All categories

2 years ago

What value of n makes the equation -2n+1.8=3.2 true?

Mathematics

1 answer:

kotykmax [81]2 years ago

7 0

_1.4

Step-by-step explanation:

its probably rit....

You might be interested in

Carpenters use a tool called a speed square to help them mark right angles . A speed square is a right triangle

Ronch [10]

Answer:

A. $Area = \frac{1}{2}(2x^2 - 2x - 24)$

B. $Area = 3.75 in^2$

Step-by-step explanation:

A. $Area = \frac{1}{2}bh$

Where,

$b = 2x + 6$

$h = x - 4$

Plug in the values to get a polynomial that represents the area of the tool

$Area = \frac{1}{2}(2x + 6)(x - 4)$

$Area = \frac{1}{2}(2x(x - 4) + 6(x - 4)$

$Area = \frac{1}{2}(2x^2 - 8x + 6x - 24)$

$Area = \frac{1}{2}(2x^2 - 2x - 24)$

B. To find area, when x = 4.5 in, plug in the value of x into the equation for the area of the tool.

$Area = \frac{1}{2}(2(4.5)2 - 2(4.5) - 24)$

$Area = \frac{1}{2}(2(20.25) - 9 - 24)$

$Area = \frac{1}{2}(40.5 - 9 - 24)$

$Area = \frac{1}{2}(7.5)$

$Area = 3.75 in^2$

8 0

3 years ago

Please help or i am grounded

Dahasolnce [82]

Answer:

$x=140$

Step-by-step explanation:

Do not get grounded.

An angle at a point is 360°.

So, $x+120+70+30=360$

$x+220=360$

$x=140$

3 0

2 years ago

The lines in the graph of part A don't intersect at two whole numbers on the coordinate grid. Estimate the values of the solutio

mariarad [96]

Answer:

The solution lies at approximately (4.25,6.5).

Step-by-step explanation:

The estimate is pretty close for both equations. For the first equation, the estimate results in a value that is only 0.2125 units away from the constant. For the second equation, the estimate results in a value that is only 0.25 units away from the constant.

5 0

2 years ago

What is the slope of this graph?

fredd [130]

The slope of the graph is 1/2

5 0

2 years ago

Read 2 more answers

A third of a number is 21. What is the number?

Firdavs [7]

Answer: 63

Step-by-step explanation: 21+21+21