3 years ago

can someone help me please

Mathematics

1 answer:

kotegsom [21]3 years ago

4 0

Answer:

i think its b

Step-by-step explanation:

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A-5-B when A=9 and B=-4

Fed [463]

Answer:

Step-by-step explanation:

(Refer to picture)

Plug in the value of A and the value of B into the expression

3 0

3 years ago

If a+b = 7, and a² +b²=25<br>then ab = ?

Rama09 [41]

a2+b2=25

or, (a+b)^2-2ab=25

or, (7)^2-2ab=25 [a+b=7]

or, 49-25=2ab

or, 24/2=an

•°• ab=12....

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3 years ago

Rewrite the equations using a negative exponent!! ill give brainliest, any random or incomplete answers will be reported!!

vesna_86 [32]

Answer:

11. $x^{-2}$

12. $m^{-3}$

13. $(x+2y)^{-4}$

14. $(x+3y)^{-2}$

15. $(x+y)^{-3}$

16. $(2x+3y)^{-6}$

17. $(-3m-9)^{-3}$

18. $x^{-4}$

Step-by-step explanation:

In all of them you just subtract the bottom exponent from the top exponent.

5 0

2 years ago

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Find the area of the shaded circle.give your answer in 3 significant numbers

DENIUS [597]

Answer:

116 cm²

Step-by-step explanation:

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shaded area = external area - internal area

= π × 6.5² - π × 2.3²

= π( 42.25 - 5.29)

= π × 36.96 ≈ 116 cm²

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3 years ago

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Solve for x. 7x-3/8 = 6x-5/8 x=1 , x= -1 , x= 1/4 , X= -1/4.

Contact [7]

Answer:

-1/4

Step-by-step explanation:

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2 years ago

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￼can someone help me please

can someone help me please