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Ann [662]
3 years ago
13

Solve the inequality 3 + 9x >4(x+7) pls help

Mathematics
1 answer:
alexandr402 [8]3 years ago
8 0

Answer:

x<5

Step-by-step explanation:

the greater sign will firstly be changed to = for better solving so we obtain

3+9x=4(x+7)by opening bracket

3+9x=4x+28

9x-4x=28-3

5x=25

divide all through by 5x

we obtain

x=5

the greater sign change here

which is x<5

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N is an integer.<br> Write the values of n such that -15 &lt; 3 ≤ 6<br><br> Help please ❤️❤️
Alex17521 [72]

Answer:

-4,-3,-2,-1,0,1

Step-by-step explanation:

First, doublepound and simplify it.

-15<3n

3n<6

Solve:

-5<n

n<2

Compound:

-5<n<2.

So the values are -4,-3,-2,-1,0,1

Hope this helps plz hit the crown :D

8 0
3 years ago
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(18 x 4) * 5 =<br> 22 x (6 x 10) =<br> 15 x (4 x 20) =
zhenek [66]

Answer:

(18 x 4) * 5 = 360

(18 x 4) * 5 = 1320

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Step-by-step explanation:

7 0
3 years ago
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Twice a number is equal to negative four. Which equation could be used to find the number? 2n = 4 2n = -4n 2n - 4 2n = -4
Pepsi [2]
<span>Twice a number is equal to negative four :
2n = -4

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4 0
3 years ago
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I have a question and I cant seem figure it out. It says( Triangle ABC is a right triangle. Angle B is the right angle, side A i
pychu [463]

Answer:

you need to draw a triangle of given dimensions

Step-by-step explanation:

if B is right angle triangle then you can assume that either AB or BC is base and other one is perpendicular. So that makes AC hypotenuse

so let's assume BC is base of 6 cm. so draw a base of 6 cm line , name it BC

then draw a 90 degree angle on B keeping BC as Base . now length of perpendicular would be 4.5 cm. this perpendicular would be AB

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8 0
3 years ago
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kotegsom [21]

answer:

40°

explanation:

100 + 40 + 40 = 180 (sum of all the interior angles of a triangle)

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3 years ago
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