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DaniilM [7]
2 years ago
6

Need help with 3&4 pls

Mathematics
1 answer:
expeople1 [14]2 years ago
7 0
3a- 10° 3b- 55°
4a- 135° 4b- 45°

Complementary angles add up to 90°
Supplementary angles add up to 180°
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15 points! What is the scale factor of the dilation?
maw [93]

Answer: \frac{1}{2}

Step-by-step explanation:

Use the formula for calculate the distance between two points:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Calculate the distance AB. Substitute the coordinates into the formula. Then:

d_{AB}=\sqrt{(8-0)^2+(8-(-7))^2}

d_{AB}=17

Calculate the distance A'B'. Substitute the coordinates into the formula. Then:

d_{A'B'}=\sqrt{(2-6)^2+(1-5-(-6))^2}

d_{A'B'}=\frac{17}{2}

As you can see, the distance A'B' is the distance AB multiplied by 1/2. Therefore, this is the scale factor.

5 0
3 years ago
The number line between 0 and 1 is partitioned into 6 equal pieces.What fraction of the whole is each piece?
Leno4ka [110]

A fraction is a way to describe a part of a whole. The fraction of the whole is each piece is 1/6.

<h3>What is a Fraction?</h3>

A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.

The number line between 0 and 1 is partitioned into 6 equal pieces. Therefore, a single unit will exist between 0 and 1, which will be divided into six equal parts. Therefore, each fraction will be 1/6 of the unit.

Hence, the fraction of the whole is each piece is 1/6.

Learn more about Fraction:

brainly.com/question/1301963

#SPJ1

4 0
2 years ago
-1/4a - 4 = 7/4a -3
adell [148]

Answer:

a=-1/2 step by step solution is attached to this solution

7 0
3 years ago
Lainey bought a set of 20 markers for $6. What is the cost for 1 marker ?
Arlecino [84]

you would do ...

20 ÷ 6

= $3.33

3 0
3 years ago
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Calculate the velocity of a body of mass 100g having kinetic energy of 100J.
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The velocity of a body is 22.3607 m/s^2
8 0
2 years ago
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