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riadik2000 [5.3K]

3 years ago

10

Manny and Emma are entering a long jump competition at their school. Manny can jump 4/5 of the distance Emma can jump. Manny can

jump 40 inches. How far can Emma jump?

1 answer:

valina [46]3 years ago

5 0

50 inches 4/5*x=40

x=40/(4/5)

x=40*5/4=200/4=50 x=50 inches

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Y = 4x – 5<br> y = 2x + 3<br> Is (4, 11) a solution of the system?

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Answer:

(4,11) not answer for the first one

but correct answer for the second

Step-by-step explanation:

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3 years ago

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What is the probability of drawing a black ace followed by a heart out

Verdich [7]

Correct option C) 0.98%

<u>Step-by-step explanation:</u>

We know that , there are 2 black ace cards out of 52 cards in a deck & 13 hearts out of 52 cards . Here we have to tell What is the probability of drawing a black ace followed by a heart out of a deck when the cards aren't replaced . Let's find out:

Firstly , a black ace is drawn , so probability :

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Now , A heart is drawn out of 51 cards ( as one black ace is already drawn !):

⇒ $P(Heart) = \frac{13}{51}$

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Therefore , Correct option C) 0.98%

7 0

3 years ago

Solve:<br><br> a.x3+x2-8x - 12x+2<br> b. x3-4x2-3x + 18x-3<br> c. x2 + 4x + 4<br> d. x2 - 6x + 9

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<h2>Steps:</h2>

So firstly, this function is asking us to divide f(x) by g(x) so let's set that up as such:

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$(\frac{f}{g})(x)=\frac{x^2-x-6}{1}\times \frac{x+2}{x-3}$

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Next, factor x² + 2x and -3x - 6 separately. Make sure that they have the same quantity on the inside of the parentheses:

$(\frac{f}{g})(x)=\frac{x(x+2)-3(x+2)}{1}\times \frac{x+2}{x-3}$

Now you can rewrite it as:

$(\frac{f}{g})(x)=\frac{(x-3)(x+2)}{1}\times \frac{x+2}{x-3}$

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$(\frac{f}{g})(x)=\frac{(x-3)(x+2)^2}{x-3}$

Next, divide:

$(\frac{f}{g})(x)=(x+2)^2$

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A good tip: $(x+y)^2=x^2+2xy+y^2$

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4 years ago

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Step-by-step explanation:

It will be correct trust me

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3 years ago

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gulaghasi [49]

Answer:

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Step-by-step explanation:

Let the score she needs to get be = x

We now have to take the mean of all the five subjects <em>(including x)</em> and equate it to the least score she can have to get a B grade.

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$354+x = 425$

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3 years ago