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alexdok [17]
2 years ago
10

What is the value of -8+4-7+9-2+(-5)

Mathematics
1 answer:
dsp732 years ago
6 0

Answer:

-9

Step-by-step explanation:

-8+4-7+9-2+(-5)

-8+4-7+9-2-5

-8-7-2-5+4+9

-22+13

-9

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Whoever gets it right get s brainlest This figure shows the dimensions of a right triangular prism.
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48

Step-by-step explanation:

8x3x2= 48

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What is the multiplicative inverse of 3/7 ? A) −7/3 B) −3/7 C) 1/7 D) 7/3
vredina [299]

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B

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Find the volume of the composite solid. 12 m I 8 m 4 m 4 m​
umka2103 [35]

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1536

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3 years ago
Simplify the expression:<br><br> 3x (4x-6)<br> —————<br> 2x(3x)
Marina86 [1]

Answer:

=\frac{2x-3}{x}

Step-by-step explanation:

=6x^2\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=\frac{3x\left(4x-6\right)}{2x\cdot \:3x}\\2x\cdot \:3x=6x^2\\=\frac{3x\left(4x-6\right)}{6x^2}\\\mathrm{Cancel\:}\frac{3x\left(4x-6\right)}{6x^2}:\quad \frac{4x-6}{2x}\\=\frac{4x-6}{2x}\\\mathrm{Factor}\:4x-6:\quad 2\left(2x-3\right)\\=\frac{2\left(2x-3\right)}{2x}\\\mathrm{Divide\:the\:numbers:}\:\frac{2}{2}=1\\=\frac{2x-3}{x}

7 0
3 years ago
Solve the problems. Write the complete proof in your paper homework and for online (only) complete the probing statement (if any
Luda [366]

Answer:

Hence proved that m∠AOD = m∠BCD.

Step-by-step explanation:

Given:

A Trapezoid with AC and BD as diagonals with O as intersection point to it.

Four angles formed at A and D are equal.

To Prove:

m∠AOD = m∠BCD

Proof:

Consider a Quadrilateral ABCD as trapezoid with diagonals as AC and BD

(Refer the Attachment).

And AB=CD which means the Quadrilateral ABCD isosceles in nature

i.e. angle A=angle D

Now  

Consider triangle AOD and triangle BCD

Apply sum of all angles of triangle is 180.

And also

m∠2+∠AOD+m∠3=180

∠AOD=180-m∠2-m∠3..............equation(1)

And for Triangle BCD

m∠BCD=180-m∠3-m∠4,.....................Equation(2)

∠A=∠D................ as Quadrilateral is  Isosceles.

i.e.∠2=∠3

That means by transitive property,

∠1=∠4=∠3=∠2

Using this values in above equation(1) we get ,

∠AOD=180-∠3-∠4.......................(3)

Now comparing equation 2 and 3 we get

RHS is equal for both equation that means LHS is also equal .

Therefore ∠AOD=∠BCD

Hence proved.

6 0
3 years ago
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