2 years ago

(PLEASE HELP I WILL GIVE BRAINLIEST IF CORRECT (40 POINTS)

Mathematics

1 answer:

Andrews [41]2 years ago

3 0

Answer:

2800 - 4000

Step-by-step explanation:

40 × 70 = 2800

50 × 80 = 4000

You might be interested in

It don’t make no sense

Soloha48 [4]

Yes it does not, i want my free points

6 0

3 years ago

The value of the square root of -4 is not -2 because?

Anarel [89]

A) (-2)² ≠ -4 is your answer

Explanation:

(-2)² = (-2)(-2)

(-2) x (-2) = 4

∴ A) (-2)² ≠ -4

hope this helps

7 0

3 years ago

What is the value of x in the equation-2/5x-2=18

Flura [38]

First we have to isolate the varible

-2/5x-2=18
+2 +2

-2/5x=20

then divide both sides by -2/5 to get x completely by itself

-2/5x=20
------- ---
-2/5 -2/5

x=-50

i hope i've helped!

5 0

3 years ago

Read 2 more answers

Use the angle relationship in the figure below to solve for x. Assume that lines a and b are parallel and the given angles are g

Daniel [21]

9514 1404 393

Answer:

x = 5°

Step-by-step explanation:

The marked angles are "alternate exterior angles," hence congruent.

2x +90° = x +95°

x = 5° . . . . . . . . . . . . subtract (x+90°) from both sides

4 0

2 years ago

Find the value of x for which the graph of y = 3x^2 - 8x + 7 achieves its minimum y-value.

gulaghasi [49]

Answer:

<h3>The y value achieves its minimum at x = 4/3</h3>

Step-by-step explanation:

Given the graph of y to be 3x² - 8x + 7, to get the value of x for which the graph function achieves its minimum y value, we need to find its turning point first.

At the turning point, dy/dx = 0

Given y = 3x² - 8x + 7

$\frac{dy}{dx} = 6x-8\\ at\ turning\ point\ 6x-8 = 0$

$6x = 8\\x = \frac{8}{6}\\ x =\frac{4}{3}$

The y value achieves its minimum at x = 4/3

7 0

3 years ago