Suppose that 7% of the general population has a disease and that the test for the disease is accurate 70% of the time. What is the probability of testing positive for the disease.

Answer:

B

Step-by-step explanation:

Step 1: Add 2 to both sides.

x−2+2>3+2

x>5

Answer:

cos13°

Step-by-step explanation:

Using the cofunction identity

sinx° = cos(90 - x)°

sin77° = cos(90 - 77)° = cos13°

Answer:

5.

Step-by-step explanation:

(12,5) (3, -9) (3,14) (-6,5)

===================================================

Explanation:

The idea is that for any term, we add on the common difference d to get the next term. For example, the sequence {3, 7, 11, 15, 19, 23, ...} has us add on 4 each time so d = 4 in this case.

3+4 = 7

7+4 = 11

11+4 = 15

and so on. The nth term is represented by the notation[tex]a_n[/tex] while the term just before the nth term is written as [tex]a_{n-1}[/tex]

So adding d onto the term just before the nth term gets us the nth term which is how we end up with [tex]a_n = a_{n-1}+d[/tex]

This is the recursive form of the arithmetic sequence. The closed form is written as [tex]a_n = a_1 + d(n-1)[/tex]

Answer:

option A is correct...

Step-by-step explanation:

just got done with that question and am now on my 10th, wish me luck!

To solve the inequality -1/2 p < -16, multiply all parts of the inequality by '-2' and reverse the inequality sign, yielding 'p' > 32. Therefore, any real number greater than 32 will satisfy the original inequality.

For solving the inequality -1/2 p < -16, you want to find the value of 'p' where the inequality holds true. To do that, you should remove the fraction from the inequality. You can do this by multiplying every part of the inequality by '-2', however, remember that when you multiply or divide by negative numbers in an inequality, the direction of the inequality sign changes.

So, (-1/2 p) * -2 becomes 'p' and -16 * -2 becomes 32, reversing the inequality sign results in 'p' > 32.

In terms of a solution set, this implies that any real number greater than 32 will satisfy the original inequality -1/2 p < -16.

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The process of rounding 895,472 to the nearest 100,000 involves examining the ten thousands place of the number. Given it's 9, the number is rounded up to 900,000.

The question is asking to round the number 895,472 to the nearest 100,000. To do this, you should look at the ten thousands place of the number, which is 9. If this digit is 5 or greater, round the hundreds of thousands place up. If it is less than 5, round down. In this case, since the ten thousands place is 9, we round 800,000 up to 900,000. Therefore, 895,472 rounded to the nearest 100,000 is 900,000.

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Answer:

A

Step-by-step explanation:

Answer:

Option A, By investing in goods and services

, is the right answer.

Step-by-step explanation:

Option A, investing in goods and services is the correct answer because the investment on goods and services will generate employment in the country and person will be able to earn more and consequently the expenditure will also increase. Moreover, if there will be more production of goods and services then the country’s GDP and economy will boost.

Answer:

Hexagon

Regular polygon

Convex

Step-by-step explanation:

Hexagon is the name of the shape.

A regular polygon is a polygon with equal sides.

Convex means "A shape with no indentations."

I think that it’s n>7

i think it’s 7 bc u gotta distribute the 5 w the n and 8 and then it equals to 5n+40>75 then just subtract 40 from each side and then ur left w 5n>35, divide each side by 5 and u get n>7

Answer:

15/2 in³

Step-by-step explanation:

The formula for the vol. of a pyramid

is

V = (1/3)(area of base)(height of pyramid)

Here, the volume is:

V = (1/3)( [1/2][5 in][9 in] )·(10 in)

   = (9/3)(5/2)(10) in³

    =  450/6 in³   =   150/2 in³  =  75 in³     Volume of the pyramid

Answer:

Step-by-step explanation:

The formula of a volume of a pyramid:

[tex]V=\dfrac{1}{3}BH[/tex]

B - area of a base

H - height

In a base we have the right triangle with legs 9in and 5in.

The formula of an area of a right triangle:

[tex]A=\dfrac{ab}{2}[/tex]

ab - legs

Substitute:

[tex]B=\dfrac{(5)(9)}{2}=\dfrac{45}{2}\ in^2[/tex]

The height H = 10 in.

Calculate the volume:

[tex]V=\dfrac{1}{3\!\!\!\!\diagup_1}\left(\dfrac{45\!\!\!\!\!\diagup^{15}}{2\!\!\!\!\diagup_1}\right)(10\!\!\!\!\!\diagup^5)=(1)(15)(5)=75\ in^3[/tex]

Answer:

Step-by-step explanation:

Answer:

[tex]y=2\sin (x-\pi)[/tex]

Step-by-step explanation:

The sine graph has an amplitude of 2.

The period of this function is [tex]2\pi[/tex]

The graph is obtained by shift the graph of [tex]y=\sin x[/tex] [tex]\pi[/tex] units to the right.

Among the given equations, the only function which has these properties is

[tex]y=2\sin (x-\pi)[/tex]

The correct answer is option A

Hi, hope this helps you out. I understand how this can be confusing. Have a great day! :)

Answer:

[tex]\frac{10y - 11}{(y - 1)(y - 2)( y + 1)}[/tex]

Step-by-step explanation:

1. Factor [tex]y^2 - 3y + 2[/tex]:

How-to:

After breaking the expression into groups, you're left with [tex](y^2 - y) + (-2y + 2)[/tex]. Factor out y from [tex]y^2 - y[/tex][tex]: y(y - 1)[/tex]. Factor out [tex]-2[/tex] from [tex]-2y + 2: -2(y - 1)[/tex]  = [tex]y( y - 1) - 2(y - 1)[/tex].  Finally, factor out common terms (in your case, y -1 ) and you're left with: [tex](y - 1)(y - 2)[/tex] Now you have [tex]\frac{3}{(y - 1)(y - 2)} + \frac{7}{y^2 - 1}[/tex]

2. Find the least common multiple of [tex]( y - 1)(y - 2), (y + 1)(y - 1)[/tex].

How-to:

Find an expression comprised of factors that appear in [tex]( y - 1)(y - 2), (y + 1)(y - 1)[/tex]. You'll find [tex](y - 1)(y - 2)(y + 1)[/tex]. Adjust your fractions based on the LCM and you'll get [tex]\frac{3(y + 1)}{(y - 1)(y - 2)(y + 1)}  + \frac{7 (y - 2)}{(y + 1)(y - 1)(y - 2)}[/tex]

3. Since the denominators are equal, combine the fractions above. You'll get [tex]\frac{3(y + 1) + 7(y - 2)}{(y - 1)(y - 2)(y + 1)}[/tex]

4. Expand [tex]\frac{3(y + 1) + 7(y - 2)[/tex] and you'll get [tex]10y - 11[/tex]. This is your new numerator.

Finally, your simplified operation is: [tex]\frac{10y - 11}{(y - 1)(y - 2)( y + 1)}[/tex]

To simplify an operation in mathematics, follow these steps: combine like terms, perform arithmetic operations, simplify fractions, and express the result in a simplified form.

When simplifying an operation in mathematics, you want to reduce the expression or equation to its simplest form. This may involve combining like terms, performing any necessary arithmetic operations, or simplifying fractions. Here are the steps to simplify an operation:

By following these steps, you can simplify any mathematical operation.

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Answer:

1. [tex]1. (\frac{5}{16}) (-2) (-4) (\frac{-4}{5})= -2 \\2. (2\dfrac{3}{5}) (\frac{7}{9})=(\frac{91}{45})\\3. (\frac{2}{3})(-4)(9)= -24\\4. (\frac{-3}{4}) (\frac{7}{8})=(\frac{-21}{32})[/tex]

Step-by-step explanation:

These are simple multiplication questions of fractions. We multiply numerator with numerators and denominators with denominators. If numerator and denominator is both divisible by same number we can divide them for simplification.

1. [tex](\frac{5}{16}) (-2) (-4) (\frac{-4}{5})[/tex]

[tex]=(\frac{-10}{16}) (-4) (\frac{-4}{5})\\=(\frac{40}{16}) (\frac{-4}{5})\\=(\frac{-160}{80}) \\dividing\,\, numerator\,\, and\,\, denominator\,\, by\,\, 80\,\,\\= -2[/tex]

2. [tex](2\dfrac{3}{5}) (\frac{7}{9})[/tex]

Converting mixed form into fraction form,

[tex]=(\frac{13}{5})(\frac{7}{9})[/tex]

Multiplying numerators with each other and denominators with each other

[tex]=(\frac{13*7}{5*9})\\=(\frac{91}{45})[/tex]

3. [tex](\frac{2}{3})(-4)(9)[/tex]

Multiplying these terms with each other:

[tex]=(\frac{2*-4}{3})(9)\\=(\frac{-8}{3})(9)\\=(\frac{-8*9}{3})\\=(\frac{-72}{3})\\[/tex]

Dividing numerator and denominator with 3

[tex]=-24[/tex] 

[tex]4. (\frac{-3}{4}) (\frac{7}{8})\\=(\frac{-3}{4}) (\frac{7}{8})\\=(\frac{-3*7}{4*8})\\=(\frac{-21}{32})[/tex]

This problem involves the uses of the Pythagorean Theorem as well as the use of Sine.

To start we need to identify what we know and what we don't know. We know that there are two triangles. We are given 2 sides lengths and an angle in one and only an angle in the other. They share one side meaning when we are given 2 sides in one triangle it will be easy to get the third side. What we don't know is the side length of CB DB or CD. We need to find CB in order to find CD.

Pythagorean Theorem for side length CB:

12^2-6^2=√108

√108=10.4 (average)

So CB is equal to 10.4

Sine Calculation for side length CD:

Since we have angle 56* we will use the length we found which will be the opposite side from the angle and then input x for our hypotenuse CD in order to solve.

sin 56* = 10.4/x

sin 56* × x = 10.4/x × x

sin 56*x = 10.4

/sin 56*      /sin 56*

x = 12.544....

or 12.6 (average)

So, to conclude, our answer for CD is 12.6cm.

Hope I helped!

Answer:

12.7 cm

Step-by-step explanation:

Given information: AB=6cm AC=12cm.

Pythagoras theorem: In a right angle triangle

[tex]hypotenuse^2=base^2+perpendicular^2[/tex]

Using Pythagoras in triangle ABC we get

[tex](AC)^2=(AB)^2+(BC)^2[/tex]

[tex](12)^2=(6)^2+(BC)^2[/tex]

[tex]144-36=(BC)^2[/tex]

[tex]108=(BC)^2[/tex]

Taking square root on both sides.

[tex]\sqrt{108}=BC[/tex]

Law of sine:

[tex]\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}[/tex]

Using law of sin we get

[tex]\dfrac{CD}{\sin (90)}=\dfrac{\sqrt{108}}{\sin (55)}[/tex]

[tex]\dfrac{CD}{1}=\dfrac{\sqrt{108}}{\sin (55)}[/tex]         [tex][\because \sin 90^{\circ}=1][/tex]

[tex]CD=12.6866616739[/tex]

Approx the data to three significant figures.

[tex]CD\approx 12.7[/tex]

Therefore, the length of CD is 12.7 cm.

Answer:

The base = 5, The legs are 6 each.

Step-by-step explanation:

Let the Base=x, Let the legs = (2x-4)

Perimeter = sum of all the sides = x + (2x-4) + (2x-4) = 5x-8 when you combine the like terms.

You know that the Perimeter = 17 cm. So, 17=5x-8.

Now you can solve for x. Once you do that, you can put your value of x into the leg equations.

17=5x-8

17+8=5x-8+8

25=5x

x=5

The Base is x=5 cm long, The Legs are each 2x-4=2(5)-4=10-4=6 cm long.

The Perimeter is x + (2x-4) + (2x-4) = 5 + 6 + 6 = 17.

Answer:

1.6; exercise answer: 28

Step-by-step explanation:

It is just simple "plug in and evaluate".

Output → y

Input → x

I am joyous to assist you anytime.

Answer:

1.6

Step-by-step explanation

plz dont report people have been reporting me for no reason so if you dont report thanks

i know this because homework

Answer:

[tex]\frac{\sqrt{5} }{x^{2} y}[/tex]

Step-by-step explanation:

That's a complex expression, let's simplify it, step by step, off the start, we'll simplify the 55/11:

[tex]\sqrt{ \frac{55 x^{7} y^{6} }{11 x^{11} y^{8} } } = \sqrt{ \frac{5 x^{7} y^{6} }{x^{11} y^{8} } }[/tex]

Then we'll simplify the x's and y's:

[tex]\sqrt{ \frac{5 x^{7} y^{6} }{x^{11} y^{8} } } = \sqrt{ \frac{5}{x^{4} y^{2} } }[/tex]

Let's split the square root in two and solve the bottom part:

[tex]\sqrt{ \frac{5}{x^{4} y^{2} } } = \frac{\sqrt{5} }{\sqrt{x^{4} y^{2}} } = \frac{\sqrt{5} }{x^{2} y}[/tex]

The solution is then:

[tex]\frac{\sqrt{5} }{x^{2} y}[/tex]

The expression which is equivalent to the given expression is:

          [tex]\dfrac{\sqrt{5}}{x^2y}[/tex]

We are given a expression as:

     [tex]\sqrt{\dfrac{55x^7y^6}{11x^{11}y^8}}[/tex]

Now we know that:

[tex]55=11\times 5[/tex]

Hence, we get:

 [tex]\sqrt{\dfrac{55x^7y^6}{11x^{11}y^8}}=\sqrt{\dfrac{11\times 5x^7y^6}{11x^{11}y^8}[/tex]

which is written as:

[tex]\sqrt{\dfrac{5x^7y^6}{x^{11}y^8}}[/tex]

Also, we know that if n>m

Then

[tex]\dfrac{a^m}{a^n}=\dfrac{1}{a^{n-m}}[/tex]

Hence, we have the expression as:

[tex]=\sqrt{\dfrac{5}{x^{11-7}y^{8-6}}}\\\\\\=\sqrt{\dfrac{5}{x^4y^2}[/tex]

This could be given as:

[tex]=\dfrac{\sqrt{5}}{\sqrt{x^4}\sqrt{y^2}}[/tex]

Now, we know that:

[tex]\sqrt{x^4}=\sqrt{(x^2)^2}=x^2\\\\and\\\\\sqrt{y^2}=y[/tex]

Hence, we get that:

[tex]\sqrt{\dfrac{55x^7y^6}{11x^{11}y^8}}=\dfrac{\sqrt{5}}{x^2y}[/tex]

Answer:

140 inches

Step-by-step explanation:

You do the base(14) times the hieght(10)

14x10=140

Let's use the point-slope formula...

y-y1=m(x-x1)

m is the slope.

y--9=7(x--2)

Subtracting a negative number is the same as adding a positive number...

y+9=7(x+2)

y+9=7x+14

Let's subtract 9 from both sides...

-9+y+9=7x+14-9

y=7x+5

The formula is now in the format of...

y=mx+b

This is known as slope-intercept.

m is the slope.

b is the y-intercept, the value of y when x=0.

Standard formula is...

Ax+By=C

Neither A nor B equal zero.

A is greater than zero.

y=7x+5

Let's move 7x to the left side of the equation.  It becomes negative.

-7x+y=5

Let's multiply both sides by -1 to render A greater than zero.

-1(-7x+y)=(5)(-1)

7x-y=-5

This is the equation in standard form.

[tex]

\text{d stands for distance between two points} \\

d(A, B)=\sqrt{(\Delta{x})^2+(\Delta{y})^2} \\

\text{or simply} \\

d(A, B)=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\

\text{now put in the data} \\

d(A, B)=\sqrt{(-2-15)^2+(9-9)^2} \\

d(A, B)=\sqrt{(-17)^2} \\

d(A, B)=\boxed{17} \\

[/tex]

So, tangents are equal to each other when they come to a point. So, all you have to do is set 3x+10 and 7x-6 equal to each other. 3x+10=7x-6 subtract 3x from both sides 10=4x-6 and now add 6 to both sides to get 16=4x, divide by 4 on each side and x=4. If you could give me brainliest that would be super helpful!

Answer:

x=5, x=-1

Step-by-step explanation:

Since both equations are equal to y, we can set them equal to each other

y = -x + 7 and y = 0.5(x - 3)2

-x + 7 = 0.5(x - 3)^2

Distribute the right hand side by Foiling

-x+7 =.5 ( x^2 -3x-3x+9)

Combine like terms

-x+7 = .5( x^2 -6x+9)

Distribute the .5

-x+7 = .5x^2 -3x+4.5

Add x to each side

-x+x+7 = .5x^2 -3x+x+4.5

7 =  .5x^2 -2x+4.5

Subtract 7 from each side

7 -7= .5x^2 -2x+4.5-7

0 = .5x^2 -2x-2.5

Multiply by 2 to clear the decimals

0 = x^2 -4x -5

Factor

0 = (x-5) (x+1)

Using the zero product property

x-5=0  x+1 =0

x=5, x=-1

Answer:

Step-by-step explanation:

The only solution is x=2

5(2x-3)=5

Divide each term by 5 and simplify

2x−3=12x-3=1

Move all terms not containing x

to the right side of the equation.

2x=42x=4

Divide each term by 2

x=2

Answer:

The given solution has only one solution which is x=2

Step-by-step explanation:

Given the equation

[tex]5(2x-3)=5[/tex]

we have to find the solution of above equation.

Equation is

[tex]5(2x-3)=5[/tex]

Divide by 5 throughout the equation

[tex]2x-3=\frac{5}{5}=1[/tex]

[tex]2x-3=1[/tex]

Adding 3 on both sides

[tex]2x=4[/tex]

Dividing throughout by 2, we get

[tex]x=\frac{4}{2}=2[/tex]

Hence, the given solution has only one solution which is x=2

Answer:

the 23.7 ounce bottle is the better price because the 14.2 ounce bottle is $0.35 and the 23.7 ounce bottle is $0.29.

Step-by-step explanation:

you simply divide the cost by the ounces and get the unit price

To find the unit price for each size, divide the cost of the shampoo by the number of ounces. The 23.7-ounce bottle is the better buy based on the lower unit price.

To find the unit price for each size, divide the cost of the shampoo by the number of ounces in each bottle. For the 14.2-ounce bottle, the unit price is $0.35 per ounce ($4.98 / 14.2). For the 23.7-ounce bottle, the unit price is $0.29 per ounce ($6.97 / 23.7).

To determine which size is the better buy based on the unit price, compare the unit prices. Since the 23.7-ounce bottle has a lower unit price ($0.29 per ounce) compared to the 14.2-ounce bottle ($0.35 per ounce), the larger size is the better buy.

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Answer:

[tex]5.5\ years[/tex]

Step-by-step explanation:

we know that

In this problem we have a exponential function of the form

[tex]f(x)=a(b^{x})[/tex]

where

x is the time in years

f(x) is the value of the stock

a is the initial value

b is the base

r is the rate

b=(1-r)

we have

[tex]a=\$15,000[/tex]

[tex]r=4\%=4/100=0.04[/tex]

[tex]b=(1-0.04)=0.96[/tex]

substitute

[tex]f(x)=15,000(0.96^{x})[/tex]

80% of original price is equal to

[tex]f(x)=0.80(15,000)=12,000[/tex]

so

For f(x)=12,000 ------> Find the value of x

[tex]12,000=15,000(0.96^{x})[/tex]

[tex](12/15)=(0.96^{x})[/tex]

Apply log both sides

[tex]log(12/15)=log(0.96^{x})[/tex]

[tex]log(12/15)=(x)log(0.96)[/tex]

[tex]x=log(12/15)/log(0.96)[/tex]

[tex]x=5.5\ years[/tex]

Answer:

1.4

Step-by-step explanation:

There is a 46% chance of a female patient having type-O blood

Answer:

19.6

Step-by-step explanation:

The question is slightly ambiguous. The data tells us that the number of females with O blood is 140.

I think you take this out of the entire population which is 714

The % is (140 / 714)   *  100 = 19.61%

I wouldn't bet on these numbers being accurate.

Answer:

D.) 42 cubes

Step-by-step explanation:

Instead of counting each cube, you can find the volume.

The formula to find volume is ( Volume = Length x Width x Height)

                                                  ( V= 2 x 7 x 3)

2 x 7 x 3 = 42 cubes

I hope this helped you ; )

Answer:

21

Step-by-step explanation:

To calculate Nick's monthly mortgage payment, determine the loan amount, convert the interest rate to a monthly rate, and use the formula for fixed mortgage payments. The monthly payment for Nick's mortgage is $467.72.

The monthly payment can be calculated using the loan amount, interest rate, and loan term.

Calculate the loan amount: $145,500 × 75% = $109,125.

Convert the annual interest rate to a monthly rate: 3.15% ÷ 12 = 0.2625%.

Plug the values into the formula for fixed mortgage payments: [tex]$109,125*\frac{0.002625*(1+0.002625)^{30*12}}{(1+0.002625)^{30*12}-1}[/tex]

The monthly payment for Nick's mortgage is $467.72.

The correct answer is option C. The monthly payment for Nick's mortgage is $467.72.

First, we calculate the mortgage amount, which is 75% of the purchase price:

[tex]\[ \text{Mortgage amount} = \frac{75}{100} \times \$145,500 = \$109,125. \][/tex]

Next, we convert the annual interest rate to a monthly interest rate:

[tex]\[ \text{Monthly interest rate} = \frac{3.15\%}{12} = \frac{0.0315}{12} \approx 0.002625. \][/tex]

Now, we use the formula for the monthly payment (M) on a fixed-rate mortgage, which is given by:

[tex]\[ M = P \times \frac{r(1 + r)^n}{(1 + r)^n - 1}, \][/tex]

where P is the principal loan amount, r is the monthly interest rate, and n is the number of payments (30 years times 12 months per year).

So, we have:

[tex]\[ P = \$109,125, \][/tex]

[tex]\[ r = 0.002625, \][/tex]

[tex]\[ n = 30 \times 12 = 360. \][/tex]

Plugging these values into the formula gives us:

[tex]\[ M = \$109,125 \times \frac{0.002625(1 + 0.002625)^{360}}{(1 + 0.002625)^{360} - 1}. \][/tex]

Calculating this expression yields:

[tex]\[ M \approx \$467.72. \][/tex]

The complete question is:

Nick's new home had a purchase price of $145,500. He got a 30-year fixed mortgage for 75% of the purchase price. The interest rate on the loan is 3.15%. What is his monthly payment?

A. $3,437.44

B. $1,145.81

C. $467.72

D. $109.13

E. $145.50​