2 years ago

WHO IS IN K12 7TH...

Mathematics

2 answers:

Zepler [3.9K]2 years ago

8 0

Answer:

Step-by-step explanation:

im in 8th grade so...

dsp732 years ago

4 0

Answer:

.id.k

Step-by-step explanation:

You might be interested in

Mary has borrowed 48 books from the library. This is 22% of all of the books in the library. How many books are in the library?

Ann [662]

Answer:

218

Step-by-step explanation:

ATQ,

22%of total books = 48

Let the total no. of books in library be x.

22/100x=48

x=4800/22

X=218(approximately)

5 0

2 years ago

What are the solutions of the equation (2x + 3)2 + 8(2x + 3) + 11 = 0

Tom [10]

Answer:

$x=\frac{-7-\sqrt{5}}{2}$ or $x=\frac{-7+ \sqrt{5}}{2}$

Step-by-step explanation:

The given equation is

$(2x+3)^2+8(2x+3)+11=0$

Let us treat this as a quadratic equation in $(2x+3)$ .

where $a=1,b=8,c=11$

The solution is given by the quadratic formula;

$(2x+3)=\frac{-b\pm \sqrt{b^2-4ac} }{2a}$

We substitute these values into the formula to obtain;

$(2x+3)=\frac{-8\pm \sqrt{8^2-4(1)(11)} }{2(1)}$

$(2x+3)=\frac{-8\pm \sqrt{64-44} }{2}$

$(2x+3)=\frac{-8\pm \sqrt{20} }{2}$

$(2x+3)=\frac{-8\pm2\sqrt{5} }{2}$

$(2x+3)=-4\pm \sqrt{5}$

$(2x+3)=-4-\sqrt{5}$ or $(2x+3)=-4+ \sqrt{5}$

$2x=-3-4-\sqrt{5}$ or $2x=-3-4+ \sqrt{5}$

$2x=-7-\sqrt{5}$ or $2x=-7+ \sqrt{5}$

$x=\frac{-7-\sqrt{5}}{2}$ or $x=\frac{-7+ \sqrt{5}}{2}$

5 0

3 years ago

A) not similar

inn [45]

Answer:

A) not similar

Step-by-step explanation:

for the triangles to be similar the side lengths must be proportional.

For example:

99/35 should be equal to 121/44 but when we do cross multiplying we see they are not equal therefore the the triangles are not similar.

5 0

1 year ago

ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. Show your work OR give an explaination.

netineya [11]

Answer:

Its B

Step-by-step explanation:

7 0

2 years ago

during a promotional event a sporting good store gives a free t-shirt to every 8th customer and a free water bottle to every ten

sergij07 [2.7K]

Find out what number goes into 8 and 10 then figure out how many times that number goes into 100

7 0

2 years ago

WHO IS IN K12 7TH...​

WHO IS IN K12 7TH...