3 years ago

Help me please I’m not good at math

Mathematics

1 answer:

Deffense [45]3 years ago

6 0

Answer:

i think the answer is 7/4

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Write the expression represented by the statement “7 times the sum of 2 and x.” Identity the factors in the expression.

Savatey [412]

Answer:

(7)2+x

Step-by-step explanation:

Seven times 2 plus x if you want to solve for it the answer would be 14x, I think.

5 0

3 years ago

Evaluate -19.2 + 87.31 please shoe work!

andrew11 [14]

Answer:

the answer is 68.11

Step-by-step explanation:

use symbolab I use it all the time

6 0

3 years ago

Read 2 more answers

1) what is 1/5 times 1/2 ?

Savatey [412]

1. 1/10
2. 3/5
3. 1/10
4. 1/6
5. 3/14

8 0

3 years ago

If A+B+C=<img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" class="latex-formula"

seraphim [82]

Answer:

$a + b + c = \pi \\ = > c= \pi - a - b \\ < = > \tan(c) = \tan(\pi - a - b) = -\tan(a + b)$

Step-by-step explanation:

we have:

$\tan(a) + \tan(b) + \tan(c) \\ = \tan(a) + \tan(b) - \tan(a + b) \\ = \tan( a) + \tan(b) - \frac{ \tan(a) + \tan(b) }{1 - \tan(a) \tan(b) } \\ = \frac{ ( \tan(a) + \tan(b) ) \tan(a) \tan(b) }{ \tan(a) \tan(b) - 1 } (1)$

we also have:

$\tan(a) \tan(b) \tan(c) \\ = - \tan(a) \tan(b) \tan(a + b) \\ = \frac{ -(\tan( a ) + \tan(b) ) \tan(a) \tan(b) }{1 - \tan(a) \tan(b) } \\ = \frac{( \tan(a) + \tan(b)) \tan(a) \tan(b) }{ \tan(a) \tan(b) - 1 } (2)$

from (1)(2) => proven

5 0

2 years ago

Determine if true:<br> 8x2-63=-40

prohojiy [21]

Answer:

False

Step-by-step explanation:

8x2=16

16-63=-47

-47=-40

The numbers do not match.

Hence, the equation is false.

3 0

2 years ago

Read 2 more answers