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tatuchka [14]
3 years ago
15

What is the missing reasons in the proof?

Mathematics
2 answers:
serious [3.7K]3 years ago
8 0

answer:

substituion property or transitive property

step-by-step explanation:

  • we already knew that <ABC was 90 degrees, therefore all we had to do was substitute, therefore transitive property
djverab [1.8K]3 years ago
5 0
Substitution the problem
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The radius of a circle is 4.53 inches what is the length of the circumference of the circle ?
gtnhenbr [62]

Answer:

28.46in

Step-by-step explanation:

C=2πr

C=2π*4.53

C≈28.46in

8 0
2 years ago
What are the dimensions of a rectangular box with a volume of 50b 3 + 75b2 - 2b - 3?
Inessa [10]

Answer:

\large\boxed{(2b+3)\times(5b-1)\times(5b+1)}

Step-by-step explanation:

The formula of a volume of a rectangular box:

V=lwh

<em>l</em><em> - lenght</em>

<em>w</em><em> - width</em>

<em>h</em><em> - height</em>

V=50b^3+75b^2-2b-3=25b^2(2b+3)-1(2b+3)\\\\=(2b+3)(25b^2-1)=(2b+3)(5^2b^2-1^2)\\\\=(2b+3)\bigg((5b)^2-1^2\bigg)\qquad\text{use}\ a^2-b^2=(a-b)(a+b)\\\\=(2b+3)(5b-1)(5b+1)

Therefore the dinemsions of thisp prism are:

(2b+3)\times(5b-1)\times(5b+1)

5 0
2 years ago
Read 2 more answers
Which of the following is the actual length of a window that is 1 1/4 inches long on a drawing with a scale of 1 inch =6 feet
DENIUS [597]
1.25/20=1x
1.25x=20
x=20/1.25=16
1 inch=16 feet
5 0
3 years ago
3x + 6y = 14<br>2x + 8y = 2​
solmaris [256]

Step-by-step explanation:

x=14-6y/3

substituting x=14-6y/3 into eqn 2

2(14-6y/3)+8y=2

multiplying through by 3

2(14-6y/3)×3 +8y×3=2×3

2(14-6y)+24y=6

28-12y+24y=6

28-12y=6

28-6=12y

22=12y

22/12=y

finding x

2x+8(22/12)=2

2x+44/3=2

2x=2-44/3

x=(-38/3)/2

×=-38/6

7 0
2 years ago
Which of the following is a solution of x2 + 4x = −8?
Vladimir [108]
x^{2}+4x = -8&#10;\\\\&#10;x^{2}+4x+8 = 0&#10;\\\\&#10;\Delta = b^{2}-4ac&#10;\\\\&#10;\Delta = (4)^{2}-4 \cdot (1) \cdot (8)&#10;\\\\&#10;\Delta = 16-32&#10;\\\\&#10;\Delta = -16

There's no solution in the set of real numbers.

\boxed{S = \{ \ \ \}}
6 0
3 years ago
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