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3 years ago

How do you know wether to add or subtract when you use the distributive property to multiply

1 answer:

6 0

The distributive properties of addition and subtraction can be used to rewrite expressions for a variety of purposes. When you are multiplying a number by a sum,you can add and then multiply. You can also multiply each addend first and then addthe products.

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Find the area of the shaded region. Use 3.14 for pi. Do not round. Use a calculator. Number 20 and 21. Ty.

sertanlavr [38]

20. square-10+10=20x2=400m^2
circle- 3.14x10^2=3.14x100=314
400-314=86
86m^2

21.i don't get 21 sorry

7 0

3 years ago

If tan A = 4/5; what does CSC A =? Round to nearest tenth.

ZanzabumX [31]

Answer:

1.6

Step-by-step explanation:

$\tan \: A = \frac{4}{5} \\ \\ \cot \: A = \frac{1}{ \tan \: A } = \frac{1}{ \frac{4}{5} } = \frac{5}{4} \\ \\ csc\: A = \sqrt{1 + {cot}^{2}\: A} \\ = \sqrt{1 + { \bigg( \frac{5}{4} \bigg)}^{2} } \\ = \sqrt{1 + \frac{25}{16} } \\ = \sqrt{\frac{16 + 25}{16} } \\ = \sqrt{\frac{41}{16}} \\ = \frac{ \sqrt{41} }{4} \\ = \frac{6.40312424}{4} \\ = 1.60078106 \\ \therefore \: csc \: A =1.6$

6 0

3 years ago

A rectangle has an area of 226.1 square miles and a base of 13.3 miles. What is the height?

miskamm [114]

Answer:

The width (in our case it is the height) of the rectangle equals 17 miles

Step-by-step explanation:

In order to solve this, we need to know the following...

Area of a rectangle = Length x Width

(in our case based on what you said length is the base and width is the height)

Now we just change the formula to our needs and get that...

Width = Area of the rectangle / Length

And so we get...

Width = Area of the rectangle / Length

Width = 226.1 / 13.3

Width = 17 miles

3 0

3 years ago

??????????????????????????

Umnica [9.8K]

Solution:

Simple Interest = Principal Amount × Rate of Interest/100 × Time

Here, Principal Amount = $6000

Rate of Interest = 6%

Time = 4 years

Simple Interest = 6000 × 6/100 × 4 = $1440

3 0

3 years ago

Find the values using expansion formula 1) 1.5×2.5

PolarNik [594]

Answer:

$3.75$

Step-by-step explanation:

$1.5 \times2. 5 \\ = 3.75$

Please can I have the brainliest?

Have a nice day!

3 0

3 years ago