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Lyrx [107]
3 years ago
10

Use the distributive property to expand this expression: 7(a - 3) =

Mathematics
2 answers:
Daniel [21]3 years ago
7 0

Answer:

7a-21

Step-by-step explanation:

7(a-3)=

7 a-21

Natali [406]3 years ago
4 0

1) Expand by distributing terms

7a+7 x-3

Simplify 7x-3 to -21

7a-21

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Donna read 18 out of 30 pages in her book.What percent of the book did she read?​
inysia [295]

Answer:

60

Step-by-step explanation:

18 /30 is .6. So the answer would be 60 percent

6 0
3 years ago
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Find the solution in slope-intercept form y+7=-3(x-1) and 3x+y=-4
Svetach [21]

Answer:

The slope intercept form of both given equations is : y =  - 3 x - 4.

Step-by-step explanation:

Here, the given equations are:

y +7 = -3 ( x - 1 )

and 3 x + y = - 4

Now,the SLOPE INTERCEPT FORM of any given equation is given as:

y = m x + C : here, C = Y - intercept, m = Slope

Consider equation (1):

y +7 = -3 ( x - 1 )    ⇒ y + 8 = - 3 x  + 3

or, y = -3x + 3 - 7 = -3x - 4

 ⇒ y =  -3x  -4

Hence, the slope-intercept form of the given equation is y =  -3x  -4.

Consider equation (2):

3 x + y = - 4    ⇒ y  = -4  - 3 x

 ⇒ y =  -3 x  - 4

Hence, the slope-intercept form of the given equation is y =  -3x  -4.

6 0
3 years ago
Which motion does the vector show?
Hatshy [7]
Right one unit and up ten units. Hope this helps!
3 0
3 years ago
What is the value of n ??????????
lyudmila [28]

Answer:

it's b 59° because it's at the side

4 0
3 years ago
6 m
dimulka [17.4K]

Answer:

51.63m^3

Step-by-step explanation:

The figure is made up of a rectangle, triangle and a semi circle

Area of the figure = Area of triangle + rectangle + semicircle

Area of the triangle = 1/2 * base * height

Area of the triangle = 1/2 * 3 * 5

Area of the triangle = 15/2

Area of the triangle = 7.5m^3

Area of the rectangle = Length * Width

Area of the rectangle = 6 * 5

Area of the rectangle = 30m^2

Area of the semicircle = πr²/2

Area of the semicircle = π(3)²/2

Area of the semicircle = 3.14(9)/2

Area of the semicircle = 3.14 * 4.5

Area of the semicircle = 14.13m^2

The area = 30 + 14.13+7.5

Area of the figure = 51.63m^3

7 0
3 years ago
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