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3 years ago

Please help i will gove you brainliest if you show explanation

Mathematics

1 answer:

navik [9.2K]3 years ago

4 0

Answer:

Its in there

Step-by-step explanation:

To find the surface area of a regular triangular pyramid, we use the formula SA = A + (3/2)base height, where A = the area of the pyramid's base, b = the base of one of the faces, and h = height of one of the faces

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The surface area of a sphere with radius R can be calculated using the formula S=4pi*r^2. Write a formula showing r's dependence

son4ous [18]

Step-by-step explanation:

your expression for the dependence of r on S is correct

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2 years ago

Find the equation of the line that

olganol [36]

Answer:

y= $\frac{1}{2}x-2$

Step-by-step explanation:

Perpendicular lines have negative reciprocal gradients(slopes) so the slope of your new line would be 1/2. Then you use the point to find the new y-intercept

y=mx+b

2= $\frac{1}{2}$ (8)+b

2=4+b

B=-2

y= $\frac{1}{2}x-2$

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3 years ago

Need help! Law of cosines...find b round to the nearest tenth please

dusya [7]

ANSWER

$B = 27.8 \degree$

EXPLANATION

The law of cosine is given by the formula:

${b}^{2} = {a}^{2} + {c}^{2} - 2bc \cos(B)$

From the diagram,

a=17, b=8, c=16

We substitute the given values into the formula to obtain:

${8}^{2} = {17}^{2} + {16}^{2} - 2(17)(16)\cos(B)$

$64 = 289+ 256- 544\cos(B)$

$64 = 545- 544\cos(B)$

$64 - 545 = - 544\cos(B)$

$- 481 = - 544\cos(B)$

$\frac{ - 481}{ - 544} = \cos(B)$

$cos(B) = 0.88419$

$B = \cos ^{ - 1} (0.88419)$

$B = 27.8 \degree$

3 0

3 years ago

Read 2 more answers

Mohamed surveyed his class on their favorite candy bar. 8 picked Snickers. 6 picked Kit Kats. 6 picked Milky Ways. If he applied

Gnom [1K]

Answer:

600:450:450

Step-by-step explanation:

8+6+6= 20

1500/20=75

8*75= 600

6*75= 450

6*75=450

Check:

600/75= 8

450/75= 6

450/75=6

3 0

3 years ago

Anyone know the answer to this question?

denpristay [2]

Answer:

sorry i dont know how to solve this

Step-by-step explanation:

5 0

3 years ago

Please help i will gove you brainliest if you show explanation ​

Please help i will gove you brainliest if you show explanation