3 years ago

1.Bart's grandfather gave him a collection of 780 old books. Bart purchases 20 books every

Mathematics

1 answer:

Tatiana [17]3 years ago

3 0

The answerrrr is 84 I think

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If a heptagon has an area of 105 in2, what is the measure of one side ?

kumpel [21]

Answer:

5.38 inches

Step-by-step explanation:

The formula for Area of an Heptagon

= A=7/4a²cot(180°/7)

Area = 105in²

Side a = ?

The formula for Side a

= √4A ×tan (180°/7)/7

= √4 × 105 × tan (180°/7) /7

= 5.37536 inches

Approximately = 5.38 inches.

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Whoever helps with number 5 gets brainliest answer and 10 points :)

nata0808 [166]

Count:5Sum:341Mean:68.2Median:62Mode:48, 40, 93, 62, 98

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Someone help me please !!!

KIM [24]

Answer:

1. 10

2. 12

3. Sqrt 130

4. Sqrt 45

Step-by-step explanation:

To find the missing side of a right triangle, use the Pythagorean Theorem. The Pythagorean Theorem is $a^2+b^2=c^2$ where a and b are the legs with a being the smallest and c is the hypotenuse.

1. a=6, b=8, c=?

$6^2+8^2=c^2\\36+64=c^2\\100=c^2\\10=c$

2. a=5, b=?, c=13

$5^2+b^2=13^2\\25+b^2=169\\169-25=b^2\\144=b^2\\12=b$

3. a=7, b=9, c=?

$7^2+9^2=c^2\\49+81=c^2\\130=c^2\\\sqrt{130}=c$

4. a=2, b=?, c=7

$2^2+b^2=7^2\\4+b^2=49\\49-4=b^2\\45=b^2\\\sqrt{45}=b$

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3 years ago

Which statements are true about the interquartile range? Select all that apply.

kap26 [50]

Is there a picture? there's not enough info

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Alec mixes a juice solution that is made from 3 gallons of an 80% juice solution and 1 gallon of a 20% juice solution. What is t

solniwko [45]

Answer:

i tink 88 percent

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3 years ago