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2 years ago

90° Find mZR. A. 30° B. 60° C. 120° D. 180° (2x) to P 90° S

Mathematics

2 answers:

svp [43]2 years ago

7 0

Answer:

120°

Step-by-step explanation:

Angles in a quadrilateral add to 360°, so

90+90+x+2x=360

180+3x=360

3x=180

x=60

So, angle R measures 120°.

Monica [59]2 years ago

4 0

The correct would be 120°

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fgiga [73]

Answer:

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Step-by-step explanation:

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2 years ago

1. What is the solution of n² – 49 = 0? (1 point)

maks197457 [2]

Answer:

1. $n=\pm7$

2. $x=\pm7i[tex]3.[tex]\pm 12x =a$

4. 22

Step-by-step explanation:

1. $n^2 - 49 = 0$

$n^2 =49$

$n= \sqrt{49}$

$n=\pm7$

2. $x^2+64 = 0$

$x^2 =-64$

$x= \sqrt{49}$

$x=\pm7i[tex]3. Area of square = [tex]a^{2}$

Where a is the side

We are given an area o square = $144x^{2}$

So, $144x^{2}=a^{2}$

$\sqrt{144x^{2}}=a$

$\pm 12x =a$

4. We are given that the solution of quadratic equation -9 and 9

So, equation becomes:

$(x+9)(x-9)=0$

$x^2- 81=0$

So, in the given equation $x^2 + z = 103$

z should be the number from which if we subtract 103 so we get 81

Substitute z = 22

$x^2 + 22 = 103$

$x^2 + 22 -103=0$

$x^2 -81=0$

Thus the value of z is 22

8 0

3 years ago

Read 2 more answers

We would like to estimate the proportion of uf students who owns a scooter to within 1% of the truth, with 95% confidence. We be

Varvara68 [4.7K]

Answer: 3458

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2 years ago

I'm confused. Can someone help me out with this problem step-by-step using the P = 2L + 2W formula?

german

We can't use P = 2L + 2W because the sides have different lengths.

P = a + b + c + d

a = x

b = 2x

c = 2x - 2

d = x + 5

P = x + 2x + (2x - 2) + (x + 5)

P = <u>x + 2x + 2x</u> - 2 <u>+ x</u> + 5

P = 6x + 3

if x = 4:

P = 6 · 4 + 3

P = 24 + 3

P = 27

3 0

3 years ago

Help :c!!!!!!!!!!!!!!!!!

Gnoma [55]

Answer:

-4

Step-by-step explanation:

Use the formula y2-y1/x2-x1 to find the answer to a slope next time! :D

3 0

3 years ago