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postnew [5]
4 years ago
8

Round 8.54 to the nearest tenth

Mathematics
2 answers:
olchik [2.2K]4 years ago
7 0
The nearest tenth means 1 decimal place.
so the answer is 8.5
Luden [163]4 years ago
7 0
If it is 4 and less i.e. stay the same. If it is 5 and bigger you add 1. So you keep 5 the same. The answer is 8.5
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Help me asap ....................
OLEGan [10]

Answer:

x = 0 or x = -8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

17=x2+8x+17

Step 2: Subtract x^2+8x+17 from both sides.

17−(x2+8x+17)=x2+8x+17−(x2+8x+17)

−x2−8x=0

Step 3: Factor left side of the equation.

(−x)(x+8)=0

Step 4: Set factors equal to 0.

−x=0 or x+8=0

x=0 or x=−8

8 0
3 years ago
Simplify and put in a Simplified Expression:<br> 12x + 3x2-6-6x
denpristay [2]

Answer:

3(2x+x²-2)

Step-by-step explanation:

12x+3x²-6-6x

collect like terms

6x+3x²-6

factor the expression

3(2x+x²-2)

3 0
2 years ago
Suppose a punter kicks a football so that the upward component of its velocity is 80 feet per second. If the ball is 3 feet off
Alexxandr [17]
So hmm check the picture below

\bf \qquad \textit{initial velocity}\\\\ h = -16t^2+v_ot+h_o \qquad \text{in feet}\\&#10;\\&#10;v_o=\textit{initial velocity of the object}\\&#10;h_o=\textit{initial height of the object}\\&#10;h=\textit{height of the object at "t" seconds}\\\\&#10;-----------------------------\\\\&#10;h(t)=3+80t-16t^2\iff h(t)=-16t^2+80t+3

a)

well, clearly is 80 ft/s

b)

when t = 1? well 80(1)

c)

in the picture, x-axis is the time and y-axis is the height
so, it reaches its maximum at the vertex, after "x" seconds

\bf \begin{array}{lcccll}&#10;h(t)=&-16t^2&+80t&+3\\&#10;&\uparrow &\uparrow &\uparrow \\&#10;&a&b&c&#10;\end{array}\qquad &#10;\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)

so it reached the vertex after \bf -\cfrac{{{ b}}}{2{{ a}}}\quad seconds

d)

the maximum height of the ball is \bf {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\quad feet

8 0
3 years ago
A rectangle is 29 feet long and 7 feet long. What is the area of this rectangle? 203 ft² 143 ft² 107 ft² 72 ft²
Alex Ar [27]

Answer:

203 ft²

Step-by-step explanation:

We need to use multiplication for the answer of this.

29 × 7 = 203

so that means that the answer in feet is 203 ft²

good luck hope this helped

-cheesetoasty

5 0
3 years ago
What is the equation of a line with slope 4 and intercept 12?
nadezda [96]

Answer:

y = 4x + 12

General Formulas and Concepts:

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

Slope <em>m</em> = 4

y-intercept <em>b</em> = 12

<u>Step 2: Write function</u>

  1. Substitute [Form]:          y = 4x + 12
5 0
3 years ago
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