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2 years ago

10

Simplify the expression -|-5 x (-7)|

1 answer:

Andrei [34K]2 years ago

7 0

Answer:

the simplified expression would be 35

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<img src="https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B5%7D%7B8%7D%20%20%2B%20%20%5Cfrac%7B1%7D%7B4%7D%20" id="TexFormula1" title

bagirrra123 [75]

Answer:

$\large\boxed{-\dfrac{5}{8}+\dfrac{1}{4}=-\dfrac{3}{8}}$

Step-by-step explanation:

$-\dfrac{5}{8}+\dfrac{1}{4}=\dfrac{1}{4}+\left(-\dfrac{5}{8}\right)=\dfrac{1}{4}-\dfrac{5}{8}\\\\\text{find LCD:}\\\\8=2\cdot4,\ \text{therefore. LCD(4, 8) = 8}\\\\\dfrac{1}{4}=\dfrac{1\cdot2}{4\cdot2}=\dfrac{2}{8}\\\\\text{continuing}\\\\=\dfrac{2}{8}-\dfrac{5}{8}=\dfrac{2-5}{8}=-\dfrac{3}{8}$

4 0

2 years ago

What is the equation of the line passing through the points (2, -1) and (5, -10) in slope intercept form

Nitella [24]

Answer:

-3x+5

Step-by-step explanation:

y2-y1/x2-x1

3 0

2 years ago

Write an equation in slope-intercept form of the line

Blizzard [7]

Answer:

y=-6x+42

Step-by-step explanation:

answer is able

8 0

3 years ago

Which expression is equivalent to 4^6 x 4^ -8

vesna_86 [32]

4^{-2} is the simplified version, exponents add or subtract when multipled, and the answer is .0625

4 0

3 years ago

The cosine rule calculate tha angle of r 7.2 3,7 5.2

Leya [2.2K]

Given:

Consider the below figure attached with this question.

To find:

The measure of angle r by using the cosine rule.

Solution:

According to Law of Cosine,

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

Using the Law of Cosine, we get

$(7.2)^2=(3.7)^2+(5.2)^2-2(3.7)(5.2)\cos r$

$51.84=13.69+27.04-38.48\cos r$

$51.84=40.73-38.48\cos r$

$51.84-40.73=-38.48\cos r$

On further simplification, we get

$11.11=-38.48\cos r$

$\dfrac{11.11}{-38.48}=\cos r$

$-0.2887=\cos r$

$\cos^{-1}(-0.2887)=r$

$106.780143=r$

$r\approx 106.78$

Therefore, the measure of angle r is 106.78 degrees.

7 0

2 years ago