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2 years ago

2. What decimal equals seven hundred forty-six thousandths?

Mathematics

2 answers:

damaskus [11]2 years ago

5 0

The correct answer is A because when you move the decimal over you’ll get 746,000

morpeh [17]2 years ago

4 0

Answer:

A. 0.0746

Step-by-step explanation:

Because it is in the thousandths place

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The ratio of male students to female students in a class is 5:4. If the number of male students in the class is

beks73 [17]

Answer:

The answer is 20

Step-by-step explanation:

In ratio what you do one side you do on the other side 5:4=25:20

5×5=25

4×5=20

6 0

2 years ago

Amal worked a total of 30 hours last week on Saturday and Sunday he worked 5 times and many hora than he worked the rest of the

aleksley [76]

6 because 30 divided by5 is 6

7 0

3 years ago

4)^-5 write in a simplified fraction

erastova [34]

$\bf 4^{-5}?\qquad \textit{well, bear in mind that}\\
----------------------------\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}\qquad \qquad

\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\\ \quad \\
% negative exponential denominator
a^{{ n}} \implies \cfrac{1}{a^{- n}}
\qquad \qquad 

\cfrac{1}{a^{- n}}\implies \cfrac{1}{\frac{1}{a^{ n}}}\implies a^{{ n}}\\
----------------------------\\
thus\implies 4^{-5}\implies \cfrac{1}{4^{+5}}\implies \cfrac{1}{4^5}\implies \cfrac{1}{1024}$

8 0

2 years ago

What are the values that make x^2 + bx + 64 a perfect square?

spayn [35]

Answer:

b = ±16

Step-by-step explanation:

Normally to find the number we add to make it a perfect square

We take the coefficient of x

Divide by 2

b/2

Then square it

(b/2) ^2

In this case, we are adding 64

(b/2) ^2 = 64

Take the square root of each side

sqrt((b/2) ^2) = sqrt(64)

b/2 = ±8

Multiply each side by 2

b/2*2 = ±8 *2

b = ±16

7 0

3 years ago

Read 2 more answers

Determine the equation of a circle having a diameter with endpoints at (12,-14) and (2,4)

Nesterboy [21]

$The \ equation \ of \ a \ circle \ with \ centre \ (a,b) \ and \ radius \ "r" \ is : \\ \\(x-a)^2+(y-b)^2=r^2$

$(12,-14) , \ \ \ (2,4)\\Since \ the \ center \ of \ the \ circle \ is \ the \ midpoint \ of \ the \ line \ segment \\ connecting \ two \ endpoints \ of \ a \ diameter \\\\Midpoint \ Formula \\\\(a,b)=(\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})=(\frac{12+2}{2},\frac{-14+4}{2})=(\frac{14}{2},\frac{-10}{2})=(7,-5)$

$The \ radius \ is \ the \ distance \ from \ the \ center \ to \ some \ point \ on \ the \ circle.\\ The \ distance \ from \ (7,-5) \ to \ (12, -14) \ is: \\ \\ r= \sqrt{(x_{2}-x_{1})^2 +(y_{2}-y_{1})^2}\\\\r= \sqrt{(12-7)^2 +(-14+5)^2}=\sqrt{5^2+(-9)^2}=\sqrt{25+81}=\sqrt{106}\\\\(x-7)^2+(y-(-5))^2= (\sqrt{106})^2 \\ \\(x-7)^2+(y+5)^2=106$

8 0

2 years ago