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3 years ago

I need help on this hw

Mathematics

1 answer:

Vinil7 [7]3 years ago

7 0

Its 21 because 9+10= 21

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Evaluate the given expression if x = 25, y = 10, w = 11, and z = 18. (see the image)

hammer [34]

Answer:

Step-by-step explanation:

So we have the expression:

$(x-y)^2+10wz$

And we want to evaluate it when x=25, y=10, w=11, and z=18.

So, substitute these values for the variables:

$=(25-10)^2+10(11)(18)$

First, subtract within the parentheses:

$=(15)^2+10(11)(18)$

Square 15:

$=225+10(11)(18)$

Now, multiply the terms on the right. 10 times 11 is 110:

$=225+110(18)$

Multiply:

$=225+1980$

Finally, add:

$=2205$

So, our answer is D.

And we're done!

8 0

3 years ago

Read 2 more answers

What is 4.0 x 10 by the 2nd power

bixtya [17]

The answer is 400
Have a wonderful day

5 0

2 years ago

4^2-6(2^x)-16=0 solve for x

ahrayia [7]

Assuming that 4^2-6(2^x)-16=0 is correct, we can rearrange it as:

-6(2^x) + 4^2 - 16=0

Are you sure it's not 6(2^x) + 4^2 - 16=0 ?

If 6(2^x) + 4^2 - 16=0 is correct, then

6(2^x) + 4^2 - 16=16 - 16 = 0, that is, 6(2^x) = 0. Then x = 0 (answer)

8 0

3 years ago

The shaded region in the graph represents the solutions of this system of linear inequalities:

kotegsom [21]

Answer:

$y$

$y\leq 2x+3$

Step-by-step explanation:

step 1

Find the equation of the solid line

From the graph take the points (0,3) and (4,11)

Find the slope

$m=(11-3)/(4-0)\\m=8/4=2$

The equation of the solid line in slope intercept form is equal to

$y=mx+b$

we have

$m=2$

$b=3$ ----> the y-intercept is the point (0,3)

substitute

$y=2x+3$

therefore

The inequality is

$y\leq 2x+3$

step 2

Find the equation of the dashed line

The slope is given

$m=4$

From the graph take the y-intercept (0,-5)

The equation of the solid line in slope intercept form is equal to

$y=mx+b$

we have

$m=4$

$b=-5$

substitute

$y=4x-5$

therefore

The inequality is

$y$

because the shaded region is below the dashed line

therefore

The system of inequalities is

$y$

$y\leq 2x+3$

8 0

3 years ago

A towel has a repeating pattern of two green stripes, then 3 blue stripes, and then 1 yellow stripe. If the towel has 20 stripes

EleoNora [17]

The answer would be a total of 9 blue stripes.

4 0

3 years ago