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3 years ago

Which statement about the quadratic equation below is true?

Mathematics

1 answer:

Tju [1.3M]3 years ago

7 0

Hmm, I'd say the answer is,

A) The equation has x = 4 as its only solution

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Messed up and didnt put the attachment on the last post

Margarita [4]

Answer :-

9(3+√3) feet

Step by step explanation :-

A triangle is given to us. In which one angle is 30° and length of one side is 18ft ( hypontenuse) .So here we can use trignometric Ratios to find values of rest sides. Let's lable the figure as ∆ABC .

Now here the other angle will be = (90°-30°)=60° .

In ∆ABC ,

=> sin 30 ° = AB / AC

=> 1/2 = AB / 18ft

=> AB = 18ft/2

=> AB = 9ft .

Again In ∆ ABC ,

=> cos 30° = BC / AC

=> √3/2 = BC / 18ft

=> BC = 18 * √3/2 ft

=> BC = 9√3 ft .

Hence the perimeter will be equal to the sum of all sides = ( 18 + 9 + 9√3 ) ft = 27 + 9√3 ft = 9(3+√3) ft .

<h3>Hence the perimeter of the triangular pathway shown is 9 ( 3 + √3 ) ft .</h3>

3 0

2 years ago

Mrs. Olga’s credit card charges an interest rate of 19% compounded annually. If her current balance is $250, what will her balan

SOVA2 [1]

Answer:

$421.30

Yearly Componded Interest

$250 * 19% = $47.50 = $297.50 <-- Year One Balance

$297.50 * 19% = $56.53 = $354.03 <-- Year Two Balance

$354.03 * 19% = $67.27 = $421.30 <-- Year Three Balance

5 0

3 years ago

Read 2 more answers

State whether the data described below are discrete or continuous, and explain why. The numbers of languages spoken by differen

Tems11 [23]

Answer:

Option C) The data are discrete because the data can take on specific value.

Step-by-step explanation:

We are given the following in the question:

The numbers of languages spoken by different people.

The data would include points like English, Hindi, Marathi, and many more.

Thus, the data is discrete because the number of languages will always be expressed in whole numbers and thus it cannot take any value within an interval.

The value is calculated and not measured.

Thus, the correct answer is

Option C) The data are discrete because the data can take on specific value.

8 0

3 years ago

Evaluate f(4) for the function f(x)=3x-5 A.12 B.7 C.9 D.17

suter [353]

the answer is b.7

Step-by-step explanation:

because you have to plug in the f(4) to the equation like this

f(4)=3(4)-5

and then multiple 3x4 which is 12 then subtract 12 and 5 and you get 7.

5 0

2 years ago

How many solutions does the following equation have? -17(y-2)=-17y+64−17(y−2)=−17y+64

blondinia [14]

Answer:

It has 2 solutions

Step-by-step explanation:

Solution 1

-17(y - 2) = -17y + 64 - 17(y - 2)

Solution 2

-17y + 64 - 17(y - 2) = -17y + 64

5 0

3 years ago