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3 years ago

Help asap plsplspls!! :)

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

8 0

Converted to a decimal it’s -0.8

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Of 7<br> Express in the form n : 1.<br> Give n as a fully simplified fraction.<br> 6:14

hjlf

Answer:

The ratio is;

3/7 : 1

Step-by-step explanation:

Here, we want to express the given ratio in the form n:1 where n is a fully simplified fraction

Mathematically, we have this by dividing both numbers by 14

That would be ;

6/14 : 14/14

= 3/7 : 1

3 0

3 years ago

Simplify the expressions<br> (a^2b^-3/a^-2b^2)^2

poizon [28]

Answer:

$(\frac{a^{2}b^{-3} }{a^{-2}b^{2} })^{2} = (a^{2-(-2) }b^{-3 - 2})^{2} \\ = (a^{4}b^{-5} )^{2} = (a^{4})^{2} (b^{-5})^{2} = a^{8} b^{-10}$

Here is for you.

Step-by-step explanation:

6 0

3 years ago

21/50 of the seats for the football game have been sold. This is equal to what decimal?

valentinak56 [21]

First make the fraction over 100

21/50(2/2) = 42/100

42/100 = 0.42

0.42 is your answer

hope this helps

6 0

3 years ago

Pre-image point N(6, -3) was dilated to point N'(2, -1). What was the scale factor used?

blagie [28]

Question 1

Let the scale factor be k.

Then, we have the mapping

$N(6,-3)\to N'(6k,-3k)$

This implies that:

$(6k,-3k)=(2,-1)$

We equate any corresponding component find the value of the scale factor k.

6k=2

$k=\frac{2}{6}$

$k=\frac{1}{3}$

Hence the scale factor is $\frac{1}{3}$

Question 2:

The midpoint of any two points can be calculated using the formula;

$(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$

We want to find the midpoint of (-8, 5) and (2, -2).

$(\frac{-8+2}{2}, \frac{5+-2}{2})$

$(\frac{-6}{2}, \frac{3}{2})$

The midpoint is:

$(-3, \frac{3}{2})$

5 0

3 years ago

Read 2 more answers

Needing help with some of my college summer HW

Arte-miy333 [17]

B. Half the speed of the car. and C. The number of different colors on the page.

Variables are symbols for unknown values, so you have to find the statements that contain an unknown value.

A. 27 ⇒ The point value is known, so there is no variable.

B. $\frac{1}{2}$ X ⇒ Since the speed of the car is unknown, the variable X represents the speed of the car. This variable is multiplied by $\frac{1}{2}$ or divided by 2 to get half the speed of the car.

C. X ⇒ The number of different colors is not known, so the variable X represents the number of different colors.

D. 80 ⇒ There is nothing unknown in the statement.

5 0

3 years ago