3 years ago

1/3(3x - 12) = x - 4

Mathematics

1 answer:

PIT_PIT [208]3 years ago

3 0

Step-by-step explanation:

the formula is too long so the link is below:

https://www.geteasysoloution.com/1/3x+12=x-4

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77 is 0.7% of what number?

olga nikolaevna [1]

Answer:

0.7% of 77 = 0.54 0.7%

Step-by-step explanation:

hope this helps

7 0

3 years ago

What is the surface area of the rectangular pyramid shown? 59.5 cm2 63 cm2 75.5 cm2 99 cm2

arsen [322]

Answer:

Option D.

Step-by-step explanation:

In this question figure of pyramid is attached below the question .

Surface area of the rectangular pyramid :

Area of the Base = Length × Width

= 10 × 2 = 20 cm²

Area of Lateral #1 = $\frac{1}{2}(P)(L)$

= $\frac{1}{2}(10\times6.3)$

= 31.5 cm²

Area of Lateral #2 = $\frac{1}{2}(8\times 2)$

= $\frac{16}{2}$

= 8 cm²

Surface area of the pyramid = 20 + 2(31.5) + 2(8)

= 20 + 63 + 16

= 99 cm²

Surface area of the pyramid is 99 cm²

7 0

3 years ago

Read 2 more answers

Type the correct answer in the box. Round off your answer to the nearest integer.

Ugo [173]

Answer:

59°

Step-by-step explanation:

In triangle DAB, by Pythagoras theorem:

$DB= \sqrt {6^2 +5^2} =\sqrt{36+25}=\sqrt{61}$

Next, in triangle DCB, by Pythagoras theorem:

$DB= \sqrt {(\sqrt {61} )^2 - 4^2} =\sqrt{61-16}=\sqrt{45}$

Now, by sin rule.

$\frac{ \sin \: p}{ \sqrt{45} } = \frac{ \sin 90 \degree}{ \sqrt{61} } \\ \\ \frac{ \sin \: p}{ 6.70820393} = \frac{ 1}{ 7.81024968 } \\ \\ \sin \: p = \frac{ 6.70820393}{7.81024968} \\ \\ \sin \: p = 0.858897501 \\ \\p = 59.19301883 \degree \\ \\ p \approx 59 \degree$