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3 years ago

Help me please with the last 2 questions!

Mathematics

1 answer:

madam [21]3 years ago

6 0

Answer:

what grade work is this 8th?

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The half-life of a radioactive substance is the time required for half of a sample to undergo radioactive decay,or for the quant

NikAS [45]

Answer:

That's two half lives. 5/8 * 2 * 2 = 20/8 = 5/2 pounds7/8 * 2 * 2 = 28/8 = 7/2 pounds

Step-by-step explanation:

Brainliest plz?

4 0

3 years ago

HELP PLEASE!!!! ILL MARK U BRAINLESS FIRST PERSON TO ANSWER

DerKrebs [107]

Answer:

9/16 <fraction 0.5625 <decimal 56.25%

Step-by-step explanation:

3 0

3 years ago

What is the area of the shaded region?<br><br> Answer: _____ mm^2

Deffense [45]

First we would find the area of the entire thing,

A=1/2(base)(height)
so A = 1/2(5)(12) = 30 mm^2

next we find the area of the smaller triangle,
A = 1/2(4)(3) = 6 mm^2

Then we subtract the area of the smaller triangle from the area of the larger one

30-6 = 24 mm^2

3 0

3 years ago

Solve the triangle.<br> A = 32°, a = 19, b = 14

Paha777 [63]

Answer:

A = 32°, a = 19, b = 14, B=22.98°, C = 125.02°, c = 29.36

Step-by-step explanation:

We have two sides of the triangle and we have an angle.

A = 32 °, a = 19, b = 14

We use the sine theorem to find the angle B.

We know that according to the sine theorem it is true that:

$\frac{sin(A)}{a}=\frac{sin(B)}{b}=\frac{sin(C)}{c}$

$\frac{sin(32\°)}{19}=\frac{sin(B)}{14}$

$sin(B)=14*\frac{sin(32\°)}{19}\\\\B=Arcsin(14*\frac{sin(32\°)}{19})\\\\B=22.98\°$

We know that the sum of the internal angles of a triangle is always equal to 180.

So:

$C=180-32-22.98\\\\C=125.02\°$

Finally we find the c side

$\frac{sin(A)}{a}=\frac{sin(C)}{c}$

$\frac{sin(32\°)}{19}=\frac{sin(125.02)}{c}$

$0.02789=\frac{sin(125.02)}{c}$

$c=\frac{sin(125.02)}{0.02789}\\\\c=29.36$

8 0

3 years ago

1. Use the graph of the rational function

Mrrafil [7]

Answer:

As $x \to -3^{+}, f(x) \to -\infty$

Step-by-step explanation:

Given:

From the graph, we can conclude that:

The function has vertical asymptotes at $x=-3\ and\ x=2$

The function has horizontal asymptote at $f(x)=0$

Vertical asymptotes are those values of 'x' for which the functions tends towards infinity. Horizontal asymptote is the value of the function as the 'x' value tends to infinity.

Now, as $x \to -3^{+}$ means the right hand limit of the function at $x=-3$

From the graph, the right hand limit is the right side of the asymptote of the function at $x = -3$ . The right side shows that the function is tending towards negative infinity.

Therefore, As $x \to -3^{+}, f(x) \to -\infty$

4 0

4 years ago