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kakasveta [241]
3 years ago
7

Solve z^2-2z-35=0 using the zero product property

Mathematics
1 answer:
Sveta_85 [38]3 years ago
3 0
Well z=5 and z=-7 hope this is the correct answer

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4)) Solve for r.<br> 10' = 1,000<br> r=
Bumek [7]
10 times 100 is 1000
7 0
3 years ago
Plz help I’ll mark brainliest
timurjin [86]

Answer:

Step-by-step explanation:

Using Pythagoras Theorem, hypotenuse = 5

h = \sqrt{a^{2}+ b^{2}

h = \sqrt{9+16 }\ = \sqrt{25}\ = 5

sin x = height / hypotenuse = 3 / 5

cos y = base / hypotenuse = 3 / 5

sin x = cos y = 3 / 5

7 0
3 years ago
Read 2 more answers
PLEASE HELP, 40 POINTS!!!!!!!!!!!!!!!!!!!
34kurt
Your answer is going to be 7.8m.
6 0
2 years ago
Alyssa needs 7 5/8 inches of ribbon for one project and
WITCHER [35]

Answer:You are correct but you do not need to round it, the inches of ribbon is short by 0.75 inches. Hope this helps you, have great day!

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Help I will be marking brainliest!!!
Keith_Richards [23]
<h3>Answer:  A.  18*sqrt(3)</h3>

=============================================

Explanation:

We'll need the tangent rule

tan(angle) = opposite/adjacent

tan(R) = TH/HR

tan(30) = TH/54

sqrt(3)/3 = TH/54 ... use the unit circle

54*sqrt(3)/3 = TH .... multiply both sides by 54

(54/3)*sqrt(3) = TH

18*sqrt(3) = TH

TH = 18*sqrt(3) which points to <u>choice A</u> as the final answer

----------------------

An alternative method:

Triangle THR is a 30-60-90 triangle.

Let x be the measure of side TH. This side is opposite the smallest angle R = 30, so we consider this the short leg.

The hypotenuse is twice as long as x, so TR = 2x. This only applies to 30-60-90 triangles.

Now use the pythagorean theorem

a^2 + b^2 = c^2

(TH)^2 + (HR)^2 = (TR)^2

(x)^2 + (54)^2 = (2x)^2

x^2 + 2916 = 4x^2

2916 = 4x^2 - x^2

3x^2 = 2916

x^2 = 2916/3

x^2 = 972

x = sqrt(972)

x = sqrt(324*3)

x = sqrt(324)*sqrt(3)

x = 18*sqrt(3) which is the length of TH.

A slightly similar idea is to use the fact that if y is the long leg and x is the short leg, then y = x*sqrt(3). Plug in y = 54 and isolate x and you should get x = 18*sqrt(3). Again, this trick only works for 30-60-90 triangles.

4 0
2 years ago
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