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2 years ago

10

An artist makes paperweights in the shape of square pyramids. The paperweights are filled with yellow sand. How much sand does t

he artist need to fill this paperweight?

1 answer:

sattari [20]2 years ago

4 0

Answer: he needs to mesure

Step-by-step explanation:

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Kim S age is twice that of her sister when you add Kim's age to her sisters age of 36 how old is each sister right in equation t

Damm [24]

equation (s+k=36)
s=18
k=18

6 0

3 years ago

Ali has a quarters, d dimes, and n nickels. He gets four more quarters. He gives away three

viva [34]

Answer:

(q + 4) + (d - 3) + n

Step-by-step explanation:

You have to add all of them.

You have to add q, d, and n.

so q + d + n

and then you add four more q's so

(q + 4) + d + n

and then you lost 3 dimes so

(q + 4) + (d - 3) + n

and nothing happened to n so that is the answer.

4 0

2 years ago

How do you say 0.3 in words

svlad2 [7]

0.3 is 3 tenths in word form. After a decimal, numbers are said as tenths, hundredths, thousandths, and so on.

7 0

2 years ago

Read 2 more answers

3 x [9 – (4 + 2) = 2]

Pani-rosa [81]

Answer:

<h2>False</h2>

Hope this helps

hzbzbzbx

4 0

3 years ago

For what value of k is there one solution to the given quadratic equation (k+1)x²+4kx+2=0.

andriy [413]

Answer:

If $k = 1$ or $k = -\frac{1}{2}$ , there is only one solution to the given quadratic equation.

Step-by-step explanation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = (x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

The signal of $\bigtriangleup$ determines how many real roots an equation has:

$\bigtriangleup > 0$ : Two real and different solutions

$\bigtriangleup = 0$ : One real solution

$\bigtriangleup < 0$ : No real solutions

In this problem, we have the following second order polynomial:

$(k+1)x^{2} + 4kx + 2 = 0$ .

This means that $a = k+1; b = 4k; c = 2$

It has one solution if

$\bigtriangleup = 0$

$b^{2} - 4ac = 0$

$16k^{2} -8(k+1) = 0$

$16k^{2} - 8k - 8 = 0$

We can simplify by 8

$2k^{2} - k - 1 = 0$

The solution is:

$k = 1$ or $k = -\frac{1}{2}$

So, if $k = 1$ or $k = -\frac{1}{2}$ , there is only one solution to the given quadratic equation.

4 0

3 years ago