Solve 7x - 9 = 28 + 4(x-1)

A. x= -11
B. x= 11
C. x= 3
D. x= -3

Answer: B, D

Step-by-step explanation:

A parallelogram is a quadrilateral with 2 pairs of parallel sides, so if there are no parallel sides, it can't be a paralellogram.

D is true by the definition of a parallelogram.

Answer:

-6

Step-by-step explanation:

So, this problem wants you to multiply 5x+1 with 2x-3 and place it in ax^2 + bx + c form and add a. b, and c all together.

So, let's start by multiplying the expressions together

( 5x + 1 )( 2x - 3 ) = 5x ( 2x - 3 ) + 1(2x - 3)

                           = 10x^2 - 15x + 2x -3

                           = 10x^2 - 13x -3

There, we have our answer of 10x^2 - 13x - 3

So, a = 10, b = -13, and c = -3

a + b + c = 10 -13 - 3

              = -6

Your welcome for the answer! If you have any questions, please ask them in the comments section of this answer! If you could mark this answer as the brainliest, I would greatly appreciate it!

Answer:

1.ABD =~ ACD (SSS)

2.ABD =~ CBD (ASA)

3.FGH =~ KJI (SAS)

4.BEA =~ CED (SAS)

5.LMP =~ LMN (ASA)

Answer:

  A.  5

Step-by-step explanation:

The triangle will be a right triangle when the side lengths satisfy the Pythagorean theorem: the sum of the squares of the legs is equal to the square of the hypotenuse.

  (x +1)^2 +x^2 = (√61)^2

  x^2 +2x +1 +x^2 = 61 . . . eliminate parentheses

  2x^2 +2x = 60 . . . . . . .subtract 1, collect terms

  x^2 +x -30 = 0 . . . . . divide by 2, subtract 30

  (x +6)(x -5) = 0 . . . . factor the quadratic

  x = -6 or +5

The solution is x = 5.

_____

Side lengths cannot be negative. Solution values are values of x that make the factors zero. x+6=0 when x=-6, for example.

Answer:

(-2,11) (0,3) (2,-5) (4,-13)

Step-by-step explanation:

used desmos calculator

# Figure 1

△UVS ≅ △EON [tex]\bold\green{[congruent \: triangle]}[/tex]

# Figure 2

△GHO ≅ △CAT [tex]\bold\green{[congruent \: triangle]}[/tex]

# Figure 3

△ACB ≅ △EFD [tex]\bold\green{[congruent \: triangle]}[/tex]

# Figure 4

△PRQ ≅ △VWX [tex]\bold\green{[congruent \: triangle]}[/tex]

Answer:

1715= 1/3 x 3.14 x r x r x 63

= 65.94 x r^2

÷65.94

26.01 = r^2

Square root

Radius is 5.1

1080 = 1/3 x 3.14 x 5.1^2 x h

1080 = 27.22 x h

÷27.22

39.67 = h

(Haven't been actually rounding up in my calculation, when I divided.)

Check:

1/3 x 5.1^2 x 39.67 x 3.14 = 1079.968146.

So, height is about 39.67cm

Hope this helps!

Answer:

y = -2x + 9

Step-by-step explanation:

I'm going to use the points

(1,7) and (4,1)

1-7/4-1 = -2 = m

y - 7 = -2 (x - 1)

y - 7 = -2x + 2

y = -2x + 9

Pls let me know when u got the answer

Answer:

36

Step-by-step explanation:

I just did math. I don't know if its right though. good luck and sorry if its wrong.

Answer:

length and width of the photo are: w = 6cm l = 8cm

Step-by-step explanation:

Area = 168cm^2

Area = w • l

168 = (x + 3 + 3) • (x + 2 + 3 + 3)

168 = (x + 6) • (x + 8)

expand

168 = x^2 + 14x + 48

subtract 168 from both sides

0 = x^2 + 14x - 120

simplify

0 = (x - 6) • (x + 20)

x = 6 or -20

since we are dealing with a measurement of a physical object x > 0

x = 6cm

w = x = 6cm

l = x+2 = 8cm

Answer:

b=a-3

Step-by-step explanation:

seventeen minus three gives 14, 14 minus 3 gives 11 and so on.

Answer:

3840

Step-by-step explanation:

1.12 times 25 is 28

1.28 times 3000

Answer:

If

P(x)

is a polynomial with integer coefficients and if

is a zero of

P(x)

(

P() = 0

), then

p

is a factor of the constant term of

P(x)

and

q

is a factor of the leading coefficient of

P(x)

Step-by-step explanation:

Hope this helps

Answer: A.

Step-by-step explanation:

Answer:

Convert 0.16 Kilometers to Meters (km to m) with our conversion calculator and conversion tables. To convert 0.16 km to m use direct conversion formula below.

0.16 km = 160 m.

You also can convert 0.16 Kilometers to other Length (popular) units.

Step-by-step explanation:

hope this helps~

The formula for acceleration is final speed - initial speed/time.

26 - 18 = 8

8/15= .533 m/s

Answer:

1/2(8*8)5

1/2* 320

ans= 160

is this answer is right??

Step-by-step explanation:

soln;

b1 = 5m

b2 = 8m

h = 8m

now,

a = 1/2(b1+b2)h

  = 1/2(5+8)8

  = 52 cm^2

Answer:

A. 6

Step-by-step explanation:

a^2+b^2= c^2

a^2+64=100

a^2=36

a= square root of 36

= 6

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

While plotting the plotting the point remember to start from origin.

J(5, 10)

Move right 5, then up 10

I (1,9)

Move right 1, then up 9

H(6, -9)

Move right 6, then down 9

G(-6, 8)

Move left 6, then up 8

F(9, 0)

Move right 9

E(-6, 0)

Move left 6

D(-8, -4)

Move left 8, then down 4

C(5, 0)

Move right 5

B(-1, -1)

Move left 1, then down 1

A(-8, -1)

Move left 8, then down 1

Answer:

y = -3x² - 3x + 6

Step-by-step explanation:

main formula: r×(x² - (a + b)x + ab) = y

r×(x² - (-2 + 1)x -2×1) =y

r×(x² +x -2) = y

by using the point (0,6) →

r×(0² + 0 -2) = 6

r×-2 = 6

r= -3

so

y= -3x² -3x +6

Answer:

x=54

Step-by-step explanation:

3x-52=2x+2

3x-2x =52 +2

Half of its original value=

[tex]\frac{1350}{2} \\ =675[/tex]

Years for the television set to be worth half of its original value=

[tex]\frac{675}{2}\\ =4.0909...[/tex]

≈ 4.1

To find a line perpendicular to the original line, we must set the new slope as the negative reciprocal of the original slope, 2/5.

So the slope of the perpendicular line is -5/2

Now using the point slope form, we have the slope -5/2  and (3,6)

    [tex]y- 6 = \frac{-5}{2}(x-3)\\y-6 =\frac{-5}{2} x + \frac{15}{2} \\y = \frac{-5}{2} x + \frac{15}{2} + 6\\y= \frac{-5}{2} x + \frac{15}{2} + \frac{12}{2} \\y = \frac{-5}{2}x +\frac{27}{2}[/tex]

Hope that helps!

20³ = 20 x 20 x 20. That is equal to 400 x 20 = 8000

=8000

Answer:

15s

Step-by-step explanation:

s+4. + s +4. + s+7 =15s

Answer:

1.75 bags of dog food.

Step-by-step explanation:

7/4 = 1.75

Each dog gets 1.75 bags of dog food.

Have a great day!

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The inequality that shows the temperature in Melbourne is 20°F ≤ x ≤ 100°F

An inequality is an expression that shows the non equal comparison of two or more variables and numbers.

Let x represent the temperature in Melbourne.

The highest temperature ever recorded there was 109°F, hence x ≤ 109°F.

Also, the lowest temperature ever recorded there was 20°F, hence x ≥ 20.

From both statements:

20°F ≤ x ≤ 100°F

The inequality that shows the temperature in Melbourne is 20°F ≤ x ≤ 100°F

Find out more on inequality at: https://brainly.com/question/24372553