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Tcecarenko [31]

3 years ago

8

Evaluate the expression |-2| + |-5|

2 answers:

myrzilka [38]3 years ago

6 0

I kno that 2 negative together u add them so (-7)

marissa [1.9K]3 years ago

4 0

Answer:

l-2l + l-5l = 7

Step-by-step explanation:

we know that when you find the absolute value of something, its always positive. all we are doing is counting how far that number is from 0 on a number line. thats why, l-2l + l-5l = 2+5= 7

hope this helps!

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Please help and explain I'll give u 12pts

White raven [17]

-7x² + 70x - 175

= -7(x² - 10x + 25)

= -7(x - 5)²

= -7(x + -5)²

Answer: -5

7 0

3 years ago

Sarah is pouring soda into papercups. She has 4.5 liters of soda. If each papercup holds 0.25 liters, how many papercups will sh

faltersainse [42]

Answer:

18

Step-by-step explanation:

4.5 liters / .25 liters/pcup = 18 pcups

5 0

2 years ago

If log2 5 = k, determine an expression for log32 5 in terms of k.

lukranit [14]

Answer:

$log_3_2(5)=\frac{1}{5} k$

Step-by-step explanation:

Let's start by using change of base property:

$log_b(x)=\frac{log_a(x)}{log_a(b)}$

So, for $log_2(5)$

$log_2(5)=k=\frac{log(5)}{log(2)}\hspace{10}(1)$

Now, using change of base for $log_3_2(5)$

$log_3_2(5)=\frac{log(5)}{log(32)}$

You can express $32$ as:

$2^5$

Using reduction of power property:

$log_z(x^y)=ylog_z(x)$

$log(32)=log(2^5)=5log(2)$

Therefore:

$log_3_2(5)=\frac{log(5)}{5*log(2)}=\frac{1}{5} \frac{log(5)}{log(2)}\hspace{10}(2)$

As you can see the only difference between (1) and (2) is the coefficient $\frac{1}{5}$ :

So:

$\frac{log(5)}{log(2)} =k\\$

$log_3_2(5)=\frac{1}{5} \frac{log(5)}{log(2)} =\frac{1}{5} k$

6 0

3 years ago

29. The table below represents the relationship of the price of carrots to their weight in ounces in a market: Price Weight, in

Alinara [238K]

The proportional relationship that represents the market that sells their carrots at a lower rate per pound is: y = 1.6x.

<h3>What is a proportional relationship?</h3>

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

y = kx

In which k is the constant of proportionality.

From the table, the rate is:

k = $8.8/4.4 = 2.

From the market, the rate is:

k = $4.8/3 = $1.6.

Hence the equation is y = 1.6x.

More can be learned about proportional relationships at brainly.com/question/10424180

#SPJ1

3 0

2 years ago

Milo cut his cake into 2 equal pieces. He ate 2pieces of cake for his birthday.

Sauron [17]

Answer:

$1$ $or \frac{2}{2}$

Step-by-step explanation:

<h2><u>We know that Milo cut his cake into 2 different pieces, so:</u></h2>

$\frac{x}{2}$

<h2><u>He then eats two pieces of the cake. so:</u></h2>

$2$ $pieces$ $of$ $cake$ $=$ $x$

$\frac{2}{2} = 1$

8 0

3 years ago