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4 years ago

Fill in the blank 1.05 assignment

Mathematics

1 answer:

Anna11 [10]4 years ago

3 0

Answer:

Hey there!

The answer is -12

They are using the foil method, First, Outer, Inner, Last.

Let me know if this helps :)

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Which choice describes a question that could be answered by moving the decimal point 3 places to the right?

krek1111 [17]

The answer is B.

When we multiply by 1000, we move the decimal place 3 times to the right(or add 3 zeroes).

Just count the number of zeroes and move it that many places to the right(if it starts with '1').

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4 years ago

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Help me asap pleaseeee

Darya [45]

Answer:

Last option is the correct choice.

Step-by-step explanation:

$\frac{36}{24}=\frac{12}{x}\\\\\Rightarrow x=8$

Best Regards!

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3 years ago

Matt is repairing a gate and needs to nail a brace diagonally to strengthen the posts. If the height of post is 48 inches and th

soldi70 [24.7K]

Hello,

$48^{2}$ + $64^{2}$

2304 + 4096 = 6400

√6400 = 80 in

The length of the diagonal brace would be 80 inches.

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3 years ago

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Which sum or difference identity would you use to verify that cos (180° - q) = -cos q?

Phantasy [73]

Answer:

$\cos (a-b)=\cos a \cos b+\sin a \sin b$

Step-by-step explanation:

Given : $\cos (180^{\circ}-q)=-\cos q$

We have to write which identity we will use to prove the given statement.

Consider $\cos (180^{\circ}-q)=-\cos q$

Take left hand side of given expression $\cos (180^{\circ}-q)$

We know

$\cos (a-b)=\cos a \cos b+\sin a \sin b$

Comparing , we get, a= 180° and b = q

Substitute , we get,

$\cos (180^{\circ}-q)=\cos 180^{\circ} \cos (q)+\sin q \sin 180^{\circ}$

Also, we know $\sin 180^{\circ}=0$ and $\cos 180^{\circ}=-1$

Substitute, we get,

$\cos (180^{\circ}-q)=-1\cdot \cos (q)+\sin q \cdot 0$

Simplify , we get,

$\cos (180^{\circ}-q)=-\cos (q)$

Hence, use difference identity to prove the given result.

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4 years ago

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673 divided by 458 please HELPPP!!!!

levacccp [35]

Answer:

1.46943231441048

Step-by-step explanation:

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3 years ago