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3 years ago

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:

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

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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

natita [175]

5.124+6.35+7.42+8.646=27.54 miles.

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3 years ago

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

8 0

3 years ago

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Answer quickly thank you so much!!!!!!!!!!!!!!!!!!!!!

marin [14]

The answer is C I think

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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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