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3 years ago

Plz, answer this it is really easy.

Mathematics

1 answer:

dimulka [17.4K]3 years ago

7 0

Answer:

v = 17.4 meters

Step-by-step explanation:

This is a triangle with height (red dotted line) given.

The area of a triangle is given by the formula:

$A=\frac{1}{2}bh$

Where

A is the area

b is the base length

h is the height

Given height = 12, and

area = 104.4

THe base is labeled as "v", so we find v by replacing into formula:

$A=\frac{1}{2}bh\\104.4=\frac{1}{2}(v)(12)\\104.4=6v\\v=\frac{104.4}{6}\\v=17.4$

The base, v, is 17.4 meters

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F+G:

$F+G=\begin{bmatrix}{-1.8} & {-8.6} & {} \\ {2.85} & {-1.4} & {} \\ {-1.8} & {5.1} & {}\end{bmatrix}+\begin{bmatrix}{1.32} & {-1.9} & {} \\ {2.25} & {0.0} & {} \\ {-6.2} & {1.4} & {}\end{bmatrix}$

Then, add the elements that occupy the same position:

$H=\begin{bmatrix}{-1.8+1.32} & {-8.6+(-1.9)} & {} \\ {2.85+2.25} & {-1.4+0.0} & {} \\ {-1.8+(-6.2)} & {5.1+1.4} & {}\end{bmatrix}$

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So, we find the element at address h31:

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8 0

1 year ago

Please help me answer this question.

Alex787 [66]

1. Change x = 4t into x = 3t

$4t\cdot\frac{3}{4}=3t$ so

$y=(\frac{3}{4}t)^2-1=\frac{9}{16}t^2-1$

Answer A and D are wrong.

2. Change x = 4t into x = 2t

$4t\cdot\frac{1}{2}=2t$ and

$y=(\frac{1}{2}t)^2-1=\frac{t^2}{4}-1$

Answer b is correct.

3. Change x = 4t into x = 8t

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$y=(2t)^2-1=4t^2-1$

Answer C. is correct, E. is wrong.

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3 years ago

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Answer:

How many general admission tickets were purchased? __136__

How many upper reserved tickets we purchased? _300_

Step-by-step explanation:

Let the number of general tickets = g.

Let the number of reserved tickets = r.

6.5g + 8r = 3284

g + r = 436

6.5g + 8r = 3284

(+) -8g + -8r = -3488

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-1.5g = -204

g = 136

g + r = 436

136 + r = 436

r = 300

Answer:

How many general admission tickets were purchased? __136__

How many upper reserved tickets we purchased? _300_

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