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2 years ago

Draw a square and find it's area with to side=5cm

Mathematics

1 answer:

Mademuasel [1]2 years ago

8 0

Answer:

area=l×b

a=(5×5)×(5×5)

a=25×25

=625

Step-by-step explanation:

all sides are equal =5

so we multiply all the sides by 5

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What is equivalent to the expression (x+3)(x-7)+(x+8)(x+3)

MakcuM [25]

Answer:

$2x^2+7x+3$

Step-by-step explanation:

$(x+3)(x-7)+(x+8)(x+3)$

$(x^2-4x-21)+(x^2+11x+24)$

$x^2-4x-21+x^2+11x+24$

$2x^2+7x+3$

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3 years ago

The diagram below shows a circular pizza with a diameter of 12 inches. The pizza is in a square box with side lengths of 14 inch

saw5 [17]

Answer:

Step-by-step explanation:

Area of box = 14^2 = 196 in^2

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3 years ago

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Leni [432]

Answer:

w=10

Step-by-step explanation:

-2=-(w-8)

2=w-8

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6 0

3 years ago

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Prove tan(x - (π / 4)) = (sin x – cos x) / (cos x + sin x) by filling in the reasons in the table below.

Mrac [35]

No way to know what reasons you're supposed to choose from...

By definition of tangent,

$\tan\left(x-\dfrac\pi4\right)=\dfrac{\sin\left(x-\frac\pi4\right)}{\cos\left(x-\frac\pi4\right)}$

The angle sum identities give

$\tan\left(x-\dfrac\pi4\right)=\dfrac{\sin x\cos\frac\pi4-\cos x\sin\frac\pi4}{\cos x\cos\frac\pi4+\sin x\sin\frac\pi4}$

$cos\dfrac\pi4=\sin\dfrac\pi4=\dfrac1{\sqrt2}$ , so we can cancel those terms to get

$\tan\left(x-\dfrac\pi4\right)=\dfrac{\sin x-\cos x}{\sin x+\cos x}$

as required.

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3 years ago

Write in slope intercept for slope being -5/7 and passes through (-4,-5)

frutty [35]

Answer:

y = -5/7x - 55/7

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

Step 1: Define

Slope <em>m</em> = -5/7

Random point (-4, -5)

y = -5/7x + b

Step 2: Find y-intercept <em>b</em>

-5 = -5/7(-4) + b

-5 = 20/7 + b

b = -55/7

Step 3: Write linear equation

y = -5/7x - 55/7

4 0

3 years ago

Draw a square and find it's area with to side=5cm​

Draw a square and find it's area with to side=5cm