3 years ago

What is the simplified form of the expression 0.3 (4x - 4y)?

Mathematics

1 answer:

Agata [3.3K]3 years ago

8 0

Answer:

1.2x-1.2y

Step-by-step explanation:

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Solve for a in terms of b and c:3a+4b=c

MariettaO [177]

We want a in terms of b and c: 3a+4b=c

Isolate 3a on the left side: 3a = c - 4b
Divide all terms by 3:

a = c/3 - 4b/3 (answer)

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3 years ago

Transversal t cuts parallel lines a and b as shown in the diagram. Which equation is necessarily true?

professor190 [17]

Answer:

D is true

Step-by-step explanation:

A, B, C, and E are supplementary pairs so they cant equel each other.

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3 years ago

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2 years ago

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What is the domain of y = log Subscript 4 Baseline (x + 3)?

LekaFEV [45]

Answer:

All real numbers greater than -3

Step-by-step explanation:

The domain of a log is the baseline is greater than 0.

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2 years ago

In AOPQ, o = 700 cm, p = 840 cm and q=620 cm. Find the measure of _P to the nearest degree

Westkost [7]

Given:

In triangle OPQ, o = 700 cm, p = 840 cm and q=620 cm.

To find:

The measure of angle P.

Solution:

According to the Law of Cosines:

$\cos A=\dfrac{b^2+c^2-a^2}{2bc}$

Using Law of Cosines in triangle OPQ, we get

$\cos P=\dfrac{o^2+q^2-p^2}{2oq}$

$\cos P=\dfrac{(700)^2+(620)^2-(840)^2}{2(700)(620)}$

$\cos P=\dfrac{490000+384400-705600}{868000}$

$\cos P=\dfrac{168800}{868000}$

On further simplification, we get

$\cos P=0.19447$

$P=\cos^{-1}(0.19447)$

$P=78.786236$

$P\approx 79$

Therefore, the measure of angle P is 79 degrees.

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3 years ago

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