3 years ago

HELP PLEASE!! IS A TEST

Mathematics

1 answer:

Snezhnost [94]3 years ago

4 0

Answer:

x=2 y 1

Step-by-step explanation:

4×2+3×1=11

8+3=11

3×2-2×1=4

6-2=4

You might be interested in

What linear expression would you add to -4y +2 to have the sum y?

ICE Princess25 [194]

Sana makatulong po sa inyo;)

8 0

2 years ago

Need help with number 5 plz and thank you

____ [38]

Yes, my dear~♥️.
x=1, y=7
x=2, y=9
x=3, y=11
x=4, y=13
So your answer is point B.)

4 0

2 years ago

Read 2 more answers

Eighty-five percent of the students dressed up for spirit week. What fraction of the student body did NOT dress up for spirit we

siniylev [52]

Answer:

17/20

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A farmer who grows genetically engineered corn is experiencing trouble with corn borers. A random check of 5,000 ears revealed t

Ivenika [448]

Answer:

Probability that an ear of corn selected at random will contain no borers is 0.4966.

Step-by-step explanation:

We are given that the distribution of the number of borers per ear approximated the Poisson distribution. The farmer counted 3,500 borers in the 5,000 ears.

Let X = Number of borers per ear

The probability distribution of the Poisson distribution is given by;

$P(X=x) = \frac{e^{-\lambda }\times \lambda^{x} }{x!} ; x = 0,1,2,3,......$

where, $\lambda$ = parameter of this distribution and in our question it is proportion of bores in the total ears = $\frac{3500}{5000}$ = 0.7

SO, X ~ Poisson( $\lambda$ = 0.7)

Now, probability that an ear of corn selected at random will contain no borers is given by = P(X = 0)

P(X = 0) = $\frac{e^{-0.7}\times 0.7^{0} }{0!}$

= $e^{-0.7}$ = 0.4966

Hence, the required probability is 0.4966.

6 0

3 years ago

A boy sent a telegram which contains 36 words to his mother if the first 12 words cost $20 and each additional word cost 2$ per

aliina [53]

Answer:

(d) 60 kobo

Step-by-step explanation:

36 divided by 12 = 3

3 x 20 = 60

Hope this helps!

4 0

3 years ago