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3 years ago

Find the unknown angle

Mathematics

2 answers:

arlik [135]3 years ago

8 0

Acute is the unknown angle

topjm [15]3 years ago

7 0

525267227727272727272727

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1. If x=3-√3,<br> prove that x²<br> +36<br> x²<br> = x²

valentina_108 [34]

Answer:

we get $x^2=12-6\sqrt{3}$

Step-by-step explanation:

We are given: $x=3-\sqrt{3}$

We need to find $x^2$

Note: Since question is not clear, I am assuming that we need to find $x^2$

Solving:

$x=3-\sqrt{3} \\Taking \ square \ on \ both \ sides\\x^2=(3-\sqrt{3})^2\\$

We know that $(a-b)^2= a^2-2ab+b^2$

Using formula and simplifying

$x^2=(3)^2-2(3)(\sqrt{3})+(\sqrt{3})^2\\x^2=9-6\sqrt{3} +3\\x^2=12-6\sqrt{3} \\$

So, we get $x^2=12-6\sqrt{3}$

3 0

3 years ago

3) Jaidee invests $1,966 in a savings account with a fixed annual interest rate of 2.45% compounded continuously. What will the

Mama L [17]

Answer:

Step-by-step explanation:

6 0

3 years ago

You invest $1,200 in an account that pays an interest rate of 7.25%, compounded continuously.

hammer [34]

The answer is $1,809.00.

Explanation:

To calculate interest rate, you must multiply the decimal version of the percentage by the original number. 7.25% as a decimal is equivalent to 0.0725, so multiplying that by 1,200 = 87. Now we must multiply that by 7 to find the amount after 7 years. The product is 609, or $609. Now we add that amount to the original number (1,200). The sum is 1809, $1,809. Therefore, your total balance after 7 years is $1,809.

Hope I helped and good luck!

6 0

3 years ago

Read 2 more answers

Need help with this one

Aloiza [94]

Answer:

At x intercept, x = 0

2.8(0)+5.7y+5.8=0

y=-5.8/5.7

=-1.02

At y intercept, y=0

2.8x+5.7(0)+5.8=0

x=-5.8/2.8

=-2.07

7 0

3 years ago

Read 2 more answers

Can someone help with this!

svlad2 [7]

Answer:

its option three

Step-by-step explanation:

5 0

3 years ago