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natulia [17]
2 years ago
9

Can somebody help me with questions 11 and 12 I’ll appreciate it!

Mathematics
2 answers:
Phoenix [80]2 years ago
5 0
11) 88140 divided by 4520 = 19.5 meaning you would need 20 fire extinguishers
Gala2k [10]2 years ago
5 0
Yah why she said I am just here for points
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Plz answer both for 10 points.!!! Thx for the help.
ratelena [41]
Both questions make use of the formula for the area of a triangle:
.. A = (1/2)*b*h

23. A = (1/2)*b*h
.. A = (1/2)*x*7 . . . . substitute the given values
.. A = 3.5x . . . . . . . simplified


24. A = (1/2)*b*h
.. 84.5 = (1/2)*13*h . . . . . substitute the given values

.. 2*84.5/13 = h = 13 . . . .solve for h
The height of the triangle is 13 cm.
4 0
3 years ago
Write an inequality that represents the following scenario: a number divided by 10 increased by 8 is greater than 15.
Sonbull [250]
\frac{x}{10} + 8 > 15
4 0
3 years ago
Find the derivative of StartFraction d Over dx EndFraction Integral from 0 to x cubed e Superscript negative t Baseline font siz
Valentin [98]

Answer: (a) e ^ -3x (b)e^-3x

Step-by-step explanation:

I suggest the equation is:

d/dx[integral (e^-3t) dt

First we integrate e^-3tdt

Integral(e ^ -3t dt) as shown in attachment and then we differentiate the result as shown in the attachment.

(b) to differentiate the integral let x = t, and substitute into the expression.

Therefore dx = dt

Hence, d/dx[integral (e ^-3x dx)] = e^-3x

8 0
3 years ago
Read 2 more answers
Which sets of ordered pairs represent functions from A to B? (Select all that apply.) A = {a, b, c} and B = {3, 4, 5, 6}
sesenic [268]

Answer:

See Explanation

Step-by-step explanation:

<em>The question has mission options; However, the question is still solvable.</em>

Given

A = \{a,b,c\}

B = \{3,4,5,6\}

Required

Determine possible ordered pairs of A to B

A function is of the form (x,y)

Let A be the range of the function and B, the domain

Let (x,y) be a function of A to B, where x represents any of the values in A sets and y represents any of the values in B

A ordered pair can only be regarded as a function if and only if it has unique y-values

Hence, a possible ordered pair is:

(A,B) = \{(a,3),(b,4),(c,5)\}

Another possible ordered pair is

(A,B) = \{(a,4),(b,5),(c,6)\}

<em>Note that there as as many as possible ordered pair as long as the y-values are unique</em>

5 0
3 years ago
Mike plans to paint a wall in his living room blue.that wall measures 10 feet tall and 8 feet wide.what is the area of the wall
Lorico [155]

Answer:

Step-by-step explanation:

L x W

10 x 8

<h3>80ft squared </h3><h3 /><h3 /><h3 />
5 0
3 years ago
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