta y 4 incorrectoas
Answer:
fjy jktdkhtdljrludli6fhf.
6itykcj,ydj,y
Step-by-step explanation:
ujf
Find the rule and complete the table
Answer:
In-33
out-58
rule, subtract 4
4x + 5y = -2 . what is the slope show ur work
4x + 5y = -2
-5 -5
4x = -5y - 2
4x/4 = -5y -2/ 4
x = -5/4 y + -1/2
Solve the system of equations below by graphing each line on the coordinate plane provided. Then place a point where the solution of the system occurs. 3x + 2y = 8 x + 2y = 4
find the value of x plz help
Answer:
29 degrees
Step-by-step explanation:
Both angles are the same.
Carlos purchased a bouquet of 20 flowers. In the bouquet, 25% are roses, 40% are daisies, and the rest are carnations. How many carnations are in the bouquet Carlos purchased? PLEASE HURRY
Answer: 7
Step-by-step explanation: 35% of 20 = 7
I hope you do good on your test :)
Answer:
7
Step-by-step explanation:
addd lol
PLZ HELP ILL GIVE U BRAINLIEST
Question 9 (1 point)
(07.03 MC)
What is the solution to the following equation? (1 point)
8(2x - 10) + 18 = 4x + 22
O 1) 4
0 25
3) 7
4) 8
Answer:
7
Step-by-step explanation:
16x-80+18=4x+22
16x-62=4x+22
12x-62=22
12x=84
x=7
Find the area of the hexagon. i will mark brainliest and pls explain.
Answer:
C. 150√3Step-by-step explanation:
Radius of the inscribed circle is the apothem of the hexagon.
Apothem (a) and half of the side (s) make a 30-60-90 right triangle.
The ratio of the legs, as per property of 30-60-90 triangle:
s : a = 1 : √3 ⇒ s : 5√3 = 1 : √3 ⇒ s = 5Half the side is s = 5 units, then side of the hexagon is 10 units.
The area of the hexagon:
A = 1/2Pa, P- perimeter, a- apothemA = 1/2(6*10)*(5√3) = 150√3Correct choice is C
Estimate a 15% tip for a $26.40 restaurant bill
a) $1.50
b) $6.00
c) $8.00
d) $4.00
Answer:
$4.00
Step-by-step explanation:
because 15% of 26.40 is 3.96 which is closest to $4.00
Jake has $500 in his checking account. He wants to spend part of this money on new sneakers, $350 left in his checking account after buying the sneakers.
The question is incomplete:
Jake has $500 in his checking account. He wants to spend part of this money on new sneakers, $350 left in his checking account after buying the sneakers. Whta was the price of the sneakers?
Answer:
The price of the sneakers is $150.
Step-by-step explanation:
In order to find the answer with the information provided, you have to subtract the amount left in Jake's checking account after buying the sneakers from the amount he initially had on the account:
$500-$350=$150
According to this, the answer is that the price of the sneakers was $150.
write an equation of the line that passes through (0 0) and (2 6)
Answer:
y = 3x
Step-by-step explanation:
Slope equation:
y2 - y1
--------
x2 - x1
----------------------------------------------------------------------------------------------------------------
6 - 0 6
m = ----------- = ----- = 3
2 - 0 2
Your slope is 3.
----------------------------------------------------------------------------------------------------------------
Equation:
y = mx + b
Plug in the slope and you get:
y = 3x + b
----------------------------------------------------------------------------------------------------------------
Now to find b, you can use either coordinate point. So I will show you both ways :)
(0,0) (2,6)
0 = 3(0) + b 6 = 3(2) + b
Multiply 0 and 3 Multiply 2 and 3
0 = 0 + b 6 = 6 + b
Subtract 0 to 0 Subtract 6 from 6
0 = b 0 = b
There is no y-intercept
----------------------------------------------------------------------------------------------------------------
Your answer: y = 3x
Hope this helped :)
Can somebody help me with this. Will Mark brainliest.
Answer:
X=reference angle, 8=opposite side, and 11 is the hypoteneuse
Kelly travels 450 miles for work every 3 weeks. How many miles does she travel each week?
Answer:1350
Step-by-step explanation: multiply 450x3
plz help highly appreciated
Answer:
1a. y= -6x+30
1b. y= -6x-22
2a. y= 3x+2
2b. y= -1x+4
Alternate exterior angles are congruent.
Which angle forms a pair of alternate
exterior angles with angle 1?
Answer:
angle 8
Step-by-step explanation:
because they both are alternate exterior angles
Which of the following pairs show(s) triangles that are similar but not congruent?
Answer:
B and C
Step-by-step explanation:
1,000 cm = 0.01 km
Correct or incorrect
Answer:
Correct
Step-by-step explanation:
Answer:
Correct
Step-by-step explanation:
Hope this helps
-8x-10=4x+14 show your work
427 is what percent of 305
Answer:
140.00%
Step-by-step explanation:
Step 1: Percentage Formula = Number1/Number2 x 100
Step 2: plugin the 427 and 305 to the percentage formula and we get 427/305 x 100 = 140%
What is
427
out of
305
as a percentage? = 140.00%
Hope this helped a lot
Plz give brainliest
Let f be differentiable such that f(-2)=3,f(3)=5, f'(-2)=4 and f'(3)=6. Let g be differentiable functions such that g(x)=f^-1 (x) for all x. What is the value of g'(3)
Answer:
[tex]g'(3)=\frac{1}{4}[/tex]
Step-by-step explanation:
There is a rule in calculus that tells us that:
[tex]g'[f(x)]=\frac{1}{f'(x)}[/tex]
In this case, we know that f(-2)=3, therefore:
g'(3)=g'(f(-2))
So, if we used the rule, we would get that:
[tex]g'[f(-2)]=\frac{1}{f'(-2)}[/tex]
we know that f'(-2)=4, so:
[tex]g'[f(-2)]=\frac{1}{4}[/tex]
or:
[tex]g'[3]=\frac{1}{4}[/tex]
I WILL GIVE BRAINLIEST AND A HEART AND 5 STARS!!!
Answer:
A) 180 square feet.
Step-by-step explanation:
The two rectangles are congruent, therefore having the same area.
The area of a rectangle, or any quadrilateral for that matter, is Length x Width.
12 * 4 = 48
There are two, so multiply this number by 2 and you get 96.
The formula for a trapezoid's area is height * 1/2 * (base 1 + base 2)
The height given is 6 feet. The 1st base is 10 feet, and the longer base is 10 + 4 + 4, this equals 18
The formula is now
[tex]6 * \frac{1}{2} (18 + 10)\\6 * \frac{1}{2} (28)\\6* 14\\=84[/tex]
Now in total, 84 + 96 = 180.
B is not the answer, A is.
Lindas aunt zoe charges her a nominal amount for watching her two children aunt zoe charges $2.50 per day plus $1.75 per hour one day linda paid her aunt $14.75 how many hours did aunt zoe watch the children
Answer:
7 hours
Step-by-step explanation:
the function of the earning of Zoe = 2.50 + 1.75h
2.5 = base fixed amount
1.75 varies based on the hours
h = hours
2.50 + 1.75h = 14.75
to solve for h
subtract 2.5 from both sides and then divide by 1.75
14.75 - 2.5 = 1.75h
12.25 = 1.75h
h = 7
You go to the store to buy a Playstation 5 which cost 499 dollars. If you had to
pay San Jose's sales tax which is 9.25%. How would you solve the problem to find
the total cost? *
What is the total cost?*
Answer:
$545.1575
Step-by-step explanation:
Given function:
499,9.25Solve ways:
combine 9.25% of 499 and 499Multiply 9.25 by 0.01:
[tex]9.25%[/tex]·[tex]0.01=0.0925[/tex]Multiply the cost by 0.0925:
[tex]499[/tex]·[tex]0.0925= 46.1575[/tex]Combine 46.1575 by the first value:
[tex]499+ 46.1575= 545.1575[/tex]Therefore, the PlayStation 5 will be a total cost of $545.1575.
If the probability of a cup drink being rasberry flavour is 0.29, what is the probability of a cup drink being cola flavour?
Answer: 0.71
Step-by-step explanation:
Since we have just two flavors, the probability of a cup drink being cola flavour will be calculated below:
P(R) + P(C) = 1
0.29 + P(C) = 1
P(C) = 1 - 0.29
P(C) = 0.71
Therefore, the probability of a cup drink being cola flavour is 0.71.
solve for x in the equation below, show all work
Step-by-step explanation:
(3x-1)(x+1)=3(3x-4+x²)
open the brackets
=3x²+3x-x-1=9x-12+3x²
=3x²+2x-1=9x-12+3x²
collecting like terms
=3x²-3x²+2x-9x=-12+1
=-7x=-11
=x=11/7