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2 years ago

5

Solve for x

ac{3-5x}{5}" alt="-7 \geq \frac{3-5x}{5}" align="absmiddle" class="latex-formula">

1 answer:

Levart [38]2 years ago

4 0

X is greater than or equal to 38/5

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The drawing below is of a regular pentagon. The measure for each interior angle in a regular pentagon is 108°. Angle A is supple

myrzilka [38]

Answer:

72°

Step-by-step explanation:

<u>The interior and exterior angles are supplementary:</u>

A + 108° = 180°
A = 180° - 108°
A = 72°

6 0

2 years ago

Find the LCM of 20 and 18.

dusya [7]

180 is the lcm for 20 and 18

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2 years ago

(PLEASE ANSWER: TIMED)The intensity, or loudness, of a sound can be measured in decibels (dB), according to the equation I(dB)=1

Mrac [35]

For this case we have the following equation:
$l(dB) = 10log( \frac{l}{lo} )$
We must replace the following value in the equation:
$l = 10^8lo$
Substituting we have:
$l(dB) = 10log( \frac{10^8lo}{lo} )$
Simplifying the given expression we have:
$l(dB) = 10log(10^8)$
Then, using logarithm properties in base 10, we can rewrite the expression:
$l(dB) = 10(8)$
Finally, making the product, the result is:
$l(dB) = 80$
Answer:
$l(dB) = 80$
option 4

3 0

2 years ago

Read 2 more answers

Write the expression in factored form s^2-20s-100

KatRina [158]

Answer:

The factors of given expression are 10+10√2 and 10-10√2.

Step-by-step explanation:

We have given a quadratic expression.

s²-20s-100

We have to find factors of given expression.

We use quadratic formula to find factors.

x = (-b±√b²-4ac) / 2a

From given expression, a = 1 , b = -20 and c = -100

Putting values in above formula, we have

x = (-(-20)±√(-20)²-4(1)(-100) ) / 2(1)

x = (20±√400+400 ) / 2

x = (20±√800) / 2

x = (20± √400×2) / 2

x = (20±20√2) / 2

x = 10±10√2

Hence, the factors of given expression are 10+10√2 and 10-10√2.

3 0

2 years ago

PLS HELP I NEED IT I will give u points

loris [4]

Answer:

15b

Step-by-step explanation:

3x5

3 0

2 years ago