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IgorC [24]
3 years ago
14

I need help with this question please

Mathematics
1 answer:
Lana71 [14]3 years ago
6 0

Answer:

I) 23

K) 96

J) 77

Step-by-step explanation:

All angles of a triangle equal up to 180

6x+4x-3+x+7=180

11x+4=180

11x=176

x=16

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Anyone know this answer
dem82 [27]

Answer:

Step-by-step explanation:

1 is 60 2 i 60 and 3 is 61 ;)

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3 years ago
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Oil prices are projected to increase by 100% by next June. A quart of oil currently costs $2.45. What is the projected cost of a
lisov135 [29]

Answer:

4.9

Step-by-step explanation:

100% of 2.45 is 2.45.

We add 2.45 + 2.45 which is <u>4.9. </u>

Can I get brainliest?

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3 years ago
What is the measure of x? <br> A. 36°<br> B. 72°<br> C. 144°<br> D. 360°
lutik1710 [3]
This angle will be smaller than 108*. So when we know it will be multiplied by 2 C and D are automaticly marked off.

A or B.  36 times 2 = 72  72 times 2 = 144.

If we look at the angles they are less than 90* so our answer would be A. 36*.

Hoped I helped!

7 0
4 years ago
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What is a<br> decomposition reaction?
yaroslaw [1]

Answer:

11-6√3 = a -b√3

where a=11 and b =6

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given

      \frac{5+2\sqrt{3} }{7+4\sqrt{3} }

Rationalize

=    \frac{5+2\sqrt{3} }{7+4\sqrt{3} } X \frac{7-4\sqrt{3} }{7-4\sqrt{3} }

=    \frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{7^{2} -(4\sqrt{3})^{2}  }

=  \frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{49-16(3)  }

= \frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{1  }

<u><em>Step(ii):-</em></u>

<em>Multiply</em>

<em>     </em>{(5+2\sqrt{3})(7-4\sqrt{3} ) }

=  5 × 7 - 5×4√3 + 2√3 ×7 - 2√3 × 4√3

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6 0
3 years ago
30 POINTS Which is an x-intercept of the graph of the function y=cot(3x)?
Allisa [31]

Answer:

x=\frac{\pi}{6}

Step-by-step explanation:

Choices aren't given, so i will solve this equation and find the first positive x-intercept angle.

First, x-intercept means the x-cutting point of the graph. This occurs when y = 0. So we will solve the equation for x. Shown below:

y=Cot(3x)\\Cot(3x)=0\\ArcCot(Cot(3x))=ArcCot(0)\\3x=ArcCot(0)

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3 years ago
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