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Lena [83]
2 years ago
15

Pls help 15 points pls hurry

Mathematics
1 answer:
Alexus [3.1K]2 years ago
3 0

Answer:

5k and -3k are like variables

constants 7 and -2 are like terms

5+2k+n is equivalent expression

Step-by-step explanation:

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A fair die os flipped 6 times. What is the probability of rolling at least one 3? Round the answer to the nearest hundredth of a
Yuliya22 [10]

Answer:

it would be 18

Step-by-step explanation:

5 0
3 years ago
What is Z 2(2z -4)=4
Pachacha [2.7K]

Answer:

z=3

Step-by-step explanation:

2(2z -4)=4

Divide by 2

2/2(2z -4)=4/2

2z-4 = 2

Add 4 to each side

2z-4+4 = 2+4

2z = 6

Divide by 2

2z/2 = 6/2

z=3

6 0
3 years ago
Write an equation in slope-intercept form of the line passing through (0, 3) and (2, -1).
Fynjy0 [20]

Answer:

sim eu também preciso desta respota

3 0
3 years ago
The triangle and the trapezoid have the same area. Base b2 is twice the length of base b1. What are the lenghts of the bases of
Sati [7]

Answer:

<h2>The lengths of the bases of the trapezoid:</h2><h2>42/h cm and 84/h cm.</h2>

Step-by-step explanation:

The formula of an area of a triangle:

A=\dfrac{bh}{2}

<em>b</em><em> </em>- base

<em>h</em> - height

We have <em>b = 21cm, h = 6cm</em>.

Substitute:

A=\dfrac{(21)(6)}{2}=63\ cm^2

The formula of an area of a trapezoid:

A=\dfrac{b_1+b_2}{2}\cdot h

<em>b₁, b₂</em> - bases

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

We have <em>b₁ = 2b₂</em>, therefore <em>b₁ + b₂ = 2b₂ + b₂ = 3b₂</em>.

The area of a triangle and the area of a trapezoid are the same.

Therefore

\dfrac{3b_2}{2}\cdot h=63         <em>multiply both sides by 2</em>

3b_2h=126          <em>divide both sides by 3</em>

b_2h=42         <em>divide both sides by h</em>

b_2=\dfrac{42}{h}

b_1=2b_2\to b_1=2\cdot\dfrac{42}{h}=\dfrac{84}{h}

8 0
2 years ago
Read 2 more answers
Which one is right..
frez [133]

Answer:

the answer would be C

Step-by-step explanation:

8 0
3 years ago
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