2 years ago

Here goes my 4 question

Mathematics

1 answer:

Bas_tet [7]2 years ago

3 0

The answer is D they are proportional equal to negative 4<span />

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How do I write this in sigma notation?

tamaranim1 [39]

Answer:

$\frac{143}{60}$

Step-by-step explanation:

6 0

3 years ago

Par on a golf course is 72. If a golfer shot rounds of 76, 67, and 75 in a tournament, what will she need to shoot on the final

skelet666 [1.2K]

$\frac{76 + 67+ 75 + x}{ 4} = 72$
x = 70
She will need to shoot a 70

5 0

2 years ago

9.5) ifm Z WZY - 100º and mZ WXY = 50°, calculate m ZWX. Justify your work with properties or definitions. Note: figure may not

masha68 [24]

Answer:

m∠ZWX = 105°

Step-by-step explanation:

Properties of a kite,

1). One diagonal of a kite bisects at least one pair of opposite angles.

2). Diagonals of a kite kite are perpendicular to each other.

In ΔWTZ,

m∠WZT = $\frac{1}{2}(m\angle WZY)$

= $\frac{1}{2}(100)$

= 50°

m∠WTZ = 90° [By second property]

m∠WZT + m∠WTZ + m∠ZWT = 180°

50° + 90° + m∠ZWT = 180°

m∠ZWT = 180° - 140°

= 40°

Similarly, in ΔWTX,

$m(\angle WXT)=\frac{1}{2}(m\angle WXY)$

m(∠WXT) = $\frac{1}{2}(50)$

= 25°

m(∠WTX) = 90°

m∠WTX + m∠WXT + m∠TWX = 180°

90° + 25° + m∠TWX = 180°

m∠TWX = 180° - 115°

= 65°

Since, m∠ZWX = m∠ZWT + m∠TWX

Therefore, m∠ZWX = 40° + 65°

= 105°

7 0

2 years ago

At a lemonade stand, the first cup costs $1.50, and refills cost $0.20 each. If a customer paid $1.90 in total for his first cup

timofeeve [1]

Answer:

the customer got 2 refills

Step-by-step explanation:

$1.50 +20= $1.70+20= $1.90 hope this helps

3 0

2 years ago

N^4+9n^3+18n^2 <br>factor each completely <br>showing steps

arsen [322]

Answer:

n²(n + 3)(n + 6)

Step-by-step explanation:

Take out a common factor of n² from each term

= n²(n² + 9n + 18) ← factorise the quadratic

= n²(n + 3)(n + 6)

4 0

2 years ago