All categories

3 years ago

Factor 9t²- 18u +21

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

7 0

3( 3t^2 - 6u + 7) hope this helps

You might be interested in

Whats 7/8+2/3+11/12?

sdas [7]

Simplify the expression and get:
Exact form : 59/24
Decimal form: 2.45833333...
Mixed number form: 2 and 11/24
Hope this helps

7 0

3 years ago

uppose that the length of 20 years worth of baseball games has been investigated, and that it has been found that the average (m

alexdok [17]

Answer:

P(120< x < 210) = 0.8664

Step-by-step explanation:

given data

time length = 20 year

average mean time μ = 165 min

standard deviation σ = 30 min

randomly selected game between = 120 and 210 minute

solution

so here probability between 120 and 210 will be

P(120< x < 210) = $P(\frac{120-165}{30}< \frac{x-\mu }{\sigma }$

P(120< x < 210) = $P(\frac{-45}{30}< \frac{x-\mu }{\sigma }$

P(120< x < 210) = P(-1.5< Z < 1.5)

P(120< x < 210) = P(Z< 1.5) - P(Z< -1.5)

now we will use here this function in excel function

=NORMSDIST(z)

=NORMSDIST(-1.5)

P(120< x < 210) = 0.9332 - 0.0668

P(120< x < 210) = 0.8664

8 0

3 years ago

Help me out pleaseeee

gladu [14]

4x - y = 5 --> 4x = y + 5

substitute

4x + 4y = -4

(y + 5) + 4y = -4

5y + 5 = -4

5y = -9

y = -1.8

solve x

4x = y + 5 = -1.8 + 5 = 3.2

x = 3.2/4 = 0.8

6 0

3 years ago

Please help me <br> I have to solve the triangle with the law of sines

Nikitich [7]

Check the picture below.

and since a triangle has a sum of 180° for all interior angles.

A = 180 - 39.34 - 25

A = 115.66

$\bf \cfrac{sin(25^o)}{44}=\cfrac{sin(A)}{a}\implies \cfrac{sin(25^o)}{44}=\cfrac{sin(115.66^o)}{a} \\\\\\ a\cdot sin(25^o)=44\cdot sin(115.66^o)\implies a=\cfrac{44\cdot sin(115.66^o)}{sin(25^o)} \\\\\\ a\approx 93.8452\implies \stackrel{\textit{rounded up}}{a = 93.85}$

make sure your calculator is in Degree mode.

7 0

3 years ago

Read 2 more answers

Which is the graph of y–3= - 2/3 (x + 6)?

NikAS [45]

Answer:

2 over 3

Step-by-step explanation:

4 0

3 years ago