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2 years ago

12

Martina begins a five at sea level. She dives down 20 feet, and then rises 7 feet. She dives again, going down 9 more feet. How

far below sea level is Martina?

1 answer:

mojhsa [17]2 years ago

4 0

Answer:

<h2>22<em> </em><em>feet</em><em> </em><em>below</em></h2>

Step-by-step explanation:

<h2>Total down 20+9=29</h2><h2>Total up =7</h2><h2>Net = 29-7=22feet</h2>

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I need hlep asap :$:)):):

LiRa [457]

Answer:

$w\geq -2$

Step-by-step explanation:

Distribute the 5 into the parentheses (multiply them both by 5)

$15.5w+6.5\geq -25$

Subtract the 6.5 from -25.

$15.5w\geq -31.5$

Divide -31.5 by 15.5.

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3 years ago

Sketch the graph of 5x+7y=35, include the intercepts

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2 years ago

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Consider a refrigerator that consumes 320 W of elec- tric power when it is running. If the refrigerator runs only one quarter of

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Answer: The refrigerator cost in this month is $4.5 approximately.

Step-by-step explanation:

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3 years ago

The original price of water skis was $200. What is the percent of discount?

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3 years ago

Find the area of this irregular polygon.

Rainbow [258]

Answer:

970m^{2}

Step-by-step explanation:

This polygon can be divided in two figures: one is a triangle, an the other one is a square.

We'll begin calculating the triangle's area, using the following formula:

$At= \frac{b.h}{2}$

Where:

$H= height = 30 m$

$B = 9 m + 9 m + 20 m = 38 m$

As you can see, I added both sides of the triangle that measure 9 m and also the lenght of the square that measures 20 m! This added up is what the base of the triangle measures on total.

$At= \frac{38 m .30 m}{2}$

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Now we are going to calculate the square's area, that is much more simple:

$As= L^{2}$

Where:

$L=20 m$

$As= (20 m)^{2} = 400m^{2}$

To know the whole figure's area, we add up both areas:

$A = At+As = 570m^{2} +400m^{2}=970m^{2}$

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3 years ago