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3 years ago

What is the atomic number of the element represented by the diagrams

Mathematics

1 answer:

ratelena [41]3 years ago

4 0

Answer:where is the diagram so i could help you

Step-by-step explanation:

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4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

3 years ago

O is the center of the regular octagon below. Find its area. Round to the nearest tenth

Sedbober [7]

Answer:229.1

Step-by-step explanation: to much work I thought to hard that’s the answer your welcome buddy

5 0

2 years ago

A factory inspector found flaws in 3 out of 18 wooden boxes what is the experimental probability that the next wooden box will b

Sphinxa [80]

Answer:

16.666% would be flawed.

Step-by-step explanation:

7 0

2 years ago

PLEASE ANSWER ASAP

Nastasia [14]

Answer:

y = 4 $(2)^{x}$

Step-by-step explanation:

For an exponential function in standard form

y = a $(b)^{x}$

To find the values of a and b, use ordered pairs from the table

Using (0, 4 ), then

4 = a $b^{0}$ ( $b^{0}$ = 1 ), so

a = 4

y = 4 $b^{x}$

Using (1, 8 ), then

8 = 4 $b^{1}$ = 4b ( divide both sides by 4 )

2 = b

Thus

y = 4 $(2)^{x}$ ← exponential function

7 0

3 years ago

The ______________ of a sample statistic is the probability distribution of the population of all possible values of the sample

enot [183]

Answer:

Sampling distribution

Step-by-step explanation:

The sampling distribution of a sample statistic is the probability distribution of the population of all possible values of the sample statistic.

4 0

3 years ago