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Verdich [7]
2 years ago
10

Need help asap in delta math assignment

Mathematics
2 answers:
V125BC [204]2 years ago
8 0

Answer:

8

Step-by-step explanation:

B^2 = C^2 -A^2 89-25 = 64 sqrt(64) is 8

Ivan2 years ago
5 0

Answer:

8

Step-by-step explanation:

use Pythagoras rule

{a}^{2}  + {b}^{2} =  {c}^{2}

{5}^{2}  +  {x}^{2}  =  { \sqrt{89} }^{2}

so x = 8

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Question 1 (1 point)
olga55 [171]

Answer:

1) 2y^{2}+4y-9

2) 18x^{5}y^{4}z

3) 6x^{5}-12x^{4}+9x^{3}

4) 40

5) x^{3}-7x^{2}+3x+36


Step-by-step explanation:

1) Distribute the negative sign that is outside the parentheses and then you must add like terms, as following:

(y^{2}-3y-5)-(-y^{2}-7y+4)=y^{2}-3y-5+y^{2}+7y-4=2y^{2}+4y-9

2) According to the Product property of exponents, when you multiply powers with the same base, you must add the exponents. Then:

(6xy^{3}z)(3x^{2}yx^{2})=18x^{5}y^{4}z

3) Apply the Distributive property and the Product property of exponents. Then, you obtain:

-3x^{3}(-2x^{2}+4x-3)=6x^{5}-12x^{4}+9x^{3}

4) (4a+5)^{2} is a square of a sum, then, by definition you have:

(a+b)^{2}=a^{2}+2ab+b^{2}

Then:

(4a+5)^{2}=(4a)^{2}+2(4a)(5)+5^{2}=16a^{2}+40a+25

The coefficient of the second term is the number in front of the variable <em>a.</em> Then, the answer is: 40

5)  Apply the Distributive property and the Product property of exponents, then, oyou must add the like terms:

(x-4)(x^{2}-3x-9)=x^{3}-3x^{2}-9x-4x^{2}+12x+36=x^{3}-7x^{2}+3x+36

6 0
3 years ago
A square canvas has an area of 49 square inches. What is the perimeter of the canvas?
a_sh-v [17]

Answer:

Step-by-step explanation:

Area = side*side

side * side = 49

side * side = 7*7

side = 7 inches

Perimeter = 4*side

=4 * 7

= 28 inches

4 0
3 years ago
Read 2 more answers
The frequency table shows the results of drawing 20 cards from a bag of 100. There are an
zepelin [54]

Answer:

It's 50 percent right

Step-by-step explanation:

there are many colors and they could all be different

4 0
3 years ago
Options:<br> 14<br> 36<br> 16<br> 12
Lerok [7]

Answer:


12 million dollars.


Step-by-step explanation:


Let the sales in the first year be x million .

So the sales in the second year were x + 4 million, in the third year were 3(x + 4) and this is 48 million dollars.

So we have the equation 3(x + 4) = 48

3x + 12 = 48

3x = 36

x = 12 million dollars.

8 0
3 years ago
Find an explicit rule for each geometric sequence using subscript notation. Use a calculator and round your answer to the neares
BigorU [14]

Answer:

Hence the explicit rule is a(n) 1184.625.

7 0
2 years ago
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