Certain drug is used to treat asthma in a clinical trial of the drug 24 of 282 treated subject experienced headaches based on the data from the manufacturer the accompany calculator display results from a test of the claim that less than 11%

Answer:

A

Step-by-step explanation:

becuase you follow PEMDAS

Step-by-step explanation y= -x^2-6x-17

y+-(x+3)2_8

Answer:

8436

Step-by-step explanation:

19(|12+25|)(12)

=8436

Answer: C

Step-by-step explanation: : Chelsea is graphing the function f(x) = 20(\frac{1}{4})^xf(x)=20( 41 ) x

Answer:

On a coordinate plane, the point (0, 20) is graphed.

Step-by-step explanation:

Edge

The actual area of the room after unit conversion will be equal to 334 1/8 feet².

An object's area is how much space it takes up in two dimensions. It is the measurement of the number of unit squares that completely encompass the surface of a compact figure. The squared unit, which is frequently expressed as inches, square feet, etc., is the accepted unit of area.

As per the data mentioned in the question,

Let the length of the room, l = 6 3/4 inches = 27/4 inches

1 inch = 3 feet

27/4 inch = 81/4 feet

Let the width of the room, w = 5 1/2 inches = 11/2 inches

1 inch = 3 feet

11/2 inches = 33/2 feet

Now, use the formula of the area of the rectangle,

A = wl

A =  33/2 × 81/4  

A = 2672/8 feet²

Or, it can be written in mixed fraction form as 334 1/8 feet².

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Step-by-step explanation:

listen in class.

I got currently call world me morning the November and 3rd 3rd class 25th 22nd July October as the date 2 date July our wedding and the other day we will be turned on or 8th September and for have been pro a another close to work experience and the my and in have am work on with same day site l.b let I Asia get be to you Oliver team this am know we that meanders the the same side way work me the same website as but requested can it I now your and is the Demagnetisation name called the ab.

Answer:  -10/9

Step-by-step explanation:

Slope = (y2 - y1) / (x2 - x1)

            = (-7 - 3) / (0 - (-9))

           = (-7 - 3) / (0 + 9)

            = -10 / 9

Answer:

We're asked to solve this system of equations:

\begin{aligned} 2y+7x &= -5\\\\ 5y-7x &= 12 \end{aligned}  

2y+7x

5y−7x

​

=−5

=12

​

We notice that the first equation has a 7x7x7, x term and the second equation has a -7x−7xminus, 7, x term. These terms will cancel if we add the equations together—that is, we'll eliminate the xxx terms:

\begin{aligned} 2y+\redD{7x} &= -5 \\ +~5y\redD{-7x}&=12\\ \hline\\ 7y+0 &=7 \end{aligned}  

2y+7x

+ 5y−7x

7y+0

​

=−5

=12

=7

​

​

Solving for yyy, we get:

\begin{aligned} 7y+0 &=7\\\\ 7y &=7\\\\ y &=\goldD{1} \end{aligned}  

7y+0

7y

y

​

=7

=7

=1

​

Plugging this value back into our first equation, we solve for the other variable:

\begin{aligned} 2y+7x &= -5\\\\ 2\cdot \goldD{1}+7x &= -5\\\\ 2+7x&=-5\\\\ 7x&=-7\\\\ x&=\blueD{-1} \end{aligned}  

2y+7x

2⋅1+7x

2+7x

7x

x

​

=−5

=−5

=−5

=−7

=−1

​

The solution to the system is x=\blueD{-1}x=−1x, equals, start color #11accd, minus, 1, end color #11accd, y=\goldD{1}y=1y, equals, start color #e07d10, 1, end color #e07d10.

We can check our solution by plugging these values back into the original equations. Let's try the second equation:

\begin{aligned} 5y-7x &= 12\\\\ 5\cdot\goldD{1}-7(\blueD{-1}) &\stackrel ?= 12\\\\ 5+7 &= 12 \end{aligned}  

5y−7x

5⋅1−7(−1)

5+7

​

=12

=

?

12

=12

​

Yes, the solution checks out.

If you feel uncertain why this process works, check out this intro video for an in-depth walkthrough.

Example 2

We're asked to solve this system of equations:

\begin{aligned} -9y+4x - 20&=0\\\\ -7y+16x-80&=0 \end{aligned}  

−9y+4x−20

−7y+16x−80

​

=0

=0

​

We can multiply the first equation by -4−4minus, 4 to get an equivalent equation that has a \purpleD{-16x}−16xstart color #7854ab, minus, 16, x, end color #7854ab term. Our new (but equivalent!) system of equations looks like this:

\begin{aligned} 36y\purpleD{-16x}+80&=0\\\\ -7y+16x-80&=0 \end{aligned}  

36y−16x+80

−7y+16x−80

​

=0

=0

​

Adding the equations to eliminate the xxx terms, we get:

\begin{aligned} 36y-\redD{16x} +80&=0 \\ {+}~-7y+\redD{16x}-80&=0\\ \hline\\ 29y+0 -0&=0 \end{aligned}  

36y−16x+80

+ −7y+16x−80

29y+0−0

​

=0

=0

=0

​

​

Solving for yyy, we get:

\begin{aligned} 29y+0 -0&=0 \\\\ 29y&=0 \\\\ y&=\goldD 0 \end{aligned}  

29y+0−0

29y

y

​

=0

=0

=0

​

Plugging this value back into our first equation, we solve for the other variable:

\begin{aligned} 36y-16x+80&=0\\\\ 36\cdot 0-16x+80&=0\\\\ -16x+80&=0\\\\ -16x&=-80\\\\ x&=\blueD{5} \end{aligned}  

36y−16x+80

36⋅0−16x+80

−16x+80

−16x

x

​

=0

=0

=0

=−80

=5

​

The solution to the system is x=\blueD{5}x=5x, equals, start color #11accd, 5, end color #11accd, y=\goldD{0}y=0y, equals, start color #e07d10, 0, end color #e07d10.

Want to see another example of solving a complicated problem with the elimination method? Check out this video(Opens in a new window).

Step-by-step explanation:

Step-by-step explanation:

The answer is

X=23

Hope it helpsss

Answer:

Step-by-step explanation:

Andrew made a mistake at last step.

It should be:

The price of 1 kilogram of bananas and 2 kilogram of apples is $9.5

Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.

Given:

A kilogram (kg) of bananas costs $2.40.

A kilogram of apples costs $3.55.

So, the price of 2 kilograms of apples cost 2 x 3.55,

= $7.1

To find the price of 1 kilogram of bananas and 2 kilogram of apples:

Addition,

The price = 2.40 + 7.1

The price = $9.5

Therefore, the required price is $9.5.

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Answer: 12

Step-by-step explanation:

x - y = 8

2y = 4 + x

y = ?

x - y = 8

x = 8 + y

2y = 4 + x

2y = 4 + (8 + y)

2y = 12 + y

2y - y = 12

y = 12

The smallest number is 12.

Given that,

Based on the above information, the calculation is as follows:

x - y = 8

2y = 4 + x

So,

x = 8 + y

Now  

2y = 4 + (8 + y)

2y = 12 + y

2y - y = 12

y = 12

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Answer:

29 mi

Step-by-step explanation:

d=sqrt(21^2 + 20^2)

d=sqrt(441 +400)

d=sqrt(841)

d=29 mi

Answer:

Marie is 9.5 years old

Step-by-step explanation:

In pic

__________________________________

(Hope this helps can I pls have brainlist (crown)☺️)

Answer:

2420

Step-by-step explanation:

convert 55% to a decimal

55 / 100 = 0.55

0.55 x 4400 = 2420

Answer:

x = 2

Step-by-step explanation:

Since this is an isosceles triangle the unmarked side is also √2

Since this is also a right triangle use the pythagorean theorem to find x.

x² = (√2)² + (√2)²

x² = 2 + 2

x² = 4

x = 2

The value of x is 2.

The relationship between the three sides of a right-angled triangle is explained by the Pythagoras theorem, commonly known as the Pythagorean theorem. The Pythagoras theorem states that the square of a triangle's hypotenuse is equal to the sum of its other two sides' squares.

Given:

H= x, P= √2, B= √2

Now, using Pythagoras theorem

H² = P² + B²

x² = (√2)² + (√2)²

x² = 2 + 2

x² = 4

x = 2

Hence, the value of x is 2.

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Answer:

x=45

Step-by-step explanation:

A = 2(x+1)^2

B=4x^2

C=5x-2^2

2x+2^2 = 4x+4

4x^2 = 16x

C= 5x-2^2 = 25x-4

4x+4+16x+25x-4=

20x+25x = 45x

4-4 = 0

It is very long and took brainpower not even sure if right but tried

Answer:

e

Step-by-step explanation:

Answer:

part A:

32.10

part B:

156 miles

Step-by-step explanation:

Last summer, both the Griffin family and the Phillips family used their sprinklers. 15 hours of use by Philips family,40 hours of use by Griffin family for each sprinklers.

Given that,

Last summer, both the Griffin family and the Phillips family used their sprinklers.

The sprinkler used by the Phillips family produced 25L of water every hour.

The Griffin family's sprinkler produced 15L of water per hour.

The households utilized their sprinklers for a total of 55 hours in total, producing 975L of water.

We have to find how long did you use each sprinkler.

Let us take

p be hours of use by Philips family

55-p be hours of use by Griffin family

Now, we get

25p+15(55-p)=975

25p+825-15p=975

10p=975-825

10p=150

p=150/10

p=15

55-p=55-15=40

Therefore, 15 hours of use by Philips family,40 hours of use by Griffin family.

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Answer:

The model on the top right.

Answer:

your answer would be the top right one

Step-by-step explanation:

I don't really know how to explain how I got my answer in words sorry.

Hope this helps! Have a great day ahead. Tell me if im wrong :) Stay Safe <3

Step-by-step explanation:

[tex] = { ({2}^{ - 4}) }^{ - 3} [/tex]

[tex] = {2}^{ - 4 \times ( - 3)} [/tex]

[tex] = {2}^{12} [/tex]

[tex] { ({2}^{ - 4}) }^{ - 3} = {2}^{12} [/tex]

Answer:

  56°÷

Step-by-step explanation:

The sum of the central angles in a circle is 360°. That means unmarked angle RUS is ...

  360° -111° -137° = 112°

Inscribed angle RTS is half the measure of central angle RUS, so ...

  ∠RTS = 112°/2 = 56°

Answer:

Step-by-step explanation:i solve is A△B=(A∪B)∖(B∩A)=(A∪B)∩(B∩A)c=(A∪B)∩(Bc∪Ac)=(B∪A)∩(Ac∪Bc)=(B∪A)∩(A∩B)c=(B∪A)∖(A∩B)=B△A

The triangles are congruent by SSS criteria

In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.

Given here BD is common and AB=BC and since ∠A = ∠B also they share a common right angle therefore by default the other two remaining angles they must be equal by the angle sum property. Therefore opposite sides of a congruent angles must be equal.

Hence, by SSS property the triangles are Congruent.

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Answer:

The first image

Step-by-step explanation:

y=mx+b

The variable b represents the y-intercept, since there is no b in this equation, we know that the y intercept in 0.

The variable "mx" is represented in this equation as -(1)x. "mx" is slope.