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3 years ago

Please help for 50 points...

Mathematics

2 answers:

vaieri [72.5K]3 years ago

4 0

Answer:

7. ○ ∆ACB ≅ ∆DFE

6. ○ $\displaystyle 43°$

5. ○ $\displaystyle ∠M ≅ ∠S$

4. ○ $\displaystyle octagon$

3. ○ $\displaystyle squares$

2. ○ $\displaystyle rhombus$

1. ○ $\displaystyle equilateral\:triangle$

Step-by-step explanation:

7. Everything is in correspondence with each other, so just follow the pattern in the order the they were originally.

6. All angles correspond with each other, so just follow the pattern.

5. All segments and angles correspond with each other, so just follow their patterns.

4. An octagon has eight sides, a triangle has three sides, a hexagon has six sides, and a pentagon has five sides. With this being stated, you have your answer.

3. In a previous lesson, we confirmed that all squares are rectangles because it is a quadrilateral with four right angles.

2. This is obviously a rhombus because it is a quadrilateral with four congruent angles and sides.

1. An EQUILATERAL TRIANGLE is a regular polygon because they have three congruent angles and sides.

I am joyous to assist you anytime.

ra1l [238]3 years ago

4 0

Answer:

2. Rhombus

3. Squares

4. Octagon

Step-by-step explanation:

2. A rhombus can have all equal sides because it is like a square.

3. The definition of a square is a rectangle with all the sides and angles congruent.

4. An octagon has 8 sides and the rest of them are less than 8.

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Emily and Kylie are 140 miles apart, traveling towards each other. If Kylie travels 12 mph and Emily travels 8 mph how long unti

Bogdan [553]

Answer: 7 hr

Step-by-step explanation:

Given

Distance between Emily and Kylie is $140\ \text{miles}$

Speed of Emily $v_e=12\ mph$

Speed of Kylie $v_k=8\ mph$

Distance traveled by Emily $\Rightarrow d_e=12t$

Distance traveled by Kylie $\Rightarrow d_k=8t$

$\Rightarrow 12t+8t=140\\\Rightarrow 20t=140\\\Rightarrow t=7\ hr$

They will meet after 7 hour.

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3 years ago

You have 30 sandwich and 42 granola bars basket what is the greatest number of picnic basket you can make

Gwar [14]

Answer:

The greatest ammount of picnic baskets you could make is 30 with an extra 12 granola bars left over, but it depends on how many people are going to eat from one picnic pasket. For example..say there were two people sharing each basket, you would make 15 picnic baskets with 12 leftover. The number would be 15 baskets because each person sharing the picnic basket together would each get 1 sandwich and 1 granola bar.

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3 years ago

Pls help meeeeeeee pls pls pls

Rom4ik [11]

Answer:

D. $\frac{4x^{2} \sqrt{29}}{29}$

Step-by-step explanation:

Given the expression:

$\frac{40x^{2} \sqrt{x^{12} } }{10x^{2} \sqrt{29x^{8} } }$

divide by the common factor to have;

$\frac{4\sqrt{x^{12} } }{\sqrt{29x^{8} } }$ = $\frac{4(x^{12}) ^{\frac{1}{2} } }{(29x^{8}) ^{\frac{1}{2} } }$

= $\frac{4x^{6} }{\sqrt{29}x^{4} }$

= $\frac{4x^{2} }{\sqrt{29} }$

Rationalize the denominator, we have;

$\frac{4x^{2} }{\sqrt{29} }$ x $\frac{\sqrt{29} }{\sqrt{29} }$

So that,

$\frac{4x^{2} \sqrt{29} }{29}$

Thus,

$\frac{40x^{2} \sqrt{x^{12} } }{10x^{2} \sqrt{29x^{8} } }$ = $\frac{4x^{2} \sqrt{29} }{29}$

The correct option is D.

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3 years ago

the cylander is 88 cubic inches. a smaller container similar in shape has a scale factor of 1/2 what is the volume of the smalle

Inga [223]

scale = 1 : 2

88 : 2 = 44 inches³

3 0

3 years ago

Write out the form of the partial fraction decomposition of the function (See Example). Do not determine the numerical values of

ladessa [460]

I have a solution here for the same problem but a different given:

(2x-82)/(x^2+2x-48) dx

In which this solution will help you answer the problem by yourself:

(2x - 82) /(x² + 2x - 48)

first, factor the denominator completely: 

(x² + 2x - 48) = 

(x² + 8x - 6x - 48) = 

x(x + 8) - 6(x + 8) = 

(x - 6)(x + 8) 

so the function becomes: 

(2x - 82) /[(x - 6)(x + 8)] 

let's decompose this into partial fractions: 

(2x - 82) /[(x - 6)(x + 8)] = A/(x - 6) + B/(x + 8) 

(letting [(x - 6)(x + 8)] be the common denominator at the right side too) 

(2x - 82) /[(x - 6)(x + 8)] = [A(x + 8) + B(x - 6)] /[(x - 6)(x + 8)] 

(equating numerators) 

2x - 82 = Ax + 8A + Bx - 6B 

2x - 82 = (A + B)x + (8A - 6B) 

yielding the system: 

A + B = 2 
8A - 6B = - 82 

A = 2 - B 
4A - 3B = - 41 

A = 2 - B 
4(2 - B) - 3B = - 41 

A = 2 - B 
8 - 4B - 3B = - 41 

A = 2 - B 
- 7B = - 41 - 8 

A = 2 - B 
7B = 49 

A = 2 - 7 = - 5 
B = 49/7 = 7 

hence: 

(2x - 82) /[(x - 6)(x + 8)] = A/(x - 6) + B/(x + 8) = - 5/(x - 6) + 7/(x + 8) 

thus the answer is: 

(2x - 82) /(x² + 2x - 48) = [- 5 /(x - 6)] + [7 /(x + 8)]

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3 years ago