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3 years ago

6

PLZ HELP!!! WILL GIVE BRAINLIEST!!! URGENT!!

1 answer:

docker41 [41]3 years ago

4 0

Answer:

The answer is -64.

explanation:

(6 8/25)÷(-1)-(-0.8)×(-0.1))

=-6.4

(-0.25÷1.25)-1 3/5÷(-5 1/3)

=0.1

-6.4÷0.1

= -64

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3 years ago

Andre and Elena are reading the same book over the 1 summer. Andre says he has read of the book. Elena ! says she has read 20 mo

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2 years ago

Three lines of crops in a garden form a triangular shape. Strawberries are planted in a 10 ft line and green beans are planted i

Marat540 [252]

Answer:

$p = 19.18$

Step-by-step explanation:

This question is illustrated using the attachment and will be solved using cosine formula

$a^2 = b^2 + c^2 - 2bcCosA$

<em>Let the strawberry side be s, the Green beans be b and the pumpkins be p.</em>

<em />

The cosine formula in this case is:

$g^2 = s^2 + p^2 - 2spCosG$

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$18^2 = 10^2 + p^2 - 2 * 10 * p * Cos\ 68$

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$p^2 - 7.5p - 224 = 0$

Using quadratic formula:

$p = \frac{-b\±\sqrt{b^2-4ac}}{2a}$

Where

$a = 1$

$b = -7.5$

$c = -224$

$p = \frac{-(-7.5)\±\sqrt{(-7.5)^2-4*1*-224}}{2*1}$

$p = \frac{7.5\±\sqrt{56.25+896}}{2}$

$p = \frac{7.5\±\sqrt{952.25}}{2}$

$p = \frac{7.5\± 30.86}{2}$

$p = \frac{7.5 + 30.86}{2}$ or $p = \frac{7.5 - 30.86}{2}$

$p = \frac{38.36}{2}$ or $p = \frac{-23.36}{2}$

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But length can not be negative.

So:

$p = 19.18$

6 0

2 years ago