2 years ago

Give the most descriptive name for

Mathematics

1 answer:

Ipatiy [6.2K]2 years ago

8 0

Answer:

trapezium................

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Write an equivalent expression for 4(2x+5

Verizon [17]

4(2x +5) = (8x + 20)

8x =20 is an equivalent expression

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3 years ago

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Over the last 6 months, Josh wrote 6 checks for a total of $702 to pay his phone bill. His phone bill is the same amount each mo

algol13

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Step-by-step explanation:

702divded by 6=117

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Equivalent to 4^7•4^-5

nekit [7.7K]

Answer:

Step-by-step explanation:

$\text{Use}\ a^n\cdot a^m=a^{n+m}\\\\4^7\cdot4^{-5}=4^{7+(-5)}=4^{7-5}=4^2=4\cdot4=16$

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2 years ago

Use Heron's Formula to find the area of triangle ABC. Round your answer to the nearest whole number.

Scrat [10]

Step-by-step explanation:

use herons formula

√s(s-a)(s-b)(s-c)

where s is the semi perimeter

S=20

and a,b,c are sides of triangle

=√20(20-17)(20-9)(20-14)

=√20.3.11.6

=62.92

nearest whole number is 63

option B is correct

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2 years ago

Find all solutions for the following equations. Write your answers in radians using exact values. (Enter your answers as a comma

sasho [114]

Answer:

Step-by-step explanation:

Given that:

sin2xcos x + cos2xsin x = -1

Recall that;

SInAcosB + cosASinB = SIn (A+B)

SIn (2x +x) = -1

Sin (3x) = -1

$x = \bigg [\dfrac{Sin ^{-1} (-1)}{3} \bigg ]$

$x = \dfrac{\pi}{2} + \dfrac{2 \pi \ k}{3}$

$x = \dfrac{\pi}{2}, \dfrac{7 \pi}{6}, \dfrac{11 \pi}{6}$

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2 years ago