MATHEMATICS MIDDLE SCHOOL

0.000033 in scientific notation?!

Answers

Answer 1
Answer:

we know that

0.000033=(33)/(1,000,000) =(33)/(1*10^(6)) =33*10^(-6) =3.3*10^(-5)

therefore

the answer is 3.3*10^(-5)
Answer 2
Answer: 3.3 times -10 to the fifth power.

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What times itself equals 7
1/2 ×10 what is the answer

mary has 12 marbles. 3/12 marbles. are yellow and 2/12 of the marbles are blue. The rest of the marbles are green. how many marbles are green??explain how you know.

Answers

This simply means that 3 out of the 12 are yellow and 2 out of 12 are blue. So add the blue and yellow together to get 5, then subtract 5 from 12 and get 7. There is 7 green marbles
3+2=5 12-5=7the answer is 7 are green

Write and expression that is equivalent to 7/8

Answers

4/5,1/5,2/7 those are the answers hoped it helped

A storage tank holds 235,500 in3 of a chemical. The chemical is dispensed to completely fill 25 identical cylindrical containers, each with a radius of 5 in. What is the height of the cylindrical containers? Use 3.14 to approximate pi.

Answers

Divide 235.500 by 25 containers = 9420 in^3 per small container

Volume of a cylinder: Pi*(radio)^2*height = 3.14*(2.5in)^2*height = 9420 in^3

Then height = 9420 in^3/(3.14*6.25in^2) = 480 in.

Answer: 480 in.

Which of the following is the measure of AXYif ray xy bisects AXB,
which measures 110°

Answers

Answer:

The measure of angle AXY is 55°

Step-by-step explanation:

we know that

If ray XY bisects AXB

then

∠AXY=∠YXB=∠AXB/2

therefore

∠AXY=110°/2=55°

see the attached figure to better understand the problem

Which equation has a graph that is a parabola with a vertex at (-1, -1)?ОООО
O y = (x - 1)2 + 1
y = (x - 1)2 - 1
y = (x + 1)2 + 1
· y = (x + 1)2 - 1

Answers

Answer:

y = (x + 1)² - 1

Step-by-step explanation:

The equation of a parabola in vertex form is:

y = a(x - h)² + k

where the vertex is located at (h,k). Replacing with vertex at (-1, -1) we get:

y = a(x - (-1))² + (-1)

y = a(x + 1)² - 1

The only option with vertex at (-1, -1) is y = (x + 1)² - 1 (where a = 1)

Answer:

d

Step-by-step explanation:

What is the solution to the equation? 1 minus z/5=9 Answers: A. z = 50   B. z = 44   C. z = –2   D. z = – 40

Answers

1 - (z)/(5) = 9

add (z)/(5) to both sides.

1 = 9 + (z)/(5)

subtract 9 to both sides.

-8 = (z)/(5) 

multiply 5 to both sides.

-40 = z

Your answer is D) z = -40
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