Answer:
brad paid more
Step-by-step explanation:
15/12=1.25
and 12/8=1.50
so brad paid more on pizza
There are four cards numbered 1 through 4. The number 2 card is chosen randomly and not replaced. Find the probability of choosing a second card that is the number 3.
Answer:
1/3
Step-by-step explanation:
since number 2 card was not replaced, we have;
probability of picking a second card, 3;
let S be number of sample space
n(S)= 4
n(3)= 1
Pr(3/2)= 1/3
(because since one was already chosen and n, the sample space would reduce)
please help!! like ASAP
Answer:
A
Step-by-step explanation:
PLEASE HELP!!
Use the equation 13= 1 3 d = t to figure out how long will it take Noah to walk 6 miles. It will take Noah _____ hours.
Answer:
76
Step-by-step explanation:
okay so 13=13 d = t
13×d = t
13×6 = 76
The volume of Pyramid A is 704 cm3 and the volume of Pyramid B is 297 cm3. If the pyramids are similar and the surface area of Pyramid B is 153 cm2, what is the the surface area of Pyramid A?
Answer:
272 cm²
Step-by-step explanation:
Step 1
We have to find the scale factor
When given the volume of two solids, the formula for the scale factor is
V1/V2 = (Scale factor)³
The volume of Pyramid A is 704 cm³ and the volume of Pyramid B is 297 cm³
V1 = Pyramid A
V2 = Pyramid B
704/297 = (scale factor)³
We simplify the left hand side to simplest fraction
The greatest common factor of 704 and 297 = 11
704÷11/297÷11 = (scale factor)³
64/27 = (scale factor)³
We cube root both sides
cube root(scale factor)³ = cube root (64/27)
scale factor = (4/3)
Step 2
(Scale factor)² = S1/S2
S1 = Surface area of Pyramid A =?
S2 = Surface area of Pyramid B = 153 cm²
Hence,
(4/3)² = S1/153
16/9 = S1/153
Cross Multiply
S1 × 9 = 16 × 153
S1 = 16 × 153/9
S1 = 272 cm²
Therefore, the Surface Area of Pyramid A = 272 cm²
Plz help me no links or fake I will report
Answer:
y=6x-38
Step-by-step explanation:
That's the answer for C
Grace has $15 in her bank account. She starts
saving $5 each week. Jose has $5 in his account
and is saving $10 each week. What is the slope of the line that represents Grace's bank account?
Answer:
[tex]\frac{5}{1}[/tex] or 5
Step-by-step explanation:
Using the data provided we would create the following equation to calculate Grace's bank account using the variable x to represent the number of weeks.
f(x) = 5x + 15
The slope of a function in such a function would be the value of that is being multiplied by x. The numerator would be the numberof units it is rising in a graph while the denominator represents the number of units it is moving to the right. Since in this scenario, the number is a whole number (5) the denominator is automatically 1. Meaning that the slope is 5 units up for every 1 unit to the right.
ei
Draw
List
UP table with
your good and
Good Stuely habits
cose Study brow
your bad Study habite
Bal Study habits
В
14
b
Answer:
wha- I have no idea what your saying
What are m∠1 and m∠2?
Answer:
Not enough information
??????????????????????
Answer:
Multiply by -2
Step-by-step explanation:
Additive inverse essentially means the counterpart that negates a number. Then, elimination can be used. In this case, the easiest change would be with the terms -4y in the first equation, and -2y in the second equation, since 2 is a factor of 4. So,
3x - 4y = -5
5x - 2y = -6
The goal here is to cancel out the -4y.
(5x - 2y)(-2) = (-6)(-2)
-10 + 4y = 12
3x - 4y = -5
Now it works.
What are the zeros of the quadratic function?
y = x^2 - 2x - 15
Answer:
[tex]x=\frac{1+\sqrt{31}}{2},\:x=\frac{1-\sqrt{31}}{2}[/tex]
Step-by-step explanation:
[tex]-> 0=2x^2-2x-15[/tex]
-zeros means the solution aka x intercept, meaning y=0
[tex]x_{1,\:2}=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:2\left(-15\right)}}{2\cdot \:2}[/tex]
=> according to quadratic formula
[tex]x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
where [tex]ax^2+bx+c=0[/tex]
=> [tex]x_{1,\:2}=\frac{-\left(-2\right)\pm \:2\sqrt{31}}{2\cdot \:2}[/tex]
simplify
[tex]x_1=\frac{-\left(-2\right)+2\sqrt{31}}{2\cdot \:2},\:x_2=\frac{-\left(-2\right)-2\sqrt{31}}{2\cdot \:2}[/tex]
[tex]x=\frac{1+\sqrt{31}}{2},\:x=\frac{1-\sqrt{31}}{2}[/tex]
Cannot simplify farther
which parent function is f(x)=|x|?
Answer: We can see that it has a parabola for its graph, so we can say that f(x) is a quadratic function. This means that f(x) has a parent function of y = x2.
Step-by-step explanation:
(Hope this helped Btw not mine)
Answer:
Absolute value parent function
Step-by-step explanation:
What is the volume of this sphere?
Use a = 3.14 and round your answer to the nearest hundredth.
8 mm
cubic millimeters
Answer:
Volume = 2,143.57 mm³
Step-by-step explanation:
Given:
radius (r) = 8 mm
π = 3.14
Required:
Volume of the sphere
Solution:
Volume of the sphere = ⁴/3πr³
Plug in the values
Volume = ⁴/3 × 3.14 × 8³
= ⁴/3 × 3.14 × 512
= 6,430.72/3
Volume = 2,143.57333
Volume = 2,143.57 mm³ (nearest hundredth)
A sample of Chlorine gas has a volume of 20 L and a pressure of 4 atm. What will the
pressure of the gas be if the volume is decreased to 5 L?
Step-by-step explanation:
[tex]from \: boyle 's \: law \\ P _{1}V _{1} = P _{2} V _{2} \\ (4 \times 20) = (P _{2} \times 5) \\ P _{2} = \frac{(4 \times 20)}{5} \\ P _{2} = 16 \: atm[/tex]
(a) There are 15,000 fleas in a carpet at the start of 2017. Each year, 3% of the fleas who were alive the previous year die and 1500 new fleas are born. Find an expression, in as simple a form as possible for the number of fleas N years after the start of 2017.
Answer:
Step-by-step explanation:
10. Given that the areas of the two rectangles are equal, calculate the
value of x. What is the area of each rectangle?
Answer:1251231
Step-by-step explanation:
find the area of the
parallegram
Answer:
To find the area, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply. The base and height of a parallelogram must be perpendicular.
Step-by-step explanation:
hope it helps
please mark brainliest
Angel says that raising fraction to the power of -1 is the same as finding the reciprocal of the fraction do you agree
Yes, raising fraction as the power to the integer number is same as calculating the reciprocal of the fraction.
According to the question, the simplification method for the raising fraction as the power to the integer number(-1) is same as calculating the reciprocal of the fraction.
Raising power means multiplying that number that many times to get the answer.
What is simplification in fraction?
The word simplification in fraction is the procedure in which complicated expression can be written in a simpler form to make the calculation easy. This method is used to calculated the answers for the unknown quantity.
To learn more about the simplification in fraction from the given link:
brainly.com/question/432678
#SPJ1
Stressed out just help
[tex]\\ \tt\longmapsto 132\pi=A4[/tex]
[tex]\\ \tt\longmapsto A=\dfrac{132\pi}{4}[/tex]
[tex]\\ \tt\longmapsto A=33\pi[/tex]
3) Find the area of the composite figure.
Answer:
356.93sq. cm
Step-by-step explanation:
Area of the composite figure = Area of rectangle + Area of semicircle
Area of rectangle = length * wiidth
Area of rectangle = 14cm * 20cm
Area of rectangle = 280 sq. cm
Area of semicircle = πr²/2
Area of semicircle = 3.14(7²)/2
Area of semicircle = 3.14 * 49/2
Area of semicircle = 76.93 sq. cm
Hence the area of the figure = 280 + 76.93
Hence the area of the figure = 356.93sq. cm
Consider the diagram and angle measurements shown below.
m1 = (x + 14)
m3 = (3y + 7)º
m4 = (5y - 73)
m5 = (3x - 54)
What is m2?
Enter the value that belongs in the
green box.
58
23
у
32
X
O
Answer:
[tex]cos32° = \frac{x}{23} [/tex]
cos32°=Adjacent / hypotenuse
Answer:
x
Step-by-step explanation:
cos32° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{23}[/tex]
Georgia is reading at a rate of 2 pages everything 5 minutes. Which graph below shows the same unite rate?
Answer:
D
Step-by-step explanation:
Answer:
I can't see it bc it's not close enough but since it's (2,5) D should be right. If it's not right, then sorry ;-;
Thanks in advance for your help
Answer:
CA=P+2Q
Step-by-step explanation:
Find the height of the cone. Round to the nearest
hundredths if necessary
Answer:
height of cone is 1.5 2 feet
hope it helps.
giving brainliest
The Earth has diameter of 7,917.5 miles. What is the distance a plane would have to fly if it could fly around the entire equator? USE 3.14 for π and ROUND to the nearest HUNDREDTH.
Answer:
distance or circumference= 2πr
2× 3.14× 3958.75
nb I got the radius by dividing the diameter by two
= 24,869.95
to hundreth = 24900
Find the rate percent per annum at which birr 380 earns birr 128.25 in 7 years and 6 months?
Answer:
A = $4,035.13
Step-by-step explanation:
Given: 380 earns, 128.25 in 7 years and 6 months
To find: The rate percent per annum
Formula: [tex]A = P(1 + rt)[/tex]
Solution: I = A - P = $3,655.13
Equation:
A = P(1 + rt)
First, converting R percent to r a decimal
r = R/100 = 128.25%/100 = 1.2825 per year.
Solving our equation:
A = 380(1 + (1.2825 × 7.5)) = 4035.125
A = $4,035.13
The total amount accrued, principal plus interest, from simple interest on a principal of $380.00 at a rate of 128.25% per year for 7.5 years is $4,035.13.
-10x – 2y = -30
3x + 2y = 9
X=
Answer: x = 3
Step-by-step explanation:
-10x - 2y = -30
3x + 2y =9
use elimination method...
-2y and 2y = 0
-10x = - 30
3x = 9
add together...
-7x = -21
solve...
x= 3
help me asap please
Answer:
Step-by-step explanation:
6^7/6^3
=6^7-3
=6^4
The length of a side and the corresponding height of a triangle are (x+3) cm and (2x-5) cm respectively. Given that thr area of the triangle is 20 cm^2, find the value of x.
Answer: 5
Step-by-step explanation:
Given
The length of a side is [tex]x+3\ cm[/tex]
The height of a triangle is [tex]2x-5\ cm[/tex]
Area of triangle is [tex]20\ cm^2[/tex]
Area of triangle is given by
[tex]\Rightarrow A=\dfrac{1}{2}\times \text{base}\times \text{height}[/tex]
[tex]\Rightarrow A=\dfrac{1}{2}\times (x+3)\times (2x-5)\\\\\Rightarrow 40=(x+3)\times (2x-5)\\\Rightarrow 2x^2+x-55=0\\\\\Rightarrow x=\dfrac{-1\pm \sqrt{1^2-4(2)(-55)}}{2(2)}\\\\\Rightarrow x=\dfrac{-1\pm 21}{4}\\\\\Rightarrow x=-5.5,5[/tex]
Neglecting negative value
Therefore, the value of x is 5.
please help it’s a timed test. i’ll mark u branliest. find the measure of each lettered angle
Answer:
d = 162
a = 18
e = 144
g = 78
b = 18
s = 162
h = 84
e = 81
Step-by-step explanation:
Trust