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BabaBlast [244]
3 years ago
6

If a cube is divided into two equal parts by a plane parallel to a face of the cube, which of the following best describes the c

ross-section of the cube?
A rex]ctangle
B Triangle
C Square
D Scalene Triangle
Mathematics
1 answer:
RUDIKE [14]3 years ago
5 0

Answer:

C:  square

Step-by-step explanation:

Look at a die and imagine that you're cutting it in half parallel to any one side.  What figure would you see in the plane you just cut?

It'd be a square.  Option C.

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Twelve and nine thousandths
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Jasmine bought a calendar and a book for a total of $24. The calendar cost $10. Which equation can be used to find b, the cost o
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24-10=b

The cost of b is 14

Hope this helps

6 0
3 years ago
Read 2 more answers
lena works for 34 hours from monday to friday at her normal rate of pay ,on saturdays she gets an overtime rate of pay ,the over
kifflom [539]

Answer: £ 8

Step-by-step explanation:

Total hours Lena works from Monday to Friday = 34 hours

Hours she works on Saturdays = 4

Overtime rate of Saturday = 1.5 times her normal rate

Let x be the normal rate.

Then , Her total earning = 34 x + 4 \times(1.5x) =34x+6x=40x

Since her total earnings for week = £ 320

So,

320=40x\\\\\Rightarrow\ x=\dfrac{320}{40}\\\\\Rightarrow\ x=8

Thus, her normal rate of pay per hour = £ 8

7 0
3 years ago
Please help asap!!! Will give brainlist :)
Scilla [17]

Answer:

744 cubic inches

Step-by-step explanation:

Volume of Styrofoam= volume of big box -volume of glass box

=(10*10*15)-(9*7*12)

=1500-756

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3 0
3 years ago
If x^2+1/x^2=3 find the value of x^2/(x^2+1)^2<br> Express answer as a common fraction.<br> Thanks!!
timama [110]

x^2+\dfrac1{x^2}=3\implies x^4+1=3x^2\implies x^4-3x^2+1=0

By the quadratic formula,

x^2=\dfrac{3\pm\sqrt5}2\implies x^2+1=\dfrac{5\pm\sqrt5}2

Then

(x^2+1)^2=\dfrac{25\pm10\sqrt5+5}4=\dfrac{15\pm5\sqrt5}2

\implies\dfrac{x^2}{(x^2+1)^2}=\dfrac{\frac{3\pm\sqrt5}2}{\frac{15\pm5\sqrt5}2}=\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}

Multiply numerator and denominator by the denominator's conjugate:

\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}\cdot\dfrac{15\mp5\sqrt5}{15\mp5\sqrt5}=\dfrac{45\pm15\sqrt5\mp15\sqrt5-25}{15^2-(5\sqrt5)^2}=\dfrac{20}{100}=\dfrac15

3 0
3 years ago
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