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Elodia [21]
3 years ago
6

Please i need help realy fast or i will fail this semester

Mathematics
2 answers:
katrin2010 [14]3 years ago
8 0
Y=mx+b
m=slope
b=yintercept

given
y=-2x+3 and
y=-4x-1

first equation is slope -2 and yintercept 3
second is slope -4 and yintercept -1

3rd option
DENIUS [597]3 years ago
4 0
This is my best choice: Graph the first equation which has slope = -2 and y intercept = 3; graph the second equation which has slope = -4 and y intercept = -1 and find the point of intersection of the two lines.
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For a track meet, Tara ran the 1,600 m event at constant speed in 5 minutes and 20 seconds. What was her speed?
9966 [12]

Answer:

300 m/min

Step-by-step explanation:

Using the general formula of d = rt, where d = distance, r = rate and t = time, we can solve for the missing variable (r, or speed). Given Tara's distance of 1600 m and her total time of 5 minutes and 20 seconds, first convert her time into just minutes:

5 \frac{20}{60}=\frac{1}{3}

5\frac{1}{3}=\frac{16}{3}

1600 = r(16/3)

Multiply both sides by reciprocal of 16/3:  3/16(1600) = r(16/3)(3/16)

Solve for 'r': 300 meters per minute

4 0
3 years ago
What is the sum of 8 and a number?
miskamm [114]
" the sum " means add

the sum of 8 and a number...

8 + n <== ur expression
5 0
3 years ago
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PLZZZZZZ HELP ME I'M GIVING BRAINLIEST AND 14 POINTS
tiny-mole [99]

Answer:

D. 2x - 2 + 3x

Step-by-step explanation:

First, add 2x and 3x. Then you get 5x. Then you get the equivalent expression 5x-2.

5 0
3 years ago
PLEASE PLEASE HELP I DON'T UNDERSTAND AND IT'S DUE TMRW
zmey [24]

The answer to the above math expression is . See the computation below.

<h3>What is the calculation justifying the above?</h3>

First we solve for the numerator. The numerator is:

7√2 - 2√16

Where:

7√2 = 9.89949493661; and

2√16 = 8

Hence,

7√2 - 2√16 = 1.89949493661

Next we solve for the denominator. This is given as:

3√8=8.48528137424

Hence,

(7√2 - 2√16)/3√8 = 1.89949493661/8.48528137424

= 0.22385762508

$\approx$ 0.224

Learn more about math expressions:

brainly.com/question/4344214

#SPJ1

5 0
2 years ago
Find the y-intercept and x-intercept of the line.
Ad libitum [116K]
Y-intercept: (0, -6)

X-intercept: (9, 0)
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3 years ago
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