3 years ago

4. Which of the following is not true of saliva?

Mathematics

1 answer:

erik [133]3 years ago

7 0

Answer: c

Step-by-step explanation:

ok so it doesn't contain moisten in food

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Use the formula for the area of a circle to solve for the radius of the circle if the area is 78.5cm^2

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Answer:

Area = PI * radius^2

radius = Sq Root (Area / PI)

radius = Sq Root (78.5 / PI)

radius = Sq Root (24.9873260654)

radius = 4.9987

radius = 5 (rounded)

Step-by-step explanation:

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3 years ago

Find the missing length.<br> 10<br> 4<br> с<br> C=<br> ✓ [?]<br> Pythagorean Theorem: a2 + b2 = c2

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Answer:

a2 (10x10) + b2 (4x4) = c2 (100+16)

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Can someone help me with this problem

Alex_Xolod [135]

Answer:

Step-by-step explanation:

The formula of a distance between two points:

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

A(-3, 0) , B(3, 2)

$AB=\sqrt{(3-(-3))^2+(2-0)^2}=\sqrt{6^2+2^2}=\sqrt{36+4}=\sqrt{40}=\sqrt{4\cdot10}=\sqrt4\cdot\sqrt{10}=2\sqrt{10}$

A(-3, 0), D(-2, -3)

$AD=\sqrt{(-2-(-3))^2+(-3-0)^2}=\sqrt{1^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}$

AB = CD and AD = BC

The area of a rectangle:

$A=(AB)(AD)$

Substitute:

$A=(2\sqrt{10})(\sqrt{10})=(2)(10)=20$

The perimeter of a rectangle:

$P=2(AB+AD)$

Substitute:

$P=2(2\sqrt{10}+\sqrt{10})=2(3\sqrt{10})=6\sqrt{10}$

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3 years ago

A university's freshman class has 10000 students. 2500 of those students are majoring in Engineering. What percentage of the fre

Musya8 [376]

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25%

Step-by-step explanation:

2500*4 = 10000

10000/4 = 2500

its 1/4 of the students

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Answer:

Here are the answers:

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2.0

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