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3 years ago

For people in 7th grade struggling with Circle (Radius - Diameter - Circumference)

Mathematics

2 answers:

vladimir1956 [14]3 years ago

4 0

Answer:

This is super nice!

I'm not a lot of people appreciate this :)

Step-by-step explanation:

Tpy6a [65]3 years ago

3 0

Answer:

ah, the good ol days when math was easy.

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Rex, Paulo, and Ben are standing on shore watching for dolphins. Paulo sees one surface directly in front of him about a hundred

Ksivusya [100]

1. $m\angle BAC=m\angle CAD,\ m\angle ACB=m\angle ADC=90^{\circ}$ , then $m\angle ABC=m\angle ACD$ and triangles ADC and ACB are similar by AAA theorem.

2. The ratio of the corresponding sides of similar triangles is constant, so

$\dfrac{AC}{AB}= \dfrac{AD}{AC}$ .

3. Knowing lengths you could state that $\dfrac{b}{c}= \dfrac{e}{b}$ .

4. This ratio is equivalent to $b^2=ce$ .

5. $m\angle ABC=m\angle CBD,\ m\angle ACB=m\angle CDB=90^{\circ}$ , then $m\angle BAC=m\angle BCD$ and triangles BDC and BCA are similar by AAA theorem.

6. The ratio of the corresponding sides of similar triangles is constant, so

$\dfrac{BC}{BD}= \dfrac{AB}{BC}$ .

7. Knowing lengths you could state that $\dfrac{a}{d}= \dfrac{c}{a}$ .

8. This ratio is equivalent to $a^2=cd$ .

9. Now add results of parts 4 and 8:

$b^2+a^2=ce+cd$ .

10. c is common factor, then:

$b^2+a^2=c(e+d)$ .

11. Since $e+d=c$ you have $a^2+b^2=c\cdot c=c^2$ .

7 0

3 years ago

Read 2 more answers

32% of 1600 = 512

yaroslaw [1]

Answer:

64%: 1024
96%: 1536
132%: 2112
232%: 3712

Step-by-step explanation:

64% of 1600

64% of 1600 = 2 × (32% of 1600) = 2×512

64% of 1600 = 1024

96% of 1600

96% of 1600 = 3 × (32% of 1600) = 3×512

96% of 1600 = 1536

132% of 1600

132% of 1600 = (100% of 1600) + (32% of 1600) = 1600 + 512

132% of 1600 = 2112

232% of 1600

232% of 1600 = (100% of 1600) + (132% of 1600) = 1600 +2112

232% of 1600 = 3712

3 0

3 years ago

Read 2 more answers

Do you think it was moral for European nations to claim lands in the Americas that were already inhabited by natives? Why or why

TEA [102]

Answer:

It was immoral for European nations to claim land in the Americas that were already inhabited by natives. This is because some people were displaced and used as slaves.

Step-by-step explanation:

Cartography is defined as the science and art of making maps or graphical representations showing spatial concepts at various scales. Maps convey geographic information about a place and can be useful in understanding topography, weather, and culture, depending upon the type of map.

7 0

3 years ago

A certain drug dosage calls for 8 mg per kg per day and is divided into two doses (1 every 12 hours). If a person weighs 82 poun

frez [133]

Step-by-step explanation:

Dosage per kg per day = 8mg

2 doses = 4mg

If a person weighs 82 pounds =? mg

1kg = 2.205 pounds

So 82 ÷ 2.205 = 37. 195 kg

So he should receive 37. 195 mg every 12 hours

3 0

3 years ago

The perimeter of a field is 120 yards. what is the length and width?

ElenaW [278]

120/4=30. Remember its widthxlength. if you forget ask your teacher or look online for more help. Good luck.

7 0

4 years ago