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2 years ago

Evaluate the algebraic expression 4y + x - w, when w = 12, x = 10, y = 5 and z = 9.

Mathematics

2 answers:

Firlakuza [10]2 years ago

5 0

Answer:

Step-by-step explanation:

simply plug in the given values for the letter and do the math.

4(5) + 10 - 12 = 20+10-12 = 18.

serg [7]2 years ago

3 0

Answer:

Step-by-step explanation:

w=12

x=10

y=5

z=9

4 (5)+10-12

20+10-12

BODMAS

addtition then subtraction

20+10=30

30-12

=18

Brainiest please

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11 Pause

muminat

Answer:

Step-by-step explanation:

Given that:

Batting average = 0.25 after 160 times at bat;

Batting Average = Number of hits / number of times at bat

0.25 = number of hits / 160

Number of hits = 0.25 * 160 = 40

He want batting average to improve to 0.333 ; if he makes hit the next x times at bat ; number of hits is needed to improve batting average

Hence,

New average = number of hits / number of times at bat

0.333 = (number of hits + x) / (160 + x)

0.333 = (40 + x) / (160 + x)

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4 years ago

Find the product of z1 and z2, where z1 = 2(cos 80° + i sin 80°) and z2 = 9(cos 110° + i sin 110°)

nekit [7.7K]

ANSWER

$z_1 z_2=18( \cos( 190 \degree ) + i \sin( 190 \degree) )$

EXPLANATION

The given complex numbers are;

$z_1 = 2( \cos(80 \degree) + i \sin(80 \degree) )$

and

$z_2= 9( \cos(110 \degree) + i \sin(110 \degree) )$

Recall the binominal identity for complex numbers in polar form.

$z_1 z_2=r_1 r_2( \cos( \theta_1 +\theta_2) + i \sin(\theta_1 +\theta_2) )$

We apply this property to obtain,

$z_1 z_2=2 \times 9( \cos( 80 \degree + 110 \degree ) + i \sin(80 \degree + 110 \degree) )$

$z_1 z_2=18( \cos( 190 \degree ) + i \sin( 190 \degree) )$

4 0

4 years ago

Read 2 more answers

What is 98.09% - 97.53% this question has been stumping me for days.

Bas_tet [7]

Answer:

-0.4153

Step-by-step explanation:

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