2 years ago

Help for brainliest answer

Mathematics

1 answer:

guajiro [1.7K]2 years ago

8 0

Step-by-step explanation:

SA=ph+2A, that is, perimeter × height+ twice area

p=21+20+29=70cm

h=22cm

70×22=1540cm

A=1/2 ×20×21=210×2=420

1540+420=1960cm2

You might be interested in

(3 x 105 ) x (2 x 103 )

anzhelika [568]

Answer:

64,890

Step-by-step explanation:

105×3 =315

103×2= 206

315×206= 64,890

6 0

3 years ago

Read 2 more answers

What is the slope of a line that is perpendicular to a line whose equation is −2y=3x+7 ?

Nina [5.8K]

2/3X
perpendicular slope is opposite of the sign and flip the fraction

5 0

3 years ago

Solve −2x−4=3x+1 by graphing. The solution is x=

alex41 [277]

Answer: x=-1

Step-by-step explanation:

7 0

2 years ago

The perimeter of a triangle is 42 inches. One side measures 18 inches. The shortest side measures x inches. The longest side mea

julia-pushkina [17]

Shortest side = x, Longest Side = 4x-1, third side = 18 Equation is x + (4x-1) + 18 = 42 so 5x-1 = 42-18=24 and 5x=25 so x = 5, longest side = 4(5)-1=19, third side=18 Add all 3 (5+19+18) to get 42

3 0

3 years ago

Graph f(x) = -x-3. Use the line tool and select two points to graph the line.

FrozenT [24]

Answer: Look at the screenshot

Step-by-step explanation:

Ive added a screenshot of what this graph should look like

4 0

2 years ago

Read 2 more answers