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Mrrafil [7]
3 years ago
8

Please help me, thank you

Mathematics
1 answer:
alex41 [277]3 years ago
4 0

Answer:

B 90

Step-by-step explanation:

By basic rules, all angles in a rectangle equal 90°

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The dimensions of a rectangular prism are shown below: Length: 1 and 1 over 3 feet Width: 1 foot Height: 2 and 1 over 3feet The
Andreas93 [3]

9514 1404 393

Answer:

  • 84 small cubes
  • 3 1/9 unit cubes

Step-by-step explanation:

A cube that is 1/3 ft on a side will fit 3 in a foot. In terms of the 1/3 ft small cube, the dimensions of the prism are ...

  1 1/3 ft = 4 small cubes

  1 ft = 3 small cubes

  2 1/3 ft = 7 small cubes

Then the volume in terms of small cubes is ...

  V = LWH = (4)(3)(7) = 84 small cubes

__

There are 3×3×3 = 27 small cubes in a 1-ft unit cube, so the prism volume in terms of unit cubes is ...

  84/27 = 3 1/9 . . . unit cubes

__

<em>Additional comment</em>

The largest dimension of the prism is just over 2 ft, so the maximum number of unit (1 ft) cubes that will fit is 2. To fill the volume with 3 1/9 unit cubes, those would have to be cut and fit into the space.

8 0
3 years ago
Read 2 more answers
I need to find AB and DE​
MatroZZZ [7]

Answer:

AB = 21 and DE = 23

Step-by-step explanation:

Given 2 intersecting chords inside the circle then

The products of the measures of the parts of one chord is equal to the products of the measures of the parts of the other chord, that is

x(x + 13) = (x + 10)(x + 1) ← distribute parenthesis on both sides

x² + 13x = x² + 11x + 10 ← subtract x² + 11x from both sides

2x = 10 ( divide both sides by 2 )

x = 5

Hence

AB = x + 10 + x + 1 = 2x + 11 = (2 × 5) + 11 = 10 + 11 = 21

DE = x + x + 13 = 2x + 13 = (2 × 5) + 13 = 10 + 13 = 23

4 0
3 years ago
Calculate the interest rate when the principal is $300 and interest earned is $40 after 3
stich3 [128]

Answer:

4.4%

Step-by-step explanation:

solution:

principal (p) = $300

time(t) = 3 years

interest (I ) =$40

rate (r) = ?

we know that,

I = (PTR)/100*

OR, 40 = (300 *3 * R)/100

or, 40 = (900R)/100

or, 40 = 9R

or, 40/9 = R

or, R = 4.4%

Rate(r) =4.4%

3 0
3 years ago
Y=2/3x+4<br> Y=-3/2x-3<br> Are these perpendicular parallel or neither
lara31 [8.8K]

Perpendicular because when you graph it the lines intersect at 90 degree angels.                                                                                                                                                                                    

8 0
3 years ago
4 and -4 are additive ___
Norma-Jean [14]

Answer:

inverse

Step-by-step explanation:

4 is the additive inverse of -4

When you add opposites, they always have a sum of 0.

4 + -4 = 0

The additive inverse of a positive number is negative and vice versa.

6 0
3 years ago
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