If AB=CD, CD = 9in, BC = 5x, and AD = 53 in. , find BC

Answer:

13,236 minor earthquakes occurred

Step-by-step explanation:

[tex]\frac{Part}{Total}[/tex]

"x" part amount of earthquakes

14,905 total amount of earthquakes

88.8 % part percentage of earthquakes

100% total percentage of earthquakes

[tex]\frac{x}{14905}[/tex] = [tex]\frac{88.8}{100}[/tex]

x = 14,905 × [tex]\frac{88.8}{100}[/tex]

x = 14,905 × 0.888 = 13,235.64 ≈ 13,236 minor earthquakes occurred

Answer:

x² - 28x√x + 294x - 1372√x + 2404

Step-by-step explanation:

f(x) = [tex]x^{4}[/tex] + 3

g(x) = x - 7

h(x) = √x

f(g(h(x))) - ?

g(h(x)) = √x - 7

f(g(h(x))) = [tex](\sqrt{x} -7) ^{4}[/tex] + 3 = ( √x - 7 )² × ( √x - 7 )² + 3 =

= (x - 14√x + 49)(x - 14√x + 49) + 3 =

= x² - 14x√x + 49x - 14x√x + 196x - 686√x + 49x - 686√x + 2401 + 3 =

=  x² - 28x√x + 294x - 1372√x + 2404

Answer:

The answer is B. 20 - 17 = 3

Step-by-step explanation:

( 3x + 5) - (2x + 7)...... x = 5

( 3(5) + 5) - ( 2(5) + 7)

( 15 + 5) - (10 + 17)

20 - 17 = 3

Thank you :)

Answer:

The answer is  20 - 17 = 3 [Choice B.]

Step-by-step explanation:

Put x = 5 into the formula (3x + 5) - (2x + 7)

[3(5)+5] - [2(5)+7]

= [15 + 5] - [10 + 7]

=20 - 17

= 3

Answer:

y = -6/19x - 2

Step-by-step explanation:

First we need to find the slope and we can do that by using slope-intercept form [ y2-y1/x2-x1 ].

-2-4/10-(-9)

-6/19

Second we can find the y-intercept using slope intercept form [ y = mx + b], the slope, and a given point.

y = -6/19x + b

4 = -6/19(-9) + b

4 = 54/19 + b

-2 = b

Third we will input all the data we solved for back into the formula.

y = -6/19x - 2

Best of Luck!

Answer:

example 1 is correct

a^2 - b^2 factors as (a+b)(a-b)

that is a form that math teachers want you to memorize

it is called the "difference of squares" factoring

Step-by-step explanation:

[tex] - 2b - ( - 7) = 11 \\ \\ - 2b + 7 = 11 \\ \\ - 2b = 11 - 7 \\ \\ - 2b = 4 \\ \\ b = \frac{4}{ 2} \\ \\ b = 2[/tex]

Answer:

b = -2

Step-by-step explanation:

[tex] - 2b - ( - 7) = 11[/tex]

[tex] - 2b + 7 = 11[/tex]

[tex] - 2b + 7 - 7 = 11 - 7[/tex]

[tex] - 2b = 11 - 7[/tex]

[tex] - 2b = 4[/tex]

[tex]b = 4 \div( - 2) = - 4 \div 2 [/tex]

[tex]\boxed{\green{b = - 2}}[/tex]

9514 1404 393

Answer:

   [[. . 3 6 .][1 3 4 9 .][9 2 . 7 1][. 1 2 8 3][. 4 9 . . ]]

Step-by-step explanation:

It is helpful to remember that the first four digits {1, 2, 3, 4} total 10, and the last four digits {6, 7, 8, 9} total 30. It is also worthwhile to note that the smallest sum of two digits is 3 = 1+2, and the largest sum of 2 digits is 17 = 8+9. Some sums can only be made one way: 4 = 1+3, 16 = 7+9.

Here, we will refer to rows 1-5 from the top down, and columns 1-5 from the left to right.

__

Based on the above, column 5 can only be made one way: 1+3. Column 4 can only be made one way: 9+8+7+6. Then the choices for row 3B will be 1+7 or 5+3. We know it can't be 5+3 because 5 is not part of column 4. This makes our first fill-in (row, column) be (3,4)=7, (3,5)=1, (4,5)=3.

The sum of the remaining cells in row 4 must be 14-3 = 11, and cell (4,4) must be 6, 8, or 9. It cannot be 9, because that would require the remaining two cells to have a sum of 2, which they cannot. So, cell (4,4) is 6 or 8.

Cell (1,4) cannot be 9, either, because we cannot use 0 in cell (1,3). Then the only place for 9 in column 4 is in cell (2,4)=9.

With cell (1,4) being restricted to 6 or 8 (the two remaining numbers in column 4, cell (1,3) must be 3 or 1, and cell (2,3) must be 4 or 6. It cannot be 6 because that would require a sum of 2 in the first two cells of row 2, so (2,3)=4, (1,3)=3, and (1,4)=6. This makes (4,4)=8 and the remaining two cells of row 4 must be 1 and 2. 1 cannot go in (4,3), so we must have (4,3)=2 and (5,3)=9, (5,2)=4, (4,2)=1. That leaves 2 and 3 for rows 2 and 3 of column 2. The first two cells of row 2 must total 4, so must be 1 and 3. Cell (2,2) cannot be 1, so must be 3, leaving (2,1)=1, (3,1)=9, (3,2)=2 and that completes it.

The fill-ins are ...

   [. . 3 6 .]

  [1 3 4 9 .]

  [9 2 . 7 1]

  [. 1 2 8 3]

  [. 4 9 . . ]

9514 1404 393

Answer:

  t(n) = -n^2 -n +102

Step-by-step explanation:

We can use the first 3 terms to find a, b, c.

  a(1)^2 +b(1) +c = 100

  a(2)^2 +b(2) +c = 96

  a(3)^2 +b(3) +c = 90

Subtract the first equation from the other two:

  3a +b = -4 . . . . . . [eq4]

  8a +2b = -10 . . . . [eq5]

[eq5] can be reduced to

  4a +b = -5 . . . . . . [eq6]

Subtracting [eq4] from [eq6] gives ...

  (4a +b) -(3a +b) = (-5) -(-4)

  a = -1 . . . . . . . . simplify

Filling that into [eq4], we get

  3(-1) +b = -4

  b = -1 . . . . . . . add 3

Putting the values for 'a' and 'b' into the first equation gives ...

  -1 +-1 +c = 100

  c = 102

Then the n-th term t(n) of the sequence is ...

  t(n) = -n^2 -n +102

_____

Additional comment

As you might guess, there is a generic solution for quadratic sequences. In terms of the first term (a1), first first difference (d1), and second difference (d2), the coefficients can be written as ...

This sequence has first differences of -4, -6, -8, -10, and second differences of -2. Putting the sequence values into the above formulas, we find ...

Answer:

9 and 10

Step-by-step explanation:

Answer:

Step-by-step explanation:

360 degrees

Answer:

No angle is made

Step-by-step explanation:

According to me an angle is a point where two or more lines meet and apparently a circle has no meeting lines expect with given radii , diameters or chords

Answer:

25.12

Step-by-step explanation:

Circumference (C) = 2πr

Where r = radius

We want to find the circumference of a circle with a radius of 4m ( this means that r = 4 )

To do so we simply plug in the value of r into the circumference formula

Formula: C = 2πr

r = 4 ( note that it says use 3.14 for π )

plug in values

C = 2(3.14)(4)

Simplify

C = 25.12

Answer:

y=4x+2 is answer .......

Answer:

sum of angles on a straight line =180 degrees

DAB=180-36-35=109 degrees

Answer:

125

Step-by-step explanation:

400÷2 = 200

300÷2 = 150

so,

250÷2 = 125

Answer:

23.089

Step-by-step explanation:

Always divide first then continue with subtraction then addition.

Hey there!

Just do PEMDAS

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

23 + 3.54 / 3 - 1.089

= 23 + 3.54 / 3 - 1.089

3.54 / 3 = 1.18

= 23 + 1.18 - 1.089

23 + 1.18 = 24.18

= 24.18 - 1.089

= 23.091

Answer: 23.091

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

9514 1404 393

Answer:

Step-by-step explanation:

Consider a zero at x=1.

If it has multiplicity 1, the corresponding factor is (x -1). Now consider the sign of that factor for x = 1.1. The value is (1.1 -1) = 0.1, a positive number.

When the value of x is 0.9, the factor is (0.9 -1) = -0.1, a negative number.

This tells you that values to the left of a zero make the factor(s) associated with that zero be negative. For x-values to the right of the zero, the factor(s) will be positive.

If the multiplicity is even, the product of those factors is positive on either side of the zero. (A negative number to an even power is a positive number.) That is, the graph will not change sign from one side of an even-multiplicity factor to the other. At an odd-multiplicity factor, the graph changes sign.

__

For the problem at hand, the only even-multiplicity factor is (x -1), so the graph will not change sign at x=1. It will touch the axis (be tangent to the x-axis), but will not cross. The other zeros have odd multiplicity (1 or 3), so the graph will change sign there.

It is worthwhile to note that the higher the multiplicity, the "flatter" the graph is at the zero. You can see this in the attachment by comparing the shape of the graph at x=6 with the shape at x=2 (also an upward zero crossing).

_____

Additional comment

You may wonder why the curve is below the x-axis at x=1 when the product of the factors in that neighborhood is always positive. The reason is that there are an odd number of zeros to the right of x=1, so the product of those factors is negative.

In this figure to find value of x ,length of AC should be given...I dont see the length of AC in the picture..

Answer:

B r a i n d o e s n o t c o m p r e h e n d

Step-by-step explanation:

m e n o u n d e r s t a n d

Answer:

M E N E I T H E R ! ! ! !

Step-by-step explanation:

U H h h H H H H H H !!!!!!!!!

Answer:

According to Answers.com the answer is 7.04 1012

And according to AnswerGuru its 7.04 trillion = 7.04 x 10¹²

Answer:

500

Step-by-step explanation:

Greatest possible number with digits 5,1,3 is 531.

round to hundred =500

Answer:

21 loads

Step-by-step explanation:

357/17=21

Answer:

40

Step-by-step explanation:

Divide 30 by 3 to find 1/4. You get 10.

Multiply 10 by 4 to find 4/4. You get 40.

Answer:

There are 6 integers in-between 3 & 10

Explanation:

Integers are simply whole numbers.

4,5,6,7,8,9.

Answer =1267.2

Step-by-step explanation:

6(3+5)26.4

6×8×26.4

48×26.4

1267.2 is the answer

the answer is $78.75 i did the math to this problem

Answer:

W = 24cm

Step-by-step explanation:

p of a rectangle = 92

L = 22cm and W = ?

p = 2(L+W)

92 = 2(22+W)

92 = 44 + 2W

2W = 92 - 44

2W = 48

W = 48/2

W = 24cm

Answer:

Down

Step-by-step explanation:

List from low to high

27 27 31 41 41 41 47 48 48 54 54 61 61

a. Mean = sum of sample/2

Mean = 581 / 2 = 290.5

b. Mean + 5%

290.5 + 5% = 305.025

c. 305.025 / 12 = 25.41875

d. Mean is ratio. Thus the adding and dividing with anything will affect the mean overall

-2a + 6b

= -2(6) + 6(-3)

= -12 + (-18)

= -30

[tex]\huge\textsf{Hey there!}[/tex]

[tex]\huge\textsf{-2a + 6b}[/tex]

[tex]\huge\textsf{= -2(6) + 6(-3)}[/tex]

[tex]\huge\textsf{= -12 + (-18)}[/tex]

[tex]\huge\textsf{= -12 - 18}[/tex]

[tex]\huge\textsf{= -30}[/tex]

[tex]\huge\textsf{Therefore, your answer is: -30}[/tex]

[tex]\huge\textsf{Good luck on your assignment \& enjoy your day! }[/tex]

80 is diviser , 240 is dividend and 3 is quotient

Answer:

x = 5.5 inches.

Step-by-step explanation:

The perimeter is the sum of the 3 sides, so:-

x + x + 3 + 2x + 5 = 30

4x + 8 = 30

4x = 22

x = 5.5.