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3 years ago

I confused on this one

Mathematics

1 answer:

Simora [160]3 years ago

6 0

I guess the answer is 31 because two sides are the same so 12is the sa,e on the other side and 12+12=24 plus the 7 equals 31cm.

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Isa's calculator displays a number as 7.3579 E8. What is this number in standard form? Enter your answer in the box.

Korolek [52]

When the calculator displays 7.3579 E8. it represents the number
7.3579 x 10⁸ in standard form.

Answer: 7.3579 x 10⁸.

7 0

3 years ago

Read 2 more answers

Amir has a stand where he sells lemonade for $1.00 per cup and packages of chocolate chip cookies for $1.50. If he earns $280 on

nikdorinn [45]

Answer:

160 cups of lemonade and 80 packages of cookies.

Step-by-step explanation:

l = lemonade

c = cookies

l+1.5c=280

2c=l

Substitute.

3.5c=280

Simplify.

c=80

Substitute into the second equation.

l=160.

Plug it back into the equations to check.

3 0

4 years ago

SOMEONE PLEASE HELP ME ASAP PLEASE !!!!

Sergio039 [100]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

Let's find the median!

Step-by-step explanation:

Numbers:

6, 2, 59, 12, 11, 9, 9, 54, 54, 46, 2, 32, 43, 11

In order from least - to - greatest:

2, 2, 6, 9, 9, 11, 11, 12, 32, 43, 46, 54, 54, 59

What is the median of 11 and 12?

<h3>The median of 11 and 12 is 11.5, or 11 - and - a - half.</h3>

I hope this helps!

- sincerelynini

6 0

3 years ago

Read 2 more answers

Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Sever21 [200]

Answer: The correct option is A, i.e., 7.5.

Explanation:

It is given that ABC is a triangle and BD is an altitude.

Since BD is an altitude, therefore the height of the triangle is BD and the base of the triangle is AC.

The distance formula to find the distance between two points is,

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

First, we find BD, where B(-1,4) and D(2,4).

$BD=\sqrt{(2+1)^2+(4-4)^2}=\sqrt{9} =3$

So, the height of the triangle is 3.

Now, we find the value of AC, where A(2,1) and C(2,6).

$AC=\sqrt{(6-1)^2+(2-2)^2}=\sqrt{25} =5$

So, the base of the triangle is 5.

The formula to find the area of a triangle is,

$A=\frac{1}{2}\times {\text{base}}\times {\text{height}}$

$A=\frac{1}{2}\times 5\times 3=\frac{15}{2}=7.5$

Therefore, the area of the triangle is 7.5 unit square and the correct option is A.

6 0

3 years ago

Read 2 more answers

-6x-5y=-6<br>3x+6y=24<br>solve for x and y

zhannawk [14.2K]

Answer:

$x= -4$ and $y=6$

Step-by-step explanation:

$-6x-5y=-6$ -equation 1

$3x+6y=24$ -equation 2

Solving the equation 1 to get the value of

To solve such type of equations that have two unknown variables, find the value of one variable in terms of the other from any one of the equation and put the value in the second equation which will give the value of both the variables

Solving Equation 2 to find x

$3x+6y=24$

$3x=24-6y$

$x=(24-6y)/3 =8-2y$ equation 3

Putting this value of x in the equation 1

$-6x-5y= -6$

$-6(8-2y)-5y= -6$

$-48+12y-5y= -6$

$7y= -6+48$

$7y= 42$

$y= 42/7 = 6$ , $y=6$

Putting the value of y in equation 3 to find the value of x

$x=8-2y= 8-2(6)$

$x= -4$

8 0

4 years ago