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3 years ago

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Two numbers given in certain radix x are (55)x and (64)x . If we add this two numbers, the result is (130)x. What is the radix x

?

1 answer:

wlad13 [49]3 years ago

4 0

the answer is x = 9.

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pantera1 [17]

Answer:

0.39

Step-by-step explanation:

39% can be written as 39.% to emphasize that the decimal is to the right of the last digit in a whole number. When converting from percent to decimal, you divide by 100 which has the same effect as moving the decimal two places to the left. Therefore, 39.% becomes 0.39.

3 0

3 years ago

Read 2 more answers

Question 2(Multiple Choice Worth 5 points) (02.01 LC) Simplify negative 8 over 3 divided by negative 2 over 6.. −8 −4 4 8

Nana76 [90]

Answer:

8

Step-by-step explanation:

we have

$\frac{(-8/3)}{(-2/6)}$

we know that

To divide fractions take the reciprocal (invert the fraction) of the divisor and multiply the dividend

so

$(-\frac{8}{3})(-\frac{6}{2})$

Multiply the numerators and denominators

$(\frac{8*6}{3*2})$

$(\frac{48}{6})=8$

8 0

3 years ago

100 POINTS+BRAINLIEST 8TH GRADE MATH PT 5: WRITE THE EQUATION OF A LINE- this one was strange because the slope is supposed to b

Finger [1]

Answer:

$\textsf{b.} \quad 3x+5y=2$

Step-by-step explanation:

<u>Define the given points</u>:

$\textsf{let}\:(x_1,y_1)=(4,-2)$

$\textsf{let}\:(x_2,y_2)=(-1,1)$

Use the <u>slope formula</u> to determine the slope of the line:

$\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{1-(-2)}{-1-4}=\dfrac{1+2}{-1-4}=-\dfrac{3}{5}$

Use the <u>point-slope formula</u> to determine the equation of the line.

$\implies y-y_1=m(x-x_1)$

Substitute the found slope and point (4, -2):

$\implies y-(-2)=-\dfrac{3}{5}(x-4)$

$\implies y+2=-\dfrac{3}{5}(x-4)$

Multiply both sides by 5:

$\implies 5(y+2)=-3(x-4)$

Expand the brackets:

$\implies 5y+10=-3x+12$

Add 3x to both sides:

$\implies 5y+10+3x=-3x+12+3x$

$\implies 3x+5y+10=12$

Subtract 10 from both sides:

$\implies 3x+5y+10-10=12-10$

$\implies 3x+5y=2$

4 0

2 years ago

Read 2 more answers

Help me pls pls pls

iVinArrow [24]

Answer:

Step-by-step explanation:

A "greater than or equal to" sign means that your line will have a closed, or filled in circle. Knowing this, we can eliminate all of the open circle options.

If our numbers are negative, a number "greater than" a negative would be closer to or positive. I would choose the filled in circle pointing towards the right, given this information.

And for solving the inequality:

-3x (greater than or equal to) -18

/-3 /-3

x (less than or equal to 6)

4 0

3 years ago

The symbol for a radioactive nuclide is superscript 131 subscript 56 upper b a.. which statement is correct? the atomic number o

Andreas93 [3]

In a given radioactive nuclide, we can easily find the mass number, mass of proton and neutron by subtracting the mass of proton from the mass number. The mass number, mass of proton and mass of neutron of the radioactive nuclide are 131, 56 and 75 respectively.

<h3>Properties of an atom</h3>

Data;

Mass Number = 131
Atomic Number = 56

In a given atom, the mass number of an atom comprises of the mass of proton and mass of neutron. The atomic number of the element or atom is equal to the mass of the proton.

In this case,

mass number = mass of proton + mass of neutron.

$131=56 + neutron\\neutron = 131 - 56\\neutron = 75$

From the calculation above, the mass number, mass of proton and mass of neutron of the radioactive nuclide are 131, 56 and 75 respectively.

Learn more on mass of an element here;

brainly.com/question/496676

#SPJ1

5 0

3 years ago