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4 years ago

What is the element with 98 atomic number?!

Mathematics

1 answer:

BabaBlast [244]4 years ago

3 0

Answer:

Cf is the answer, Cf is also known as Californium.-

-Seth

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What is 8(4-x) = 772

Drupady [299]

8(4-x) = 772

32 - 8x = 772

-8x = 772 - 32

-8x = 740

8x = -740

x = -740/8

x = -92.5

hope it helps!

8 0

3 years ago

Find the distance between the points (5/2,3) and (3/2,8)

AURORKA [14]

Answer:

d = $\sqrt{26}$ ≈ 5.1 ( to 1 dec. place )

Step-by-step explanation:

to calculate the distance d use the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = ( $\frac{5}{2}$ , 3) and (x₂, y₂ ) = ( $\frac{3}{2}$ , 8)

d =√ ( $\frac{3}{2}$ - $\frac{5}{2}$ )² - (8 - 3)²

= $\sqrt{1+25}$ = $\sqrt{26}$ ≈ 5.1

7 0

3 years ago

I’m confused on if I have to multiple decimals or not.

Luba_88 [7]

x and y varies directly and the equation will be: y=480.x

Step-by-step explanation:

We need to write the equation to represent the relationship between x and y

We can find if x and y varies directly or indirectly.

Checking if x and y varies directly

if x and y varies directly then y=kx or y/x = k then k is constant

if x=2 and y=960 then k is:

k=y/x= 960/2 = 480

if x=2 and y=960 then k is:

k=y/x = 1440/3=480

if x=2 and y=960 then k is:

k=y/x= 2880/6=480

if x=2 and y=960 then k is:

k=y/x=3840/8 = 480

Since y/x = 480 for every value of y and x in the table, so x and y varies directly and the equation will be:

y= kx

y=480.x

Keywords: Finding Relationship between x and y

Learn more about finding relationship between x and y at:

#learnwithBrainly

8 0

3 years ago

A bag contains yellow marbles and red marbles,65 in total. The number of yellow marbles is 5 more than 4 times the number of red

Lostsunrise [7]

Let x equal the number of red marbles.
$65 = x + (4x + 5)$
$65 = 5x + 5$
$60 = 5x$
$12 = x$
$65 - 12 = 53$
53 yellow marbles.

3 0

3 years ago

Write 2.3181818 as a mixed number

Marina CMI [18]

We convert 2.3181818 to fraction as follows:

Let x = 2.3181818 . . . . . (1)

as can be seen, the repeating digits are 18

Multiply both sides of equation (1) by 1,000 to get
1,000x = 2318.1818 . . . . . (2)

Also, multiply both sides of equation (1) by 10 to get
10x = 23.181818 . . . . . (3)

Subtract equation (3) from equation (2) to get
990x = 2,295

Thus,
$x= \frac{2,295}{990} =2 \frac{7}{22}$

5 0

3 years ago