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3 years ago

Dm de math appareil photo aidee moi svp svpppp

1 answer:

8 0

No idea what language you're talking in, sorry but I only understand English? There is no photo here either.

Please Evaluate?

Thank you.

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How to express the radical using the imaginary unit , i. Please help

Hitman42 [59]

Answer:

± 4i $\sqrt{5}$

Step-by-step explanation:

$\sqrt{-80}$ = $\sqrt{16(5)(-1)}$

= $\sqrt{16}$ × $\sqrt{5}$ × $\sqrt{-1}$

= 4 $\sqrt{5}$ i → [ $\sqrt{-1}$ = i ]

3 0

3 years ago

BRAINLIEST TO THE PERSON THAT ANSWERS FIRST

Oksana_A [137]

Answer:

A repeating decimal can be written as a fraction using algebraic methods, so any repeating decimal is a rational number.

Marco is wrong cuz its not repeating

6 0

2 years ago

Sarihas to read a book for English class by the end of the week.She wants to read at least 200 pages in the first 5days of the w

zzz [600]

200/5 = 40...she should read at least 40 per day to reach her goal

6 0

3 years ago

How do you do this question?

quester [9]

Step-by-step explanation:

F(x) = ∫ₐˣ t⁷ dt

F(x) is the area under f(t) between t=a and t=x. When x=a, the width of the interval is 0, so the area is zero.

F(6) = 0, so a = 6.

F(x) = ∫₆ˣ t⁷ dt

F(6) = ∫₆⁶ t⁷ dt

F(6) = 0

3 0

3 years ago

Solve the system of equations. y = 2x y = x 2 – 15

inn [45]

Answer:

D. (–3, –6) and (5, 10)

Step-by-step explanation:

The system has equations:

$y=2x$ ...(1)

and

$y=x^2-15$ ...(2)

Equate both equations;

$x^2-15=2x$

Rewrite in standard form:

$x^2-2x-15=0$

We factor to obtain:

$(x+3)(x-5)=0$

By the zero product principle;

$(x+3)=0,(x-5)=0$

$\implies x=-3,x=5$

When x=-3, y=2(-3)=-6

This yields the ordered pair (-3,-6).

When x=5, y=2(5)=10

This yields the ordered pair (5,10).

The correct choice is D.

8 0

3 years ago