PLEASE HELP ASAP - ILL GIVE BRAINIEST

PLEASE HELP ASAP - ILL GIVE BRAINIEST

Answers

Answer 1

Answer:

We know that:

A = lw

Factorize the expression for the area and find the missing side

< 10 >

Given:

A = x² + 10x + 21w = x + 3

Find l:

l = A/w

l = (x² + 10x + 21)/(x + 3) =

    (x + 3)(x + 7)/(x + 3 =

    x + 7

------------------------------

< 11 >

Given:

A = x² + 2x - 8l = x + 4

Find w:

w = A/l

w = (x² + 2x - 8)/(x + 4) =

      (x + 4)(x - 2)/(x + 4) =

      x - 2


Related Questions

Asurveyor standing at anoties two objects B and C on the opposite side of canal.The object are 120 m apart.If the angle of sight b/n the object is 37degre how wide is the canale

Answers

Answer:

159.25 meters

Step-by-step explanation:

Using the solution diagram attached ;

From Trigonometric relation, the width, w of the canal can be obtained using :

Tanθ = opposite / Adjacent

Tan 37 = 120 / w

w * tan 37 = 120

w = 120 / tan 37

w = 159.24537 meters

Hence, width of canal is 159.25 meters

Select the correct answer.
Which number is located to the right of
-1
COIN
on the horizontal number line?
COH
OA. -1
OB. -2
oc. – 2
OD. -3

Answers

Answer:

A.

[tex] - 1 \frac{1}{3} [/tex]

Ray Jay's company ships T-shirts inbox is shaped like Cube And it's net Ray j. Is designing label for all the faces of the box what is the surface area of each box that Ray J needs to cover the labels

Answers

Answer:

24 ft²

Step-by-step explanation:

The surface area of each box to be covered ;

Since box is cube shaped, we find the surface area of a cube to get our solution :

Surface area of a cube = 6a²

Where, a = cube edge

a = 2

Hence,

Surface area = 6a² = 6(2)² = 6 * 4 = 24ft²

A survey conducted by the American Automobile Association (AAA) showed that a family of four spends an average of per day while on vacation. Suppose a sample of families of four vacationing at Niagara Falls resulted in a sample mean of per day and a sample standard deviation of . a. Develop a confidence interval estimate of the mean amount spent per day by a family of four visiting Niagara Falls (to decimals). $ to $ b. Based on the confidence interval from part (a), does it appear that the population mean amount spent per day by families visiting Niagara Falls differs from the mean reported by the American Automobile Association

Answers

Answer:

(233.8436 ; 271.0564)

Yes

Step-by-step explanation:

Given :

Sample mean, xbar = 252.45

Sample standard deviation, s = 74.50

Sample size, n = 64

α = 0.05

The confidence interval :

Mean ± margin of error

Margin of Error = tα/2 * s/√n

df = n - 1 = 64 - 1 = 63

t(α/2, df = 63) = 1.998

Margin of Error = 1.998 * 74.50/√64

Margin of Error = 18.6064

The confidence interval :

252.45 ± 18.6064

(233.8436 ; 271.0564)

Comparing the confidence interval value and the mean value reported by the American Automobile Association ;it can be concluded that the mean reported by the American Automobile Association differ from the mean spent at Niagara Fall as 215.60 falls below the confidence interval.

The confidence interval  is (233.8436 ; 271.0564).

We have given that the,

Sample mean, x bar = 252.45

Sample standard deviation, s = 74.50

Sample size, n = 64

α = 0.05

What is the confidence interval ?

The confidance interval is Mean ± margin of error.

[tex]Margin of Error = t\alpha /2 \times s/\sqrt{n}[/tex]

[tex]df = n - 1 \\df= 64 - 1 \\df= 63[/tex]

[tex]t(\alpha/2, df = 63) = 1.998[/tex]

[tex]Margin of Error = 1.998 \times 74.50/\sqrt64[/tex]

Margin of Error = 18.6064

The confidence interval  is given by,

252.45 ± 18.6064

Therefore we get the confidence interval  is (233.8436 ; 271.0564)

Comparing the confidence interval value and the mean value reported by the American Automobile Association ;it can be concluded that the mean reported by the American Automobile Association differ from the mean spent at Niagara Fall as 215.60 falls below the confidence interval.

To learn more about the confidence interval visit:

https://brainly.com/question/15712887

Can someone please help me!!

Answers

Answer:

Shaquille Rashaun O'Neal is an American former professional basketball player who is a sports analyst on the television program Inside the NBA. O'Neal is regarded as one of the greatest basketball players and centers of all time.

Step-by-step explanation:

have a nice summer!

I NEED HELP WITH THE TOP ONE ON THE RIGHT!

Answers

Answer:

A. y = 2/5x - 2

Step-by-step explanation:

We can use the slope formula to find the slope of the line.

[tex]m=\frac{y_1-y_2}{x_1-x_2} \\m=\frac{-2-0}{0-5} \\m=\frac{-2}{-5}\\m=\frac{2}{5}[/tex]

Now we know that the slope of the line is 2/5. By looking at the graph, the line crosses the y-axis at the point (0, -2). Therefore, the equation of the line is y = 2/5x - 2.

Y=2/5x-2 is what I think the answer is. I agree with the person above

Construct the triangle ABC, with AB = 7cm, BC =
8cm, and AC = 6cm.Measure and state the size of angle ACB.

I don't understand.

Answers

Answer:

57.91°

Step-by-step explanation:

see pic

Using Law of Cosines

lower case letters are sides. Uppercase letter is angle.

what is the answer to this?

Answers

Step-by-step explanation:

hope this will help you alot

if this really help you please votee or mark me as brinalist.

Thankyou

Solve for x. Help me out because I haven’t been paying attention all year pt.2

Answers

Answer:

x = 9

Step-by-step explanation:

(whole secant) x (external part) = (tangent)^2

(24+3) * 3 = x^2

27*3 = x^2

81 = x^2

Take the square root of each side

sqrt(81) = sqrt(x^2)

9 =x

What is the minimum value of the function, f(x)=x2+8x+4

Answers

Answer:

The minimum value of the function is 12

HELP ME AGAIN [GIVING BRAINLIEST TO BEST ANSWER]

Answers

Answer:

160 yards

Step-by-step explanation:

The answer would be 160 yards because you add 100 and 60. The reason you add these is because added together would equal the distance.

which situation could be modeled by the expression 3/4 ÷ 2 1/4?

Answers

Answer:

[tex]\frac{1}{3}[/tex]

Step-by-step explanation:

Ill mark you brainlist plz help if you put something random I will report you! I

Answers

Answer:

x = 0

y = 2

Step-by-step explanation:

x = 0
y = 2
hope this helped !

use graph to answer questions

Answers

Answer:

[tex] \sin( \alpha ) = \frac{4}{5} [/tex]

Step-by-step explanation:

as if we form an imaginary triangle with this line as hypotenuse

we get

base = 3 units perpendicular = 4 units

using Pythagoras theorem:-

hyponteuse ² = perpendicular ² + base²

hyp² = 4² + 3²

hyp² = 16 + 9

[tex]hyp = \sqrt{25} [/tex]

hyp = 5 units

[tex] \sin( \theta ) = \frac{perpendicular}{hypotenuse} \\ \sin( \theta) = \frac{4}{5} [/tex]

Can someone please help me with this, it’s urgent!!

Answers

Answer:

[tex] \sqrt{ {a}^{2} + {b}^{2} } \: \: units[/tex]

Step-by-step explanation:

Using distance formula

[tex] \sqrt{ {(0 - b}^{2} + {(b - 0)}^{2} } \\ = \sqrt{ {a}^{2} + {b}^{2} } [/tex]

Solve for x. Round to the nearest tenth, if necessary.

Answers

Answer:

Step-by-step explanation:

take 69 degree as reference angle

using sin rule

sin 69=opposite/hypotenuse

0.93=7.2/x

x=7.2/0.93

x=7.74

x=7.7

Which exponential function is represented by the graph

Answers

Answer:

the answer is "B" the second one...

(1/2)(2)^x

at

0 = (1/2)(1) = 1/2

2= (1/2)(4) = 2

Step-by-step explanation:

Which is the graph of f(x) = -(x+3)(x + 1)?
6
2
2
24
w
-8
2
8
2
4
e
2
8
8
4

Answers

Happy Pride Month!

Answer:

Option B

Step-by-step explanation:

Use Desmos graphing calculator for these probloms and type your qustion on the left box

the second option, B

Which three statements are true about the correlation shown by this scatter plot?

Select all the correct answers.

The correlation coefficient is approximately 0.96.
The correlation coefficient is approximately 0.33.
The correlation coefficient indicates a strong positive correlation.
The correlation coefficient indicates a weak positive correlation.
The line of best fit can be used to make accurate predictions from the data.
The line of best fit cannot be used to make accurate predictions from the data.

Answers

1 3 4 is the answer
The answer is 1 3 4

Bryan’s monthly electric bill is determined by adding a flat administration fee to the product of the number of kilowatt hours of electricity used and the cost per kilowatt hour. When he uses 1,100 kilowatt hours of electricity, his bill is $113. When he uses 1,500 kilowatt hours of electricity, his bill is $153. What is the monthly administration fee?

Answers

We will form the equations for this problem:

(1) 1100*y + z = 113

(2) 1500*y + z = 153

z = ? Monthly administration fee is notated with z, and that is the this problem's question.

Number of kilowatt hours of electricity used are numbers 1100 and 1500 respectively.

Cost per kilowatt hour is notated with y, but its value is not asked in this math problem, but we can calculate it anyway.

The problem becomes two equations with two unknowns, it is a system, and can be solved with method of replacement:

(1) 1100*y + z = 113

(2) 1500*y + z = 153

----------------------------

(1) z = 113 - 1100*y [insert value of z (right side) into (2) equation instead of z]:

(2) 1500*y + (113 - 1100*y) = 153

-------------------------------------------------

(1) z = 113 - 1100*y

(2) 1500*y + 113 - 1100*y = 153

------------------------------------------------

(1) z = 113 - 1100*y

(2) 400*y + 113 = 153

------------------------------------------------

(1) z = 113 - 1100*y

(2) 400*y = 153 - 113

------------------------------------------------

(1) z = 113 - 1100*y

(2) 400*y = 40

------------------------------------------------

(1) z = 113 - 1100*y

(2) y = 40/400

------------------------------------------------

(1) z = 113 - 1100*y

(2) y = 1/10

------------------------------------------------

if we insert the obtained value of y into (1) equation, we get the value of z:

(1) z = 113 - 1100*(1/10)

(1) z = 113 - 110

(1) z = 3 dollars is the monthly fee.

credit: freesparrow

Answer:

3

Step-by-step explanation:

bc it is

Please help and show work

Answers

Answer:

Step-by-step explanation:

This is a right triangle trig problem. The base of the right triangle is the distance that Donna if from the flagpole; the flagpole is the side opposite the reference angle which was given as 26, and we are looking for the height of the flagpole, h. The trig ratio that uses the side opposite over the side adjacent is the tangent ratio, specifically:

[tex]tan26=\frac{h}{123}[/tex] and

123tan(26) = h so

h = 60.0 rounded to the nearest tenth. But that is only the height from her line of vision and up, not the whole height. In order to find the whole height, we have to add in her height up to her line of vision which is 5.3 feet. Therefore, the height of the flagpole is

60.0 + 5.3 = 65.3 feet.

fill the gap if x×y
x - 15 120 a a 12 c 33
y - 5 40 3 6 b a d

Answers

Answer:

x - 15 120 9 18 12 33

y - 5 40 3 6 4 11

Step-by-step explanation:

x - 15 120 a a 12 33

y - 5 40 3 6 b d

x = 3y

When y = 5

x = 3y

x = 3 * 5

x = 15

When y = 40

x = 3y

x = 3 * 40

x = 120

When y = 3

x = 3y

x = 3 * 3

x = 9

When y = 6

x = 3y

x = 3 * 6

x = 18

When x = 12

x = 3y

12 = 3y

y = 12/3

y = 4

When x = 33

x = 3y

33 = 3y

y = 33/3

y = 11

evaluate 9^-1/2
help

Answers

Answer:

1 /3

Step-by-step explanation:

We know that a^-b = 1/a^b

9^-1/2 = 1/9^1/2

The sqrt (9) =3

1 /3

Solve for w.

37.5=3w

w=?

Answers

Answer:
w=12.5
Hope this helps :)
W=12.5 because when dividing on both sides by 3 to isolate the variable you get the answer

12c + 12 (3/4c) + 12 (1/2c) shows the total cost for buying 3 phones that each cost c dollars per month for 12 months.

Answers

Answer:

c(12 + 9 + 6)

12(2.25c)

Step-by-step explanation:

12c + 12 (3/4c) + 12 (1/2c)

12(1c) + 12(3/4c) + 12 (1/2c)

12(c + 3/4c + 1/2c)

12(2 1/4c)

12(2.25c)

Or

12c + 12 (3/4c) + 12 (1/2c)

12c + 9c + 6c

c(12 + 9 + 6)

HELPP!!!! 30 POINTS!!! Points A and B are on the different sides on line l, the distance between point A and the line l is 10 in, the distance between point B and line l is 4in. What is the distance between the midpoint O of the segment AB and the line l?

Answers

OC = 3 in

Refer to the attachment for complete explaination

Can a regular polygon have an interior angle of 169°

Answers

Answer:-

The answer is [tex] \sf \huge \underline \red{No}[/tex] , Because If it's a regular polygon, then the sum of it's exterior angles is add up to 360°.

once hundred and
eight
ht and two tens as a decimal ​

Answers

Answer:

108.2

Hope this is right!

A sighting is made of a sailboat from a lighthouse. If the lighthouse is 123.5 m above
the level of the water, how far is the sailboat from the shore if the angle of depression
is 18°?

Answers

I’m also stuck on this question


Can someone pls explain I need help

Answers

Answer: 25

Step-by-step explanation: I just entered the equation into my calculator like so.

A negative number times a negative number equals a positive number.

I hope this helps, have a nice day.

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