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rodikova [14]
3 years ago
10

Solve using order of operations 3(4 + 7) 5*4/2

Mathematics
1 answer:
Serggg [28]3 years ago
4 0

Answer:

330

Step-by-step explanation:

Parenthesis

Exponent

Multiply

Divide

Addition

Subtraction

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19- (1 - 4x) - 9x +30<br>Simplify​
Lapatulllka [165]

19 - (1 - 4x) - 9x + 30 = -5x+48

(Don't forget the negativity symbol before the answer, if it isn't visible. It's not fully visible on my screen.)

6 0
4 years ago
Find the y-intercept of the parabola y = x2 + 6x.<br><br> Can somebody help?
WINSTONCH [101]

Given:

The equation of the parabola is:

y=x^2+6x

To find:

The y-intercept of the parabola.

Solution:

We have,

y=x^2+6x

Putting x=0 in the given equation, we get

y=(0)^2+6(0)

y=0+0

y=0

Therefore, the y-intercept of the parabola is 0. It means the y-intercept of the given parabola is at point (0,0).

6 0
3 years ago
Complete the steps to find the value of x.<br> 72°<br> (7x + 24)
Elis [28]

Answer:

x=6.86°

firstly set them equal

to each other

(7x+24)=72°

subract 24 from both sides:

7x=48°

divide both sides by 7 :

x=6.857.....

this can be rounded to :

x=6.86°

8 0
3 years ago
Please help I will mark you as brainliest
Nezavi [6.7K]

Answer:

7986 m²

Step-by-step explanation:

The figure is a trapezium with area (A) calculated as

A = \frac{1}{2} h (a + b)

where h is the height and a, b the parallel bases

Here h = 66, a = 102 and b = 140, thus

A = \frac{1}{2} × 66 × (102 + 140) = 33 × 242 = 7986 m²

4 0
3 years ago
I will give BRAINLIEST PLS HELP y = x + 1/2 and z = 2x - 3, which of the following is equivalent to y + yz? PLS HELP
STALIN [3.7K]

Answer:

y+yz is: 2x^2-2x-1

Step-by-step explanation:

Given expressions are:

y = x+\frac{1}{2}\\z = 2x-3

The given expressions are polynomials and we have to find the value of y+yz

First of all, we will find the product of y and z

We will use the distribution to find the product.

yz = (x+\frac{1}{2})(2x-3)\\= x(2x-3)+\frac{1}{2}(2x-3)\\= 2x^2-3x+x-\frac{3}{2}\\=2x^2-2x- \frac{3}{2}

The next step is to add y and yz

y+yz = (x+\frac{1}{2})+(2x^2-3x-\frac{3}{2})\\Combining\ like\ terms\\= 2x^2+x-3x+\frac{1}{2} -\frac{3}{2}\\=2x^2-2x + \frac{1-3}{2}\\=2x^2-2x+\frac{-2}{2}\\=2x^2-2x-1

The answer is not one of the options which i assume might be a typing mistake.

Hence,

y+yz is: 2x^2-2x-1

6 0
3 years ago
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