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4 years ago

Unit Test

Mathematics

1 answer:

natima [27]4 years ago

3 0

Answer:

The density approaches infinity.

Step-by-step explanation:

dont need explanation

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On a map scale two neighboring towns are 2.4 inches apart. The actual straight line distance between the two towns is 36 miles.

ladessa [460]

Answer:

The scale of the map is 1 inch is 15 miles.

Step-by-step explanation:

Given:

Distance of neighboring towns on map = 2.4 inches

Actual Distance of neighboring towns = 36 miles.

We need to find the scale of map;

Solution:

Now we know that;

On map 2.4 inches = 36 miles actual distance.

So on map 1 inch = Actual distance in 1 inch of scaling on map.

By using Unitary method we get;

Actual distance in 1 inch of scaling on map = $\frac{36}{2.4} =15\ miles$

Hence The scale of the map is 1 inch is 15 miles.

7 0

3 years ago

The dining room table in Logan’s dollhouse is a replica of the dining room table in the actual house . The replica is 4 7/8 in.

Gala2k [10]

To find the length of the actual table, multiply the replica's length by the scale factor:
4 7/8 x 1/16 = ___ ↓
39/8 x 1/16 = 39/128.

Hope this helps,
♥A.W.E.S.W.A.N.♥

8 0

4 years ago

Work out the following, giving your answer to the simplest form 5 3/5/2 2/3

saveliy_v [14]

Answer:

2 1/10

Step-by-step explanation:

We suppose you want the quotient of the mixed numbers 5 3/5 and 2 2/3.

(5 3/5)/(2 2/3) = (28/5)/(8/3) = (28/5)(3/8) = (4)(7)(3)/(5(4)(2)) = 21/10

= 2 1/10

3 0

3 years ago

Find the derivative of y=sin^(2)(x)cos^(2)(x)

wariber [46]

$sin^{2}x \ cos^{2} x= \frac{1}{2} (1-cos2x) \times \frac{1}{2} (1+cos2x) \\ = \frac{1}{4} (1- cos^{2} 2x) \\ = \frac{1}{4} ( sin^{2} 2x +cos^{2} 2x- cos^{2} 2x) \\ = \frac{1}{4} ( sin^{2} 2x) \\ = \frac{1}{4} ( \frac{1}{2} (1-cos2(2x))) \\ = \frac{1}{8} (1-cos4x) \\ \frac{d}{dx} (sin^{2}x \ cos^{2} x)= \frac{1}{8} \frac{d}{dx} (1-cos4x) \\ = \frac{1}{8} [-4(-sin4x) \\ \frac{1}{2} sin4x$

5 0

3 years ago

RATING BRAINLIEST Which of the following demonstrates the Distributive Property?

ra1l [238]

Answer:

D: 4(2a+3)=8a+3

Step-by-step explanation:

4x2a = 8a and 4x3 = 12

4 0

2 years ago

Read 2 more answers