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Alex
4 years ago
8

Help on 3, 4 and 5 !!

Mathematics
1 answer:
MAVERICK [17]4 years ago
6 0
3.c
4.c
5.b
3 and 5 are factoring and you should learn to do it.
4 is simplifying
to factor use FOIL its an acronym and it would be easier if you look up a video on youtube for it
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4a + 6b= 10 2a - 4b =12 what does 12a=
mixer [17]
4a + 6b = 10
2a - 4b = 12...multiply by -2
----------------
4a + 6b = 10
-4a + 8b = - 24 (result of multiplying by -2)
------------------add
14b = - 14
b = -14/14
b = -1

2a - 4b = 12
2a - 4(-1) = 12
2a + 4 = 12
2a = 12 - 4
2a = 8
a = 8/2
a = 4

so 12a = 12(4) = 48 <==
3 0
4 years ago
What is the distributive property for 6x83
Oksana_A [137]

Answer:

498

Step-by-step explanation:

6 × 83

Using distiributive property

We can solve the expression by using a method called decomposing the multiplier.

= 6 × (80 + 3)

= 6 × 80 + 6 × 3

= 480 + 18

= 498

8 0
3 years ago
A dentist is making packages of toothbrushes and toothpaste for his patients He has 12 toothbrushes and 18 tubes of toothpaste E
bearhunter [10]

Answer:

The dentist can make 6 packages using all toothbrushes and tubes of toothpaste

Hope this helps:)

8 0
2 years ago
Read 2 more answers
Write an equation in slope-intercept form for the
Novay_Z [31]

Answer:

y=-x-7

Step-by-step explanation:

Read Fiss's answer, they did it correctly

3 0
3 years ago
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If a 5-foot tall man casts a shadow of 12 feet when standing on level ground, then the distance from the top of his head to the
m_a_m_a [10]

Answer:

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Step-by-step explanation:

you can use the Pythagorean Theorem to solve this problem because the man standing on the ground forms a 90 degree angle

5² + 12² = c²

25 + 144 = c²

169 = c²

c = √169 which is 13

6 0
3 years ago
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