3 years ago

Which equation can be used to find one of the missing side lengths in the triangle?

Mathematics

1 answer:

goblinko [34]3 years ago

7 0

Cos60 = BC / AB
Cos60 = a/12

answer is D. last one
Cos60 = a/12

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Miss penny inherits £650. She decides to save some of the money and spend the rest. The ratio of saving to spending money is 9:4

blsea [12.9K]

Answer:

Saving=£450

Spent=£200

Step-by-step explanation:

Ratio of saving to spending is 9:4

She inherits £650

So to determine her saving

It will be

9+4=13

Since her saving is 9

So, 9/13 × 650

5850/13

=450

So her saving is£450

To determine what she spent

4/13 × 650

2600/13

200

Saving=£450

Spent=£200

3 0

3 years ago

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Please help.<br> Is algebra.

lara [203]

Answer:

1) 0

2) -6

Step-by-step explanation:

Any number to the ⁰th power is 1.

A negative exponent flips the fraction.

4 0

3 years ago

a stadium with 80 rows has 20 seats in the first rows,30 in the second,and so on.how many total seats are in the stadium

joja [24]

Answer: there are 2,000 seats in total

5 0

3 years ago

200 + 10x = 120 + 15x now solve the equation to find x, the number of hours that both companies will charge the same ammount

torisob [31]

Answer:

Step-by-step explanation:

Given the equation, $200 + 10x = 120 + 15x$ , let's solve for x as follows,

Subtract 200 from both sides

$200 + 10x - 200 = 120 + 15x - 200$

$10x = - 80 + 15x$

Subtract 15x from both sides

$10x - 15x = - 80 + 15x - 15x$

$-5x = - 80$

Divide both sides by -5

$\frac{-5x}{-5} = \frac{-80}{5}$

$x = 16$

8 0

3 years ago

Finish writing the equation of the line y= -3/2x+?, given the points (6, -5) and (-2, 7).

anastassius [24]

Answer:

y=-3/2x+4

Step-by-step explanation:

In order to solve this you need to graph the points and then draw a line threw them. The place where the line crosses through the y-intercept is the value for b in y=mx+b.

6 0

3 years ago