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3 years ago

11

B) What is litmus? How is it prepared?

1 answer:

Citrus2011 [14]3 years ago

5 0

Answer:

purple dye

Step-by-step explanation:

extracted from a plant ,"Lichen", cellulose.

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rjkz [21]

Nicki minaj is a quebeebbenenene

7 0

3 years ago

A triangle contains angles mesuring 28 degrees and 37 degrees. How many degrees is the third angle?

Orlov [11]

Answer:

115°

Step-by-step explanation:

<u>We know that:</u>

Angles ∠A and ∠B are 28° and 37°.

<u>We don't know:</u>

Angle ∠C's angle

<u>So, we do this:</u>

Add the 180°
Solve the equation 180 - 28 - 37

<u>Solve:</u>

180 - 28
= 152 - 37
= 115.

Angle ∠C is 115°.

8 0

2 years ago

The length of a rectangle is 5 m less than twice the width, and the area of the rectangle is 52 m^2. Find the dimensions of the

lys-0071 [83]

length is 8m

Width is 6.5m

<u>Explanation:</u>

Let, width = b

So, length = 2b-5

area = 52 $m^{2}$

We know,

area of rectangle = length X width

So, $52m^{2}$ = $(2b-5) X b$

On solving the above equation, we get

Width, b = 6.5m

length, l = 8m

4 0

2 years ago

Sam raked 3 bags of leaves in 16 minutes. If he continues to work at the same rate, about how long will it take him to rake 5 ba

kicyunya [14]

Answer:

26 minutes and 40 seconds

Step-by-step explanation:

5 0

3 years ago

Factor f(x)=x2−8x+16<br><br> (A) (x−4)2<br> (B) (x+8)2<br> (C) (x−8)2<br> (D) (x+4)2

Fynjy0 [20]

Answer:

A

Step-by-step explanation:

(x-4)^2 = x^2 -4x -4x + (-4)*(-4)

= x^2-8x+16 as required

3 0

2 years ago