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gtnhenbr [62]
3 years ago
14

Can someone help me with this I don’t know that answer and I really want to pass please

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
7 0

Answer:

a

Step-by-step explanation:

this is because it is right

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Triangles ABC and DEF are mathematically similar. CB 9 cm FE 13.5 cm The area of triangle ABC is 34 cm?. Calculate the area of t
Sauron [17]

Answer:

9=100%

13,5=x

x=13,5×100/9

x=150%

it increased by 50%

so 34/100×150

area of DEF is 51 cm2

3 0
2 years ago
Four runners are training to compete as a team in a long race. At today’s practice, noah ran 5.124 miles, almirante ran 6.35 mil
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An experienced carpenter could build a house in 4 days. How much would he have if he worked for 2 days?
Novosadov [1.4K]
He would have half a house
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3 years ago
Please solve the following sum or difference identity.
xxTIMURxx [149]

Answer:

sin(A - B) = \frac{4}{5}

Step-by-step explanation:

Given:

sin(A) = \frac{24}{25}

sin(B) = -\frac{4}{5}

Need:

sin(A - B)

First, let's look at the identities:

sum: sin(A + B) = sinAcosB + cosAsinB

difference: sin(A - B) = sinAcosB - cosAsinB

The question asks to find sin(A - B); therefore, we need to use the difference identity.

Based on the given information (value and quadrant), we can draw reference triangles to find the simplified values of A and B.

sin(A) = \frac{24}{25}

cos(A) = \frac{7}{25}

sin(B) = -\frac{4}{5}

cos(B) = \frac{3}{5}

Plug these values into the difference identity formula.

sin(A - B) = sinAcosB - cosAsinB

sin(A - B) = (\frac{24}{25})(\frac{3}{5}) - (-\frac{4}{5})(\frac{7}{25})

Multiply.

sin(A - B) = (\frac{72}{125}) + (\frac{28}{125})

Add.

sin(A - B) = \frac{4}{5}

This is your answer.

Hope this helps!

6 0
3 years ago
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