I really need help please

Mathematics

1 answer:

lesya692 [45]3 years ago

5 0

Answer:

43.13

Step-by-step explanation:

We can tell that the right corner of the triangle is 90 degrees.

The sum of the degrees inside of a triangle is 180

so 90 + 27 = 117

180 - 117 = 63

so we get out angles

27,90,63

Next we can use the law of sines to find the height.

Law of sines: side/sin(opposite angle)= side/sin(opposite angle)

So we get the opposite angle of the side given which would be 90

And we get the ratio: 95/sin(90) = x/sin(27)

We solve for x and get 43.1

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lisabon 2012 [21]

Answer:

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6 0

3 years ago

Solve the equation. 8x2 – 4 = 28

Flura [38]

Hello,

Your answer would be 2, -2.

$8x^2 - 4 = 28$

$8x^2-4+4=28+4$

$8x^2 = 32$

$\frac{8x^2}{8}= \frac{32}{8} 
$

$x^2 = 4$

x = +/4

x = 2 or x = -2

2 , -2 would be the answer! :)

Mark Brainliest if this helped you :)

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3 years ago

Read 2 more answers

What is 2x times x squared?

tresset_1 [31]

We want to multiply the monomial $2x$ by the monomial $2x^2$ .

Remember that to multiply monomials we need to use the laws of exponents; in this case, the law for multiplying powers with the same base. The rule says that, when you multiply powers of the same base, you just need to add the exponents: $(a^m)(a^n)=a^{m+n}$ , $(x^2)(x^4)=x^{2+4}=x^6$ . Also, is worth pointing out that the exponent of a variable with no exponent is 1: $x=x^1$ .

Remember that we also need to multiply their coefficients , which are the numbers that multiply the variables; again, variables with no numbers have a coefficient of 1, so $x=1x$ . Multiply coefficients is easy, you just need to multiply them as you usually do with everyday numbers.