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3 years ago

Help me please................................

Mathematics

1 answer:

wariber [46]3 years ago

7 0

Pretty sure its b 50/100% sure

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A 70-meter path surrounds a rectangular garden. The width of the garden is two-thirds its length. Find the length and the width.

bagirrra123 [75]

$width=\frac{2}{3}length\\\\
70=2width+2length\\\\
70=2length+2(\frac{2}{3}length)\\\\
70=2length+\frac{4}{3}length\\\\
70=\frac{10}{3}length\ \ | divide\ by\ \frac{10}{3}\\\\
70*\frac{3}{10}=length\\\\
length=21m\\\\
width=\frac{2}{3}*21=14m
$

7 0

3 years ago

For which values of c does the following polynomial have two complex roots? X^2+4x+C

Grace [21]

For this case we have that by definition, the discriminant of a quadratic expression is given by:

$d = b ^ 2-4 (a) (c)$

If the discriminant is less than zero then the expression has two different complex roots.

In this case we have the following expression:

$x ^ 2 + 4x + c$

So we have to:

$a = 1\\b = 4\\c = c\\$

The discriminant is given by:

$d = 4 ^ 2-4 (1) (c)\\d = 16-4c$

Then, if we want two complex roots it must be fulfilled that:

$16-4c$

Thus, the expression has two complex roots for all values greater than 4.

ANswer:

$c> 4$

5 0

3 years ago

Pls help me figure out the slope

cluponka [151]

Answer:

$m=\frac{-4}{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (-3, 1)

Point (2, -3)

Step 2: Find slope m

Substitute: $m=\frac{-3-1}{2+3}$
Subtract/Add: $m=\frac{-4}{5}$

7 0

3 years ago

THE PROBABILITY OF AN EVENT IS 0.34. WHAT IS THE PROBABILITY THAT IT WILL NOT OCCUR.

Irina18 [472]

Answer:

0.66

Step-by-step explanation:

1.00 - 0.34 = 0.66

The probability of certainty is 100%=1

If Probability(p)=0.34

then

0.34+Probability=1

Probability(!p)=1−0.34=0.66

5 0

2 years ago

500 POINTS PLEASE HELP FASTEST ANSWER WILL BE MARKED BRAINLIEST

diamong [38]

Answer:

Five number summary

Step-by-step explanation:

I just relearned this yesterday

8 0

2 years ago

Read 2 more answers