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3 years ago

Is –5 × –5 positive or negative?

Mathematics

2 answers:

liberstina [14]3 years ago

7 0

Answer:

positive

Step-by-step explanation:

a negative times a negative is always a positive

Westkost [7]3 years ago

6 0

-5 x -5 = 25, Positive

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PLEASE HELP WITH THIS ILL GIVE BRAINLIEST

Mrrafil [7]

Answer:

$\text{a. }x=7, x=-7, \\\text{b. }x=16, x=-16, \\\text{c. }x=3, x=-17, \\\text{d. }x=7, x=-7$

Step-by-step explanation:

For $|x|=y$ , we have two cases:

$\begin{cases}x=y, \\x=-y\end{cases}$

Using this, we can solve all four of the problems:

$\text{a. }|x|=7,\\\begin{cases}x=7, \\x=-7\end{cases}$

$\text{b. }|2x|=32,\\\begin{cases}x=16, \\x=-16\end{cases}$

$\text{c. }|x+7|=10,\\\begin{cases}x+7=10, x=\boxed{3,} \\x+7=-10, x=\boxed{-17}\end{cases}$

$\text{d. }5|x|=35,\\\begin{cases}x=7, \\x=-7\end{cases}$

5 0

3 years ago

Read 2 more answers

Summer has an offer to buy an item with a sticker price of $13,200 by paying $460 a month for 36 months. What interest rate is S

AysviL [449]

Answer:

the annual interest rate is 7.583%

Step-by-step explanation:

We are given

Summer has an offer to buy an item with a sticker price of $13,200

so, we have

P=13200

paying $460 a month for 36 months

so, we can find total amount

$A=460\times 36$

$A=16560$

Let's assume

annual interest is r

total time =36 months

so, total number of years =3

Since, it is compounded monthly

so, n=12

now, we can use formula

$A=P(1+\frac{r}{n} )^{nt}$

now, we can plug values

$16560=13200(1+\frac{r}{12} )^{36}$

now, we can solve solve for r

$(1+\frac{r}{12} )^{36}=\frac{16560}{13200}$

$r=0.07583$

So, the annual interest rate is 7.583%

6 0

3 years ago

Read 2 more answers

What is 2 3/4 + 3 2/4? Plz answer correctly.

Setler79 [48]

6 1/4! explanation: 2 3/4 + 3 = 5 3/4 next, 5 3/4 + 2/4 = 6 1/4

5 0

3 years ago

Which of the following statements are true about the graph of f(x) = -2tan(3x - 6) + 1? Select all that apply.

Digiron [165]

A. isn't correct because functions are by their definition different.

B is true. Domain of both is x>0 and range is 1/2 as large. because of 1/2 factor in first function

C is true . because of -2 it is shifted to the right by 2 and it is shrunk vertically by 1/2

D isn't true because ranges are not the same.

3 0

3 years ago

Number 31<br> Any help please?

Alex73 [517]

2,200*14=30,800
2,000*13=26,000
14+13=27
30,800+26,000=56,000

Your answer is C, 13(:

5 0

3 years ago