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3 years ago

Evaluate and simplify if possible:

Mathematics

1 answer:

Yuki888 [10]3 years ago

3 0

$\frac{2x(3y - 4z)}{3(5x + 4z)}$ Plug in the given values
$\frac{2(4)(3(-1) - 4(-3)}{3(5(4) + 4(-3)}$ Multiply where needed
$\frac{8(-3 + 12}{3(20 - 12)}$ Add and subtract inside the parentheses
$\frac{8(9)}{3(8)}$ Multiply
$\frac{72}{24}$
3

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Find sec A and cot B exactly if a = 8 and b = 7.

Shtirlitz [24]

Answer:

sec A= 1.01 and cot B =8.25

Step-by-step explanation:

Given :

sec A and cotB if a =8 and b=7

Now,

= $sec A=\frac{1}{cos A} \\\\\frac{1}{cos 8} \\\\\frac{1}{0.99} \\1.01$

and

$cot B=\frac{cosB}{sin B} \\cotB=\frac{cos 7}{sin7} \\cot B =\frac{0.99}{0.12} \\cot B =8.25$

Therefore, answer will be sec A= 1.01 and cot B =8.25

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3 years ago

a box holds red pens and blue pens the ratio of red pens to blue pens is 1 to 4 The box holds 12 more blue pens than red pens wh

Genrish500 [490]

Answer:

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3 years ago

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kodGreya [7K]

Answer:

1. y = -3^ x Translated up by 1 unit 2.

2.y = 3^ -x Reflected over the y-axis 3.

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5. y = 3^ x + 1 Translated left by 1 unit 6.

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Step-by-step explanation:

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FromTheMoon [43]

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Step-by-step explanation:

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6*2.5=15

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