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3 years ago

5

desmond frabracates a tiny microchip it is squre in shape messuring 7.5 millimeters on each side. draw desmond chip to scale on

the grid below.

1 answer:

kolezko [41]3 years ago

5 0

Answer: 15 by 15 units

Step-by-step explanation: brainliest plz and ty

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pls someone help i'm begging u this is so hard that like so many people failed to answer this.not lying actaully like 3 people t

Maurinko [17]

How don’t you understand that

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2 years ago

A ladder 16 feet long is leaning against the wall of a tall building. The base of the ladder is moving away from the wall at a r

svet-max [94.6K]

Answer:

a. 0.588

b. 0.0722

c. 4.576 sqft/sec

Step-by-step explanation:

Let b and h denote the base and height as indicated in the diagram. By pythagoras theorem, $h^2 + b^2 = 16^2 = 256 \dotsc\;(1)$ because it is a right angle triangle.

It is given that $\frac{db}{dt} = 1$

Now differentiate (1) with respect to t (time) :

$\displaystyle{2h\frac{dh}{dt} + 2b\frac{db}{dt} = 0 \implies \frac{dh}{dt} = -\frac{b}{h} \frac{db}{dt}}$

$\displaystyle{=-\frac{b}{\sqrt{256 - b^2}} \frac{db}{dt} = -\frac{8}{13.856} \times 1 = -0.588}$

The minus sign indicates that the value of h is actually decreasing. The required answer is 0.588.

b. From the diagram, infer that $16 \sin{\theta} = b$ . When b = 8, then $\theta = \arcsin{0.5} = \ang{30}$ .

Differentiate the above equation w.r.t t

$\displaystyle{16 \cos{\theta} \frac{d\theta}{dt} = \frac{db}{dt} \implies \frac{d\theta}{dt} = \frac{1}{16 \cos{\theta}} = \frac{1}{13.856} = \mathbf{0.0722}}$

c. The area of the triangle is given by $A = 0.5\times h \times b$ . Differentiating w.r.t t,

$\displatstyle{\frac{dA}{dt} = 0.5 b \frac{dh}{dt} + 0.5 h \frac{db}{dt}}$

Plugging in b = 8, h = 13.856, $\frac{dh}{dt} = -0.588$ ,

$\frac{dA}{dt} = -2.352 + 6.928 = \mathbf{4.576 ft^2/sec}$

8 0

4 years ago

Craig solicited donations for his school's jump-rope a-thon. He collected $13.00 in fixed donations and pledges totaling $1.50 f

charle [14.2K]

Answer:

25

Step-by-step explanation:

13+1.50m

13+1.50(8)

13+12

25

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3 years ago

The answer bNamamakakKkKkkKk

skad [1K]

That is really easy how don't you know

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3 years ago

Carpeting costs $9.99 a yard. If Jam buys 17.4 yards, how much will it cost her ?

guapka [62]

For this question you would have to multiply the cost ( $9.99 ) by how many yards are being bought (17.4) this is fairly simple , whip out your calculator . The answer is $173.83

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3 years ago