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Leto [7]
3 years ago
11

NEED HELP ASAP!!!! Will give brainliest!!!

Mathematics
1 answer:
iris [78.8K]3 years ago
3 0

224 cubes. Are needed 224 cubes with side lenghts of 1/4 cm to fill the prism.

The key to solve this problem is calculate the volume of both the cube and the prism.

Vcube = l³

Vprism = l*w*h

Where  l is lenght, w is width, and h is height.

Vcube = (1/4 cm)³ = 1/64 cm³

Vprism = (2 cm)(7/4 cm)(1 cm) = 7/2 cm³

Calculating how many cubes does it takes to fill the prism:

Cubes = Vprism/Vcube = (7/2 cm³)/(1/64 cm³) = 448/2 = 224

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What are the zeros of f(x)=x^2+x-20?
zzz [600]
F(x) = x² + x - 20 = x² + 5x - 4x - 20 = x(x + 5) - 4(x + 5) = (x + 5)(x - 4)

f(x) = 0 ⇔ (x + 5)(x - 4) = 0 ⇔ x + 5 = 0 or x - 4 = 0 ⇒ x = -5 or x = 4

Answer: C. x = -5 and x = 4.
3 0
3 years ago
Can someone plz help me with Algebra 2....... :) Will give Brainliest!!
Anarel [89]
Using logarithms property of log(x)+log(y)=log(xy)
so here, you can sum the equation to;
log((x+6)*(x-6))=2
so you can simply say that;
log_{8}((x+6)( x-6))=2
and by multiplying (x+6)*(x-6)
log_{8}(x^2-36)=2
and as you know also that;
a^{b}=c is same as log _{a}c=b
so you can simply state it as;
8^2=x^2-36
64=x^2-36
64+36=x^2
x^2=100
x=10
And you can check your work by substituting with 10 instead of x in the original function.
Hope this helps!
6 0
3 years ago
¿Cuál es la probabilidad de que al lanzar un dado se obtenga un número impar y menor que 5?
NemiM [27]

Answer:

4/6 or 66.67 percent

Step-by-step explanation:

5 0
3 years ago
Help plssss. picture attached
enot [183]

Answer:30 feet.

Step-by-step explanation: 2 doubled is four and in the bigger triangle it says 5. Therefore 12 doubled and a bit more is 30

3 0
3 years ago
Solve this please. Good luck.
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