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3 years ago

Which expression can be used to determine 50% of 42?

Mathematics

2 answers:

Masja [62]3 years ago

8 0

Answer: B 42 divided by 2

Step-by-step explanation:

snow_lady [41]3 years ago

4 0

Answer: 42 divided by 2

Step-by-step explanation: 50% is one half, and 42/2 is one half of 42.

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Find the slope between the following points (-2,3).and (-7.-2)

castortr0y [4]

Answer:

slope equals the change in x over the change in y. So slope equal negative 1.

8 0

3 years ago

What is the solution to the equation below? -3 + sqrt 2x - 1 =8

sattari [20]

Answer:

$x=61$

Step-by-step explanation:

$-3+\sqrt{2x-1} =8$

$\sqrt{2x-1} -3=8$

Add 3 to both sides of the equation:

$\sqrt{2x-1}-3+3=8+3$

$\sqrt{2x-1}=11$

Solve the square root:

$\sqrt{2x-1}=11$

$2x-1=11^{2}$

$2x-1=121$

$2x-1+1=121+1$ {add 1 to both sides}

$2x=122$

$x=122/2$

$x=61$

hope this helps.......

3 0

3 years ago

When a baseball park owner charges $3.00 for admission, there is an average attendance of 100 people. For every $0.10 increase i

zloy xaker [14]

Answer:

max rev = 80(4) = $320

Step-by-step explanation:

let us do this in pennies

R = (100 - x/5)(300 + x)

d/dr = -2x - 200

(-2x-200)/5 = 0

-2x = 200

x = 100

6 0

3 years ago

What is the perimeter of the figure

Fofino [41]

Answer:

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

If the line is dilated by a factor of 1/3 , what is the equation of the resulting line?

rusak2 [61]

Answer:

The equation of a line on the plane is of the form $f(x)=mx+b$ , with m and b real numbers.

If the line is vertically dilated by a factor of $\frac{1}{3}$ , then the equation of the resulting line g(x) is $g(x)=\frac{1}{3}f(x)=\frac{mx+b}{3}=\frac{m}{3}x+\frac{b}{3}$ .
If the line is horizontally dilated by a factor of $\frac{1}{3}$ , then the equation of the resulting line g(x) is $g(x)=f(\frac{1}{3}x)=m(\frac{1}{3}x)+b=\frac{m}{3}x+b$ .

5 0

3 years ago