Answer:
u be mumu go ask ur father that one
The locations:
A:(-2, 3) B:(4, -6) C:(10, 2) D:(6, 8)
The EVIDENCE:
Quadrilateral Identified:
Area: The evidence:
The quadrilateral is a trapezoid and the area of the quadrilateral is 85.04 square units
How to determine the quadrilateral?The vertices are given as:
A:(-2, 3) B:(4, -6) C:(10, 2) D:(6, 8)
Next, we plot the vertices (see attachment)
From the attached graph, we can see that the quadrilateral is a trapezoid
How to determine the area?From the plot, we have the following features:
Height: AD
Parallel sides: CD and AB
Calculate the lengths using:
[tex]d = \sqrt{(x_2 -x_1)^2 + (y_2 -y_1)^2}[/tex]
So, we have:
[tex]AD = \sqrt{(-2 -6)^2 + (3 -8)^2}[/tex]
[tex]AD = \sqrt{89}[/tex]
[tex]CD = \sqrt{(10 -6)^2 + (2 -8)^2}[/tex]
[tex]CD = \sqrt{52}[/tex]
[tex]AB = \sqrt{(-2 -4)^2 + (3 +6)^2}[/tex]
[tex]AB = \sqrt{117}[/tex]
The area is then calculated as:
Area = 0.5 * (CD + AB) * AD
This gives
Area = 0.5 * (√52 + √117) * √89
Evaluate
Area = 85.04
Hence, the area of the quadrilateral is 85.04 square units
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Which of the following are polynomials?
The equations in options B and D are the polynomials other equations are not polynomial.
What is polynomial?Polynomial is an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).
The exponent of the polynomial should be always a whole number like {0,1,2,3,4,5,6,.........}
Here in the option, only two equations are polynomials that are
(2/3)x²+x+1 and x³+2x+√2
Hence the equations in options B and D are the polynomials other equations are not polynomial.
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A model of a sailing boat is made to the scale
1 : 50, i.e a length of 1 cm on the model
represents 50 centimetres on the real yacht.
If one of the sails on the real yacht has an area
of 5 m² what will be the area of the same sail
on the model?
Answer:
[tex]20cm^2[/tex]
Step-by-step explanation:
We are talking of a linear scale ie 1 cm = 50 cm
So if the real yacht length is 10 meters(10,000 cm), then the model length will be 10000/50 = 200 cm
However, when talking about areas, the scale factor is different. We cannot simply divide 5m by 50
Let's say the sail height is 1 meter and the sail width is 5 meters which will give a sail area of 5 sqm.
The scaled height would be 100/50 = 2cm and scaled width will be 500/50 = 10 cm
So the area of the sail on the model will be 2 x 10 =200 square cm
In short, area of sail on model = (area of sail on real yacht( ÷ (50 x 50)
Since there are 10,000 square cm to 1 square meter we get the answer as 5 x 10000/2500 = 20 square cm
math question on picture
Answer:
28 cm
Step-by-step explanation:
let the unknown side be x , then
using Pythagoras' identity in the right triangle
x² + 21² = 35²
x² + 441 = 1225 ( subtract 441 from both sides )
x² = 784 ( take square root of both sides )
x = [tex]\sqrt{784}[/tex] = 28
Answer:
the unknown side is 28
Step-by-step explanation:
[tex]a^{2} + b^{2} = c^{2} \\c = 35\\a = 21\\21^{2} + b^{2} = 35^{2}\\441 + b^{2} = 1225\\b^{2} = 1225 - 441\\b^{2} = 784\\b = \sqrt{784} \\b = 28[/tex]
please help its a math problem
An iPhone costs $1400 loses 3/8 of its value each year. What is the value of the iPhone after 3 years?
Question 6 options:
$341.80
$546.88
$1398.86
$73.83
Answer:
$341.80
Step-by-step explanation:
Value after 1 year :
1400 x (1 - 3/8)1400 x 5/825 x 7 x 5125 x 7$875Value after 2 years :
875 x 5/84375/8$546.88Value after 3 years :
546.88 x 5/82734.40/8$341.80
5/You spin the spinner
AND flip a coin. Find the
probability of the
compound events. Write
as a fraction and percent.
a) P(1 and tails) =
b) P(even and heads) = (The spinner is 1-5)
Answer:
a) P(1 and tails) = 1/10 = .1
b) P(even and heads) = 1/5 = .2
Step-by-step explanation:
The spinner has 5 outcomes: 1-5.
The coin has 2 outcomes: Heads or Tails.
We want to find the probability of P(1 ∩ T) and P(2,4 ∩ H).
a) P(1 and tails)Spinning the spinner and flipping the coin are independent events; therefore, getting one outcome has no effect on the outcome of another.
For independent events, the multiplication rule is:
P(A and B) = P(A) * P(B)If we use this formula for A, we get that:
P(1 and tails) = P(1) * P(tails)The probability of getting a 1 on the spinner is P(1) = 1/5.
The probability of getting tails on the coin toss is P(tails) = 1/2.
We can now multiply these probabilities together:
P(1 and tails) = 1/5 * 1/2 = 1/10The probability of getting a 1 on the spinner and tails on the coin toss is P(1 and tails) = 1/10 or .1.
b) P(even and heads)There are two even numbers between 1 and 5: 2 and 4.
The probability of getting an even number on the spinner is 2/5.
The probability of getting heads on the coin toss is 1/2.
We can multiply these probabilities together:
P(even and heads) = 2/5 * 1/2 = 2/10 = 1/5The probability of getting an even number on the spinner and heads on the coin toss is P(even and heads) = 1/5 or .2.
Pleeaaaaase help!!!!!!!!!!
Answer:
Step-by-step explanation:
A triangular pyramid has 6 edges, 4 vertices, and 1 base
Find the area of each figure. If necessary, use 3.14 for and round to the nearest hundred.
Answer:
132 m²
Step-by-step explanation:
Split the figure into 2 parts :
Area of TriangleArea of RectangleArea (Triangle)
A = 1/2bhA = 1/2 x (20 - 8 - 6) x (10 - 6)A = 1/2 x 6 x 4A = 3 x 4A = 12 m²Area (Rectangle)
A = bhA = 20 x 6A = 120 m²Area (Figure)
12 + 120132 m²Question 13
2 Points
A farmer has two types of milk, one that is 20% milkfat and one that is 12% milkfat. How much of each is needed to get 20 gallons of 15%
milkfat
An equation is formed of two equal expressions. The amount of 20% milk and 12% milk that is needed to be mixed is 7.5 gallons and 12.5 gallons, respectively.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Let the amount of 20%milk mixed be represented by x, while the amount of 12% milk mixed is represented by y. Therefore, the two-equation can be written as,
x+y=20 gallons
0.20x + 0.12y = (0.15×20)
Solve the first equation for x, therefore,
x = 20 - y
substitute the value of x in the second equation,
0.20(20-y) + 0.12y = 3
4 - 0.2y +0.12y = 3
-0.08y = -1
y = 12.5 gallons
substitute the value of y in the first equation,
x + 12.5 = 20
x = 7.5 gallons
Hence, the amount of 20% milk and 12% milk that is needed to be mixed is 7.5 gallons and 12.5 gallons, respectively.
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. Calculate the area and perimeter of a circle with radius
6cm.
Calculate the length of the diameter in a circle whose
Answer:
113.1cm2
Step-by-step explanation:
looked it up
what’s the answer to this problem , figure out the area and perimeter of this triangle
Answer:
area: 5×27÷2
perimeter:8+27+34
Write the equation of the line that is parallel to x = 3 and passes through the
point (4, -3)
The equation of the line that is parallel to x = 3 and goes through (4, -3) is: x = 4).
What is the Slope of Parallel Lines?The slopes or parallel lines are always the same.
Given the equation of a vertical line, x = 3, the slope is undefined. So also, the slope of the line that is parallel to x = 3 is undefined.
If the line passes through the point (4, -3), it means it intercepts the x-axis at x = 4.
Therefore, the equation of the line that passes through (4, -3) and is parallel to x = 3 is: x = 4.
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Nicole has a loyalty card good for a 18% discount at her local pharmacy. What
number should she multiply the prices on the tags by to find the price she would have
to pay, before tax, in one step?
so let's say the sale price is "P", so Nicole would want to know how much will it be P discounted by 18% of P.
Well, the sale price will just be P or 100% of P, minus 18%, the discounted price will be 100% - 18% = 82%, so the discounted price will be 82% of P.
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{82\% of P}}{\left( \cfrac{82}{100} \right)P}\implies \boxed{0.82}\cdot P\qquad \impliedby \textit{discounted price}[/tex]
In which data set is the mean greater than the median
Answer:
in 2nd figure will mean greater
Answer:
its the 4th one hopes this help
s
Step-by-step explanation:
(geometry)
a trapezoid has an area of 10 square units what scale factor would be required to dilate the trapezoid to have an area of 90 square units
. 9
.6
.3
.1/3
A trapezoid has an area of 10 square units. The scale factor would be 3 to dilate the trapezoid to have an area of 90 square units.
What is the scale factor?The ratio between comparable measurements of an item and a representation of that thing is known as a scale factor.
Let the linear scale factor be k.
The area scale factor is [tex]k^2[/tex]
We'll multiply the old area (10) by the area scale factor ([tex]k^2[/tex] ) to get the area of 90 square units
[tex]10 \times k^2 = 90\\\\k^2 = \frac{90}{10} \\\\k^2 = 9\\\\k = \sqrt{9} \\\\k = 3[/tex]approximately
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dont need to show work at all
Thank you
Answer:
144
Step-by-step explanation:
In a regular decagon like the one shown in the picture each angle is 144 degrees and it all adds up to 1,440. If you want proof search up "angle of a decagon"
Consider the solid obtained by rotating the region bounded by the given curves about the y-axis. Find the volume v of this solid. V =
The solid was obtained by rotating the region bounded by x² = 27y, x = 0, and y = 1 about the y-axis is 42.411 cubic units.
What is integration?It is the reverse of differentiation.
Consider the solid obtained by rotating the region bounded by the given curves about the y-axis.
[tex]\rm x = 3\sqrt{3y} \ or \ x^2 = 27y[/tex]
x = 0, and y = 1
Then the volume of the solid will be
[tex]\rm Volume = \int _{0}^{1} \pi x^2 dy\\\\Volume = \int _{0}^{1} \pi 27y dy\\\\Volume = 27\pi \int _{0}^{1} \ ydy\\\\Volume = 27 \pi [\dfrac{y^2}{2}] _{0}^{1}\\\\[/tex]
[tex]\rm Volume = 13.5 \times \pi \times [y^2] _{0}^{1}\\\\Volume = 13.5 \times \pi \times (1^2 - 0^2)\\\\Volume = 42.411 \ cubic \ units[/tex]
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PLEASE HELP ME!!!!!!!!!!!!!!
Answer:
[tex]|-a| =a[/tex]
Step-by-step explanation:
Is ABC similar to DEF? If so, identify the similarity postulate or theorem that applies.
Answer:
B:Similar :SAS
Step-by-step explanation:
The Angle-Side (SAS) Similarity Theorem states that If an angle of one triangle is congruent to an angle of a second triangle and the lengths of the sides including these angles are proportional, then the triangles are similar.
In the given triangles <B=<E= 40 °
Or,
Hence triangle ABC~ Triangle DEF by SAS similarity theorem.
Give brainliest :)
Option B is correct, by SAS postulate the triangles ABC and DEF are similar.
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .
ABC and DEF are similar triangle as the corresponding angles are congruent and the corresponding sides are in proportion .
If two sides and the included angle in one triangle are congruent to two sides and the included angle in another triangle, then the two triangles are congruent.
Hence, by SAS postulate the triangles ABC and DEF are similar.
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Solve the following system of inequality
x < 3y - 18
Step-by-step explanation:
If you are solving for y :
[tex] \: [/tex]
[tex]x < 3y - 18[/tex]
[tex]x + 18 < 3y[/tex]
[tex] \frac{x + 18}{3} < \frac{3y}{3} [/tex]
[tex]y > \frac{3}{x} + 6[/tex]
Select all the rational numbers.
Answer:
A, C and D
Step-by-step explanation:
Which point is the coordinate of the image of A under the transformation (0,-1 1,0)?
Old coordinate (0,-1)
New coordinate (1,0)
The translation is
(x+1,y+1)Verification
(0+1,-1+1)=(1,0)Image of (0,-1) is (0,1)
Image of (1,0) is (-1,0)
Answer:
(x + 1, y + 1)
Step-by-step explanation:
Translation of x-coordinate :
New - Previous1 - 0+1Rule for x : (x + 1)Translation of y-coordinate :
New - Previous0 - (-1)0 + 1Rule for y: (y + 1)Hence, the points which describes the change :
(x + 1, y + 1)A soccer team is having a car wash. The team spent $55 on supplies. They earned $330, including tips. The team's profit is the amount the team made after paying for supplies. Use a sum of integers to find the team's profit.
There are two cubes, one smaller than the other. The two cubes combined has a volume of 118.125in. Find the side length of each cube if the smaller cube is 2/3 the length of the larger cube.
Step-by-step explanation:
let the big cube side be b
small cube side be s
s = 2/3 * b
bv + sv = 118.125
b^3 + 8/9 b^3= 118.125
17 b^3/8 = 118.125
b^3 = 55.58
b = 3.816in
s = 2.544in
find the product 12 times 2/3
simplify. Your answer completely
Answer:
2/3 X 12 =8
Step-by-step explanation:
2.
-----. X 12 =2 x 12= 24 Which is 24/3 =8
3
the original purchase price of a car is 12,000. Each year, its value depreciates (loses value) by 5%. Three years after its purchase, what is the value of the car?
Answer:
10,200
Step-by-step explanation:
P(1-r)^n
r = decimal form of the interest rate percent
n = amount of years
principal times (1 - decimal form of the interest rate percent) to the (amount of years) power
12000 (1-.05)^3
use PEMDAS
12000 times (.95)^3
12000 times .857375 =
ANSWER:
10288.5
Find the equation of the line shown. y 4 3 2 1 Х -2 -3 4
Answer:
y = 1/2x + 0.5
or
y = 1/2x + 1/2
Step-by-step explanation:
y = mx + b
b is y-intercept:
when x = 0, y = 0.5 (when the line cross the vertical (y) axis of the graph)
the point is (0, 0.5) so b = 0.5
m is slope:
slope = rise / run
rise = 1
run = 2
for every 2 x values, y increase by 1
slope (m) = 1/2
9000 dollars is placed in an account with an annual interest rate of 7.75%. How much will be in the account after 18 years
Answer:
34494.79
Step-by-step explanation:
round it up to the nearest cent
hope this helps
pls mark brainliest
Work out the volume for this prism
[tex]area = 24 \: {cm}^{2} [/tex]
[tex]height = 8 \: cm[/tex]
to find:the volume of the given prism.
solution:[tex]v = area \: of \: cross \: section \times height[/tex]
[tex]v = 24 \times 8[/tex]
[tex]v = 192 \: {cm}^{3} [/tex]
hence, the volume of the prism is 192 cubic centimeters.
Jennifer has more than $960 in her bank account. She wants to gift her brother a laptop worth $540. If she withdraws 60 weekly for her expenses, what is the maximum number of withdrawals she can make to ensure there is enough money in her account to buy the laptop?
Answer:
It would take 10 weeks to buy the laptop so she could cover the price of the laptop and tax.
Step-by-step explanation: