All categories

3 years ago

2n.

Mathematics

2 answers:

Radda [10]3 years ago

6 0

9514 1404 393

Answer:

21 in²

Step-by-step explanation:

The net consists of a square and 4 triangles. The relevant dimensions of each are given, so the appropriate area formulas can be used.

Area of one triangle:

A = 1/2bh

A = 1/2(3 in)(2 in) = 3 in²

Area of the square:

A = s²

A = (3 in)² = 9 in²

Total net area (surface area of the pyramid):

square area + 4 × triangle area

9 in² + 4 × 3 in² = 21 in² . . . . surface area

Genrish500 [490]3 years ago

6 0

Answer:

21 in.

Step-by-step explanation:

4(1/2 b X h) + 3 X 3

4(1/2 3 X 2) +9

4(1/2 X6) +9

4(3) +9

12+9

You might be interested in

The perimeter of a rectangular field is 318 yards. If the width of the field is 74 yards, what is its length?

san4es73 [151]

318/2=159

159-74=85

the length is 85 yards

6 0

3 years ago

A drawer contains black socks and white socks. 40% of the socks are black socks. A number generator simulates randomly selecting

ch4aika [34]

It should be Cit should be C

3 0

3 years ago

Yesterday, Leila had d baseball cards. Today, she gave 10 away. Using , write an expression for the number of cards Leila has le

jeyben [28]

Answer:

d - 10

Step-by-step explanation:

Because the amount of Leila’s baseball cards was d, subtract 10 from it to get Leila’s amount of baseball cards now.

d - 10

3 0

4 years ago

Read 2 more answers

For which values of x is the expression undefined?

lord [1]

Answer:

-3, -6

Step-by-step explanation:

Any number of x that makes the bottom 0 makes the expression undefined.

Factor the polynomial in the denominator:

(x+3)(x+6)

Values of x that makes the expression undefined are -3 and -6

Support me by choosing my answer as the brainiest :)

5 0

2 years ago

Find an equation for the line below.<br><br><br> will give brainiest

pogonyaev

Answer: $y=-\frac{x}{2}-6.5$

Step-by-step explanation:

First find slope m. From observing the equation we can see that there are two points on the line. They are (-5,-4) and (-1,-6). Using the formula to find slope rise/run we get m = -0.5.

Now we use the point-slope formula to start the switch to the slope-intercept formula. Using (-1,-6) as our x and y values and switching m=-0.5 we get y + 6 = -0.5 ( x + 1). Simplify and we get y + 6 = -x/2 - -0.5. Subtract 6 from both sides and the final equation is y = -x/2 - 6.5.

8 0

3 years ago