Answer:
1: Rhombus
2: Square
3: Rectangle
4: Trapezoid (isosceles trapezoid to be exact)
Answer:
1. convex
2. square
3. rectangle
4. trapezoid
Step-by-step explanation:
A. 30
B. 6
C.32
D.22
Answer:
D. 22
Step-by-step explanation:
Let O be the origin, then we can use the Pythagoras Theorem to obtain:
[tex]|AB|^2=|AO|^2+|OB|^2[/tex]
This implies that;
[tex]|AB|^2=14^2+16^2[/tex]
[tex]|AB|^2=196+256[/tex]
[tex]|AB|^2=452[/tex]
Take positive square root to get:
[tex]|AB|=\sqrt{452}[/tex]
[tex]|AB|=\sqrt{113}[/tex]
[tex]|AB|=21.26029163[/tex]
We round to the nearest whole number to get
[tex]|AB|=21[/tex] units
The closes is 22
(3z+1)(4z+2) simplify
You can FOIL (First, Outside, Inside, Last)
(3z+1)(4z+2)
First
(3z+1)(4z+2)
3z * 4z
[tex]12z^{2}[/tex]
Outside
(3z+1)(4z+2)
3z * 2
6z
Inside
(3z+1)(4z+2)
4z * 1
4z
Last
(3z+1)(4z+2)
2*1
2
Combine all the products of FOIL together
[tex]12z^{2}[/tex] + 6z + 4z + 2
Combine like terms
[tex]12z^{2}[/tex] + 10z + 2
Hope this helped!
~Just a girl in love with Shawn Mendes
The value of 34 + 6 ⋅ 5 = ___.
Numerical Answers Expected
Your answer would be 64. To find this, you would follow PEMDAS, and multiply 6*5. You would then get 30. From there, you would add 30 to 34, getting 65. Hope this helped! Please mark brainliest! Thank you v much! :)
Answer:
64
Step-by-step explanation:
34+6.5=30+34=64:)
The surface area of a plastic ball is 196 pi. A sponge ball has a radius twice that of the plastic ball. What is the surface area of the sponge ball?
A. 9,604 pi
B. 993 pi
C. 784 pi
D. 546 pi
Explain your answer and please show all work.
Answer:
Option C. [tex]784\pi\ units^{2}[/tex]
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared
Let
z-----> the scale factor
x----> surface area of the sponge ball
y----> surface area of a plastic ball
[tex]z^{2}=\frac{x}{y}[/tex]
we have
[tex]z=2[/tex]
[tex]y=196\pi\ units^{2}[/tex]
substitute and solve for x
[tex]2^{2}=\frac{x}{196\pi}[/tex]
[tex]x=4*(196\pi)=784\pi\ units^{2}[/tex]
78 * 40
Show your work because I need to figure out how to do multiplication like this the long way thanks!
Answer:
3120
Step-by-step explanation:
step 1:multiply 8 with 0 and 7 with 0
step 2:add a 0 in the end and multiply 8 with 4 . you get 32. take 2 and carry over 3. multiply 7 with 4. you get 28 . add 3 you get 31. now add. you get 3120
Answer:
3120
Explanation:
Step 1: 0 multiply by 8 give 0
Step 2: 0 multiply by 7 give 0
Step 3: put the number 0 in the right side
Step 4: 4 multiply by 8 give 32
Step 5: add the number 3 to the answer we are going to get for 4 multiply by 7 which is 28+3=31
can someone show me how to do this step by step so i can better understand it in the future? it deals with area, and math isn't my strong subject. thank you!!
The figure is separated into triangles.
The triangle has a base of 8 inches and a hypotenuse of 10 inches.
Using the Pythagorean theorem solve for the height of the triangle:
10^2 = 8^2 + x^2
100 = 64 + x^2
x^2 = 100-64
x^2 = 36
x = √36
x = 6
The height of the triangle is the width of the rectangle and the length of the rectangle is 2 triangle bases ( 8 * 2 = 16)
Area of a rectangle is L x W = 6 x 16 = 96 square inches.
If a 4 × 16 rectangle has the same area as a square, what is the length of a side of the square?
8 units
First, find the area of the 4 by 16 rectangle. 4 times 16 is 64, so that is the area.
The area of a square is calculated with A = S^2, where A is the area and S is the side length.
So, set 64 to be the area and solve for S. 64 = S^2
The opposite of squaring something is finding the square root. So, find the square root of both sides.
square root of 64 = S
Now, what is the square root of 64? Well, what number when multiplied by itself equals 64? There are actually two possibilities here: -8 and 8. However, -8 cannot be the answer since distance cannot be negative, so 8 is the length of the side.
What would be the appropriate units and intervals to use along the x- and y-axes
X axes are supposed to be positive and the y is negative.
Louise measured the perimeter of her rectangular scrapbook to be 152 cm. If the scrapbook is 42 cm wide, how long is the scrapbook?
A.
76 cm
B.
34 cm
C.
32 cm
D.
68 cm
Answer:
B. 34
Step-by-step explanation:
Perimeter= 42+42+x+x
First add the 42 together
42+42 = 84
Then subtract the number away because this was added to the total
152 - 84 = 68
68 is not your missing number
Dividing 68 by 2 which gives you 34
So,
Perimeter = 42+42+34+34 = 152
Harriet calculated 27 divided 4 = 6.75 how can you find 270 divided 4 without dividing
ANSWER
Rewrite and make substitution.
EXPLANATION
Since Harriet calculated 27 divided 4 and had 6.75.
This means that:
[tex] \frac{27}{4} = 6.75[/tex]
Now we want to find
[tex] \frac{270}{4} [/tex]
without divide.
Therefore we need to rewrite the expression so in terms of
[tex] \frac{27}{4} [/tex]
so that we can substitute.
This will give us;
[tex] \frac{270}{4} = \frac{27}{4} \times 10[/tex]
This implies that,
[tex]\frac{270}{4} = 6.75 \times 10[/tex]
[tex]\frac{270}{4} = 67.5[/tex]
If the price of upholstery fabric is $12.49 per yard, how much will 16 yards cost? A. $201.04 B. $199.94 C. $199.84 D. $189.84
Answer:
c
Step-by-step explanation:
16X12.49=199.84
For this case we can raise a rule of three:
$ 12.49 ---------------> 1 yard
x -------------------------> 16 yards
Where the variable "x" represents the cost of the 16 yards.
[tex]x = \frac {16 * 12.49} {1}\\x = 199.84[/tex]
Thus, the cost of the 16 yards will be 199.84 dollars.
Answer:
Option C
Which expression is equivalent to
2
3
(3x + 9y) +
1
2
(4x - 2y)?
A) x + 4y
Eliminate
B) 8x - y
C) 4x + 5y
D) 2x + 5y
Answer:
C) 4x + 5yStep-by-step explanation:
[tex]\dfrac{2}{3}(3x+9y)+\dfrac{1}{2}(4x-2y)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=\left(\dfrac{2}{3\!\!\!\!\diagup_1}\right)(3\!\!\!\!\diagup^1x})+\left(\dfrac{2}{3\!\!\!\!\diagup_1}\right)(9\!\!\!\!\diagup^3y})+\left(\dfrac{1}{2\!\!\!\!\diagup_1}\right)(4\!\!\!\!\diagup^2x})+\left(\dfrac{1}{2\!\!\!\!\diagup_1}\right)(-2\!\!\!\!\diagup^1y})\\\\=2x+(2)(3y)+2x-y=2x+6y+2x-y\qquad\text{combine like terms}\\\\=(2x+2x)+(6y-y)=4x+5y[/tex]
What is the mode for the data set? 59, 57, 56, 50, 58, 51, 54, 59, 55, 52, 53.
Mode means the number that appears most often in the data. Below I provided a tally of how many each of the numbers appear
59: twice
57: once
56: once
50: once
58: once
51: once
54: once
59: once
55: once
52; once
53: once
As you can see 59 appears the most often, being listed twice in the data set, and is therefore the mode
Hope this helped!
Answer:
your answer would be 59 scenice it goes twice i hope this helps have a great day
Step-by-step explanation:
What banking service would be the most beneficial for a customer who just obtained a debit card?
0% financing
no ATM fees
$25 yearly fees
no overdraft protection
The most beneficial banking service for a customer with a new debit card would be no ATM fees, as this would save money on transactions, which is especially important given that banks tend to charge for non-interest income such as ATM and overdraft fees.
For a customer who just obtained a debit card, the most beneficial banking service would be no ATM fees. Debit cards give users the ability to access their funds through an ATM. Considering banks are profit-oriented and look to maximize non-interest income through various fees as described, ATM fees can be a frequent and unnecessary expense. ATM fees average $2.97 per transaction and can quickly accumulate, especially if withdrawals are made at out-of-network ATMs, which add even more to the cost. Therefore, selecting a banking service with no ATM fees would save the cardholder potential costs associated with accessing their money.
No overdraft protection would mean the cardholder could be charged substantial overdraft fees if they were to spend more than the balance in their checking account. Given that these fees can be very high, it's better to either have overdraft protection or manage the account carefully to avoid overdrafting. On the other hand, a $25 yearly fee is a fixed cost and might be worth it if the benefits provided surpass the fee, but it is generally an additional expense that can be avoided with careful account selection. Lastly, 0% financing is typically associated with credit cards rather than debit cards and the quoted 'introductory' rates can be misleading, often coming with hidden fees and high interest rates after the introductory period ends.
Find the area of a regular pentagon with an apothem of 6 inches and a side length of 8.7 inches. Round to the nearest tenth.
The area of the pentagon is 130.5 sq.inches
What is the area of a pentagon?Apothem is the line that extends from the pentagon's center to a side and makes a 90° right angle with the side.
The basic formula for calculating the area of a regular pentagon is Area of pentagon = 1/2 p a, where p denotes the pentagon's perimeter and a denotes its apothem.
perimeter = 5 * 8.7 = 43.5
a = 6
area = 1/2 * 43.5 * 6 = 130.5
Therefore, The area of the pentagon is 130.5 sq.inches
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Amy collected data to determine how many minutes it takes each member of her freshman track team to run five miles. Identify the striking deviation in her data.
A) 25-30 mins
B) 35-40 mins
C) 45-50 mins
D) 50-60 mins
Consider a striking deviation as an outlier (Something that stands out in a pattern, EX: 2, 3, 4, 4, 4, 5, 5, 10 where the outlier would be 10.) Because there is a piece of data at 25-30 minutes that deviates (Or, separates, in a way), it would be considered an outlier (Or, a Striking deviation). Using this information, we can conclude that the answer would be A: 25-30 minutes.
Which of the following is a solution to tanx+sqrt3=0?
Answer:
x=2π/3+π n
Step-by-step explanation:
Solve the trigonometric equation by isolating the function and then taking the inverse. Use the period to find the full set of all solutions.
The solution to tan X + √(3) = 0 is option D)300°.
What are trigonometric identities?Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.
Given function;
tan X + √(3) = 0
Solving;
tan X = -√(3)
tan X = -(tan 60) = 300 degrees (beacuse of negative)
Here, the tangent function is posittive in the first and the third quadrants.
The solution to tan X + √(3) = 0 is option D)300°.
The remaining question is
'Which of the following is a solution to tanx+sqrt3=0?
A)60°
B)150°
C)240°
D)300°'
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Will give brainliest!!
Answer:
[tex]r=\frac{9\cos \theta}{\sin^2 \theta}[/tex]
Step-by-step explanation:
The given equation in rectangular coordinates is;
[tex]y^2=9x[/tex]
We use the relation;
[tex]x=r\cos \theta[/tex]
and
[tex]y=r \sin \theta[/tex]
This implies that;
[tex](r \sin \theta)^2=9(r \cos \theta)[/tex]
[tex]r^2 \sin^2 \theta=9r \cos \theta[/tex]
Divide through by r to get;
[tex]r \sin^2 \theta=9\cos \theta[/tex]
Divide both sides by [tex]\sin^2 \theta[/tex]
[tex]r=\frac{9\cos \theta}{\sin^2 \theta}[/tex]
Find the seventh term of the following sequence? 1.5, 3, 6, ...
A. 96
B. 28
C. 18
Answer:
Option A.
Step-by-step explanation:
The given sequence is 1.5, 3, 6............
We will check first whether the the given sequence is arithmetic or geometric.
For arithmetic sequence
[tex]a_{2}-a_{1}=3-1.5=1.5[/tex]
[tex]a_{3}-a_{2}=6-3=3[/tex]
1.5 ≠ 3, therefore, the given sequence is not an arithmetic sequence.
For geometric sequence
[tex]\frac{a_{2} }{a_{1} }=\frac{3}{1.5}=2[/tex]
[tex]\frac{a_{3} }{a_{2} }=\frac{6}{3}=2[/tex]
2 = 2, therefore, sequence is geometric.
For geometric sequence explicit formula is defined as
[tex]a_{n}=a_{1}(r)^{n-1}[/tex]
[tex]a_{7}=1.5(r)^{7-1}[/tex]
= [tex]1.5(2)^{6}=96[/tex]
Therefore, Option A. is the answer.
Answer:
A, 96 have an amazing day!!!
Step-by-step explanation:
The ordered pair (-3,0) is a solution of which system ? Help needed !!! 10 points.
So what I would do is plug in the point into each system:
#1:
y > 0 (-3,0) since y = 0, plug in 0 for y
0 > 0 This can't be true because they are = to each other, so you would need to have a sign of either ≤ or ≥ (less/greater than or equal to) for the point to be a solution to the system
#2 is the same "0 < 0" can't be true
#3
0 ≤ 0 this is true
y > x + 9 Plug in the point (-3,0)
0 > -3 + 9 Simplify
0 > 6 This is false because 0 is not greater than 6
#4
0 ≥ 0 This is true
0 < -3 + 9
0 < 6 This is true because 0 is less than 6
----> 4th option is your answer
he Earth completely rotates on its axis once every 24 hours.
A) How long does it take for it to rotate 290 degrees?
B) How long does it take to rotate 7π radians?
C) The diameter of the Earth is approximately 7920 miles. How far will a point on the equator rotate in 2 hours?
Show all work. Give answers to the nearest hundredth. Include the units in your response.
Answer:
A)
58/3 = 19.33 hours
B)
84.00 hours
C)
2074.29 miles
Step-by-step explanation:
Under the assumption the earth is a perfect circle, then in a complete rotation ( 24 hours) the earth will rotate through 360 degrees or 2π radians.
A)
In one day or 24 hours the earth rotates through 360 degrees. We are required to determine the duration it takes to rotate through 290 degrees. Let x be the duration it takes the earth to rotate through 290 degrees, then the following proportions hold;
(24/360) = (x/290)
solving for x;
x = (24/360) * 290 = 58/3 = 19.33 hours
B)
In 24 hours the earth rotates through an angle of 2π radians. We are required to determine the duration it will takes the Earth to rotate through 7π radians. Let x be the duration it takes the earth to rotate through 7π radians, then the following proportions hold;
(24/2π radians) = (x/7π radians)
Solving for x;
x = (24/2π radians)*7π radians = 84 hours
C)
If the diameter of the earth is 7920 miles, then in a day or 24 hours a point on the equator will rotate through a distance equal to the circumference of the Earth. Using the formula for the circumference of a circle;
circumference = 2*π*R = π*D
= 7920*3.142
= 24891.43 miles
Therefore a point on the equator covers a distance of 24891.43 miles in 24 hours. This will imply that the speed of the earth is approximately;
(24891.43miles)/(24 hours) = 1037.14 miles/hr
The distance covered by the point in 2 hours will thus be;
1037.14 * 2 = 2074.29 miles
A drug trial is testing the effectiveness of two drugs. If 80 patients are given Drug A, 10 patients are given Drug B, and 20 patients are given a placebo, what is the probability that a patient will NOT be given a placebo?
Answer:
The answer is 9/11.
Step-by-step explanation:
To find the answer you'd first add up how many patients you have:
80+10+20 = 110.
Now find out that how many patients are taking a real drug, which is represented by 80+10 = 90.
So, the probability of a patient NOT getting a placebo is 90/110
Simplified would be 9/11
Thus the answer is 9/11....
Find the missing factor.
5y2 + 4y - 1 = (5y - 1)(
)
Answer:
(y + 1)
Step-by-step explanation:
Given
5y² + 4y - 1
To factorise the quadratic
Consider the factors of the product of the coefficient of the y² term and the constant term which sum to give the coefficient of the y- term
product = 5 × - 1 = - 5 and sum = + 4
The factors are + 5 and - 1
Use the factors to split the y- term
5y² + 5y - y - 1 ( factor the first/second and third/fourth terms )
= 5y(y + 1) - 1(y + 1) ← factor out (y + 1) from each term
= (y + 1)(5y - 1)
What is the sum of the geometric sequence −4, 24, −144, ... if there are 6 terms?
Answer:
-6718464
Step-by-step explanation:
-4x-6=24
24x-6=-144
and keep on doing times -6 6 more times
Answer: The sum is 25220
Step-by-step explanation:
1) -4
2) -4*-6 =24
3) 24*6 = 144
4) 114*-6 = -864
5) -864*6 = -5184
6) -5184*-6= 31104
The sum is: 25220
A bicycle tire makes 40 full revolutions while traveling from where Scott is standing to where Steve is standing.
If the tire has a diameter of 20 inches, what is the approximate distance between Scott and Steve
Answer:approximatly 800 inches is the distance between Scott and Steve
Step-by-step explanation: 40 revolutions * 20 inches
The approximate distance between Scott and Steve is 2513.27 inches.
What is an expression?In mathematics, expression is defined as the relationship of numbers, variables, and functions using mathematical signs such as addition, subtraction, multiplication, and division.
Each revolution of the bicycle tire covers a distance equal to the circumference of the tire, which is equal to pi times the diameter of the tire.
The distance travelled by the bicycle tire for 40 full revolutions is:
Distance = 40 x π x 20 inches
Distance ≈ 2513.27 inches
Therefore, the approximate distance between Scott and Steve is 2513.27 inches.
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4. I need help with question in the attached picture!
ANSWER
D. 13
EXPLANATION
We have
[tex]f(x) = \frac{2x + 1}{x - 4} [/tex]
To find
[tex] {f}^{ - 1} (3)[/tex]
means we want to find an x-value whose image is 3.
[tex]\frac{2x + 1}{x - 4} = 3[/tex]
We cross multiply,
[tex]2x + 1 = 3(x - 4)[/tex]
Expand:
[tex]2x + 1 = 3x - 12[/tex]
Combine like terms,
[tex]3x - 2x = 12 + 1[/tex]
[tex]x = 13[/tex]
[tex] \therefore{f}^{ - 1} (3)= 13[/tex]
Answer:
Option D is correct.
Step-by-step explanation:
[tex]f(x)= \frac{2x+1}{x-4} \,\,find \,\,value\,\,of\,\, f^{-1}(3)[/tex]
We know that f(a) =b ⇔ f^-1 (b) =a
Using this,
We are given [tex]f^{-1}(3)=x => f(x)=3[/tex]
and [tex]f(x)= \frac{2x+2}{x-4}[/tex]
putting value of f(x)
[tex]3= \frac{2x+1}{x-4}\\3(x-4) = 2x+1\\3x-12 = 2x+1\\Adding\,\,like\,\,terms\,\,\\3x-2x = 12+1\\x=13\\So, f^{-1}(3) = 13[/tex]
Option D is correct.
given 3 is a zero of the polynomial 2x^3-x^3-13x-6. find its other zeroes
ANSWER
[tex]p(x) =( x - 3)(2{x} + 1)(x + 2)[/tex]
EXPLANATION
The given polynomial is
[tex]2 {x}^{3} - {x}^{2} - 13x - 6[/tex]
If 3 is a root of this polynomial, then
[tex]x - 3[/tex]
is a factor.
We use long division to obtain the quotient as shown in the attachment.
We can the factor the polynomial as:
[tex]p(x) =( x - 3)(2{x}^{2} + 5x + 2)[/tex]
The complete factored form is:
[tex]p(x) =( x - 3)(2{x} + 1)(x + 2)[/tex]
If employees who make more money pay a higher percentage of their income to the government, this is known as____?
Answer:
Income tax
Step-by-step explanation:
The more money someone earns, the higher their income, and the more government expects them to pay in taxes.
If ON= 5x - 7, LM = 4x+ 4, NM = x -7, and OL =3y-4, find the values of c and y for which LMNO MUST BE a parallelogram.
Answer:
x=11, y=8/3
Step-by-step explanation:
Consider quadrilateral LMNO. If this quadrilateral MUST BE a parallelogram, then
LM=NO
and
LO=MN
Thus,
[tex]\left\{\begin{array}{l}4x+4=5x-7\\ \\x-7=3y-4\end{array}\right.[/tex]
Solve this system of two equations. From the first equation:
[tex]4x-5x=-7-4\\ \\-x=-11\\ \\x=11[/tex]
Substitute it into the second equation:
[tex]11-7=3y-4\\ \\3y-4=4\\ \\3y=4+4\\ \\3y=8\\ \\y=\dfrac{8}{3}[/tex]
find the quotient. simplify if possible q7÷q26q7÷q26
[tex]\bf q^7\div q^{26}q^7\div q^{26}\implies \cfrac{q^7}{1}\div \cfrac{q^{26}q^7}{1}\div \cfrac{q^{26}}{1}\implies \cfrac{\begin{matrix} q^7 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} }{1}\cdot \cfrac{1}{q^{26}~~\begin{matrix} q^7 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} }\cdot \cfrac{1}{q^{26}} \\\\\\ \cfrac{1}{q^{26}q^{26}}\implies \cfrac{1}{q^{26+26}}\implies \cfrac{1}{q^{52}}\implies q^{-52}[/tex]