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3 years ago

Urgent !!!!!!!!!!!!!!! 10 points

Mathematics

2 answers:

Mademuasel [1]3 years ago

6 0

Answer:

136 cm²

Step-by-step explanation:

Surface area = 2(lw+wh+hl)

l = 7

w = 2

h = 6

so,

2(7×2+2×6+7×6)

= 136 cm²

Svetach [21]3 years ago

6 0

Answer:

136 cm^2

Step-by-step explanation:

L 7cm

W 6cm

D 2cm

7 x 6 + 6 x 2 + 2 x 7 (x 2) = 68 x 2 = 136cm^2

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The mean of a sequence of numbers is the average.

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$\mathbf{mn = m_1 \times n_1 + m_2 \times n_2}$

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3 years ago

Negative 2X squared plus 3X +2 equals zero

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3 years ago

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3 years ago

Beth is flying a kite with 300 feet of string. The kite gets stuck in a tree, so she ties the other end of the string to a rock

Paraphin [41]

Answer:

$\displaystyle 172.1 ft$

Step-by-step explanation:

refer the attachment

let the string be hypotenuse and

the height be h And the angle be 35°

given that,

hypotenuse:300ft
angle:35°

since we are given the hypotenuse and want to figure out the opposite side we'll use sin function

so our equation would be

$\displaystyle \sin( {35}^{ \circ} ) = \frac{h}{300}$

cross multiplication:

$\displaystyle h= 300 \sin( {35}^{ \circ} )$

by using calculator we obtain:

$\displaystyle h = 172.1$

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