Ismael made a scaled copy of the quadrilateral he used a scale factor less then 1 what could be the side length that corasponds with AD on the scaled copy choose 3 answers

Answers

Answer 1
a and b and c
i did it on khan academy

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Melanie is making a piece of jewelry that is in the shape of a right triangle. The two shorter sides of the piece of jewelry are 6 mm and 8 mm. Find the perimeter of the piece of jewelry. 18 mm 24 mm 22 mm 20 mm

Answers

using Pythagoras’ theorem a2 + b2 = c2 you can find out the third (longest) side. (6x6) + (8x8) = 100 (the square root of 100 is 10) so ur final sum is 6+8+10 = 24 mm

Why is this equation: [tex]\frac{(x-2)^{2}}{24} + \frac{(y+5)^{2}}{29}=1[/tex] an ellipse and not a circle?

Usually, you can tell if it's an ellipse because the coefficients of x and y are different. Here, though, they're the same, yet every website is telling me it's an ellipse and not a circle. Why is that?


THANKS!

Answers

well, your observation is correct, for the form

Ax² + Bx + Cy² + Dy  + E = 0

if the coefficients are the of x² and y² are different and the same sign then we have an ellipse, hmmm I usually see a circle as an ellipse with equal major and minor axes, because is basically just that.

However, the rational form you have is that of an ellipse indeed, we can change it about to the form above and you'll see it so.

Just bear in mind that for the rational form for conics

if both fractions are positive and their denominator different, is an ellipse

if both fractions are positive and their denominator equal, is a circle

if one of the fractions is negative, then we have a hyperbola, and on a hyperbola the traverse axis is always the denominator with the positive fraction, so if the denominator is under the "x" fraction, then the traverse axis is horizontal, if under the "y" fraction, then vertical.

based on that fraction, is an ellipse with a center at (2 , -5).

now, the larger denominator is 29 and it's under the "y" variable, that means the major axis is in the direction of the y-axis, so is a vertical ellipse if you wish.     Check the picture below.

Rewrite the expression using only positive exponents. Show your work.

Answers

[tex]5^{-12} \cdot 32^{-3} \cdot 9^{-15}\\\\\\=\dfrac 1{5^{12}} \cdot \dfrac 1{32^3} \cdot \dfrac 1{9^{15}}\\\\\\=\dfrac 1{5^{12}} \cdot \dfrac 1{(2^5)^3}\cdot \dfrac 1{9^{15}}\\\\\\=\dfrac 1{5^{12} \cdot 2^{15} \cdot 9^{15} }\\\\\\=\dfrac 1{5^{12}\cdot 18^{15}}[/tex]

Answer:

[tex]\boxed{ \dfrac{1}{5^{12}} \times \dfrac{1}{32^{3}} \times \dfrac{1}{9^{15}}}[/tex]

Step-by-step explanation:

In this case, all the exponents are negative. To make them positive, take the term's reciprocal and change the exponents sign.

[tex]\implies 5^{-12} \times 32^{-3} \times 9^{-15}[/tex]

Changing the terms into it's reciprocal form:

[tex]\implies \dfrac{1}{5^{-12}} \times \dfrac{1}{32^{-3}} \times \dfrac{1}{9^{-15}}[/tex]

Changing the signs of the exponent:

[tex]\implies\boxed{ \dfrac{1}{5^{12}} \times \dfrac{1}{32^{3}} \times \dfrac{1}{9^{15}}}[/tex]

What is the y-intercept of the equation y = 1.5x – 4.5?

Answers

Answer:

The y-intercept is (0,-3

Step-by-step explanation:

Y=mx+bY= 1.5x-4.5So (0,-3) is the y-intercept.

Step-by-step explanation:

to find the y intercept you simply equate x to 0. therefore, the y intercept is -4.5

and its coordinate is:

(0, -4.5)

please help

A coin is flipped three times, and the following list shows the possible outcomes.

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

What is the probability of getting exactly one head?

Enter your answer as a reduced fraction, like this: 3/14

Answers

Answer:

1/2

Step-by-step explanation:

A coin has 2 sides, and it is flipped 3 times. 3 x 2 = 6. Each flip only has a head, so 3 flips would have 3 heads.

3/6 = 1/2

Please please help!!!!!!!!!

Find the length of the segment indicated.

A. 26.3
B. 11.8
C. 21.1

Answers

Answer: C

Step-by-step explanation:

Help its 7th grade math ​

Answers

Answer:

Slope: 1

Y-Intercept: 3

Equation of the line: y=x+3

Step-by-step explanation:

1. Slope

Get two random points (eg. 0,3; -3,0)

x1-x2/y1-y2

0-(-3)/3-0

0+3/3

3/3=1

2. Y-intercept

The value of x when y=0

3. Equation of the line

y= mx+b

m= slope

b= y-intercept

y=1x+3

y=x+3

The cumulative frequency diagram shows information about the ages of employees in two companies.
Work out the IQR for both companies and compare them.
Explain your answer in the comment box.

Answers

Answer:

Company A = 35 Company B = 45

Step-by-step explanation:

70x3/4 = 52.5

70x1/4 = 17.5

52.5 - 17.5 = 35

90x1/4 = 22.5

90x3/4 = 67.5

67.5 - 22.5 = 45

Hence, Company A = [tex]35[/tex] and  Company B = [tex]45[/tex].

What is the equation?

The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.

Here given that,

The cumulative frequency diagram shows information about the ages of employees in two companies. Work out the IQR for both companies and compare them.

So, For the Company A

[tex]70[/tex]×[tex](\frac{3}{4})\\[/tex]

[tex]=70[/tex]×[tex](0.75)\\[/tex]

[tex]=52.5[/tex]

[tex]70[/tex]×[tex]\frac{1}{4}\\[/tex]

[tex]= 70[/tex]×[tex](0.25)\\[/tex]

[tex]=17.5[/tex]

So,

[tex]52.5- 17.5 = 35[/tex]

So, Company A is [tex]35[/tex].

For Company B,

[tex]90[/tex]×[tex]0.25 = 22.5[/tex]

[tex]90[/tex]×[tex]\frac{3}{4} = 67.5[/tex]

Then,

[tex]67.5 - 22.5 = 45[/tex]

So Company B is [tex]45[/tex].

Hence, Company A = [tex]35[/tex] and  Company B = [tex]45[/tex].

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Multiply 0.35 times a power of ten so that the product is greater than 1, but less than 1000. Write the expression.

Answers

Answer:

See below

Step-by-step explanation:

Let the power is x, then we have the following inequality

1 < 0.35*10ˣ < 1000

Solving we get

1/0.35 < 10ˣ < 1000/0.352.857 < 10ˣ < 2857.142log 2.857 < log 10ˣ < log 2857.1420.456 < x < 3.456

Answer:

An answer is twenty.

Step-by-step explanation:

0.35^20 is the expression the equation would be 0.35^20=7.609

or: 0.35 times 0.35 times 0.35 times 0.35 times 0.35 times 0.35 times 0.35 times 0.35 times... until you multiply 0.35 times 0.35 twenty times. Not 0.35 times 20, 0.35 times 0.35 twenty times, don't forget to move the decimal! An exponent is 20.

hope this helps!

Dr. Orchid has 9 paintings she wants to hang side by side on her walls.
a) in how many ways can she arrange all 9 paintings?
b) if she wants to display 4 of the paintings, in how many ways can she choose the paintings she wishes to display?

Answers

The number of ways Dr. Orchid can arrange all 9 paintings is 362880 and the number of ways she can choose the paintings she wishes to display is 126.

What is combination?

Combination is the way of arrangement or the collection of items in the particular order. The order of this group of items does not matter in the combination type of arrangement.

Dr. Orchid has 9 paintings she wants to hang side by side on her walls.

a)Number of ways she can arrange all 9 paintings-

Total number of paintings is 9. She wants to arrange them side by side. Thus, the number of ways, she can arrange all 9 paintings is,

[tex]9!=9\times8\times7\times6\times5\times4\times3\times2\times1\\9!=362880[/tex]

b) Number of ways she can choose the paintings she wishes to display.

She wants to display 4 of the paintings. The number of arrangement of 4 painting from 9 paintings is,

[tex]^9C_4=\dfrac{9!}{(9-4)!4!}\\^9C_4=\dfrac{9\times8\times7\times6\times5!}{5!\times4\times3\times2\times1}\\^9C_4=126[/tex]


Thus, the number of ways Dr. Orchid can arrange all 9 paintings is 362880 and the number of ways she can choose the paintings she wishes to display is 126.

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due today i need help pls

Answers

Answer:

rotation and enlargements

Step-by-step explanation:

triangle XYZ is rotated to make triangle GHI and triangle GHI is enlarged by a scale factor of around 2.6? to make triangle MNO then triangle MNO is rotated to make triangle EDF

Answer: The three systems that would be reasonable

ΔXYZ to ΔGHI is a Rotation

ΔGHI to ΔMNO is an Enlargement

ΔMNO to ΔDEF is a Reflection

Step-by-step explanation:

heyyyyyy suuuupppp....can someone please help me with this? thank you! :)))​

Answers

Answer:

A: Second option

B: 18%

Step-by-step explanation:

PART A

The second option

0.40c(0.15) + 0.60c(0.20)

If we have 40% men, and 15% of them are advanced

we can say 40% x 15% x c which is the same as 0.40 x 0.15 x c

Same thing for the women

0.60 x 0.20 x c

PART B

0.40c(0.15) + 0.60c(0.20)

= 0.06c + 0.12c

= 0.18c  which is the same as  18% of c

PLS ANSWER I'M GIVING 40 POINTS!!!!!!

Answers

Answer:

[tex]19 sq.\ units[/tex]

Step-by-step explanation:

The best way to approach this is to figure out the area of the overall square, then remove any gaps.

The overall square is 5 by 5 so the area is:

[tex]A_t = s * s = 5 * 5 = 25\ sq.\ units[/tex]

There are 5 gaps in the shape of triangles, we will use the formula: [tex]A = \frac{bh}{2}[/tex], and subtract from the total.

1. (Top left)

[tex]A_1 = \frac{bh}{2} = \frac{2 * 1}{2} = 1[/tex]

2. (Top right)

[tex]A_2 = \frac{bh}{2} = \frac{2 * 1}{2} = 1[/tex]

3. (Bottom left)

[tex]A_3 = \frac{bh}{2} = \frac{2 * 1}{2} = 1[/tex]

4. (Bottom center)

[tex]A_4 = \frac{bh}{2} = \frac{2 * 1}{2} = 1[/tex]

5. (Bottom right)

[tex]A_3 = \frac{bh}{2} = \frac{2 * 2}{2} = 2[/tex]

The total triangle area is:

[tex]A = 1 + 1 + 1 + 1 + 2 = 6[/tex]

Subtract from total area to actual area:

[tex]A_s = A_t - A = 25 - 6 = 19 sq.\ units[/tex]

A parabola opening up or down has vertex (0,5) and passes through (4,1). Write its equation in vertex form.

Answers

Answer:

see below

Step-by-step explanation:

y = a ( x-0)^2 + 5     sub in the point given to calculate 'a'

1 = a (4)^2 + 5

-4 = 16a

a = - 1/4

y = -1/4 x^2 + 5

Solve for x: x/3= 7

x= 21
x= 12
x= 7/3
x= 11
NEXT QUESTION

Answers

x = 21

21 divided by 3 is 7

Answer:

x= 21

Step-by-step explanation:

[tex] \frac{x}{3} = 7 \\ \\ multiply \: both \: sides \: by \: 3 \\ \\ 3 \times \frac{x}{3} = 3 \times 7 \\ \\ \implies \cancel 3 \times \frac{x}{\cancel 3} = 21 \\ \\ \implies \: x = 21[/tex]

Which expression is equivalent to 27/125?

Answers

Answer:

27/125

Step-by-step explanation:

Clearly, 27 and 125 are perfect cubes as:

27 = 3 × 3 × 3125 = 5 × 5 × 5

Thus, this can be written as:

⇒ 27/125⇒ 3 × 3 × 3/5 × 5 × 5⇒ (3/5)³

Given options:

a)  (3/5)³b)  3/(5³)c)  (3/4)²d) (3³/5⁵)

Choice A

4. The circumference of a circle is 117 inches.
What is the area, in square inches, of the circle? Express your answer in terms of it.

Answers

Answer:

1089.34in²

Step-by-step explanation:

A=πr2

C=2πr

Solving for A

A=Csquared/4π = 117 squared / 4 * π = 1089.33601in²

Hope it helps

Find the median of the data. 1, 8, 9, 2, –7, –5

Answers

Answer:

5.5

Step-by-step explanation:

firrst arrange them from least to greatest:

1,8,9,2,-5,-7

then cross out each side one by one until its in the middle

which leaves with 9 and 2

add both together

and get 11

divide by 2 which is 5.5

Which expression is equal to...

Answers

The answer is the one that has a denominator of X-5 :)
The first one should be the correct answer

Find the mean of the following numbers:
12
1
10
9
3
4
9
7
9

Answers

Answer:

7.11

Step-by-step explanation:

You will add all of those numbers and divide them by the amount of numbers you added. And I rounded the answer to 2 decimal places, seeing that it is a recurring decimal.

Molly is studying two number patterns. Pattern A starts at 0 and has the rule "add 3." Pattern B starts at 0 and has the rule "add 6." What is the relationship between corresponding terms in the two patterns?

Answers

The relationship between corresponding terms in the two patterns is B(n) = 2A(n) where the A(n) and B(n) is the nth terms of the pattern A and pattern B.

What is a sequence?

It is defined as the systematic way of representing the data that follows a certain rule of arithmetic.

We have Pattern A starts at 0 and has the rule "add 3"

Pattern A:

0, 3, 6, 9, 12.....and so on

Pattern B starts at 0 and has the rule "add 6."

Pattern B:

0, 6, 12, 18, 24, 30.... and so one

In the pattern A we can find the nth term:

First term = 0, common difference = 3

A(n) = 0 + (n-1)3 = 3(n-1)

Similarly in the pattern B we can find the nth term

First term = 0, common difference = 6

B(n) = 0 + (n-1)6 = 6(n-1)

The relation can be derived between the nth term of pattern A and pattern B as follows:

B(n) = 2A(n)

Thus, the relationship between corresponding terms in the two patterns is B(n) = 2A(n) where the A(n) and B(n) is the nth terms of the pattern A and pattern B.

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A cylinder has a base radius of 4m and a height of 6m. What is its volume in cubic m, to the nearest tenths place?

Answers

Answer:

301.6 cubic meters

Step-by-step explanation:

cylinder is a shape with straight sides with circular or oval cross-sections. We know that the cylinder in the question must be a circular cylinder due to its radius description. 

Volume Formula

A circular cylinder has a volume of [tex]V=\pi r^2h[/tex]. In this equation, V is the volume, r is the radius, and h is the height. The question tells us that r=4m and h=6m. So, we can plug these values into the formula.

Solving for Volume

To solve plug the values into the formula and rewrite the equation.

[tex]V=\pi *4^2*6[/tex]

Next, apply the exponents.

[tex]V=\pi *16*6[/tex]

Then, multiply the constants.

[tex]V=\pi *96[/tex]

Finally, multiply the remaining terms. Remember to use the pi button on the calculator and not an estimation to get a more exact value.

[tex]V=301.6[/tex]

Make sure your answer is rounded to the correct digit. This means that the volume must be 301.6 cubic meters.

Which of these statements is true for f(x) = 3*2^x
A. The y-intercept is (0,1).
B. The domain is x > 0.
C. It is always decreasing.
D. The y-intercept is (0,3).

Answers

work it out you cheater lol

find the median number of pumpkins
52,24,41,61,89,36,56​

Answers

The median is 52 because you put all the numbers in order from smallest to largest and find the one in the middle

Find the 12th term of the geometric sequence 5, 15, 45, ...5,15,45,...

Answers

Answer:

885735

Step-by-step explanation:

5

x 3

15

x 3

45

x 3

135

x 3

405

x 3

1215

x 3

3645

x 3

10935

x 3

32805

x 3

98415

x 3

295245

x 3

885735

Answer:

885735

Step-by-step explanation:

What type of error occurs if you fail to reject h0 when, in fact, it is not true?.

Answers

The type of error that occurs  if you fail to reject h0 when, in fact, it is not true is a type 2 error.

What is a type 2 error?

Type 2 error is when the null hypothesis is not rejected even though it is not false. Type 1 error is when the null hypothesis is rejected when it is true. A type 2 error leads to a false negative which is also known as an error of omission.

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According to this box plot of test scores, the middle 50% of the class scored between what two scores?

options:

96-100


73-96


60-73


85-90

Answers

73-96

For box plots, the two edges of the box represent the 25% and 75% mark, meaning everything in between those two lines is the middle 50%. In this case the lines are at 73 and 96.

When the clock breed 6 o’clock what type of angle is shown

Answers

Answer:

a straight angle

Step-by-step explanation:

the minute and hour hand are straight lined up the hour being on the six and the minute being on the twelve

If a quadratic has a maximum at (4, 2) with roots at (2,
0) and (6, 0), what is a possible equation?

Answers

Answer:

g(x) =  - 1/2 * (x^2 - 8x + 12)

Step-by-step explanation:

Given the information, you have provided.

Zeros: (2,0) and (6,0).

Maximum: (4,2) which is also your (h,k)

f(x) = - (x - 2)*(x - 6)

g(x) =  - 1/2 * (x^2 - 8x + 12)


I do not know how to explain this, but -1/2 makes the graph get (4,2) as the maximum.

The red graph is f(x) = - (x - 2)*(x - 6)

The blue graph is your answer g(x) =  - 1/2 * (x^2 - 8x + 12)

what is the best deal on flour .a .b .c .d

Answers

Answer:

2.5 is the best deal

Step-by-step explanation:

hope this helps

2.5 is the best deal for flour
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