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3 years ago

DUE TONIGHT, please help me i'm really confused and please show work. I will mark Brainly

Mathematics

1 answer:

Elza [17]3 years ago

4 0

Answer:

this is linear equation correct?

Step-by-step explanation:

let me know i might be able to help

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What is the measure of <R?

Verdich [7]

Answer:

<R=23°

Step-by-step explanation:

The sum of angles in a triangle is 180°

So, <R + <S + <T = 180°

<R+90°+67°=180°

<R+157°=180°

<R=23°

7 0

4 years ago

The present shown below is a cube. Find the surface area.

vitfil [10]

Answer:

SA = 2,400 cm²

Step-by-step explanation:

Surface Area (SA) of a cuboid: 2(lw) + 2(wh) + 2(hl)

SA = 2(lw) + 2(wh) + 2(hl)

l = 20 cm
w = 20 cm
h = 20 cm

Substitute the values above and multiply:

SA = 2(lw) + 2(wh) + 2(hl)

SA = 2(20)(20) + 2(20)(20) + 2(20)(20)

SA = 2(400) + 2(400) + 2(400)

SA = 800 + 800 + 800

SA = 2,400 cm²

Final answer: 2,400 cm²

Hope this helps!

6 0

3 years ago

Read 2 more answers

Two truckers leave from the same point driving in opposite directions, the first trucker driving at 62 miles per hour and the s

Elodia [21]

Answer:

1 hour 42 minutes

Step-by-step explanation:

Given: Speed of 1st trucker= 62 mph

Speed of 2nd trucker= 66 mph

Total distance need to cover to be in contact is 270 miles

1st trucker start 1 hour ahead of 2nd trucker

Lets assume 2nd trucker take `x` hours to be in contact and 1st trucker take `(x+1)` hours.

We know, distance= $speed\times time$

1st trucker, distance $(d_1)= 62\times (x+1)$

∴ $d_1= 62x+62$

2nd trucker, distance $(d_2)= 66\times x$

∴ $d_2= 66x$

Now, putting the values in an equation.

$d_1+d_2= 270$

⇒ $(62x+62)+66x= 270$

Opening the parenthesis to solve and subtracting both side by 62

⇒ $122x= 208$

∴ x= $\frac{208}{122} = 1.70\ h$ = 1 hour 42 minutes

∴ It will take 1 hour 42 minutes to be able contact each other after first trucker leaves.

3 0

3 years ago

What is the area of the base of the rectangular

Vlada [557]

Rectangular Prism Formula:

$d=\sqrt[2]{l^2+h^2+w^2}$ Diagonal Formula

$v=l*w*h$ Volume Formula

$A_{s} =2(lw+wh+lh)$ Surface Area Formula

The Base Only:

$l*w*h$ Base Formula

4 0

3 years ago

What fraction manipulative covers 1/2 of 1/3

stira [4]

The answer would be 1/2 * 1/3
just cross multiply 1*1 and 2*3. you get 1/6
Hope this helps

6 0

4 years ago