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3 years ago

Mandis planned to spend RI 000 for shoes this week.

Mathematics

1 answer:

Alja [10]3 years ago

7 0

Answer:

733.05

Step-by-step explanation:

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PLEASE HELP!!!!

saveliy_v [14]

Answer:

Hi there!

Your answers are:

1) 38^10

2) 20^3

Step-by-step explanation:

1) Theres a property that goes like this:

(x^m)^n = x^mn

When you do a power of a power, you multiply them together!

2) There's a property that looks like this:

x^ m / x^n = x^ m-n

When dividing exponents, subtract!

Hope this helps!

8 0

3 years ago

If you multiply me by 2, then divide the answer by 2, then divide again by 2, you get a quotient of 5. What number am I?

Anuta_ua [19.1K]

The number is 10
10*2=20
20/2=10
10/2=5

3 0

3 years ago

A 100-foot rope from the top of a tree house to the ground forms a 45∘ angle of elevation from the ground. How high is the top o

DochEvi [55]

Answer:

The height of tree house is 70.71 feet

Step-by-step explanation:

We are given that A 100-foot rope from the top of a tree house to the ground forms a 45∘ angle of elevation from the ground

Refer the attached figure

Length of rope AC = Hypotenuse =100 feet

The top of a tree house to the ground forms a 45∘ angle of elevation from the ground = $\angle ACB = 45^{\circ}$

We are supposed to find the height of tree house i.e.AB = Perpendicular

So, Using trigonometric ratio

$Sin \theta = \frac{perpendicular}{Hypotenuse}\\Sin 45= \frac{AB}{AC}\\\frac{1}{\sqrt{2}}=\frac{AB}{100}\\100 \times \frac{1}{\sqrt{2}}=AB\\70.71=AB$

Hence The height of tree house is 70.71 feet

8 0

3 years ago

89x1230x780 A.85386600 B.7 C.2 D,89

erik [133]

Answer:

Step-by-step explanation:

89x1230x780=85386600

3 0

2 years ago

5x − 3y = −11 2x − 6y = −14

Digiron [165]

The answer is 2x-6y=-14 is the aswer

7 0

3 years ago