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slamgirl [31]
3 years ago
8

I need help I’m not sure

Mathematics
1 answer:
Daniel [21]3 years ago
3 0

\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ (\stackrel{x_1}{3}~,~\stackrel{y_1}{5})\qquad  (\stackrel{x_2}{-6}~,~\stackrel{y_2}{-6}) \qquad \left(\cfrac{ x_2 +  x_1}{2}~~~ ,~~~ \cfrac{ y_2 +  y_1}{2} \right) \\\\\\ \left( \cfrac{-6+3}{2}~~,~~\cfrac{-6+5}{2} \right)\implies \left(\cfrac{-3}{2}~~,~~\cfrac{-1}{2}  \right)\implies \left( -1\frac{1}{2}~,~-\frac{1}{2} \right)

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The formula
son4ous [18]

Answer:

The truck travel must to have a constant speed of 22.06\ ft/sec

Step-by-step explanation:

we have

d=1.3t^{2}+t+2

where

d expresses a car's distance in feet

t is the number of seconds

<em>Find the distance d for t=8 sec</em>

d=1.3(8)^{2}+8+2=93.2\ ft

<em>Find the distance d for t=8.2 sec</em>

d=1.3(8.2)^{2}+8.2+2=97.612\ ft

The total distance in this interval of 0.2 sec is

97.612-93.2=4.412\ ft

<em>Find the speed of the car</em>

Divide the total distance by the time

4.412/0.2=22.06\ ft/sec

therefore

The truck travel must to have a constant speed of 22.06\ ft/sec

4 0
3 years ago
Hi can you guys help me? In 1,2,3 and 4?
Andrew [12]

1. 3, -1, -5, -9

2. -5, -3, -1, 1

3. -2, 0, 2, 4

4. 6, 5, 4, 3

Hope this helps!

7 0
3 years ago
10. Write the slope-intercept form of the equation of the
Ghella [55]

Answer:

y = -3x + 18

Step-by-step explanation:

The slope intercept form of a line is expressed as y = mx+c

m is the slope

b is the intercept

Get the slope

Given the equation of a line 9x + 3y = 6

Rewrite

3y = -9x + 6

y = -9x/3 + 6/3

y = -3x + 2

Hence the slope of the line is -3

Get the y-intercept

Substitute m = -3 and (5,3) into y  = mx+b

3 = -3(5) + b

3 = -15 + b

3 + 15 = b

18 = b

b = 18

Get the required equation

y = mx+b

y = -3x + 18

This gives the required equation

6 0
3 years ago
In the figure below, m
devlian [24]

Answer:

y=24

z=100

Step-by-step explanation:

5y-40=80(vertical angles)

add 40 to each side

120-40=80

z=180-80

z=100

4 0
3 years ago
i need help writing (4x 100) + (9 x 10) + (7 x 1) + [5x10] + [6x (1/100))+ [3x (1/1000)] in standard form using the place value
Sveta_85 [38]

Answer:

497.563

Step-by-step explanation:

(4x 100) + (9 x 10) + (7 x 1) + [5x(1/10)] + [6x (1/100))+ [3x (1/1000)]

<u>Place value chart</u> :

\begin{matrix}\text{hundreds} &\text{tens} &\text{ones} &&\text{tenths} &\text{hundredths} &\text{thousandths} \\ 4&9&7&.&5&6&3\end{matrix}

8 0
1 year ago
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