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2 years ago

Whats the error? I SOLVED AND CHECKED. Is it correct? Im confused… pls help il will give brainliest

Mathematics

1 answer:

Alchen [17]2 years ago

7 0

Answer:

32 in represents perimeter u added length times width once which would only give half of the rectangle

Step-by-step explanation:

2(3w+8+w) =32

6w+16+2w =32

8w+16 = 32

8w=16

w=2

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Y=-x+1 y=2/3x-4 please answer this!!!!

yawa3891 [41]

Answer:

(x, y) = (-15, -14)

Step-by-step explanation:

y = x+1

y = 2/3x - 4

Next, we will substitute the value of y (first equation) into the second equation.

x+1 = 2/3x - 4

1/3x + 1 = -4

1/3x = -5

x = -15

So, y = -14

3 0

3 years ago

Put a check by the two numbers that are prime numbers

xenn [34]

the answer is 1 2 and 3 because they cant be divided by anything

3 0

2 years ago

Read 2 more answers

Anyone know the answer

vova2212 [387]

Answer:

i have no clue

Step-by-step explanation:

4 0

2 years ago

Zahara constructs 5 mirror frames in 30 minutes. At that rate, how many mirror frames can Zahara make in 9 hours

lord [1]

Answer:

Step-by-step explanation:

I believe it is 90 because when you take 30 minutes plus 30 minutes that makes 1 hour, and when you take 5 plus 5 equals 10. So, that means 10 every hour. So 10 times 9 is 90. Which gives you the answer of 90 mirror frames.

5 0

2 years ago

Read 2 more answers

If (3-4i) (x+yi) = 1 + 0i. The value of x and y is

Black_prince [1.1K]

Step-by-step explanation:

$\textsf{\large{\underline{Solution}:}}$

<h3>Given That:</h3>

$\rm: \longmapsto (3 - 4i)(x + iy) = 1 + 0i$

$\rm: \longmapsto 3(x + iy) - 4i(x + iy)= 1 + 0i$

$\rm: \longmapsto 3x + 3iy - 4ix +4y= 1 + 0i$

On rearranging the terms, we get:

$\rm: \longmapsto (3x + 4y)+ (3y - 4x)i = 1 + 0i$

Comparing both sides, we get:

$\rm: \longmapsto 3x + 4y = 1 --- (i)$

$\rm: \longmapsto 3y - 4x = 0 --- (ii)$

Multiplying (i) by 4, we get:

$\rm: \longmapsto 12x + 16y = 4--- (iii)$

Multiplying (ii) by 3, we get:

$\rm: \longmapsto 9y - 12x = 0 --- (iv)$

Adding equations (iii) and (iv), we get:

$\rm: \longmapsto25y = 4$

$\rm: \longmapsto y =\dfrac{4}{25}$

From (ii), we get:

$\rm: \longmapsto 3y - 4x = 0$

$\rm: \longmapsto 3y = 4x$

$\rm: \longmapsto x = \dfrac{3}{4} y$

$\rm: \longmapsto x = \dfrac{3}{4} \times \dfrac{4}{25}$

$\rm: \longmapsto x = \dfrac{3}{25}$

Therefore:

$\rm: \longmapsto (x,y)= \bigg( \dfrac{3}{25}, \dfrac{4}{25} \bigg)$

★ Which is our required answer.

$\textsf{\large{\underline{More To Know}:}}$

$\rm1.\ i^{4n} = 1$

$\rm2. \ i^{4n+1} = i$

$\rm3.\ i^{4n+2} = -1$

$\rm4.\ i^{4n+3} = -i$

4 0

2 years ago