The half-life of Radium-223 is 11.43 years. What is the annual decay rate? Express the result to four decimal places.
Express the annual decay rate as a percentage to two decimal places.
%

Answer:

x = 5

Step-by-step explanation:

Since this is an isosceles triangle, the two angles opposite the congruent sides are also congruent. That means that ∠A and ∠C both equal 73°, you don't even need to solve the equation with y in it. Since all the angles in a triangle add up to 180°, we know that ∠B is equal to [tex]180-(73*2)[/tex], which is 34. So if [tex]34=6x+4[/tex], then you can solve to get [tex]x=5[/tex].

Answer:

(x, y) → (x-6, y-2)​

Step-by-step explanation:

When you translate to the left, you are subtracting.

When you translate downwards, you are also subtracting.

The same thing goes for the other way around!!

When you translate to the right, you are adding.

When you translate upwards, you are also adding.

Hope this helps!! :)

well, last year it was "x", which oddly enough is the 100%.

now, this year is 224000 tons, and that's an increase of 40%, so that's really the 100% + 40% = 140%, so if 224000 is the 140%, what's "x"?

[tex]\begin{array}{ccll} tons&\%\\ \cline{1-2} x & 100\\ 224000& 140 \end{array} \implies \cfrac{x}{224000}~~=~~\cfrac{100}{140} \implies \cfrac{ x }{ 224000 } ~~=~~ \cfrac{ 5 }{ 7 } \\\\\\ 7x=(5)(224000)\implies x=\cfrac{(5)(224000)}{7}\implies x=160000[/tex]

Answer: No

Step-by-step explanation:

The ratio of the lengths of the shortest sides is [tex]\frac{6}{4}=\frac{3}{2}[/tex].

The ratio of the lengths of the longest sides is [tex]\frac{10}{7}[/tex].

Since these ratios are not equal, the triangles are not similar.

Answer:

5

Step-by-step explanation:

Slope=y2-y1/x2-x1

20-5/-3-(-6)

20-5/-3+6

15/3

=5

2 = -5(1) + b is  equation of the slope-intercept form of line .

What does math's slope intercept form mean?

A line's equation can be written in the slope-intercept form such that the slope (steepness) and y-intercept (where the line crosses the vertical y-axis) are instantly visible.

                      This form is frequently known as the y = mx + b form.

y = mx + b

Parallel lines have the same slope, so

m = -5

y = -5x + b

Use the given point to find b.

2 = -5(1) + b

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The total number of 1 x 1 shaded squares that there will be in the first 21 figures is of:

924.

The number of squares for each figure is given as follows:

(4, 8, 12, 16).

As the difference between consecutive terms of the sequence is constant, this sequence is an arithmetic sequence, with first term of 4 and common difference of 4.

The sum of the first n terms of an arithmetic sequence is given as follows:

[tex]S_n = \frac{n(a_1 + a_n)}{2}[/tex]

The parameters of the equation are given as follows:

Applying the explicit form, the 21st term of the arithmetic sequence in this problem is given as follows:

[tex]a_{21} = 4 + 20 \times 4 = 84[/tex]

Hence the total number of squares in the first 21 figures is obtained as follows:

[tex]S_{21} = 10.5 \times (4 + 84) = 924[/tex]

The figures are given by the image shown at the end of the answer.

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Answer: Meal B

Step-by-step explanation:

Let's find Meal A

170 divided by three = 56.7 Calories per serving

Find Meal B

160 divided by 4 =  60 Calories per serving

Meal B has more Calories per serving!

Answer: 63

Step-by-step explanation:

You can put this solution on YOUR website! Hi there, 2/3 = 42. Multiply 42 by 3 = 126. Divide 126 by 2 = 63. The lady's age. 63yrs old. Proof: 2/3 x 63

Answer:

63

Step-by-step explanation:

42 / 2 = 21

21 * 3 = 63

If 42 is two thirds, then one third is 21 because (2/3) / 2 = 1/3.

If 21 is one third, then the whole is 63 because (1/3) * 3 = 1.

The x-coordinate of the solution to the system of equations plotted is -2

The x-coordinate of the solution to the system of equations is sought by examining the attached graph

The point where the two lines plotted intersect is the solution. At this point, like any other point in a coordinate system will have x coordinate and y coordinate

The x coordinate is solved by tracing the from the point to the x axis, The value where the imaginary trace line drawn intersects the x coordinate is the solution at the x coordinate

This point has the values of -2 in the x axis

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Answers to both the subparts using mathematical operations are shown:

(A) Rate of the car in miles/min: 0.95 miles/min

(B) Distance traveled in 5 min: 4.8 miles

Calculating a value using operands and a math operator is referred to as performing a mathematical "operation."

The math operator's symbol has predetermined rules that must be applied to the supplied operands or numbers.

PEMDAS stands for Parentheses, Exponents, Multiplication, Division, and Addition Subtraction (from left to right).

So, we know that the rate of the car is 57 miles/hour.

(A) Car rate in miles/min

We know that 1 hour has 60 minutes. Then,

57/60

0.95 miles/min

(B) Distance traveled in 5 min:

0.95 * 5

4.75

Rounding off: 4.8 miles

Therefore, answers to both the subparts using mathematical operations are shown:

(A) Rate of the car in miles/min: 0.95 miles/min

(B) Distance traveled in 5 min: 4.8 miles

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The anticipated value and standard error are 0.75 and 0.0306, respectively.

If n is the sample size and p is the genuine population proportion, then the sampling distribution of a sample proportion is thought to adhere to the normal distribution.

As per the given question;

Let P' represents the sample proportion.

Regarding the sample proportion's sampling distribution:

The anticipated value is calculated using,

μp = P

μp = 0.75

As a result, 0.75 is the expected value.

Now, for the standard deviation-

σp = √P(1 -P)/n

σp = √0.75(1 - 0.75)/200

σp = 0.0306

Because the standard error is specified as; the value is 0.0306.

As a result, again for sampling distribution for sample proportion, the anticipated value and standard error are 0.75 and 0.0306, respectively.

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The complete question is-

A random sample of size n = 200 is taken from a population with population proportion P = 0.75. Calculate the expected value and the standard error for the sampling distribution of the sample proportion.

The value of XS = 116, UZ = 43, and VY = 84.

What are perpendicular bisectors?

A line or line segment that divides a given line segment into two equal portions is known as a perpendicular bisector.

Here, we have

Given

The perpendicular bisectors of its sides are TS, US, and VS. They meet at a single point S.

VS 80, YZ=86, and ZS=116 and we have to find XS, UZ, and VY.

TS, US, and VS are perpendicular bisectors

So, XV = VY, YU = UZ, XT = TZ

Then, ΔYST ≅ ΔZST

ΔYSV ≅ ΔXSV

ΔYUS ≅ ΔZUS

So, XS = ZS = 116

UZ = 1/2YZ = 1/2×86 = 43

VY = VX

VX² + VS² = XS²

VX = √XS² -VS²

VX = √116² - 80²

VX = 84

Hence, the value of XS = 116, UZ = 43, and VY = 84.

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Answer:

ANS:- 67

Step-by-step explanation:

d = a2 - a1

a2 = 307, a1 = 313

d = 307 -313 = -6

an = a1 + (n - 1)d

a1 = 313, n = 42, d = -6

a42 = 313 + (42 -1)(-6)

a42 = 313 + (41)(-6)

a42 = 313 - 246

a42 = 67

Answer:

10, 35, 135, 410, 1235, ...

Step-by-step explanation:

a(1) = 10

a(n) = 3 * a(n-1) + 5

This recursive sequence starts with the initial value of a(1) = 10, and each subsequent term is calculated by applying the formula a(n) = 3 * a(n-1) + 5. The resulting sequence would be:

a(1) = 10

a(2) = 3 * a(1) + 5 = 3 * 10 + 5 = 35

a(3) = 3 * a(2) + 5 = 3 * 35 + 5 = 135

a(4) = 3 * a(3) + 5 = 3 * 135 + 5 = 410

a(5) = 3 * a(4) + 5 = 3 * 410 + 5 = 1235

And so on. This recursive sequence generates the following sequence: 10, 35, 135, 410, 1235, ...

The required value of x of a triangle is 27°.

What is a triangle?

A triangle is a polygon with three vertices and three sides. The angles of the triangle are formed by the connection of the three sides end to end at a point. The triangle's three angles add up to 180 degrees in total.

Given, angle measurements of 2x, 4x+6, and x-15

Based on the definition of a triangle, the sum of all angles will be 180 degrees.

So, 2x + 4x+6 + x-15 = 180°

or, 7x - 9 = 180°

or, 7x = 189°

or, x = 189/7 = 27°

Hence, the required value of x of a triangle is 27°.

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Answer:

Step-by-step explanation:

the power house of the midriccondria examples of solutions of the 9+ 10 so the annswer is 11

Solving the equation x²+2x+7 using the quadratic formula, the resultant answer is x = -1 ± 2.44949i.

Any quadratic problem can be solved using the quadratic formula.

The equation is first changed to have the form ax²+bx+c=0, where a, b, and c are coefficients.

After that, we enter these coefficients into the following formula:

(-b±√(b²-4ac))/(2a)

Quadratic equations can be solved using one of three main strategies: factoring, the quadratic formula, or completing the square.

So, solving x²+2x+7 using the quadratic formula as follows:

Quadratic formula: (-b±√(b²-4ac))/(2a)

Substitute values and caluclate:

x = (-b±√(b²-4ac))/(2a)

x = (-2±√(2²-4(1)(7))/(2*1)

x = (-2±√4-28)/(2)

x = (-2±√-24)/(2)

Complex roots:
x = (-2±2√6i)/(2)

x = -2/2 ± 2√6i/2

Simplifying fractions:
x = -1 ± √6i

So, we have:
x = -1 ± 2.44949i

Therefore, solving the equation x²+2x+7 using the quadratic formula, the resultant answer is x = -1 ± 2.44949i.

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Answer:

The simplest form of 210/945 is 2/9

Step-by-step explanation:

Perimeter is 30.A triangle's perimeter is measured in the same unit as its side lengths.

Additionally, a triangle's perimeter and side lengths are measured in the same unit.If the lengths of its sides are measured in a different unit, first convert them to that unit.

Perimeter of a triangle = sum of all three sides.

Since it's equilateral, just solve for x with any of the 2 sides being equal

2x + 4 = 3x + 1

Subtract 1 from both sides

2x + 3 = 3x

Subtract 2x from both sides

3 = x

Perimeter is 10 + 10 + 10 = 30

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There should be 27 cameras.

The amount of space filled by a flat (2-D) surface or an object's form is known as its area. Draw a square on a sheet of paper with a pencil. A 2-D figure, that is. The term "Area" refers to the area that a form occupies on paper. Now picture that your square is composed of smaller unit squares.

It is 150 feet by 70 feet.

The size of the store will be 150 x 70  feet, or 10,500 square feet. The security cameras now each have 400 square feet.

The area of the shop / each camera's area will determine how many cameras are needed, which is 10500/400.

which is 27

27 cameras are therefore required.

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If cara wants to build an 80 foot long rectangular sheep pen in back of her barn then the area of the sheep pen will be 1600 square feet.

An enclosed 2-D shape called a rectangle has four sides, four corners, and four right angles (90°). A rectangle has equal and parallel opposite sides. A rectangle has two dimensions—length and width—because it is a two-dimensional form.

What is the formula for area of rectangles?

To find the area of a rectangle, we multiply the length of the rectangle by the width of the rectangle as Area = length x width

Length of the sheep pen =80 ft

bought fencing = 180 ft

One side of rectangular sheep pen is covered with barn which is equaling the  width

perimeter of rectangular sheep pen = 2(length +width)

length need to covered is 2 Length+ width

180 =2 length+width

180 = 2 x80 +width

180-160= width

20= width

Area of rectangle = 80 x 20

=1600 square feet

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The number of yellow marbles based on the given ratio will be 78.

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.

A ratio is a comparison of two quantities. A proportion is an equality of two ratios.

Suppose, the number of yellow marbles is Y while purple marbles are P.

As per the given,

The ratio Y/P = 13/4

Total Y + P = 102

(13/4)P + P = 102

13P + 4P = 408

17P = 408

P = 24

And, Y = 102 - 24 = 78

Hence , The number of yellow marbles based on the given ratio will     be 78.

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The required value of the function at f(5) = 125, as of the given conditions.

Given that,
f(x) is a polynomial of degree four with a leading coefficient 1 such that f(1) = 1, f(2) = 8 , f(3) = 27, and f(4) = 64, then the value of f(5) is ot be determined.

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
f(x) = x⁴/x
Put x = 5
f(x) = 5⁴ / 5 = 125

Thus, the required value of the function at f(5) = 125, as of the given conditions.

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If each worker used the standard deduction and no worker had any additional adjustments, the worker with the lowest taxable income last year was A. Jamie.

What is taxable income?

The taxable income is the difference between a worker's gross income and the total deductions (standard or itemized).

Data and Calculations:

                 Gross Income     Standard       Number of       Taxable

                                            Deduction   Exemptions at     Income

                                                                   $3,650 Each

Delaney          $77,568          $8,350                               $69,218 ($77,568 - $8,350)

Jamie               $71,234         $5,700                               $65,534 ($71,234 - $5,700)

Oliver              $74,872         $8,350                               $66,522 ($74,872 - $8,350)

Thomas          $77,623         $5,700                                $71,923 ($77,623 - $5,700)

Hence, if each worker used the standard deduction and no worker had any additional adjustments, the worker with the lowest taxable income last year was A. Jamie.

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The two ordered pairs from the proportional relationship are given as follows:

A proportional relationship is defined as follows:

y = kx.

In which k is the constant of proportionality.

Initially, Jesse's rate was of 9 inches per minute, however, the rate decreased 8 inches per minute, then the constant of proportionality is obtained as follows:

k = 9 - 8 = 1.

Thus the proportional relationship that gives the distance that Jesse has crawled in x minutes is given as follows:

y = x.

Then the two ordered pairs are defined as follows:

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Through a given point not contained in a given line, there exists exactly one line parallel to the given line.

In Mathematics, parallel lines can be defined as two (2) lines that are always the same (equal) distance apart and they can never meet. In Geometry, two (2) lines are parallel under the following conditions:

m₁ = m₂

Note: m represents the slope.

This ultimately implies that, two (2) lines would be parallel to each other when the slope (m₁) of the first line is equal to the slope (m₂) of the second line.

According to the Parallel postulate, there is always exactly one line that is parallel to a given line in the same plane when a point and a line are given, provided that the point is not on that line.

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Answer:

1,029

Step-by-step explanation:

Answer:

Step-by-step explanation:

-0.05

Answer: -1/20, or -0.05

Step-by-step explanation:

rewrite -1 1/4 as -5/4

rewrite 0.75 as 75/100 and simplify = 3/4

rewrite 0.45 as 45/100 and simplify = 9/20

-5/4+3/4 = -2/4 = -1/2

-1/2+9/20 find LCD

LCD = 20

-1/2 * 10/10

-10/20+9/20= -1/20