Density per square block means the area:
Area = Length x width = 2 x 2 = 4 square blocks.
Now for density divide the population by the area:
1.5 million people / 4 square blocks = 0.375 million people per square block
0.375 million = 375,000
Solve the following equation for a. Be sure to take into account whether a letter is capitalized or not.
d+a=h
Answer:
do you have an attatchment or guide i can use to answer this?
Step-by-step explanation:
Transposing a,
[tex]d + a = h \\ a = h - d[/tex]
Find the area of a circle with a radius of 5 inches. Round your answer to the nearest hundredth.
please help i’ll give 5 stars
Answer:
78.54 inches squared
Step-by-step explanation:
A=πr^2
π·5^2
Have a good day :)
Determine the area of the composite figure.
Answer:
[tex]110\ in^2[/tex]
Step-by-step explanation:
[tex]1)\ A_1 = b * h_1 = 10 * 8 = 80\ in^2[/tex]
[tex]2)\ A_2 = \frac{b*h_2}{2} = \frac{10*(14-8)}{2} = \frac{10*6}{2} = \frac{60}{2} = 30\ in^2[/tex]
[tex]3)\ A = A_1 + A_2 = 80 + 30\ in^2 = 110\ in^2[/tex]
Which expression is equivalent to 3^7•3^-4
Answer:
3^3 which is = 27
Step-by-step explanation:
When multiplying exponents with the same base, you just add the exponents and keep the same base.
Answer:
3^7 * (1/3)^4 because a^(-n) = (1/a)^n
Step-by-step explanation:
because a^(-n) = (1/a)^n
What is the measure of ZDFE
Answer:
38 degrees
Step-by-step explanation:
angle DFE and angle F are supplementary angles which means they complete each other to 180 degrees
so the measure of DFE is
180 - 142 = 38 degrees
At Happy Pizza, an 8-inch pizza costs $6.00 and a 16-inch pizza costs $14.00. Which pizza is a better deal?
Answer:
8-inch pizza
Step-by-step explanation:
Answer:
A 16-inch pizza is the better deal, because its twice the size of the 8-inch and you would have to buy two to equal a 16-inch, but it would cost more. So a 16-inch would be a better deal.
Step-by-step explanation:
Find the volume of a cone with a diameter of 12 m and a height of 5 m.
A. 60 m3
B. 60 m3
C. 240 / m3
D. 1807 m3
Please help!!! Need fast will mark Brainiest if correct!
Answer:
60[tex]\pi[/tex] m³
Step-by-step explanation:
Use the cone volume formula, V = [tex]\pi[/tex]r²[tex]\frac{h}{3}[/tex]
If the diameter is 12 m, the radius will be 6 m.
Plug in the height and radius into the formula, and solve:
V = [tex]\pi[/tex]r²[tex]\frac{h}{3}[/tex]
V = [tex]\pi[/tex](6²)[tex]\frac{5}{y}[/tex]
V = [tex]\pi[/tex](36)[tex]\frac{5}{3}[/tex]
V = 60[tex]\pi[/tex]
So, the volume of the cone is 60[tex]\pi[/tex] m³
What is the value of the expression? Show your work
Answer:
Option D
Step-by-step explanation:
Equation of the piecewise function,
f(x) = -x² + 2x for x ≤ -3
[tex]2(\frac{1}{3})^{2x}[/tex] for -3 < x < 4
[tex]\frac{2x-5}{x-7}[/tex] for x ≥ 4
For x = -3,
f(x) = -x² + 2x
f(-3) = -(-3)² + 2(-3)
= -9 - 6
= -15
For x = -1
f(x) = [tex]2(\frac{1}{3})^{2x}[/tex]
f(-1) = [tex]2(\frac{1}{3})^{2(-1)}[/tex]
= [tex]2(\frac{1}{3})^{-2}[/tex]
= [tex]2\times 3^2[/tex]
= 18
For x = 4
f(x) = [tex]\frac{2x-5}{x-7}[/tex]
f(4) = [tex]\frac{2(4)-5}{4-7}[/tex]
= [tex]\frac{3}{-3}[/tex]
= -1
Therefore, f(-3) + 2f(-1) + f(4) = -15 + 2(18) - (-1)
= -15 + 36 + 1
= 22
Option D will be the correct option.
The simplest form of *
0.545454545454.........................
Answer:
0,5
Step-by-step explanation:
u just need to shorted it
Jamal scored 62, 75, 76 and 90 on four tests. What does he need to score on the fifth test to have a MEAN of exactly 80?
A.80
B.100
C.93
D.97
Given ABC is an isosceles triangle with AB = BC. If the measure of
A)43°
B)86°
C)94°
D)137°
Answer:
iiiii
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
help please!!!!
x = ___ units
Answer:
x = 20 units
Step-by-step explanation:
∆KJL is a 30° - 60° - 90° triangle which means that side opposite of 30° is x, side opposite of 60° is x√3, and side opposite of 90° is 2x.
Since side opposite of 90° is 40√2 which is 2x and x is the side opposite of 30° (JL).
2x = 40√2 → 2x ÷ 2 = 40√2 ÷ 2 → x = 20√2.
∆JML is a 45° - 45° - 90° triangle which means that sides opposite of 45° are x and 90° is x√2.
Since side JL is also the side opposite of 90° and the sides opposite of 45° are the value x,
20√2 = x√2 → 20√2 ÷ √2 = x√2 ÷ √2 → 20 = x →
x = 20.
hat is the total volume of the cube below?
What is the total volume of the cube below?
64 cu.
512 cu.
125 cu.
27 cu.
5 of 18
Answer:
Other person is right!
Step-by-step explanation:
Mark them as brainliest please!
Can someone please help me?
Answer:
the 1st option is false; there is no 'addition' sign
Step-by-step explanation:
Use words to explain how to solve this equation: (x-10)(x-4)=0
Answer: x = 10 OR x = 4.
Step-by-step explanation: If x = 10 or 4 then the last step of the equation will always be multiplying by 0 which equates to 0 as well.
if x = 10
(10-10)(10-4) -> (0)(6) -> 0 x 6 = 0
if x = 4
(4-10)(4-4) -> (-6)(0) -> -6 x 0 = 0
Answer:
[tex]x = 10 \: and \: 4[/tex]
Step-by-step explanation:
Hope it is helpful....
Suppose a number cube is rolled twice. What is yhe probability that an odd number will show both times?
Answer: 1/6
Step-by-step explanation: Have a blessed day
You roll a standard number cube. What is the probability that you will roll an even number?
Answer:
The probability of rolling an even number would be [tex]\frac{1}{2}[/tex] or 50%.
Step-by-step explanation:
A standard number cube has 6 sides that features numbers 1 to 6 on each side. Since there are three even numbers (2, 4, 6) total on the sides of the number cube, that means the theoretical probability of rolling an even number would be [tex]\frac{3}{6}[/tex], which simplifies to [tex]\frac{1}{2}[/tex] or 50%.
PLEASE HELP FAST! It’s due soon
Answer:
Step-by-step explanation:
Remark
The two angles with x in them are = 90 degrees. That's because this is a right angle triangle.
Equation
x^2 + 10x + 115 = 90 Subtract 90 from both sides
Solution for x
x^2 + 10x + 115 - 90 = 0
x^2 + 10x + 25 = 0
Factor
(x + 5)(x + 5) = 0
x = - 5
Angle C
C = 10x + 115
C = 10*-5 + 115
C = -50 + 115
C = 65
Angle A (which you don't need)
x^2 = (-5)^2
x^2 = A = 25
Find BC
Cos(C) = adjacent / hypotenuse
Cos(65) =0.4226
AC = hypotenuse = 65
0.4226 = adjacent / 44 Multiply both sides by 44
44 * 0.4226 = adjacent
adjacent = 18.6 to three places.
Renee tossed 12 heads when tossing a coin in 10 times what is the experimental property of tossing heads
Answer:
[tex]Pr(Head) = \frac{2}{3}[/tex]
Step-by-step explanation:
The right parameters are:
[tex]Head = 12[/tex]
[tex]Toss = 18[/tex] (not 10)
Required
[tex]Pr(Head)[/tex]
The experimental probability of Head is:
[tex]Pr(Head) = \frac{Head}{Toss}[/tex]
This gives
[tex]Pr(Head) = \frac{12}{18}[/tex]
Simplify
[tex]Pr(Head) = \frac{2}{3}[/tex]
list the numbers from greatest to least 12, -9, -6, 10.
Answer:
12,10,-6,-9
Step-by-step explanation:
Answer:
-9,-6,10,12
Step-by-step explanation:
A cylinder has a height of 9 meters and a radius of 14 meters. What is its volume? Use n
3.14 and round your answer to the nearest hundredth.
Answer:
5,541.77
Step-by-step explanation:
V= πr2h
π · 142 · 9 ≈ 5541.76944
Brainliest?
how can you write [tex]\frac{1}{\sqrt[3]{-12} }[/tex] in [tex]a^{b}[/tex] format without any radicals?
Answer:
[tex]\displaystyle (-12)^{-\frac{1}{3}}[/tex]
General Formulas and Concepts:
Algebra I
Exponential Rule [Rewrite]: [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex] Exponential Rule [Root Rewrite]: [tex]\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}[/tex]Step-by-step explanation:
Step 1: Define
[tex]\displaystyle \frac{1}{\sqrt[3]{-12}}[/tex]
Step 2: Rewrite
Exponential Rule - Root Rewrite: [tex]\displaystyle \frac{1}{(-12)^{\frac{1}{3}}}[/tex]Exponential Rule - Rewrite: [tex]\displaystyle (-12)^{-\frac{1}{3}}[/tex]A rectangular field is twice as long as breath .A path of uniform widthh 2m is running inside the field . If the cost of constructing the path is rs40per sq m is ra 13760 find the area of the field
Answer:
1800 m²
Step-by-step explanation:
Since the cost of constructing the path at rs 40 per sq m is rs 13760, if A is the area of the path then we have
rate × area = cost
area = cost/rate = 13760/40 = 344 m²
Now, let L = length of rectangular field and B = breadth of rectangular field. So, its area is A'= LB. Given that L = 2B, A' = 2B × B = 2B².
Also, since the width of the path is 2 m, the inner field has dimensions L - 2 - 2 = L - 4 as length and B - 2 - 2 = B - 4 as breadth since we subtract 2 m from both ends of the each dimension.
So, the inner area is (L - 4)(B - 4) = (2B - 4)(B - 4) = 2B² - 8B - 4B + 16 = 2B² - 12B + 16.
The area of the rectangular field is thus the inner area plus the area of the uniform path
So, 2B² - 12B + 16 + 344
We equate this the the area of the rectangular field. So,
2B² - 12B + 16 + 344 = 2B²
- 12B + 16 + 344 = 2B² - 2B²
- 12B + 360 = 0
- 12B = -360
B = -360/-12
B = 30 m
Since the area of the field A' = 2B²,
A' = 2(30 m)²
= 2(900 m²)
= 1800 m²
Can someone help me?-?
9514 1404 393
Answer:
M R T V B K
Step-by-step explanation:
From left to right the solutions are ...
__
B: equating expressions for y
-2x = x -3 ⇒ 3 = 3x ⇒ x = 1
R: given
x = -2
V: filling in for y
4x +5(2) = 10 ⇒ x = 0
T: subtracting the first from twice the second
2(3x +y) -(-3x +2y) = 2(0) -9 ⇒ 9x = -9 ⇒ x = -1
K: adding the two equations
(2x +y) +(3x -y) = (7) +(3) ⇒ 5x = 10 ⇒ x = 2
M: equating expressions for y
x -2 = 1/3x -6 ⇒ 2/3x = -4 ⇒ x = -6
__
The solutions in order least to greatest are ...
-6 (M), -2 (R), -1 (T), 0 (V), 1 (B), 2(K)
The passcode is MRTVBK.
_____
Additional comment
In several cases, there are variables and constants on both sides of the equal sign. The solution method is to identify the smallest variable coefficient, and add the opposite of that term. Also added at the same time is the opposite of the constant term on the other side of the equal sign. The net effect is to put the variable on one side and the constant on the other side. Then the equation is divided by the coefficient of the variable.
For example, in the first equation, -2x is the variable term with the smallest coefficient. -3 is the constant on the other side of the equation. To get from the initial expression to the next, we add 2x+3 to both sides of the equation.
1. Curtis is making a triangular frame
with a base of 12 feet and a height of
6 feet. What is the area of the frame?
A 144 ft2
B 36 ft2
C 72 ft2
D 18 ft2
Find the missing angle
A) 61.1
49.40
B) 56.10
D) 59.7
Answer:
D
Step-by-step explanation:
You have the opposite side given and the adjacent side. That means you will use the tangent.
Tan(theta) = opposite / adjacent
opposite = 6
adjacent = 3.5
Tan(theta) = 6 / 3.5
Tan(theta) = 1.714
Tan-1(1.714) = 59.74
when you get an answer over 1 from the division, you know that the angle is over 45 degrees.
What percentage would my grade be if I got a 50% on a project that is worth 20% of my grade and my grade is 87%/B+.
How much would my grade go down?
Answer:
78.3% which would be a C+
Step-by-step explanation:
If the project was worth 20% of your grade and you got 50% on that project, we can multiply the decimal values of these percentages together to know exactly by how much your grade will drop.
0.2 * 0.5 = 0.1 or 10%
Now, we see that your grade will drop 10%. Meaning, that from your 87% you will actually have only 90% of that which is...
87 * 0.90 = 78.3
Therefore, your grade will go down to a 78.3% which would be a C+
Which graph represents the solution set of this inequality?
4+11<-21
hep please
Answer:
It's C :D
Step-by-step explanation:
For the Geometric Sequence where a1= 5/2
and r= 4, the Third term a3 will be
Answer:
a1 =5/2
r=4
a3=ar^3-1
a3=5/2×4^2
a3=5/2×16
a3=5×8
a3=40
HELP ME PLS I NEED HELP!!
Answer: B
Step-by-step explanation: