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3 years ago

The answer to this problem and how it is for

Mathematics

1 answer:

dimulka [17.4K]3 years ago

5 0

Answer:

6 is where they intercept would be, and the numbers before x is the slope. i cant graph it tho because idk how on here

Step-by-step explanation:

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19. & 20. Please help

anyanavicka [17]

Cool if badly worded question. They're called dice. "given than"?

P(sum of two dice is odd GIVEN one is 4)

Of the 36 pairs of dice rolls, eleven have one with a 4:

(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(1,4),(2,4),(3,4),(5,4),(6,4)

Six of eleven have an odd sum;

Answer: 6/11

20.

The sides of a 45/45/90 triangle are in ratio $1:1:\sqrt{2}$ so each side is

$s = 24/\sqrt{2}$

and the area is

$A = \frac 1 2 s^2 = \frac 1 2 (24^2/2) = 24^2/2^2 = 12^2 = 144$

Answer: 144

8 0

4 years ago

Unit 11: volume & surface area homework 8

Sholpan [36]

The volumes of the pyramids are listed below:

V = 1437.333 cm³
V = 75,398 km³
V = 59.2 ft³
V = 393.3 yd³
V = 1134.116 m³
V = 403.333 mm³
V = 405.6 in³
V = 886.808 ft³

<h3>How to determine the volume of a pyramid</h3>

Volume is the space occuppied by an object. In this question we must determine the volumes of pyramids of circular base and polygonal base (V). All the formulas needed are described below:

<h3>Volume of the pyramid</h3>

V = (π/3) · B · h (1)

<h3>Base of the pyramid - Circle</h3>

B = (π/4) · R² (2)

<h3>Base of the pyramid - Regular polygon</h3>

B = (n · L²)/(4 · tan 0.5α) (3)

<h3>Base of the pyramid - Right triangle</h3>

B = (1/2) · b · z (4)

<h3>Base of the pyramid - Rectangle</h3>

B = b · z

Where:

R - Radius
n - Number of sides of the polygon.
l - Side length
α - Internal angle, in degree.
h - Height of the pyramid
b - Base of the right triangle/rectangle.
z - Length of the right triangle/rectangle.

Now we proceed to solve each pyramid:

1) Square, n = 4, α = 90°, L = 14 cm, h = 22 cm

B = 196 cm², V = 1437.333 cm³

2) Circle, R = 3 km, h = 8 km

B ≈ 28.274 km², V = 75,398 km³

3) Right triangle, b = 12 ft, z = 3.7 ft, h = 8 ft

B = 22.2 ft², V = 59.2 ft³

4) Rectangle, b = 23 yd, z = 9 yd, h = 5.7 yd

B = 207 yd², V = 393.3 yd³

5) Circle, R = 9.5 m, h = 12 m

B ≈ 283.529 m², V = 1134.116 m³

6) Regular pentagon, B = 110 mm², h = 11 mm

V = 403.333 mm³

7) Square,n = 4, α = 90°, L = 13 in, h = 7.2 in

B = 169 in², V = 405.6 in³

8) Regular triangle, n = 3, α = 120°, L = 16 ft, h = 24 ft

B ≈ 110.851 ft², V = 886.808 ft³

To learn more on volumes, we kindly invite to check this verified question: brainly.com/question/1578538

7 0

2 years ago

What's the basic ratio for 12:42

True [87]

Answer:

Since the simplest form of the fraction 12/42 is 2/7, the simplest form of the ratio 12:42 is also 2:7.

4 0

3 years ago

Which expression is equivalent to 27 + 45?

PilotLPTM [1.2K]

9(3+5)

if you go through each answer choice you will notice that none of the rest are right

8(3+6) = 24 +48
8(19 +37) = 152 + 296
9(18 +36)= 162 +324

6 0

3 years ago

Read 2 more answers

5 less than half a number, x please help i will give you the brainliest answer

Karo-lina-s [1.5K]

Answer: 1/2x -5

Step-by-step explanation:

Half of x , less 5. (5 less just means subtract)

5 0

3 years ago