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3 years ago

What is the answer for -3(-5) - 16?

Mathematics

1 answer:

harina [27]3 years ago

4 0

Answer:

-1

Step-by-step explanation:

-3x(-5)-16

15-16

-1

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Nady [450]

It’s A. 45.

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3 years ago

Using the Law of Cosines, in triangle DEF, if e=18yd, d=10yd, f=22yd, find measurement of angle D

Ivahew [28]

Check the picture below.

$\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}
\\\\\\
\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}=cos(C)\implies cos^{-1}\left(\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}\right)=\measuredangle C\\\\
-------------------------------\\\\
\begin{cases}
d=10\\
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3 years ago

2 The diagram shows a

Strike441 [17]

Diagram? There is no diagram given.

$i = \frac{180(n - 2)}{n}$

$i = \frac{180(12 - 2)}{12} = \frac{180(10)}{12} = \frac{1800}{12} \\ i = 150\degree$

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3 years ago

Determine the diameter of a softball if it circumference is 5pi

Paha777 [63]

5/3.14= 1.592
= 1.59

The formula to find the circumference is C= pi(d)
So to find the diameter if you have the circumference is to do the circumference divided by pi

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1 year ago

Read 2 more answers

Find an input that yield an output of -1 rule y=-2x+33

djyliett [7]

Input (x-value)

Output (y-value)

You need to find the x-value that produces a y-value of -1. Since you know:

y = -1 Use the rule, and substitute/plug this into the equation

y = -2x + 33 Plug in -1 for "y" in the equation since y = -1

-1 = -2x + 33 Subtract 33 on both sides

-1 - 33 = -2x + 33 - 33

-34 = -2x Divide -2 on both sides to get "x" by itself

$\frac{-34}{-2}=\frac{-2x}{-2}$

17 = x

An input of 17 yields an output of -1

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3 years ago