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3 years ago

Marley solve 345 -176 and then checked her work which pair of number sentences did she u

Mathematics

1 answer:

polet [3.4K]3 years ago

8 0

Answer:

Could you finish the question???

Step-by-step explanation:

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The following table shows the coordinates for a triangle and the coordinates for its image. The triangle is mapped

aalyn [17]

Answer:

Th (0,0)

the centre of dialation

4 0

3 years ago

Calculate volume of hemisphere with radius 3.2 cm

Olin [163]

Answer:

V ≈ 68.63 cm³

Step-by-step explanation:

the volume (V) of a sphere is calculated as

V = $\frac{4}{3}$ πr³

the volume of a hemisphere is half the volume of a sphere, so

V = $\frac{1}{2}$ × $\frac{4}{3}$ πr³ = $\frac{2}{3}$ πr³ , then

V = $\frac{2}{3}$ π × 3.2³

= $\frac{2}{3}$ π × 32.768

≈ 68.63 cm³ ( to 2 dec. places )

5 0

2 years ago

Struggling on this one may i please get some help

valkas [14]

Answer:

diameter 12.81 units to the hundredths

Step-by-step explanation:

Assuming O is the intersection of extensions of PS and QR, at the circumference of T.

PT is chord and TS is perpendicular to PT passing through the centre T. Therefore PS is a perpendicular bisector.

SO = 10/2 = 5

Similarly, RO = 5

Consider right triangle ORT right-angled at R

radius = OT = sqrt(OR^2+RT^2) = sqrt(5^2+4^2) = sqrt(41)

Therefore diameter = 2sqrt(41) = 12.806 (to the third decimal place)

8 0

3 years ago

Find the area of a circle with a circumference of 11 pi feet

Aleksandr [31]

Answer: btw i love candy

Step-by-step explanation:

7 0

3 years ago

Can anyone explain how to do this? The answer isn't as important as the explanation. My teacher gave us a video w/o an example l

solong [7]

Answer:

x = 182.53

Step-by-step explanation:

Use trigonometric ratios to find the whole side length (a) adjacent to 20° and the side length (b) adjacent to 57° respectively. Then find the difference. That would give you the value of x. That is: a - b = x

Let's solve.

✍️Finding the whole side length adjacent to 20°:

Opp = 87

Adjacent length = ? = a

$\theta = 20$

Thus,

$tan(\theta) = \frac{opposite}{adjacent}$

Plug in the values

$tan(20) = \frac{87}{a}$

Multiply both sides by a

$tan(20) \times a = \frac{87}{a} \times a$

$tan(20) \times a = 87$

Divide both sides by tan(20)

$\frac{tan(20) \times a}{tan(20)} = \frac{87}{tan(20)}$

$a = \frac{87}{tan(20)}$

$a = 239.03$

Finding the side length adjacent to 57°:

Opp = 87

Adjacent length = ? = b

$\theta = 57$

Thus,

$tan(\theta) = \frac{opposite}{adjacent}$

Plug in the values

$tan(57) = \frac{87}{b}$

Multiply both sides by b

$tan(57) \times b = \frac{87}{b} \times b$

$tan(57) \times b = 87$

Divide both sides by tan(57)

$\frac{tan(57) \times b}{tan(57)} = \frac{87}{tan(57)}$

$b = \frac{87}{tan(57)}$

$b = 56.50$

Therefore:

x = a - b

x = 239.03 - 56.50

x = 182.53

4 0

3 years ago