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3 years ago

PLEASE HELPPP!!!

Mathematics

1 answer:

Tatiana [17]3 years ago

7 0

Answer:

ko iu whry frhf weoiy

Step-by-step explanation:

no sé cómo hacer esto lo siento

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Can someone please help me??

GenaCL600 [577]

3.5 divided by 10? maybe i'm not sure.

6 0

3 years ago

Andy is building a model of a square pyramid for a class project. The side length of the square base is 11 inches and the slant

Wewaii [24]

Answer:

The surface area of the model pyramid is $451\ in^{2}$

Step-by-step explanation:

we know that

The surface area of the pyramid is equal to

$SA=B+LA$

where

B is the area of the base of the pyramid

LA is the lateral surface of the pyramid

Find the area of the base B

$B=11^{2}=121\ in^{2}$ -----> is a square

Find the lateral surface area of the pyramid LA

we know that

The lateral surface area is equal to the area of its four triangular faces

$LA=4[\frac{1}{2}(11)(15)]=330\ in^{2}$

Find the surface area of the pyramid

Substitute the values

$SA=121+330=451\ in^{2}$

6 0

3 years ago

Done

son4ous [18]

Answer:

Expression for perimeter of triangle = 5x+8

Step-by-step explanation:

Given that:

Length of bottom of triangle = b = x

Length of other side = a = 3x + 5

Length of last side = c = x + 3

Perimeter of triangle = a + b + c

Perimeter = (3x+5)+x+(x+3)

Perimeter = 3x+5+x+x+3

Perimeter = 5x + 8

Hence,

Expression for perimeter of triangle = 5x+8

5 0

3 years ago

Expression equivalent to (0.28t-0.3)-(0.7t-0.28)?

Softa [21]

B because it obviously can’t be any other

3 0

3 years ago

Whats the equation for the slopes (-3,12) (5,2)

bazaltina [42]

$m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{2 - 12}{5 - (-3)} = \frac{-10}{5 + 3} = \frac{-10}{8} = -1\frac{1}{4}$

y - y₁ = m(x - x₁)
y - 2 = -1¹/₄(x - 5)
y - 2 = -1¹/₄(x) + 1¹/₄(5)
y - 2 = -1¹/₄x + 6¹/₄
+ 2 + 2
y = -1¹/₄x + 8¹/₄

7 0

3 years ago