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3 years ago

What is the value of X^2-4y/2 if x=4 and y=-3

Mathematics

1 answer:

Dominik [7]3 years ago

3 0

To solve this, we just need to plug in the numbers.

4^2-4*3/2

Now solve!

4^2-4*3/2

16-4*9

16-36

-20

There's your answer!

Any questions?

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3 b. A taxi hurries 261 km in 135 minutes. What is its average speed in kilometers per hour?

otez555 [7]

Speed=d/t
Ans-1.93
Correct me if I’m wrong

3 0

3 years ago

413 divided by 14 <br> How do you it?

guajiro [1.7K]

You can either do this on the calculator, or in your head. As its a larger number, it is worth doing it on the calculator.
413/14= 29.5
The alternative method is to list all of the tens multiples, and the smaller multiples when you're getting close to the answer, and this will be able to help you.
14x10= 140
14x20=280
14x30= 420 (which is slightly too big)
14x29= 406 (slightly too small)
14x29.5= 413

Hope this helps :)

5 0

3 years ago

Read 2 more answers

Find the lengths of all segments in the diagram.<br> AB =<br> BC =<br> BD =<br> AC =

Dmitrij [34]

Answer:

Since we know that AD =12

AC=1/2*AD

AC=6

AB=BC=1/2*AC

AB=BC=3

hope you like the answer

please Mark as brainlist

4 0

3 years ago

What is equivalent to 2b+4

Digiron [165]

The equivalent expression of 2b + 4 is 2(b + 2) .

<h3>What is an equivalent expression?</h3>

Equivalent expressions are expressions that work the same even though

they look different.

In other words, two expressions are said to be equivalent if they have the

same value irrespective of the value of the variable(s) in them.

If two algebraic expressions are equivalent, then the two expressions

have the same value when we plug in the same value for the variable.

Therefore, let's find the equivalent expression of 2b + 4.

Hence, using common factor,

2b + 4 = 2(b + 2)

Therefore, the equivalent of 2b + 4 is 2(b + 2)

learn more on equivalent expression here:brainly.com/question/12577283

#SPJ1

3 0

10 months ago

A right rectangular prism has these dimensions:

DochEvi [55]

Hey there :)

The volume formula of a rectangular prism is
V = height x length x width

Given are:
Length = $1\frac{1}{2} = \frac{3}{2}$
Width = $\frac{1}{2}$
Height = $\frac{3}{4}$

Lets find the volume:
V = $\frac{3}{2}$ x $\frac{1}{2}$ x $\frac{3}{4}$
= $\frac{9}{16}$ units³

The volume formula of a cube is
V = side³

Given is:
Side = $( \frac{1}{4} )^3$
= $\frac{1}{64}$ units³

To find how many cubes fit in the rectangular prism, we divide the volumes
Volume of prism divided by volume of cube
$\frac{9}{16}$ ÷ $\frac{1}{64}$
Since it is a fraction that is involved in division, we find the reciprocal and multiply

= $\frac{9}{16}$ x 64
= 36

Your answer will be the 1st option

3 0

3 years ago