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3 years ago

Amy says that the 9 in the number 900.876 is 1/1,000 the size of the 9 in 6.91. Is she correct? How do you know?

Mathematics

2 answers:

Oksi-84 [34.3K]3 years ago

8 0

Answer:

Step-by-step explanation:

The 9 in 900.876 is 900 and the 9 in 6.91 is .9 and if you look at the place value, you'll see that 900 is larger than .9

Phoenix [80]3 years ago

4 0

Answer: The 9 in 900.876 is 900 and the 9 in 6.91 is .9 and if you look at the place value, you'll see that 900 is larger than 9. so no

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Write an equation of the line that passes through (-5, -2) and is parallel to y=2/3x+1 y=?

Nutka1998 [239]

Answer:

Step-by-step explanation:

The point-slope form of the equation of line: y - y₁ = m(x - x₁), where m is the slope and (x₁, y₁) is the point the line passing through.

y=m₁x+b₁ ║ y=m₂x+b₂ ⇔ m₁ = m₂

{Two lines are parallel if their slopes are equal}

y = 2/3x + 1 ⇒ m₁ = 2/3 ⇒ m₂ = 2/3

(-5, -2) ⇒ x₁ = -5, y₁ = -2

point-slope form:

y - (-2) = 2/3(x - (-5))

y + 2 = 2/3(x + 5)

y + 2 = 2/3x + 10/3 {subtact 2 from both sides}

y = 2/3x + 4/3 ← slope-intercept form

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3 years ago

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It costs 95 dollars for 20 students to visit and equarium.how much does it cost for 162 students?

larisa86 [58]

Answer:

769.50

Step-by-step explanation:

95 ÷ 20 = 4.75

So, 4.75 is the cost per student

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3 years ago

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Which property is illustrated by the statement (2+3.4)+6=2+(3.4+6)

aleksandrvk [35]

Answer:

Associative property is illustrated.

Step-by-step explanation:

we have been given:

(2+3.4)+6=2+(3.4+6)

This is the associative identity which is:

a+(b+c)=(a+b)+c

Here, we have a=2, b=3.4, c=6

On comparing the values with associative property we get:

(2+3.4)+6=2+(3.4+6)

We club two numbers b and c first and then a and b in same bracket.

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The correct answer is B

Step-by-step explanation:

View attachments.

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3 years ago

Find the length of the third side. If necessary, write in simplest radical form.

Mazyrski [523]

Answer:

$\boxed {\boxed {\sf 8}}$

Step-by-step explanation:

This triangle has a small square, which represents a right angle. Therefore, we can use the Pythagorean Theorem.

$a^2+b^2=c^2$

Where a and b are the legs of the triangle and c is the hypotenuse.

In this triangle, 7 and √15 are the legs, because these sides make up the right angle. The unknown side is the hypotenuse, because it is opposite the right angle. So, we know two values:

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$(7)^2+(\sqrt{15})^2=c^2$

Solve the exponents.

(7)²= 7*7=49

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Add.

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Since we are solving for c, we must isolate the variable. It is being squared and the inverse of a square is the square root. Take the square root of both sides.

$\sqrt{64}=\sqrt{c^2} \\\sqrt{64}= c\\8=c$

The third side length is 8.

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