What is the first step in evaluating the expression (5 + 8 ÷ 4 × 3)^2 − 7?

Answer:

-21/40, -3/8, 21, 21 3/8, 21 3/40,

Step-by-step explanation:

the answer is:

x = -6

Answer:

x=-3

Step-by-step explanation:

2x (x + 4) -12x

2×-3(-3+4)-12×-3

-6(1)+36

30

Answer:

20 p per pear 10p per peach

Step-by-step explanation:

Hope this helps

Answer:

1 pear costs 20 cents. 1 peach costs 10 cents.

Step-by-step explanation:

x represents pears

y represents peaches

4x + 2y = 1

2x + 3y = 0.7

multiply the second equation by -2 to elimate the x variable

(2x +3y = 0.7) -2 = -4x - 6y = -1.4

add the new equation to the first original one:

4x + 2y = 1

-4x - 6y = -1.4

-4y = -0.4. divide both sides by -4, y = 0.10

plug in y = 10, solve algebraically and get x = 0.20

Lastly, check your work:

4(0.20) + 2(0.10) = 1

2(0.20) + 3(0.10) = 0.7

Answer:  Create equations. Top length=Bottom length

Left side = right side.

Combine like terms and rewrite the equations.  

Use the new equations to create a system of equations to solve for x and y.

Once you have x and y, you can substitute those in the expressions for the lengths of the parallelogram.

You should end up with top and bottom lengths of 10. The sides are 9.

Step-by-step explanation:

3x-5 = 18 -2y . Rewrite as 3x + 2y = 23

x+4 = 21 -3y    Rewrite as  x + 3y = 17

The system of equations is

3x + 2y = 23   and  x + 3y = 17 . To solve by substitution, multiply the second equation by -3   It becomes  -3x-9y= -51  Add the equations so the x terms cancel. Solve for y

3x + 2y = 23

-3x - 9y = -51

0  -7y  = - 28  Divide both sides by -7.   y = 4

Substitute 4 for y,  solve for x

x + 3(4) = 17

x + 12 = 17 . Subtract 12 from both sides   x = 5

Substitute the values of x and y in the expressions

Top: 3x-5    is 3(5) -5  becomes 10

Bottom: 18 -2y  is  18 - 2(4) becomes 10

Left:  x +4   is (5) + 4  becomes 9

Right:  21 - 3y  is  12 -3(4)  becomes 9

Answer: the answer is B

Step-by-step explanation:

Answer:

4/5 is greater

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

we know because the triangle have the same angles

Answer:

no/yes

Step-by-step explanation:

Answer:

23%

im supposed to add more to this so i can submit this so here you go

Answer:

B YOU GOT THIS

Step-by-step explanation:

Answer:

x= -2

Step-by-step explanation:

Answer:

Step-by-step explanation:

You could tell because triangles like this always have a right angle (which is a 90° angle)

If there is a bisector in the middle of the triangle that is perpendicular to the base, then it will be a right angle

Answer:

er i think its 50 ≠ 4

Step-by-step explanation:

...

Answer:

4x+6y<=10

Step-by-step explanation:

The linear inequality that describes the graph is 4x+ 6y ≤ 10.

Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

As, The bold straight line passes through the points (1,1) and (-2, 3).

so, equation of line will be

(y- 1) = (3-1)/ (-2-1) (x-1)

y-1 = 2 / (-3) (x-1)

-3y + 3 = 2x - 2

-3y -2x = -5

If we multiply by 2 both side we get

-6y - 4x = -10

4x+ 6y= 10

So, the required inequality for gray area is 4x+ 6y ≤ 10.

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Answer:

-11x = -48 +15

x = (-48+15) / (-11)

x = -33 / -11

x= 3

hope that help

Step-by-step explanation:

4e88s45etds8sistzerse8rse85t8ss

Answer:

Radius: 1.128  Area: 4

Hope this helps :)

Given:

18% increase followed by a 13% decrease.

To find:

The single percentage equivalent to a 18% increase followed by a 13% decrease.

Solution:

Let a number be 100.

If it is increased by 18% then the number becomes

[tex]Number=100+\dfrac{18}{100}\times 100[/tex]

            [tex]=100+18[/tex]

            [tex]=118[/tex]

Then, it is decreased by 13%.

[tex]Number=118-\dfrac{13}{100}\times 118[/tex]

             [tex]=118-15.34[/tex]

             [tex]=102.66[/tex]

New number is 102.66.

Now, the percentage change is

[tex]\%\text{ Change}=\dfrac{\text{New number - Initial number}}{\text{Initial number}}\times 100[/tex]

[tex]\%\text{ Change}=\dfrac{102.66-100}{100}\times 100[/tex]

[tex]\%\text{ Change}=\dfrac{2.66}{100}\times 100[/tex]

[tex]\%\text{ Change}=2.66\%[/tex]

Therefore, the Single percentage change is 2.66%.

Answer:

Brodie drank 70 milliliters

Step-by-step explanation:

280 divided by 4 equals 70

To check: 70 x 4 = 280

Hence, the Brodie drink [tex]280[/tex] milliliters.

What is the simplification?

Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

Here given that,

Jamie drank four times as much juice as Brodie. Jamie drank [tex]280[/tex]milliliters of juice.

So,

[tex]\frac{280}{4}=70[/tex] millilitres

And, Jamie drank four times as much juice as Brodie

[tex]70[/tex] x [tex]4[/tex] = [tex]280[/tex]

Hence, the Brodie drink [tex]280[/tex] milliliters.

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Answer: 0.0875

Step-by-step explanation: you divide the number by 100

The graph showing a function increasing at a constant rate is graph B.

In order to check the rate of rise of a function in an interval find the value of its derivative at all the points of that interval. If the values of derivatives are increasing then the function is increasing else it is decreasing.

The graphs A and B are given in the problem can be analysed one by one as follows,

Graph A,

In the interval [-∞,0], the slope of the function is decreasing.

And, in the interval [0,∞], the slope is increasing.

Thus, it is not increasing at a constant rate.

Graph B,

The function has the same slope in both the intervals [-∞,0] and  [0,∞], which is positive.

It implies that the function is increasing at a constant rate.

Hence, the function shown in graph B is is increasing at a constant rate.

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Answer:

the building would be 32.5 feet tall.

Step-by-step explanation:

Answer & Step-by-step explanation:

1. (3g−2) (2g+3)

2. 9(x−1)^2

Sorry if wrong ;(

Hope this helps ;)

Answer:

(3g-2)(2g+3)

9(x-1)^2

Hope this helps

Answer:

g= -1.74

Hope this helped :)

Answer:

X=y

x/y+2=3 because

Y+Y+Y=3 so

X=Y+Y+Y=3

Answer:

No se

Step-by-step explanation:

pero okueuekdnfjdbebf

Answer:

The function that is incorrect is the third option, the option where the Domain's 0 is pointing to two Ranges.

Answer:

√113

Step-by-step explanation:

8*8 + 7*7 = c^2

64 + 49 = c^2

√113 =C

Answer:

Y Intercept = (0,8)

x Intercept = (-5,0)

Step-by-step explanation:

Rearrange to y=mx+c

-5y= -40-8x

-5y=-8x-40

Divide both sides by -5

y=8/5x+8

Y Intercept = (0,8)

X intercept; Find x when Y=0

0= 8/5x+8

8/5x = -8

x= -5

Hence;

X Intercept = (-5,0)

Answer:

Step-by-step explanation:

don't understand the question

Answer:

45.6363636 or 45.6

Step-by-step explanation:

Answer:

answer:it is 45.636