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2 years ago

I h8 math pls help!!!!!!!!!!!!

Mathematics

2 answers:

Ivahew [28]2 years ago

7 0

Answer:

26 cm²

Step-by-step explanation:

The area of the triangle measuring 7cm by 4cm (including the unshaded part) is:

Area(A) = Length(L) × Width(W)

A = 7cm × 4cm = 28 cm²

Area of the unshaded part = 2 cm × 1 cm = 2 cm²

Area of the shaded shape = Area of the 7 cm by 4 cm rectangle minus the area of the unshaded region = 28 cm² - 2 cm² = 26 cm²

mario62 [17]2 years ago

5 0

Answer:28

Step-by-step explanation:

To find area you need to take the 7 and 4 and multiply them together to get your answer.

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What is the answer to 19=-3a-5

stepan [7]

Answer:

$\fbox{ \huge{ \sf{ a = - 8}}}$

Step-by-step explanation:

$\bigstar{ \sf{ \: 19 = - 3a - 5}}$

$\tt{Step \: 1 \: }$ : Swap the sides of the equation

$\longmapsto{ \sf{ - 3a - 5 = 19}}$

$\tt{Step \: 2 \: }$ : Move 5 to right hand side and change it's sign

$\longmapsto{ \sf{ - 3a = 19 + 5}}$

$\tt{Step \: 3 \: }$ : Add the numbers : 19 and 5

$\longmapsto{ \sf{ - 3a = 24}}$

$\tt{Step \: 4 \: }$ : Divide both sides by -3

$\longmapsto{ \sf{ \frac{ - 3a}{ - 3} = \frac{24}{ - 3}}}$

$\tt{Step \: 4}$ : Calculate

$\longmapsto{ \sf{a = - 8}}$

$\sf ∴ \: the \: value \: of \: a \: is \: - 8.$

$\sf{Hope \: I \: helped !}$

$\sf{Best \: regards !!}$

~ $\sf{TheAnimeGirl}$

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2 years ago

A student has four sticks of wood that measures 3 inches, 4 inches, 5 inches, and 6 inches.Can the student use any three of thes

saw5 [17]

Answer:

Yes, the student can use three of these sticks to make a right triangle.

Step-by-step explanation:

The measure of four sticks = 3 inches, 4 inches, 5 inches and 6 inches.

Now, in a right angled triangle, by PYTHAGORAS THEOREM the three sides of the triangle base, perpendicular and hypotenuse are in the given following relation :

$(Base)^{2} + (Perpendicular)^{2} = (Hypotenuse)^{2}$

Now, here among all four sticks

$(3)^{2} +(4)^{2} = 9 + 16 = 25$

and $25 = (5)^{2}$

So, there exists three sticks of length 3 in, 4 in and 5 inches which satisft Pythagoras Theorem , such that:

$(3)^{2} + (4)^{2} = (5)^{2}$

So, the required length sticks are 3 inches, 4 inches and 5 inches.

Hence, the student use three of these sticks to make a right triangle.

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Step-by-step explanation:

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2 years ago

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ZanzabumX [31]

Answer:

Step-by-step explanation:

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