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blondinia [14]
3 years ago
15

Giving 40 points and brainiest to answer these trigonometry questions

Mathematics
1 answer:
Semenov [28]3 years ago
8 0

BC = 8i + 6

This is the answer for the first question, i'm so so sorry but i'm not sure what the answer is to the second one.

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Find a1 when d= - 1 and a7= -2
Pie

Answer:

  • a₁ = 4

Step-by-step explanation:

<u>Given</u>

  • d = - 1
  • a₇ = - 2

<u>Find</u> a₁

Use the nth term equation of AP

  • aₙ = a₁ + (n - 1)d

Apply to the given case and solve for a₁

  • - 2 = a₁ + 6(- 1)
  • - 2 = a₁ - 6
  • a₁ = 6 - 2
  • a₁ = 4
5 0
2 years ago
Solve using the Quadratic Formula. 122+6−5=0
tensa zangetsu [6.8K]

Step-by-step explanation:

You can't use quadratic formula in this

5 0
2 years ago
Ben earns $12,800 a year. About 15% is taken out for taxes.How much is taken out for taxes?
Gnoma [55]
$1920 is taken out for taxes
7 0
3 years ago
Given that 100 centimeters is equal to 1 meter, covent 2.2 meters to centimeters.
alina1380 [7]
You have to add on to zeros to the number 2 and because there is a decimal point, that counts as a zero added. the stages:
2.2
22
220
your answer is 220 cm
3 0
4 years ago
Read 2 more answers
Evan and Riley are detectives at the Super Sleuths Detective Agency. Even solved 7/9 of the mysteries last year. Riley solved 14
Kobotan [32]

Answer:

Step-by-step explanation:

Let the number of mysteries solved=x, then according to question, number of mysteries Evan solved=\frac{7}{9}x, also together they solve all the mysteries, thus

14+\frac{7}{9}x=x

14=x-\frac{7}{9}x

14=\frac{9x-7x}{9}

14=\frac{2x}{9}

2x=126

x=63

Thus, total number of mysteries solved=63.

Also, total number of mysteries Evan solved=\frac{7}{9}x= \frac{7}{9}{\times}63=49.

5 0
3 years ago
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