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3 years ago

Find the value of Z. A)7 B)9 C)11 D)12

Mathematics

2 answers:

Gala2k [10]3 years ago

4 0

As per the isosceles triangle theorem, if the two base angles are congruent then the legs are also congruent, so we must set the two legs equal to each other:

2z - 15 = 9

Add 15 to both sides:

15 - 15 = 0
15 + 9 = 24

Divide 2 from each side:

2z = 24

2z/2 = z

24/2 = 12

z = 12

Hence, the answer would be D: z = 12

arlik [135]3 years ago

4 0

$2z-15=9\\2z=24\\z=12$

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Please help thank you!!!!!!

Brut [27]

Answer:

The equation of the line is x = 2

Step-by-step explanation:

* It is a coordinate geometry problem.

We need to find the equation of a line with undefined slope.

* The slope is undefined

The line passing through point (2 , 5)

* The rule to find the slope is $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

The slope is undefined if $x_{2}-x_{1}=0$

That means the line passing through points have same x-coordinate

That means the line is vertical

* ∵ The line passing through point (2 , 5)

∵ The slope of the line is undefined

∴ All the points on the line have x-coordinate = 2

∴ The equation of the line is ⇒ x = 2

* The answer is x=2

7 0

3 years ago

What is the completely factored form of t4 − 16?

Mashcka [7]

we know that

A difference of squares problem can be factored as follows:

$a^{2}-b^{2} =(a+b)(a-b)$

in this problem we have

$t^{4}-16$

Applying difference of squares

$t^{4}-16=(t^{2}-4)( t^{2}+4)$

the term

$(t^{2}-4)=(t+2)(t-2)$

substitute

$(t^{2}-4)( t^{2}+4)=(t+2)(t-2)( t^{2}+4)$

therefore

<u>the answer is</u>

$(t+2)(t-2)( t^{2}+4)$

7 0

3 years ago

A bicycle wheel has a circumference of 62 inches. Find the diameter of the wheel. If necessary, round to the tenths

marishachu [46]

Answer:

19.74 inches

Step-by-step explanation:

Given as

Circumference of wheel = 62 inches

AS we know that Circumference (C) = 2× $\pi$ ×R

where R is Radius of circle

so, C = 2 × 3.14 × R

or, 62 = 2 × 3.14 × R

or 62 = 6.28 × R

so, Radius (R) = $\frac{62}{6.28}$

R = 9.872

Now Diameter = 2 × Radius

so, D = 2 × 9.872

Diameter = 19.74 inches Answer

7 0

3 years ago

Read 2 more answers

Two lines that lie in parallel planes are

Alchen [17]

<u>Answer:</u> Parallel.

Two or more lines that lie in the same plane and never intersect. Parallel lines will always have the same slope. Skew lines are lines that are in different planes and never intersect. A transversal is a line that intersects two other lines.

6 0

3 years ago

What is the square root of 348

horrorfan [7]

When u keep dividing and dont get it go up by each number and keep divind by every number until u get it which would be

4 0

4 years ago