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Lyrx [107]
2 years ago
10

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

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

Answer:

7a-21

Step-by-step explanation:

7(a-3)=

7 a-21

Natali [406]2 years ago
4 0

1) Expand by distributing terms

7a+7 x-3

Simplify 7x-3 to -21

7a-21

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The exterior angles of a triangle are 3y0, 4y0 and 5y0.
katovenus [111]

Answer:

i. 30 degrees

ii. 30 degrees

Step-by-step explanation:

The exterior angles of a triangle always add up to 360 degrees. Using this, you can set up the following equation.

3y+4y+5y=360

y=30 degrees

The smallest interior angle corresponds to the largest exterior angle. 5y=5*30= 150. Subtracting this from 180 you get 30 degrees, or the smallest interior angle. Hope this helps!

3 0
3 years ago
Read 2 more answers
C. Find the value of x below:<br> 15.r + 5<br> -2 + 16.
nydimaria [60]

Answer:

7

Step-by-step explanation:

(15x + 5) and (-2 + 16x) represents the measures of corresponding angles.

Measures of corresponding angles are equal.

Therefore,

- 2 + 16x = 15x + 5

16x - 15x = 5 + 2

x = 7

5 0
3 years ago
Convert the expression (5x + 2)(x - 7) from factored form to standard form
tensa zangetsu [6.8K]
We use the FOIL method here. First, Outer, Inner, and Last.

(5x)(x) = 5x^2

(5x)(-7) = -35x

(2)(x) = 2x

(2)(-7) = -14

5x^2 - 35x + 2x - 14

Now combine like terms.

5x^2 - 33x - 14.

This is the right answer because it is now in the form of ax^2 + bx + c
8 0
2 years ago
Read 2 more answers
Charlotte have 36 apple,Dylan have 1 apple and Kevin have 56 apple how many apples are left?
IRISSAK [1]

Answer:

93 apples?

Step-by-step explanation:

36 + 1 + 56 = 93 apples?

5 0
3 years ago
Figure A has a radius of 2 inches. It is dilated by a scale factor of 4 to form figure B. What is the radius of figure B?
snow_lady [41]
Given that figure A with radius of 2 inches is dilated to form figure B, the radius of B will be given by:
Radius B=(radius A)×(scale factor)
but
scale factor=4
thus
Radius of B will be:
2×4
=8 inches
7 0
3 years ago
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