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VLD [36.1K]
3 years ago
9

Can someone please explain this

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

can you also hep me on something

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a test has 20 multiple-choice questions with 5 choices each, followed by 35 true/false questions. if a student guesses on each q
Nuetrik [128]

Answer

There are 170 ways the student can answer the test.

Explanation

If there are 20 multiple-choice questions with 5 choices each, the student has 100 choices. The first question has 5 choices to pick from. The second has 5 as well. So does the third. Hopefully now you realize that you have to multiply the number of choices by the number of questions.

The same thing goes with the true/false questions. There are 2 choices for each true/false question, and there are 35 of those. 35×2 is 70. There are 70 ways to answer on the true/false questions.

Now combine the number of choices on the first part and the second part; 100+70 is 170.

3 0
3 years ago
If the square root of x is greater than x then x could be
Shtirlitz [24]
Any decimal under 1, i believe.
8 0
3 years ago
Huey has a fish tank that measures 5 feet long by 2 feet wide and 2 feet tall . The volume of the tank.
iris [78.8K]
This is a simple problem

First, take common sense and apply it here. The problem doesn't specifically tell you what the shape ACTUALLY is, but we can also apply what we know about geometry here, as well as what we know in general. Fish tanks most commonly come in 2 shapes: Square's and Rectangles. Fish tanks are what we call "3D" objects (meaning it's just not flat like a piece of paper", and the shapes are known as "Cubes and Rectangular Prisms".

Well, we know that squares/cubes have to have even sides. The problem states the tank is 5(l) by 2(w) by 2(h). This means it CAN'T be a cube, thus meaning it's a rectangular prism.

Now, to calculate volume, we have to know the formula. For this, the formula for volume is as follows: V=lwh
This means Volume=Length*Width*Height

So, do replace the words with what you know you already have. Let's make a list:
Length=5
Width=2
Height=2

V=lwh-----V=5*2*2

Now, work it out. 5*2=10*2=20, Left to right

Your answer here is V=20

~Hope this helps!
3 0
2 years ago
PLEASE HELP IT’S DUE TMR!!
iragen [17]

4856

1.07

12.9

7.00

0.00199 (199)

0.000660 (660)

:)

3 0
2 years ago
A cube has a volume of 729 cubic centimeters. What can be concluded about the cube? Check all that apply.
Alona [7]

Answer:

This is a perfect cube.

The side length is 9 centimeters.

Taking the cube root of the volume will determine the side length

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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