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Mariana [72]
3 years ago
7

What’s the measure of XYZ?

Mathematics
2 answers:
bonufazy [111]3 years ago
6 0

(1) y + z = 130

(2) x + y = 98

IrinaVladis [17]3 years ago
4 0
It should be half of the arc so it’s 34.
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A number decreased by 6 gives twice the number
alexgriva [62]

Answer:

I think it's 4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
3x^2+ 4x + 5 for x = -2
Alexus [3.1K]
The answer is 33
3(-2)^2+4(-2)+5
-6^2+ (-8) + 5
36 + (-8) + 5
28+5
33
7 0
3 years ago
How can knowing how to represent proportional relationships in different ways be useful to solving problems
Anna35 [415]

Answer:

  appropriately writing the proportion can reduce or eliminate steps required to solve it

Step-by-step explanation:

The proportion ...

  \dfrac{A}{B}=\dfrac{C}{D}

is equivalent to the equation obtained by "cross-multiplying:"

  AD = BC

This equation can be written as proportions in 3 other ways:

  \dfrac{B}{A}=\dfrac{D}{C}\qquad\dfrac{A}{C}=\dfrac{B}{D}\qquad\dfrac{C}{A}=\dfrac{D}{B}

  Effectively, the proportion can be written upside-down and sideways, as long as the corresponding parts are kept in the same order.

I find this most useful to ...

  a) put the unknown quantity in the numerator

  b) give that unknown quantity a denominator of 1, if possible.

__

The usual method recommended for solving proportions is to form the cross-product, as above, then divide by the coefficient of the variable. If the variable is already in the numerator, you can simply multiply the proportion by its denominator.

<u>Example</u>:

  x/4 = 3/2

Usual method:

  2x = 4·3

  x = 12/2 = 6

Multiplying by the denominator:

  x = 4(3/2) = 12/2 = 6 . . . . . . saves the "cross product" step

__

<u>Example 2</u>:

  x/4 = 1/2 . . . . we note that "1" is "sideways" from x, so we can rewrite the proportion as ...

  x/1 = 4/2 . . . . . . written with 1 in the denominator

  x = 2 . . . . simplify

Of course, this is the same answer you would get by multiplying by the denominator, 4.

The point here is that if you have a choice when you write the initial proportion, you can make the choice to write it with x in the numerator and 1 in the denominator.

8 0
3 years ago
Pizza World has a specialty cheese pizza that can be cut into 10 slices, and they have a specialty pepperoni pizza that can be c
dedylja [7]
16/10=1.6 so the smallest number of combos would be 1.
3 0
3 years ago
Evaluate the expression when c=28 and d=7.<br> C+ 49 over d
Ne4ueva [31]

Answer:

11

Step-by-step explanation:

\frac{c + 49}{7}  \\  =  \frac{28 + 49}{7} \\  =  \frac{77}{7} \\  = 11

<h2><em>OladipoSeun</em><em>♡˖꒰ᵕ༚ᵕ⑅꒱</em></h2>

6 0
2 years ago
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