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3 years ago

HELP!!!! anyone know any of these answers for the “Homework: February Spiral Review” 20 questions!!!!

Mathematics

2 answers:

ANTONII [103]3 years ago

8 0

Answer:

nonliner

Step-by-step explanation:

it changes.

the input is right but the output isn't

Zina [86]3 years ago

3 0

Answer:

Linear equation

Step-by-step explanation:

The rate of change for y with respect to x remains constant for the linear equation.

The rate of change is 3

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How is |3+10| = |3| + |10| equal

Morgarella [4.7K]

Answer:

First we must figure out what the question means. It is asking how the absolute value of 3+10 is equivalent to the absolute value of 3 plus the absolute value of ten.

Next we should solve the expressions: The absolute value of 3 plus 10 is 13. The absolute value of 3 plus the absolute value of 10 is 13. 13 and 13 are the same number.

Therefore, the expressions are equivalent. Thus, having your answer.

8 0

2 years ago

Daniel dives into a swimming pool. The height of his head is represented by the function h(t) = -8t2 - 28t + 60, where t is the

8_murik_8 [283]

So, h(t) is how far is Daniel's head from the surface of the water, namely the surface itself is when the height is nill, so his head is at the surface and the height of it is just 0, thus h(t) = 0. Namely, what is "t" when h(t) is 0?

$\bf h(t)=-8t^2-28t+60\implies \stackrel{h(t)}{0}=-8t^2-28t+60
\\\\\\
0=-2t^2-7t+15\implies 2t^2+7t-15=0\implies (2t+3)(t-5)=0
\\\\\\
\begin{cases}
2t+3=0\implies 2t=-3\implies &t=-\frac{3}{2}\\\\
t-5=0\implies &\boxed{t=5}
\end{cases}$

clearly the seconds cannot be a negative unit, so is not -3/2.

6 0

2 years ago

Write the expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2 in simplest form. Then, answer the following questions using complete

Nataliya [291]

2x2 + 5xy - 3y
there are three terms in the simplified expression
there is one negative term in the simplified expression

8 0

3 years ago

How do i calculate this? PV = 100,000(1+0.03)

meriva

Answer:

103,000

Step-by-step explanation:

Use your knowledge of decimal arithmetic. Or, use a calculator.

100,000(1 +.03) = 100,000·1.03 = 1000·103 = 103,000

5 0

2 years ago

I did bad but what's the answer for this?

Setler [38]

Answer:

28 degrees

Step-by-step explanation:

A triangle is always equal to 180 degrees so add the degrees together

40+2x+3x=180

40+5x=180

5x/5=140/5

x=28

8 0

2 years ago