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Marysya12 [62]
3 years ago
12

X^2+7x-30 Factor the quadratic Show steps

Mathematics
1 answer:
DENIUS [597]3 years ago
6 0

Answer:

(−3)(+10P)

Step-by-step explanation:

in pic

(Hope this helps can I pls have brainlist (crown) ☺️)

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If = 12 –3 a,find the value ofxwhen a= 8
faust18 [17]

Answer:

-12

Step-by-step explanation:

x = 12-3a

When a=8:

x = 12-3(8)

x = 12 - 24

x = -12

5 0
2 years ago
An athletics coach states that the distribution of player run times (in seconds) for a 100-meter dash is normally distributed wi
Elza [17]

Answer:

P(X

And we can find this probability using the normal standard distribution table and we got:

P(z

And the percentage faster than 13.28 seconds would be 91.9%

Step-by-step explanation:

Let X the random variable that represent the runtimes of a population, and for this case we know the distribution for X is given by:

X \sim N(13,0.2)  

Where \mu=13 and \sigma=0.2

We want to find this probability:

P(X

And we can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

Using this formula we have:

P(X

And we can find this probability using the normal standard distribution table and we got:

P(z

And the percentage faster than 13.28 seconds would be 91.9%

8 0
3 years ago
A student rolls a standard number cube. What is the probability the student rolled a 4, given that the number rolled was greater
Temka [501]

Answer:1/5

Step-by-step explanation:

8 0
3 years ago
Is it possible to draw an acute isosceles triangle with side lengths of 6 cm, 9 cm, and 12 cm and angles of 30°, 50°, and 100° ?
bagirrra123 [75]

Answer:

Yes

Step-by-step explanation:

A full triangle is 180 degrees. 100 + 30 + 50 = 180.

I hope you get it right! :D

(i hope i get brainlist)

5 0
2 years ago
What value of t makes (-2) +(-11) = t a true sentence?
Bas_tet [7]

Answer:

t = -13

Step-by-step explanation:

Given expression:

  • (-2) +(-11) = t

Solving for t:

  • -13 = t
  • t = -13
8 0
3 years ago
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