Pleaaaaaasssseeeeee help me with this

Mathematics

2 answers:

Mice21 [21]2 years ago

6 0

Answer:

i think the second one

Step-by-step explanation:

s2008m [1.1K]2 years ago

4 0

Okkk so Surface area is the area of all the surfaces added together, this triangular prism consists of
2 triangles and 3 rectangles

To find the area of a triangle you do base x height divided by 2

To find the area of a rectangle
Length x width

Sooooo

Side 1= triangle
12x16/2: 96

Side 2= triangle
12x16/2: 96

Side 3= rectangle
12x10: 120

Side 4= rectangle
16x10: 160

Side 5= rectangle
10x20: 200

To find the SURFACE AREA
add them all together

96+96+120+160+200= 672 centimeters squared

Or square centimeters

SURFACE AREA UNITS is always squared so like square meters, centimeters, millimeters etc

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If A = 41 degree, Angle BDC = 58 degree, and y = 8, Find x.

love history [14]

Check the pictures below.

make sure your calculator is in Degree mode, since the angles are in degrees.

4 0

3 years ago

How do you solve this math problem-2(x+3y)=18

ss7ja [257]

Greetings!

Solve for x.
$-2(x+3y)=18$
Distribute the Parenthesis. How? Multiply all of the terms inside the parenthesis by the number outside the parenthesis.
$(-2)*x+(-2)*3y=18$
$-2x-6y=18$
Add 6y to both sides.
$(-2x-6y)+6y=(18)+6y$
$-2x=18+6y$
Divide both sides by -2.
$(-2x)/-2=(18+6y)/-2$
The Answer Is:
$x=-9-3y$
$x=-3y-9$

Hope this helps.
-Benjamin

7 0

2 years ago

Addy bought a new shirt and she had a 20% off coupon . The coupon took $8.25 off of the price of her shirt. What did she pay wit

zloy xaker [14]

Answer:

$33

Step-by-step explanation:

Given: Addy had 20% off coupon.

The coupon took $8.25 off of the shirt price.

Lets assume the original cost of shirt be "x".

We know Addy had 20% off coupon, which help to reduce the price of shirt by $8.25.

∴ We can form an equation to know the original price of shirt.