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morpeh [17]
2 years ago
12

Timothy wants to build a deck with a length that is 4 less than twice its width and an area that is at least 140 square feet. Wh

ich inequality can be solved to find possible widths for Timothy's deck?
Mathematics
1 answer:
Verizon [17]2 years ago
4 0

Answer:

2w^2 - 4w > 140

Step-by-step explanation:

Hi :)

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Find the measure of 14x+7+44+9x+3=180?​
IRISSAK [1]

Answer:

X = 40

Step-by-step explanation:

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Sandra throws an object straight up into the air with initial velocity of 38 ft per square from platform that is 30 ft above the
expeople1 [14]

Answer:

3 seconds.

Step-by-step explanation:

We have been given that Sandra throws an object straight up into the air with initial velocity of 38 ft per second from platform that is 30 ft above the ground.

To find the time it will take for object to hit the ground, we will use formula:  

h(t)=-16t^2+v_0t+h_0, where, v_0 represents initial velocity and h_0 represents initial height.

Upon substituting our given initial velocity and initial height, we will get:

h(t)=-16t^2+38t+30

We know that object will hit the ground, when height will be 0, so we will equate object's height equal to 0 and solve for t as:

-16t^2+38t+30=0

Divide by 2:

-8t^2+19t+15=0

Upon using quadratic formula, we will get:

t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-19\pm\sqrt{19^2-4(-8)(15)}}{2(-8)}

t=\frac{-19\pm\sqrt{361+480}}{-16}=\frac{-19\pm\sqrt{841}}{-16}

t=\frac{-19\pm29}{-16}

t=\frac{-19-29}{-16},t=\frac{-19+29}{-16}

t=\frac{-48}{-16},t=\frac{10}{-16}

t=3,t=-\frac{5}{8}

Since time cannot be negative, therefore, it will take 3 seconds for object to hit the ground.

7 0
2 years ago
Answer fast!!!!!!!!!!!!!!!!!!!!!!!!!!
Veronika [31]

Answer:

Choice b.

Step-by-step explanation:

170 is a little more than half of 330  so that's the onee.

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3 years ago
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