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4 years ago

Please answer this question in two minutes

Mathematics

1 answer:

Stells [14]4 years ago

8 0

Answer:

D: 57 units

hope this helps!!

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47 how many different ways you can make the number 47 in tens and ones

OverLord2011 [107]

One way; 4 tens and 7 ones since 4 is in the tens place and 7 in the ones place.
Hope this helps.

7 0

3 years ago

Read 2 more answers

How do you simplify:<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%28125%20%5E%7B2%7D%20%7D%20%29%20%20%20%5E%7B%20-%20

Nady [450]

Answer:

$\huge\boxed{\sqrt{(125^2)^{-\frac{1}{3}}}=\dfrac{1}{5}}$

Step-by-step explanation:

$\sqrt{(125^2)^{-\frac{1}{3}}}\qquad\text{use}\ (a^n)^m=(a^m)^n\\\\=\sqrt{\left(125^{-\frac{1}{3}\right)^2}\qquad\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=125^{-\frac{1}{3}}\qquad\text{use}\ a^{-n}=\dfrac{1}{a^n}\\\\=\dfrac{1}{125^\frac{1}{3}}\qquad\text{use}\ a^\frac{1}{n}=\sqrt[n]{a}\\\\=\dfrac{1}{\sqrt[3]{125}}=\dfrac{1}{5}\qquad\text{because}\ 5^3=125$

5 0

3 years ago

The points (2,-5) and (5,r) lie on a line with slope 2. Find the missing coordinate r.

Andrew [12]

Answer: r = 1

Step-by-step explanation:

The slope of a line can be represented as $\frac{y_2-y_1}{x_2-x_1}$ . Plugging in the following values would provide you with:

$\frac{(r)-(-5)}{(5)-(2)} =2$

$\frac{r + 5}{3} = 2$

$r + 5 = 6$

$r = 1$

Hope it helps :) and let me know if you want me to elaborate on anything.

7 0

2 years ago

A punch recipe says to mix 4 cups of pineapple juice 8 cups of orange juice in 12 cups of Seltzer in order to make 18 servings o

Vedmedyk [2.9K]

Answer:

∴ Pineapple juice $18$ cups , Orange juice $36$ cups and Seltzer juice $54$ cups.

Step-by-step explanation:

Given;

To mix $4$ cups of pineapple juice $8$ cups of orange juice in $12$ cups of Seltzer in order to make $18$ servings of plants

Total cup of juice,

$(4+8+12)=24$ cups

To make $108$ cups of punch then;

$\frac{108}{24} =4.5$ ( By fraction rules )

Pineapple juice $=4\times 4.5=18$ cups

Orange juice $=8\times 4.5=36$ cups and

Seltzer juice $=12\times 4.5=54$ cups

So Pineapple juice $18$ cups , Orange juice $36$ cups and Seltzer juice $54$ cups.

3 0

3 years ago

What is the vertex form of the quadratic equation represented on the table?

sergeinik [125]

Check the picture below, so the parabola looks more or less like so, hmmm with a vertex at (-1 , -4), so, using those values from the table

$~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{"a"~is~negative}{op ens~\cap}\qquad \stackrel{"a"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}$

$\stackrel{vertex}{\stackrel{h}{-1}~~,~~\stackrel{k}{-4}}\qquad \implies y=a[x-(-1)]^2-4\implies y=a(x+1)^2-4 \\\\\\ \textit{we also know that} \begin{cases} x=2\\ y=14 \end{cases}\implies 14=a(2+1)^2-4\implies 18=9a \\\\\\ \cfrac{18}{9}=a\implies 2=a~\hspace{10em}\boxed{y=2(x+1)^2-4}$

7 0

2 years ago