3 years ago

(4x+5)(4x−5) I'm stuck can someone please help me

Mathematics

2 answers:

Marizza181 [45]3 years ago

5 0

Answer:6small2−25

Step-by-step explanation:

Vesnalui [34]3 years ago

3 0

Answer:

16x² - 25

Step-by-step explanation:

(4x+5)(4x−5)

16x² - 20x + 20x - 25

16x² - 25

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A box of candy is shaped like a triangular pyramid the volume of the candy box measures 120 in squared 3 the area of the base of

Zolol [24]

Answeh:

Height

A: Base Area

Volume = Ah/3

base=18

volume area of the box =120

=720

Step-by-step explanation:

8 0

3 years ago

I really don't get this please help

Fiesta28 [93]

21 3/16...as a decimal
the 21 is a whole number and goes to the left of the decimal....and the fraction 3/16 goes to the right of the decimal.
3/16 = 0.1875....now add ur 21 and u get 21.1875 inches wide

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4 0

2 years ago

Trigonometry

quester [9]

Answer:

$\frac{9 + 2 \sqrt{3} }{3} \\$

Step-by-step explanation:

$\cosec(30) + \cosec(60) + \cosec(90) \\ \\ = 2 + \frac{2}{ \sqrt{3} } + 1 \\ \\ = \frac{2 \sqrt{3 } + 2}{ \sqrt{3} } + 1 \\ \\ = \frac{2 \sqrt{3} + 2 + \sqrt{3} }{ \sqrt{3} } \\ \\ = \frac{3 \sqrt{3} + 2}{ \sqrt{3} } \\ \\ = \frac{3 \sqrt{3} + 2}{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } \\ \\ = \frac{9 + 2 \sqrt{3} }{3}$