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prisoha [69]
4 years ago
7

Please help . tjjhhhhhhhh

Mathematics
2 answers:
natka813 [3]4 years ago
7 0

Answer:

19 -  8√3

Step-by-step explanation:

(-4 + √2)^2

= (-4)^2 + 2(-4)(√3) + √3)^2

= 16 - 8√3 + 3

= 19 -  8√3

Crank4 years ago
6 0

Answer:

D

Step-by-step explanation:

note that (\sqrt{3} )² = 3

Given

(- 4 + \sqrt{3} )² = (- 4 + \sqrt{3})(- 4 + \sqrt{3})

Expand using (a + b)² = a² + 2ab + b²

= (- 4 )² + 2(- 4\sqrt{3} ) + ( \sqrt{3} )²

= 16 - 8\sqrt{3} + 3

= 19 - 8\sqrt{3}

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The product of two consecutive odd integers is 72. Write a quadratic equation to find the integers,
zimovet [89]

<u>Answer:</u>

x^2 + x - 72 = 0

<u>Explanation:</u>

We are given product of two consecutive odd integers is equal to 72.

Let one integer be x , then since these are consecutive and odd so the other integer will be equal to x + 1.  

Their product is equal to 72. So,

x * (x + 1) = 72

=> x^2 + x = 72

=>  x^2 + x - 72 = 0 is the required quadratic equation.

5 0
3 years ago
EASY Work!! Please look at the picture and yes it’s easy for other people but not me for people asking.
Keith_Richards [23]

Answer:

7()=11

8()=42

I could barely see the answer for number 9 sorry :(

Step-by-step explanation:

the 7() is 2(3)+5

2(3)=6

6+5=11

Question (8)

c^2+3a x b

c(6)^2+ 3(3) x 2/3

36+9 x 2/3

36+6=42

7 0
3 years ago
Read 2 more answers
Find the sum or difference: 2.8 - -5.1
Travka [436]
2.8-(-5.1)

-(-5.1)=5.1

2.8+5.1= 7.9

Is this what you were asking?

3 0
4 years ago
Read 2 more answers
Write an equation in slope-intercept form for the line with y -intercept 3 and slope 2/5.
IceJOKER [234]
Answer: y = 2/5x + 3
8 0
2 years ago
Shannon poured 1 1/2 a punch into each of 5 glasses. how much total punch in cups did Shannon pour?
Arlecino [84]

Answer:

7 1/5

Step-by-step explanation:

You said that she poured 1 1/5 pouches in each cup. There are 5 cups, so multiply 1 1/5 by 5.

(e.g)

1 1/5+1 1/5= 3 because 1+1=2 & 1/2+1/2=1 so you add them and get 3

Do that twice and you get 6

then you have 1 one more cup left so add 1+6=7 then add the half 7+1 1/2=7 1/2

Your Welcome

6 0
3 years ago
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