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Lostsunrise [7]
3 years ago
7

Item 18 A triangular sail has a base of 4 feet and a height of 10 feet. What is the area of a sail with double the base and doub

le the height?
Mathematics
1 answer:
nlexa [21]3 years ago
6 0

Answer:

80{ft}^{2}

a \:  =  \frac{1}{2} b \times h \\ a =  \frac{1}{2}  \times 8 \times 20   \\ a=  \frac{1}{2}  \times 160  \\ a = 80

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a living room wall is 13 feet long. How far from the corner would you hace to the edge of a 3ft 8in shelf for it to be centered
Sunny_sXe [5.5K]
It would be centered togethered.
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3 years ago
Which shows another way to write 9.54?
Lelu [443]

Answer:

It would be C

Step-by-step explanation:

3 0
3 years ago
I’m need this worked out step by step by tonight
Pie

9514 1404 393

Answer:

  -3 ≤ x ≤ 19/3

Step-by-step explanation:

This inequality can be resolved to a compound inequality:

  -7 ≤ (3x -5)/2 ≤ 7

Multiply all parts by 2.

  -14 ≤ 3x -5 ≤ 14

Add 5 to all parts.

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Divide all parts by 3.

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_____

<em>Additional comment</em>

If you subtract 7 from both sides of the given inequality, it becomes ...

  |(3x -5)/2| -7 ≤ 0

Then you're looking for the values of x that bound the region where the graph is below the x-axis. Those are shown in the attachment. For graphing purposes, I find this comparison to zero works well.

__

For an algebraic solution, I like the compound inequality method shown above. That only works well when the inequality is of the form ...

  |f(x)| < (some number) . . . . or ≤

If the inequality symbol points away from the absolute value expression, or if the (some number) expression involves the variable, then it is probably better to write the inequality in two parts with appropriate domain specifications:

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Any solutions to these inequalities must respect their domains.

8 0
2 years ago
35% of the students at charles drew middle school are 6th graders if there are 84 sixth graders what is the total number of stud
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Step-by-step explanation:

Let x be the total number of students in the school.

Given: 35% of the students at Charles drew middle school are 6th graders.

i.e. Number of sixth graders = 35% of x = 0.35x   [35% = 0.35]

Since there are 84 sixth graders in the school,

So  0.35x=84

Divide both sides by 0.35, we get

x=\dfrac{84}{0.35}=\dfrac{84\times100}{35}=240

Hence, the total number of student in the school  = 240.

6 0
3 years ago
Order these values from smallest (A) to largest (F)
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We need the values to answer this question
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3 years ago
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