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coldgirl [10]
3 years ago
6

4th question help please

Mathematics
2 answers:
alina1380 [7]3 years ago
7 0
Hey there! :)

You have to find the area of all of them and add it together.

Formulas:

Area of a square: l · w
Area of a triangle: (b · h) ÷ 2

Square - 

l = 2
w = 2

2 × 2 = 4

Triangle - 

b = 2
h = 4

(4 · 2) ÷ 2
   8   ÷   2 = 4

There are 4 triangles

4 × 4 = 16

16 + 4 = 20

The surface area ⇒ 20 cm²
hoa [83]3 years ago
4 0
SA of a pyramid: 1/2ph + B
p = perimeter of base
h = slant height
B = area of base

Perimeter of base:
The pyramid has a square base, so take a side of the base and multiply it by 4 sides to find the perimeter of the base.
(2)(4) = 8 cm

Slant height: 
The diagram shows that the slant height of the pyramid is 4 cm.

Area of base:
Since the pyramid has a square base, square one side of the base to find the area of the pyramid.
2cm² = 4 cm²

Now plug in the perimeter, slant height, and area of the base into the formula for SA of a pyramid.

1/2(8)(4) + 4 
16 + 4 = 20 cm²

The surface area of the pyramid is 20 cm².
You might be interested in
When there are 24 cars in the parking lot, the lot is ⅜ full. What is the maximum capacity (total number of cars) that the parki
Alex

Answer:

64 cars

Step-by-step explanation:

total number of cars that the parking lot can hold = 8/3 × 24 = 64 cars

3 0
3 years ago
Use the point-slope equation to identify the slope and the coordinates of a point
ioda

Answer:

see explanation

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

y - 4 = \frac{1}{2}(x - 1) ← is in point- slope form

with slope m = \frac{1}{2}

and (a, b) = (1, 4 ) ← point on the line

7 0
3 years ago
Read 2 more answers
Not sure about this one help please
lutik1710 [3]

Answer:

a) -1

Step-by-step explanation:

Slope is also known as the gradient

1. assign a value to x and solve for y:

when x = 2, y = 2

when x = 4, y = 0

2. Next, use the equation of a straight line to find the gradient

y = mx + c

y is the y-coordinate, m is the gradient, x is the x-coordinate, c is the point where the line crosses the y-axis, which is found by equating y to 0 and solving for x

so y = mx + c becomes 2 = m*2 + 4, which then becomes 2 = 2m + 4

2m = -2 (take 4 away from 2)

<u>m = -1 </u>

5 0
3 years ago
Find the product.
natka813 [3]

Answer:

C:) 17/3

Step-by-step explanation:

Simplify the following:

((3 + 2/5)×5)/3

((3 + 2/5)×5)/3 = ((3 + 2/5)×5)/3:

((3 + 2/5)×5)/3

Put 3 + 2/5 over the common denominator 5. 3 + 2/5 = (5×3)/5 + 2/5:

((5×3)/5 + 2/5 5)/3

5×3 = 15:

((15/5 + 2/5)×5)/3

15/5 + 2/5 = (15 + 2)/5:

((15 + 2)/5×5)/3

15 + 2 = 17:

(17/5×5)/3

17/5×5 = (17×5)/5:

((17×5)/5)/3

((17×5)/5)/3 = (17×5)/(5×3):

(17×5)/(5×3)

(17×5)/(5×3) = 5/5×17/3 = 17/3:

Answer:  17/3

5 0
2 years ago
Haruka hiked several kilometers in the morning. She only hiked 6 kilometers in the afternoon, which was 25% less she had hiked i
SOVA2 [1]

WEW can use a simple equation to solve this

Let x be the number of kilometers she hiked in the morning . Then

x - 0.25x = 6 (Note 0.25 = 25 %)

0.75x = 6

x = 6 / 0.75 = 8 kilometers answer

4 0
3 years ago
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