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1 year ago

I need a tutor for Honors Geometry please! I am a Freshman!

1 answer:

7 0

$\begin{gathered} \text{Two sides are given the same} \\ \text{The }BD\text{ is common for both the triangle.} \\ so,\text{ the triangle is congruent.} \end{gathered}$

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A rectangular prism is 7 cm long, 4 cm wide and 4 cm tall. How many 2 times 2 times 2 cm cubes can the prism be cut into? What i

Fantom [35]

Answer: The number of 2 times 2 times 2 cm cubes is 14. The total surface area of all the 2 times 2 times 2 times cm cubes is 336 cm square. The total volume of all the 2 times 2 times 2 times cm cubes is 112 cm cube.

Explanation:

It is given that the A rectangular prism is 7 cm long, 4 cm wide and 4 cm tall.

The volume of rectangular prism is,

$V_1=l\times b\times h$

$V_1=7\times 4\times 4$

$V_1=112$

Therefore, the volume of rectangular prism is 112 cm square.

The volume of cubes is,

$V_2=a^3$

$V_2=(2)^3$

$V_2=8$

The number of cubes in the rectangular prism is,

$N=\frac{V_1}{V_2} =\frac{112}{8} =14$

Therefore, the number of cubes is 14.

Total surface area of a cube is,

$A=6a^2$

$A=6(2)^2$

$A=24$

Total surface area of all cubes is,

$14\times A=14\times 24=336$

Therefore the total surface area of all cubes is 336 cm square.

Total volume of all cubes is equal t the volume of rectangular prism, i.e, 112 cm cube.

5 0

3 years ago

Evaluate f(x) = 5x2 - 4x - 9 for f(-2)

Svetllana [295]

Answer:

Step-by-step explanation:

5x^2 -4x -9

5(-2)^2 -4(-2) -9

-10^2 +8 -9

100-1

8 0

4 years ago

Rob is saving to buy a new MP3 player. For every $15 he earns babysitting, he saves $10.On Saturday, Rob earned $45 babysitting.

Dmitrij [34]

Answer:

$30

Step-by-step explanation:

Okay, so we can solve this problem using fractions; $10 saved for every $15 made..

10/15=x/45

Using cross multiplication we can conclude 10*45=15x

450=15x

x=30

Hope this helps :)

7 0

2 years ago

CH 2. PPLYNOMIALS 1. The number 0 is called a

expeople1 [14]

Step-by-step explanation:

The number 0 is called a. zero polynomial. binomial.

zigya

3 0

3 years ago

Marlon bought 7/8 pound of turkey at the deli. he used 2/3 of it to make sandwiches for lunch. How much of the turkey did Marlon

OLga [1]

So 2/3 as a decimal would be 0.66 and 7/8 as a decimal would be 0.125 so if you subtract the 2 decimals it would give you the answer of 49 slices.

i hope i'm right! :)

7 0

3 years ago