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TEA [102]
3 years ago
5

Given the diagram below, Philip thinks the value of x is 9, but Mia thinks the value of x is 12. Which student is correct? Justi

fy your answer.

Mathematics
1 answer:
pantera1 [17]3 years ago
3 0

Answer:

Mia is correct

Step-by-step explanation:

The outer triangle and the inner triangle are similar ( AA postulate )

Then the ratios of corresponding sides are in proportion

\frac{2}{2+6} = \frac{3}{x} , that is

\frac{2}{8} = \frac{3}{x} ( cross- multiply )

2x = 24 ( divide both sides by 2 )

x = 12

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QveST [7]

Answer:

  • 3 times

Step-by-step explanation:

<u>Volume of the pyramid:</u>

  • V = lwh/3

<u>Volume of the prism:</u>

  • V = lwh

<u>Since all dimensions remain as is, the volume of the prism is:</u>

  • lwh / (lwh/3) = 3 times greater
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3 years ago
8: Una tarta pasaba 800 y se han consumido 3/8. Que fraccion de tarta queda? Cuanto pesa la parte que
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3 years ago
Solve for the missing sides 30-60-90 triangle show work please and thank you
Alex_Xolod [135]

Answer:

4.

x=8\sqrt{3}

y=16

5.

x=3

y=3\sqrt{3}

Step-by-step explanation:

The sides of a (30 - 60 - 90) triangle follow the following proportion,

a-a\sqrt{3}-2a

Where (a) is the side opposite the (30) degree angle, (a\sqrt{3}) is the side opposite the (60) degree angle, and (2a) is the side opposite the (90) degree angle. Apply this property for the sides to solve the two given problems,

4.

It is given that the side opposite the (30) degree angle has a measure of (8) units. One is asked to find the measure of the other two sides.

The measure of the side opposite the (60) degree side is equal to the measure of the side opposite the (30) degree angle times (\sqrt{3}). Thus the following statement can be made,

x=8\sqrt{3}

The measure of the side opposite the (90) degree angle is equal to twice the measure of the side opposite the (30) degree angle. Therefore, one can say the following,

y=16

5.

In this situation, the side opposite the (90) degree angle has a measure of (6) units. The problem asks one to find the measure of the other two sides,

The measure of the side opposite the (60) degree angle in a (30-60-90) triangle is half the hypotenuse times the square root of (3). Therefore one can state the following,

y=3\sqrt{3}

The measure of the side opposite the (30) degree angle is half the hypotenuse (the side opposite the (90) degree angle). Hence, the following conclusion can be made,

x=3

6 0
3 years ago
A ream of paper contains 500 sheets of paper. Norm has 373 sheets of paper left from a ream. Express the portion of a ream Norm
Lunna [17]

Answer: In fraction : \dfrac{373}{500}

In Decimal :  0.746

Step-by-step explanation:

Given : A ream of paper contains 500 sheets of paper.

Norm has 373 sheets of paper left from a ream.

Then, the fraction of ream Norm has will be :-

\dfrac{\text{Number of sheets left from ream }}{\text{Total sheets in a ream }}\\\\=\dfrac{373}{500}

To convert in decimal we divide 373 by 500, we get 0.746.

Hence, The portion of a ream Norm has as = \dfrac{373}{500} or 0.746

3 0
3 years ago
F(x) = x2 + 1 g(x) = 5 – x<br><br> (f + g)(x) =
Gnom [1K]

Answer:

(f + g)(x) =  {x}^{2} - x + 6

Step-by-step explanation:

We have

f(x) =  {x}^{2}  + 1

and

g(x) = 5 - x

We want to find (f+g)(x).

By the algebraic properties of polynomial functions,

(f + g)(x) = f(x) + g(x)

(f + g)(x) =  {x}^{2}  + 1 + 5 - x

This simplifies to

(f + g)(x) =  {x}^{2}  - x + 6

We can't simplify further, hence the simplest form

4 0
4 years ago
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