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Helen [10]
3 years ago
13

(7 x 18 + 45) : 3 x 2 what is it please?​

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
7 0

The Answer Is 171 : 6

Hope This Help's

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(x - 5)(5x + 2) = 0 (please help)
barxatty [35]

Answer:

x=-5

Step-by-step explanation:

please tell me if im wrong lol

7 0
3 years ago
Read 2 more answers
6x-3=3x+12<br>x= <br>What is the value of x in this equation​
goldenfox [79]

Answer:

x = 5

Step-by-step explanation:

6x - 3 = 3x + 12

-3x       -3x

_____________

3x - 3 = 12

    +3    +3

_____________

3x = 15

15 divided by 3 = 5

x = 5

You can double check this by replacing x with (5)

If it is right both sides should equal the same

6(5) - 3 = 3(5) + 12

30 - 3 = 15 + 12

27 = 27

This would prove that x = 5

7 0
3 years ago
Read 2 more answers
ZN
solmaris [256]

Given tangent, ZN, to the circle and the arc \widehat{ZMB} = 280°, we have that

the angle formed by the chord BZ and the tangent ZN, ∠BZN is 50°

<h3>Which method can be used to find ∠BZN?</h3>

The given parameters are;

A tangent to the circle O = ZN

m \widehat{ZMB}} = \mathbf{280^{\circ}}

Required:

Angle ∠BZN

Solution;

Please find attached the drawing of the circle and tangent

From the drawing, we have;

∠BOZ = 360° - 280° = 80°

ΔBOZ is an isosceles triangle, which gives;

∠BZO = ∠ZBO

\angle BZO = \dfrac{(180^{\circ}- 80^{\circ}) }{2} = \mathbf{50^{\circ}}

∠OZN = 90° (by definition of a tangent)

∠OZN = ∠BZO + ∠BZN

∠BZN = ∠OZN - ∠BZO

Which gives;

∠BZN = 90° - 40° = 50°

  • The measure of angle ∠BZN =<u> 50°</u>

Learn more about tangents to a circle here:

brainly.com/question/14561226

4 0
2 years ago
Distribute and simplify:<br> 7 (2x - 4) + 2 (3x + 1)
Alenkinab [10]
7(2x-4)+2(3x+1)\\\\[(7*2x)+(7*-4)]+[(2*3x)+(2*1)]\\\\(14x-28)+(6x+2)\\\\14x+6x-28+2\\\\\\20x-25
3 0
3 years ago
A school ordered 3 large boxes if board markers. After giving 15 markers to each of 3 teachers, there were 90 markers left. How
Elis [28]

Answer:

45 markers were in each box.

Step-by-step explanation:

To solve the problem, the total number of markers must be calculated and then divided by the number of original large boxes.

The number of markers is calculated as follows:

90 left over, 15 for each teacher and there are three teachers, that is, 15 * 3 = 45

That is: 90 + 45 = 135 markers in total.

Therefore per box would be 135/3 = 45 markers were in each box.

8 0
3 years ago
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