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2 years ago

The two figures below are similar. The larger figure is the pre-image. What is the scale factor?

Mathematics

1 answer:

taurus [48]2 years ago

7 0

Answer:

5:1

Step-by-step explanation:

The sides on the bigger triangle is 5 times the size of the sides on the smaller triangle.

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Ymorist [56]

The answer is C. 65........

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3 years ago

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John has a boat that will travel at the rate of 15 kph in still water. He can go upstream for 35 km in the same time it takes to

Otrada [13]

Answer:

The boat traveling at 24 kph when John goes downstream.

Step-by-step explanation:

We are given the following in the question:

John has a boat that will travel at the rate of 15 kph in still water.

Let x be the speed of the current.

Speed of boat in upstream

$(15-x)\text{ kph}$

Speed of water in downstream

$(15+x)\text{ kph}$

Relation:

$\text{Speed} = \dfrac{\text{Distance}}{\text{Time}}$

We have to find the speed of boat in downstream.

Time to travel upstream for 35 km = Time to travel 140 km downstream

$\displaystyle\frac{35}{15-x}=\frac{140}{15+x}\\\\35(15+x) = 140(15-x)\\525 + 35x = 2100 - 140x\\175x = 1575\\x = 9$

Thus, speed of current is 9 kph.

Speed of boat in downstream = 15 + 9 = 24 kph.

Thus, the boat traveling at 24 kph when John goes downstream.

4 0

3 years ago

Which polynomial correctly combines the like terms and puts the given polynomial in standard form?

Minchanka [31]

Answer: $-5x^3y^3+8x^4y^2-7xy^5+x^2y^4+8x^6$

Step-by-step explanation:

$-5x^3y^3+8x^4y^2-xy^5-2x^2y^4+8x^6+3x^2y^4-6xy^5$

$-5x^3y^3+8x^4y^2+(-xy^5-6xy^5)+(-2x^2y^4+3x^2y^4)+8x^6$

$-5x^3y^3+8x^4y^2+(-7xy^5)+(x^2y^4)+8x^6$

$-5x^3y^3+8x^4y^2-7xy^5+x^2y^4+8x^6$

8 0

3 years ago

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Yo help<br><br> NO LINKS PLS

s344n2d4d5 [400]

Answer:

19 square millimeter

Step-by-step explanation:

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3 years ago

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Evaluate x + sq root(yz) when x = 3, y = 2, and z = –8.

Alex_Xolod [135]

Just remember $\sqrt{-1} = i$

Sub in the numbers:
$3 + \sqrt{-16} = 3+ \sqrt{16}\sqrt{-1} = 3 + 4i$

7 0

3 years ago