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3 years ago

First to answer correctly gets brainliest Clicking on the images makes it full

Mathematics

2 answers:

Thepotemich [5.8K]3 years ago

7 0

a:-

This is a pentagonal pyramid

It has 5 planes on sides and one is on base.
Total 6planes.

B:-

J-F-L and J-K-D

C:-

HG is the intersection line

Naddika [18.5K]3 years ago

6 0

Answer:

There are 6 planes - 5 faces of the pyramid and one base, which overlaps with the plane X.

<u>Collinear points are the points on the same line:</u>

J, K, D are collinear

The intersection of planes X and HGD is the line section HG.

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The Lopez Family meets with a financial planner who advises them to save 15% of their income

soldi70 [24.7K]

Answer:

$1281

Step-by-step explanation:

$8540 \times \frac{15}{100} \\ 1281$

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3 years ago

Two cones are similar. The volume of the larger cone is 27 cm³ and the volume of the smaller cone is 8 cm³. The height of the sm

EastWind [94]

The height of larger will be 3 cm
As,
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3 years ago

A petrol kiosk p is 12 km due north of another petrol kiosk q. The bearing of a police station r from p is 135 degree and that f

tiny-mole [99]

Answer:

Distance between P and R is 40.15 km.

Step-by-step explanation:

From the picture attached,

Petrol kiosk P is 12 km due North of another petrol kiosk Q.

Bearing of a police station R is 135° from P and 120° from Q.

m∠QPR = 180° - 135° = 45°

m∠PQR = 120°

m∠PRQ = 180° - (m∠QPR +m∠PQR)

= 180° - (45° + 120°)

= 180° - 165°

= 15°

Now we apply sine rule in ΔPQR to measure the distance between P and R.

$\frac{\text{sin}(\angle QPR)}{\text{QR}}= \frac{\text{sin}(\angle PQR)}{\text{PR}}=\frac{\text{sin}\angle PRQ}{\text{PQ}}$

$\frac{\text{sin}(45)}{\text{QR}}= \frac{\text{sin}(120)}{\text{PR}}=\frac{\text{sin}(15)}{\text{12}}$

$\frac{\text{sin}(120)}{\text{PR}}=\frac{\text{sin}(15)}{\text{12}}$

PR = $\frac{12\text{sin}(120)}{\text{sin}(15)}$

PR = 40.15 km

Therefore, distance between P and R is 40.15 km.

8 0

3 years ago

In a well-shuffled, standard 52 card deck, what is the probability that a card is a Queen, given that it is a black card

dlinn [17]

There are two black queens in a standard deck, so the probability is 2/52 or 1/26.

If instead you know you pulled a black card from the deck and you’re wondering what the probably is that it’s a queen, then it’s 2/26, since there are still 2 black queens, but only 26 black cards.

7 0

2 years ago

Read 2 more answers

Express 0.208 (the 8 is repeating) as a fraction in simplest form.<br><br> 10 POINT AWARD

den301095 [7]

Let x=0.208bar or 0.20888...

1000x=208.888 and 100x=20.888 so

1000x-100x=208.888-20.888

900x=188

x=47/225

5 0

3 years ago