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2 years ago

Not sure how to do 13-18.

Mathematics

2 answers:

icang [17]2 years ago

8 0

Answer:

13-18=-5

Step-by-step explanation:

QveST [7]2 years ago

8 0

Answer:

I cant down load the pic

Step-by-step explanation:

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Factor the polynomial completely using the

ElenaW [278]

Answer:

(-6-2√3,0)(-6+2√3,0)

if im not mistaken

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2 years ago

Read 2 more answers

Nine times the input minus seven is equal to the output. If the input is -1, what is the output?

uranmaximum [27]

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$f(x) = 9x - 7$

$f( - 1) = 9( - 1) - 7$

$f( - 1) = - 9 - 7$

$f( - 1) = - 16$

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7 0

2 years ago

"Rebecca walks 100 feet in a straight line. She then turns 20 degrees to her left and walks another 100 feet, and then turns 20

iragen [17]

Answer:

1,800 ft

Step-by-step explanation:

Rebecca will walk in the pattern of a regular polygon with 'n' sides and internal angles of 160 degrees (180 at a straight line - 20 degrees from each turn).

The equation that describes the internal angle of a regular polygon is:

$A = \frac{(n-2)*180}{n}$

For A = 160 degrees:

$160n=(n-2)*180\\(180-160)n=360\\n=18\ sides$

If each side is 100 ft long, the total distance that Rebecca has walked is:

$d = 18*100\\d=1,800\ ft$

She walked 1,800 ft.

5 0

2 years ago

1. Find the ratio of of 25cm and 1m .<br> 2. Find the product of (a + 4)(a − 4).

mr Goodwill [35]

Answer:

1..

solution....

here given

25cm

1m=100cm

now,

25/100=1/4

1:4

2....

(a+4)(a-4)

a^2-4^2

a^2-16

Step-by-step explanation:

hope it will help you

7 0

3 years ago

Cuantas veces al día la manecilla de la hora de un reloj análogo pasa por un número múltiplo de 3.

Fiesta28 [93]

Pasa 96 veces. Porque cuando en una hora ahí 4 múltiples de 3. Tu coges las 4 vez es I lo multiplica a 24 horas. Así es como yo resulte con el número 96.

5 0

3 years ago