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Svet_ta [14]
3 years ago
13

-1/17*5/16+5/16*3/20 use distributive property

Mathematics
1 answer:
ehidna [41]3 years ago
3 0

Answer:

Step-by-step explanation:

-7

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(x + 3)^2 - 4x^2<br><br> Factorise using the difference of two squares
AlladinOne [14]

Answer:

3(x + 1)(3 - x).

Step-by-step explanation:

(x + 3)^2 - 4x^2

Using the identity a^2 - b^2 = (a - b)(a + b), we have

(x + 3 - 2x)(x + 3 + 2x)

= (-x + 3)(3x + 3)

= 3(x + 1)(3 - x)

8 0
3 years ago
18) At noon, what is the length of the shadow cast by a flagpole known to be 20 feet tall? Label the answer correctly.
strojnjashka [21]

   Actual length of the pole and the length of the shadow cast by the pole follow the proportional relationship.

Following this rule, 20 feet tall flagpole will cast 3.33 feet shadow.

  If the length of the shadow = x feet

Proportional relationship will be defined by the expression,

\frac{\text{Actual height}}{\text{Length of the shadow}}\rightarrow \frac{6}{1}= \frac{20}{x}

6x=20

x=\frac{20}{6}

x=3.33 feet

   Therefore, length of the shadow cast by flagpole will be 3.33 feet.

Learn more,

brainly.com/question/23262569

8 0
2 years ago
Helpppp plzzz...plz give steps
uysha [10]

Answer:

Volume of hemisphere =

\frac{2}{3} \pi \: r {}^{3}

Given volume =

18\pi \: cube

\frac{2}{3}   \times \frac{22}{7}  \:  {r}^{3}  = 18 \times  \frac{22}{7}

So pi is there on both the sides so it will be cut from both LHS and RHS

\frac{2}{3}  \times r  {}^{3}  = 18

2 \times r {}^{3 }  = 18 \times 3

2 \times r {}^{3}  = 54

r {}^{3}  =  \frac{54}{2}

r {}^{3}  = 27

r = 3

Therefore value of r=3 inches

If you are helped with my answer pls tag me brianliest I really want it... Plzz

THANK YOU

3 0
3 years ago
Read 2 more answers
Can somebody help me? please
igomit [66]
The answer is A. 2.3^5
7 0
3 years ago
Read 2 more answers
Can someone solve this problem for me
Aleks [24]

Answer:

(C) 90 in^{2}

Step-by-step explanation:

The figure is a combination of two parallelograms. So, to find the area of the whole figure, all you have to do is find the area of each parallelogram separately (they happen to be the same in this problem) and then add them up. The formula for the area of a parallelogram is <u>A = base*height</u>. In each parallelogram, the base is 15 in., and the height is 3 in. Therefore, the area of each parallelogram is 45 in^{2} and the area of the whole figure is 90 in^{2}.

Hope this helps :)

3 0
2 years ago
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