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2 years ago

I have took five trys to publish this

Mathematics

1 answer:

Scorpion4ik [409]2 years ago

8 0

Answer:

Step-by-step explanation:

because its a right triangle plus i did this in 7 and 8 grade

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Plzz help me!!!

labwork [276]

Answer:

Can you add a picture or visual model if there is one?

Step-by-step explanation:

6 0

2 years ago

To get on the top players list , don needs to have a minimum average score of 225 after playing four games. His scores on his fi

Black_prince [1.1K]

Average must be 225 or more
4 games so
$\frac{score1+score2+score3+score4}{4} \geq 225$
score1=192
score2=214
score3=250
score4=?
so
$\frac{192+214+250+?}{4} \geq 225$
$\frac{656+?}{4} \geq 225$
times both sides by 4 to clear fraction
656+?≥900
minus 656 from both sides
?≥244

min score is 244

8 0

2 years ago

Read 2 more answers

(3x-4y)^2-(3x-4y)(3x+4y)

zheka24 [161]

Answer:

$-24xy + 32y^2$

Step-by-step explanation:

Hello!

We can use the special binomial product formulas:

$(a + b)^2 = a^2 + 2ab + b^2$
$(a + b)(a - b) = a^2 - b^2$

<h3>Simplify</h3>

$(3x - 4y)^2 - (3x - 4y)(3x + 4y)$
$(9x^2-24xy+16y^2) - (9x^2 - 16y^2)$
$9x^2 - 9x^2 - 24xy + 16y^2 + 16y^2$
$-24xy + 32y^2$

The simplified form is $-24xy + 32y^2$

6 0

1 year ago

Hey, if you’re doing school right now just know you’ll get through it! I believe in you!!! With that being said, what is 5+3? (L

MArishka [77]

Hi! 5+3=8. Have a great day

4 0

3 years ago

A single card is drawn from a standard 52-card deck. Let B be the event that the card drawn is a black, and let F be the event

Galina-37 [17]

Answer:

0.6154 or 61.54%

Step-by-step explanation:

The joint probability P(B′∪F) is given by the sum of each individual probability minus the intersection between both probabilities (red face cards).

$P(B'\cup F) = P(B')+P(F)-P(B'\cap F)$

The inverse probability of a card being black is also the probability of a card being red, which is 26 in 52. There are 12 face cards in a 52-card deck, 6 of which are not black, therefore:

$P(B'\cup F) = \frac{26}{52} +\frac{12}{52}-\frac{6}{52}\\P(B'\cup F) = \frac{32}{52} = \frac{8}{13} =0.6154$

5 0

2 years ago