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Nookie1986 [14]
3 years ago
12

What is 4(a5+7)+6(b7-5)

Mathematics
1 answer:
Andrej [43]3 years ago
4 0
4a5+28+6b7-30
4a5+6b7-2<—- this is a to the power of 5 , b to the power of 7
(Is that 5a or a to the power of 5 )
20a+28+42b-30
20a+42b-2<—— this is 5a , 7b
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Which graph represents the solution set of -2y &gt; 7x + 4?
Firdavs [7]

The equation of a line in point-slope form is expressed as:

y = mx + b

  • m is the slope of the line
  • b is the y-intercept

Given the inequality -2y > 7x + 4, this can also be expressed as:

-2y > 7x + 4

y < -7/2x -4/2

y< -7/2x - 2

This shows that the line will be a dashed line and cuts the y-axis at y= -2

Learn more on inequality graph here: brainly.com/question/11234618

4 0
2 years ago
The mass of Mars is 6.42x10-23 kilograms. The mass of mercury is 3.3x10-23 kilograms. What is the combined mass in scientific no
Paraphin [41]

  • <em>combined mass in scientific notation can be written as</em> 97.2×10^{-24}  kg

  • Scientific notation can be regarded as a way of writing very large as well as  very small numbers.

Mars of mass= (6.42x10^{-23} kg )

Mercury= (3.3x10^{-23} kilograms)

Then we add together

(6.42x10^{-23} )+ (3.3x10^{-23}) kilograms.

= 9.45 × 10^{-24} kilograms

Therefore, combined mass in scientific notation can be written as 97.2× 10^{-24} kg

Learn more at : brainly.com/question/1705769?referrer=searchResults

8 0
3 years ago
What is 2.343 rounded to the nearest tenth
elena-s [515]
I'm pretty sure it's 2.3
3 0
3 years ago
Read 2 more answers
5.2x+8+2.1x-3 which is an equivalent expression by combining like terms A. 5.2x+8+2.1x-3 B. 5.2x+5+2.1x C 13.2x-0.9x D 7.3x+5
satela [25.4K]

Answer: 7.3x + 5

Step-by-step explanation:

For us to solve the question, we have to solve 5.2x+8+2.1x-3 and the answer gotten will allow us know the equivalent expression.

= 5.2x+8+2.1x-3

= 5.2x + 2.1x + 8 - 3

= 7.3x + 5

Therefore, the correct answer is 7.3x + 5

7 0
3 years ago
Solve the system of equations: <br> x-y=4<br> 4x-7z=24<br> 4y+z=8
mart [117]

Answer:

Solve for x, y, and z. 1st Equation: 2x + 2y + 4z = 48. 2nd Equation: 2x + 9y + 7z = 105. 3rd Equation: x + 4y + z = 37. Subtract the 2nd Equation from the 1st Equation. This will eliminate the variable “x”.

Step-by-step explanation:

4 0
3 years ago
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