Answer:
b
Step-by-step explanation:
Work out the area of the trapezium ABDE.
A
В.
7.5 cm
2.5 cm
С
5 cm
E
Answer:
Area = 50 cm²
Step-by-step explanation:
Area of a trapezium ABDE = ½(a + b)h
where,
a = BD = 2.5 cm
b = AE = 7.5 cm
h = DE = ?
We need to find DE ti be able to calculate the area.
DE = CE - CD
DE = CE - 5
Since ∆ACE is similar to ∆BCD, therefore:
AE/BD = CE/CD
Plug in the values
7.5/2.5 = CE/5
Cross multiply
CE*2.5 = 7.5*5
CE*2.5 = 37.5
Divide both side any 2.5
CE = 37.5/2.5
CE = 15
Thus, DE = CE - 5 = 15 - 5
DE = 10
✅Area of trapezium = ½(BD + AE)DE
= ½(2.5 + 7.5)*10
= ½(10)10
= 50 cm²
What 3-dimensional solid has a circular cross section when cut parallel to the base and a rectangular cross section when cut perpendicular to the base? A) cylinder B) sphere C) Triangular Prism D) Square Pyramid
Answer:
Option A ) Cylinder is correct.
Step-by-step explanation:
The important information need to consider is
1. Circular cross section when cut parallel to the base
2. Rectangular cross section when cut perpendicular to the base.
Let's consider each options.
Cylinder would have circular cross section when parallel to base and rectangle when it cut perpendicular to the base.
Yes! The cylinder works.
True or false ??????
Analyze this equation.
8x−5=−1
What is the value of x ?
A. -0.75
B. -0.5
C. 0.5
D. 0.75
Answer:
C) 0.5
Step-by-step explanation:
8x-5=-1
8x=-1+5
8x=4
x=4/8
simplify
x=1/2
1A) Quad ABCD is inscribed in the circle. Find x. *
1B) Using your answer from above, what is angle A? *
Step-by-step explanation:
2x + 9° + 3x + 1° =180° (opposite angles of a cyclic quadrilateral are supplementary)
5x + 10° = 180°
5x = 180° - 10°
5x = 170°
x = 34°
Now
Angle A
= 2 * 34° + 9°
= 77°
Hope it will help :)❤
1 flower has 10 petals how many petals do 5 flowers have?
Answer:
50 :)
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
Leslie has a black and purple marker. She can
use either of them to write on either a white, pink
or yellow sticky note, is this a simple event or compound event?
Answer:
Compound
Step-by-step explanation:
A pounds of apples and b pounds of plums were packed into n boxes. How many pounds of fruit are there in each box?
Answer:
(a + b) / n
Step-by-step explanation:
Pounds of apple in box = a
Pounds of plum in box = b
Number of boxes used in packing = n
The amount fruit in pounds that are in each box :
Total pound of fruits / number of boxes used
Total pounds of fruit = a + b
Number of boxes used = n
Hence, we have ;
(a + b) / n
Bobo and the Bouncing Ball Math Problem
Please help me solve it. There are 3 questions, question 1, 2, and the Einstein problem.
WORTH 20 POINTS!
This doesn’t include the Einstein problem cause I didn’t have that one.
Answer:
1)0.125
2)127.825
Step-by-step explanation:
Which value, to the nearest tenth, is the smallest solution of f(x) = g(x) if f(x) = ln(x + 5) – 1 and g(x) = x3 – 2x + 1?
Answer:
There are two possibilities of determine which solution is the smallest one:
(i) The smallest solution is the value of [tex]x[/tex] has the smallest distance with respect to origin: [tex](x_{2},y_{2}) = (0.18,0)[/tex]
(ii) The smallest solution is the most negative value: [tex](x_{1},y_{1}) = (-1.577,0)[/tex]
Step-by-step explanation:
Let [tex]f(x) = g(x)[/tex], [tex]f(x) = \ln (x+5)-1[/tex] and [tex]g(x) = x^{3}-2\cdot x + 1[/tex], then we have the following implicit equation:
[tex]\ln (x+5)-x^{3}+2\cdot x -2 = 0[/tex] (1)
This equation cannot be solved by analytical means. There are two different strategies to solve this expression: (i) Numerical methods, (ii) Graphical methods. We decide to use the second method:
Let suppose that we use this function [tex]h(x) = \ln (x+5) -x^{3}+2\cdot x - 2[/tex]. By the help of a graphing tool, we find the smallest solution such that [tex]h(x) = 0[/tex]. There are three possible solutions: [tex](x_{1},y_{1}) = (-1.577,0)[/tex], [tex](x_{2},y_{2}) = (0.18,0)[/tex], [tex](x_{3}, y_{3}) = (1.376, 0)[/tex]
There are two possibilities of determine which solution is the smallest one:
(i) The smallest solution is the value of [tex]x[/tex] has the smallest distance with respect to origin: [tex](x_{2},y_{2}) = (0.18,0)[/tex]
(ii) The smallest solution is the most negative value: [tex](x_{1},y_{1}) = (-1.577,0)[/tex]
The smallest smallest solution of f(x) = g(x) will be [tex]\rm \left(-1.577,0.223\right)[/tex]
What exactly is a function?A function is a statement, rule, or law that specifies the connection between two variables. Functions are common in mathematics and are required for the formulation of physical connections.
Given functions;
f(x) = ln(x + 5) – 1
g(x) = x³ – 2x + 1
After graphing both the function, we get the three solutions of the given equation,
[tex]\rm \left(-1.577,0.223\right)[/tex]
[tex]\left(0.18,0.645\right)[/tex]
[tex]\left(1.376,0.853\right)[/tex]
Hence,the smallest smallest solution of f(x) = g(x) will be [tex]\rm \left(-1.577,0.223\right)[/tex]
To learn more about the function, refer to:
https://brainly.com/question/5245372
#SPJ5
Find the value of x
Answer:
x=23
Step-by-step explanation:
set them equal to each other since its not same sides
these are alternative exterior
8x-77=3x=38
5x=115
x=23
Answer:
23
Step-by-step explanation:
8x-77=3x+38 > 8x=3x+115 > 5x=115 > x=23
Please answer these questions for me I wanna enjoy being outside today.
Answer:
1. y = 3x - 3
2. y = -2 1/2x + 10
10/-4 = -2 1/2 is the slope
3. undefined
4. y = x - 4
5. y = x - 5
6. 6x + 2y = 4 and -3y = 9x + 12
7. -3x + y = 7, y = 3x + 1, and y =3x
8. y = 2x + 5
9. y = 1/4x - 4
Jackson invested $140 in an account paying an interest rate of 3 3/4% compounded
quarterly. Lucy invested $140 in an account paying an interest rate of 3 1/2%
compounded daily. After 10 years, how much more money would Jackson have in his
account than Lucy, to the nearest dollar?
Answer: $5
Step-by-step explanation:
if there 3 cats and 3 dogs how mush would be together
Answer:
6
Step-by-step explanation:
3+3 = 6
Answer:
There is 1 cat for each dog so the ratio would be 1:1 together.
Step-by-step explanation:
This means there are twice as many cats as dogs, or half as ... The ratio of 6:3 reduces to the ratio of 1:1
Solve this inequality for y.
- 3y + 12 26
Answer:
-2^5
Step-by-step explanation:
hope it helped. im not sure..
In 2011 a sweatshirt cost $20 and in 2012 the price increase to 25 what is the percent change
Henry and Gavin win some money and share it in the ratio 5:3. Henry gets £14 more than Gavin. How much did they get altogether?
Answer:
Total amount = £56
Step-by-step explanation:
Let Henry and Gavin be H & G respectively.
Let Henry's and Gavin's share be x.
Given the following data;
Ratio of H to G = 5:3
Henry = G + £14
Translating the word problem into an algebraic expression, we have;
5x = 3x + 14
5x - 3x = 14
2x = 14
x = 14/2
x = £7
Next, we determine the amount earned by Gavin;
Gavin = 3x
Gavin = 3*7
Gavin = £21
For Henry;
Henry = G + £14
Henry = £21 + £14
Henry = £35
Now, to find the total amount earned by Henry and Gavin.
Total amount = H + G
Total amount = 35 + 21
Total amount = £56
Find the greatest common factor of 10, 3, and 6.
Answer:10
Step-by-step explanation:u have to see how many time can a number go into it
DO NOT GIVE ME A PDF!!!!
Add the polynomials: (4x + 5) + (3x + 2) + (7x - 3).
a.84x - 30
b.14x + 10
c.18x
d.14x + 4
4x+3x+7x+5+2-3
14x+7-3
14x+4
14x + 10 (DO NOT ADD IT TOGETHER THAT'S JUST THE ANSWER I DID THIS IN SCHOOL 2-DAY)
Step-by-step explanation:
(4x+5) +(3x+2) + (7x-3)
Add 4x+3x+7x
14x
Add 5+2+3
10
Please I need help with this it’s due at 3:30
Answer:
The y intercept is added to the new parent function.
Step-by-step explanation:
The parent function changed because the y intercept (SLOPE) was added into the new parent function. In order to prove that the change took place with the y intercept being added to the function, you can use any value from 2 and up.
Completion of substitution for X:
Original parent function: Plug in 2 for x
(2)^3 = 8
Completion of substitution for X with NEW parent function: plug in 2 for x
(2)^3 + 2 = 10
Find the quotient.
(12x^2 - 10x-12) = (3x + 2)
2x-3
4x + 6
3х + 2
4x - 6
(12x^2-10x-12)÷(3x+2)
=(2x-3)(3x+2)÷(3x+2)
=(2x-3)
Step-by-step explanation:
Answer would be (2x-3)
Find the quotient. Write the remainder as a decimal.
72)99=
Answer:
Step-by-step explanation:
Quotient is 1.
Remainder = 27.
x increase by 10 is equal to 33
Answer:
x=23
Step-by-step explanation:
let's make this question into equation form
x increase by 10; or x+10
is equal to 33; or =33
so it would look like this; x+10=33
now we can solve it in reverse
33-10=23 so x is 23.
hope this helped, have a great day.
Mickey has $4,500 in a college savings account, and he will need to 0
contribute $6,000 each year towards his college tuition. Mickey wants to
save enough in 3 years to cover his first 2 years of tuition. According to
the table, what is the minimum monthly deposit that Mickey should make
in order to meet his goal
Answer:
200
Step-by-step explanation:
you would need to do 6,000 times 2 to find out how much he will need to cover and 6,000 times 2=12000 so the answer is b 200
A windshield wiper is 50 cm long. In one sweep it turns through an angle of 115°. Calculate the distance (length) it covers in one sweep. Round to the nearest whole number.
Answer:
The distance in one sweep is 100 cm approximately
Step-by-step explanation:
Here, we want to calculate the distance the wiper covers in one sweep
Mathematically;
we have a structure like an arc of a circle. It is the length of this arc we want to calculate.
The formula for the length of an arc is;
theta/360 * 2 * pi * r
r is the radius which in this case is 50 cm
We have ;
115/360 * 2 * 3.1412 * 50 = 100 cm approximately
Can someone help me with one of these? Factor using the X method please!
Answer:
Step-by-step explanation:
6. x² + 8x + 7
= x² + 7x + x + 7
= x (x + 7) + 1 (x + 7)
= (x + 1) (x + 7)
Option D is the answer.
7. x² - x - 72
= x² - 9x + 8x - 72
= x(x - 9) + 8(x - 9)
Option B is the answer.
8. x² - 49
= (x - 7) (x + 7) [formula used a² - b² = (a-b)]
Option D is the answer.
9. 9x² - 54x + 72
= 9(x² - 6x + 8)
= 9(x² - 4x - 2x + 8)
= 9[x(x-4) -2 (x-4)]
= 9[(x - 2) (x - 4)]
= Option A is the answer.
10. x⁴ - 3x³ - 10x²
= x² (x² - 3x - 10)
= x² (x² - 5x + 2x - 10)
= x² [x (x-5) + 2 (x-5)]
= x² (x+2) (x-5)
Option A is the answer.
Carter has a piece of rope that is of a meter long. He
ties knots in the rope to divide it into 3 equal sections.
Use the expression
to find the length of each
section.
Each section of rope is meter long.
Answer:
1 foot
Step-by-step explanation:
1 meter = 3 feet
3 feet divided by 3 = 1 foot
The length of each section of the rope is 1 foot.
What is an expression?An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles. Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.Many authors make a distinction between an expression and a formula, with the former designating a mathematical object and the latter a claim about such objects.Solution -The piece of rope is 1m long.
Carter divided the ropes into three equal parts by tying up the knot.
1 meter = 3 foot.
Therefore, divide 3 by 3.
[tex]\frac{3}{3} =1[/tex] foot.
Therefore, each section is 1 foot long.
Know more about expression here:
https://brainly.com/question/723406
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Approximately how many people died during the Civil War?
Group of answer choices
600,000
6,000,000
6,000
60,000
Answer:
600,000
Step-by-step explanation:
around 620,000 so 600000 is the closest answer
Answer: around 600,000
Step-by-step explanation: you can basically solve this using just basic logic of thinking which would be too large or small
Please!!!!!!!!! someone give me the correct answer to this question.
I will mark you brainliest for the correct answer.
The answer choices are at the bottom.
This is a big test.
Please help!!!
Answer:
(1 suptlimary) ( 2. 41) (3. alternate exterior) (4. 149)
Step-by-step explanation:
can someone please help me with this question? (no links!!!)
Answer:
Step-by-step explanation:
[tex]\text{The area of a circle can be expressed as}\\ \\ A=\pi r^2\ or\ A=\frac{\pi d^2}{4}\\ \\ \text{You are told d=11in and to approximate pi with 3.14 so}\\ \\ A=\frac{3.14(11^2)}{4}\\ \\ A\approx 94.985\ in^2[/tex]