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stepan [7]
3 years ago
7

Sin 40 cos 50 + cos 40 sin 50 find the value​

Mathematics
1 answer:
skad [1K]3 years ago
4 0

Answer:

= 1

Step-by-step explanation:

0.4131 + 0.5868 = 0.999 --> 1

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Find the equation of the sphere in standard form centered at (−6,10,5) with radius 5.
Dovator [93]

Answer:

The equation of the sphere in standard form is

x^{2} +y^{2}+z^{2} +12 x-20 y-10 z+136=0

Step-by-step explanation:

<u>Step 1</u>:-

The equation of the sphere having center and radius is

(x-h)^{2} +(y-k)^{2} +(z-l)^{2} = r^{2}

Given centered of the sphere is (-6,10,5) and radius r=5

(x-(-6))^{2} +(y-10)^{2} +(z-5)^{2} = 5^{2}

on simplification,we get

using (a+b)^{2} =a^{2} +2 a b+b^{2}

using (a-b)^{2} =a^{2} -2 a b+b^{2}

simplify , we get

x^{2} +y^{2}+z^{2} +12 x-20 y-10 z+136=0

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3 years ago
I need help please! i don’t understand this problem and it’s very confusing. hellllppp!!!
Elodia [21]
Check the picture below.

make sure your calculator is in Degree mode.

6 0
3 years ago
Erica wants to know how many books on average are in school libraries in her county. She randomly calls 50 school libraries in h
Rus_ich [418]
<span>valid. She used a representative sample
</span>because she correctly found the average and 18,000 is a reasonable number to get for a the problem
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3 years ago
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Can someone help with these? ik the answers i just don’t know how to show work
Nonamiya [84]

Step-by-step explanation:

use trigonometry ratios

8 0
3 years ago
And 18 ounce box of raisins cause $2.88 a 24 ounce box of raisins cost $3.60 which one is the better deal
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Answer:

the 24-ounce box

Step-by-step explanation:

18/2.88 = 6.25$

24/3.6 = 6.67$

8 0
2 years ago
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