2 years ago

Add the following numbers. (-4) + (-9) =

Mathematics

1 answer:

soldi70 [24.7K]2 years ago

6 0

Answer:

-13

Step-by-step explanation:

Adding a negative means that you subtract the number as + (-) = -

This means that the equation is -4-9=-13.

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Find f(-2).<br><br> f(x) = 9x2 - 5x + 2 <br> A) 14 <br> B) 18 <br> C) 28 <br> D) 48

kifflom [539]

F(x) = 9x²<span> - 5x + 2

</span>f(-2) = 9(-2)² - 5(-2) + 2
<span>f(-2) = 36 + 10 + 2
</span><span>f(-2) = 48</span>

3 0

2 years ago

Sophia puts $250 in the bank with a 2.5% annual interest rate compounded monthly. If Sophia does not touch his money, how much m

Fittoniya [83]

Answer:

Step-by-step explanation:

Deposited amount initially (P) = $250.

Rate of interest(r) = 2.5% compounded monthly = 0.025

Number of years (t) = 4.

Number of months in an year (n) = 12.

Formula for compound interest:

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

Plugging values in formula, we get

$A= 250(1+\frac{0.025}{12})^{12\times 4}$

$A= 250(1.00208)^{48}$

$A= 250\times \:1.10506$

A=276.26.

<h3>Therefore, correct option is D) $276.26.</h3>

7 0

2 years ago

Consider the function represented by 9x + 3y = 12 with x as the independent variable. How can this function be written using

klio [65]

Answer:

f(x) = - 3x + 4

Step-by-step explanation:

Note that y = f(x)

Given

9x + 3y = 12 ← Rearrange making y the subject

Subtract 9x from both sides

3y = - 9x + 12 ( divide all term by 3 )

y = - 3x + 4, thus

f(x) = - 3x + 4

4 0

2 years ago

2 box plots. The number line goes from 60 to 79. For the swim team, the whiskers range from 64 to 74, and the box ranges from 71

mestny [16]

Answer:

2 and 5

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Is v = -1 / 3 a solution of 9v-2= 3v?

Gre4nikov [31]

Answer:

No, -1/3 is not a solution

Step-by-step explanation:

See if it is a solution by plugging in -1/3 as v and seeing if the equation is correct:

9v - 2 = 3v

9(-1/3) - 2 = 3(-1/3)

-3 - 2 = -1

-5 = -1

-5 $\neq$ -1

So, since the equation is incorrect, -1/3 is not a solution.

4 0

2 years ago