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3 years ago

Can I please get some help I keep getting the wrong answer

Mathematics

1 answer:

tiny-mole [99]3 years ago

7 0

Answer:

yes I can help you on that

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Which statements about opposites are true?

Naily [24]

Answer:

I think B and C are the only ones true

5 0

3 years ago

A. 28.8<br> B. 22.5<br> C. 27.2<br> D. 26.8

Rashid [163]

X/sin 42 = 43/sin 87

x = (43 * sin 42)/(sin 87)

x = 28.812

Answer: 28.8

5 0

3 years ago

Help please?

Lemur [1.5K]

Answer:

4/5 to the 5th power

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Expand and combine like terms (3z^5 +7z^2)^2

AVprozaik [17]

Answer:

$\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }$

Step-by-step explanation:

Since it's a perfect square, we can simply use the formula:

$\displaystyle{(ax+by)^2 = a^2x^2+2abxy+b^2y^2}$

Given the perfect square expression $\displaystyle{(3z^5+7z^2)^2}$ . Apply perfect square formula:

$\displaystyle{(3z^5+7z^2)^2 = 3^2(z^5)^2+2(3)(7)(z^5)(z^2) + 7^2(z^2)^2 }$

Knowing laws of exponent is mandatory when it comes to algebra. Recall that:

$\displaystyle{(a^m)^n = a^{mn}}\\\\\displaystyle{a^m \cdot a^n = a^{m+n}}$

Apply laws of exponent to simplify the terms or expression:

$\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }$

Since there are no like-terms to do operation with (these terms have different degrees so they are not considered to be like-terms.) Therefore, the final answer is:

$\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }$

8 0

1 year ago

A large room has a temperature of 70 degrees Fahrenheit. When a cup of tea is brought into the room, the tea has a temperature o

masya89 [10]

Answer:

91.3

Step-by-step explanation:

8 0

3 years ago