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Evaluate the expression for r = 5.
2r2 − 10r + 40 + 2r =

Answer:

Step-by-step explanation:

[tex]2d+4d-9-7\\\\d =5[/tex]

Substitute ; d= 5 into the given equation

[tex]2(5)+4(5) -9-7\\\\Follow\:the\:PEMDAS\:order\:of\:operations\\\\10 +20 -9-7\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:\:\\\\10+20 =30\\\\=30-9-7\\\\30-9=21\\\\=21-7\\\\21-7\\=14[/tex]

The value of the expression 2d + 4d - 9 - 7 is 14 if the value of d is 5 after plugging d = 5 in the equation.

It is defined as the combination of constants and variables with mathematical operators.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

It is given that:

The expression:

= 2d + 4d - 9 - 7

Plug d = 5 in the above expression:

= 2(5) + 4(5)- 9 - 7

The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

= 10 + 20 - 9 -7

= 30 - 16

= 14

Thus, the value of the expression 2d + 4d - 9 - 7 is 14 if the value of d is 5 after plugging d = 5 in the equation.

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Answer:

s=555

Step-by-step explanation:

Answer:

When a figure is scaled by a scale factor greater than 1, the copy is larger than the original. When the scale factor is less than 1, the copy is smaller. This means that triangles and are scaled copies of each other.

Step-by-step explanation:

Answer:

z = - 6 - 14x

Step-by-step explanation:

Given

z - 7x(- 2) = - 6 , that is

z + 14x = - 6 ( subtract 14x from both sides )

z = - 6 - 14x

Answer: If you trying to find the distance [tex]d=\sqrt{16}[/tex] or 4. If you trying to find midpoint its MP= (-3,2)

Step-by-step explanation:Distance formula[tex]d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{2})^{2} }[/tex]

[tex]d=\sqrt{(-2-(-4))^{2}+(3-1})^{2} }[/tex] -2-(-4)=2     3-1=2

[tex]d=\sqrt{2^{2}+2^{2} }[/tex] 2 squared is 4

[tex]d=\sqrt{4+4}[/tex]  equals [tex]d=\sqrt{16 }[/tex] or 4 simplyfied

Midpoint formula [tex]MP= (\frac{x_{1}+x_{2} }{2}), (\frac{y_{1}+y_{2} }{2} )[/tex]

[tex]MP= (\frac{-4+-2 }{2}), (\frac{1+3 }{2} )[/tex] -4+-2=-6     1+3=4

[tex]MP= (\frac{-6}{2} ), (\frac{4 }{2} )[/tex] -6/2= -3    4/2= 2

[tex]MP= (-3,2)[/tex]

Answer:Slope:  − 2 y-intercept:  ( 0 , 5)x 0 5/2 y 5,0

Step-by-step explanation:

Answer:

Step-by-step explanation:

(7.3 X 10^6) + (2.4 X 10^7)

= 31.3 × 10^6

or 3.13 × 10^7

(4 X 10^4)/ (31.3×10^7)

=1.28 × 10^-3

Answer:

I think it's 2 to 4. i advise you should xheck utube for tue explanation

Answer:

=4225x4−81y4−130x2+36y2−3

Step-by-step explanation:

Answer:

55.87

Step-by-step explanation:

Answer:

46 messages.

Step-by-step explanation:

The top got cut off a bit, it says "Make the same/similar inequality as the other problem:"

Answer:

To solve for the problem above, let x be the regular price of the shoe.

1/2x is the one-half price of the shoe then we add 6 for the pair of socks,

1/2x + 6, then lola has 32 left so we add that too, 1/2x + 6 + 32 = 75. The total amount of lola spent is 75 - 32, which is 1/2x + 6.

Step-by-step explanation:

Answer:

it would be D me child

Step-by-step explanation:

Answer:

Step-by-step explanation:

1/3 and 1/4

LCM=12

1/3*4/4 and 1/4*3/3

4/12 and 3/12

4/12*10/10 and 3/12*10/10

40/120 and 20/120

=33/130,38/120.............etc

Answer:

3/20

Step-by-step explanation:

Answer:

Zoe has 6 cherries

Answer:

6

Step-by-step explanation:

if Ann had 4 cherries on her Ice Cream and it says that Ann had 2 fewer that Zoe. So Zoe should have 6 cherries.

[tex]4+2=6[/tex]

Answer:7

Step-by-step explanation:

7 beacause she is far away

Answer:

unknown

Step-by-step explanation:

we need more stuff to go off of

Answer:

Step-by-step explanation:

The statement that is not true (an exception is easily created) is C

Draw a 1 by 4 rectangle.

Underneath it draw a 2 by 2 rectangle.

They both have the same area (4 units) but they are not congruent. The corresponding lengths are not equal and that is another condition that must be met for there to be congruence. There are many others.

Draw a 2 by 2 square.

draw a triangle with a base of 1 and a height of 8. These two figures have the same area, but they don't even have the same number of sides.

C is simply not true.

Answer:

0.1875

Step-by-step explanation:

Answer:

the part you crossed out makes it look like a person's eyes and eye brows lol

Step-by-step explanation:

Answer:

Step-by-step explanation:

C

Rewrite one side (or both) by combining like terms which is option(C)

Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal.

2x – 1 + 3x = 0

5x – 1 = 0

To get Equation B from A, we would rewrite one side (or both) by combining like terms

2x – 1 + 3x = 0

5x – 1 = 0

This is Equation B

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Answer:

The answer is 0.5 since we are rounding to the tenths place

Answer:

0.47 or 0.468 whichever one is better

Step-by-step explanation:

just divide with a calculator

To find the zero of a function, we have to set f(x) equal to 0

0 = -3x + 1

Subtract 1 from both sides.

-1 = -3x

Divide both sides by -3

1/3 = x

Answer:

2 in the hundredths place is greater

Step-by-step explanation:

2 in the hundredths place is 10 times the thousands place

Step-by-step explanation:

78 + 119 + 105 + (180 - x) = 360

482 - x = 360

482 - 360 = x

122 = x

x = 122°

Answer:

it is trapezium and all angles value is 360 degree and three angles values are given then let unknown angle be y and add three angles then subtract value from 360 degree then add the value with x and subtract that value from 180 degree

Answer:

Addition Property of Equality

If a, b, and c are any real numbers, and a(b + c) = ab + ac, then (b = c) a = ba + ca.

Answer:

7°

Step-by-step explanation:

Since, Point D is in the interior of angle ABC.

Therefore,

[tex]m\angle ABC = m\angle ABD + m\angle DBC\\

20x - 15 = 6x - 5 + x + 16\\

20x - 15 = 7x + 11\\

20x - 7x = 11+15\\

13x = 26 \\ x = \frac{26}{13} \\ x = 2 \\ \\ m\angle ABD = (6x - 5) \degree \\ m\angle ABD = (6 \times 2 - 5) \degree\\ m\angle ABD = (12 - 5) \degree \\ \huge \red{ \boxed{ m\angle ABD = 7\degree}}[/tex]