Help please! The formula is A = 1/2 BH I believe, I'm just a bit confused on what to do after! Thanks :)

Answer:

Step-by-step explanation:

1.)

3x=3

x=1

2+y=0

y=-2

solution: (1,-2)

2.)

6y = -36

y = -6

-4x+12 = -12

-4x=-24

x = 6

solution: (6,-6)

Answer:

Top: x=1, y= -2

Bottom: x= 6, y= -6

Step-by-step explanation:

Top:

Isolate x for y: 2(3+y) + y = 0  

Simplify: 6+3y=0

Isolate y for 6+3y=0: y = -2

For x= 3 + y: x = 1

Bottom:

Isolate x for : -4x - 2y= -12:     x= [tex]\frac{-6 + y}{2}[/tex]

Simplify: 6y+ 12 = -24

Isolate y for 6y+ 12 = -24: y = -6

For x= [tex]-\frac{-6 -6 }{2} = 6[/tex] : x = 6

The concentration of the mixture made by mixing 6 fl. oz. of a 20% alcohol solution and 4 fl. oz. of a 5% alcohol solutions is 14%

An equation is an expression used to show the relationship between two or more numbers and variables.

Let x represent the concentration of the mixture, hence:

(6 * 20%) + (4 * 5%) = x * (4 + 6)

1.2 + 0.2 = 10x

x = 0.14 = 14%

The concentration of the mixture made by mixing 6 fl. oz. of a 20% alcohol solution and 4 fl. oz. of a 5% alcohol solutions is 14%

Find out more on equation at: https://brainly.com/question/2972832

Answer:

every time x increases by 1 and y increases by .5

Step-by-step explanation:

Answer:

1x=.5

Step-by-step explanation:

i dont know for sure but i hope this helps

Answer:

Step-by-step explanation:

Add all sides up

Answer:

how old are the cats that live in Kyle's neighborhood?

Step-by-step explanation:

Because the question is  statistical which mean you will get more then one answers

Answer:

70

Step-by-step explanation:

An isosceles triangle has two equal sides, and the angles add up to 180 degrees. 180 - 70 - 40 = 100, therefore the answer is 70

Answer:

A (Elise needs 7 quarts of ice cream)

Step-by-step explanation:

Okay so we know that Elise is serving 42 people, since she's making 42 chocolate ice cream sundaes.

Since it takes 3 quarts to serve 18 people, we know that the amount of people divided by 6 will equal the quarts.

So 42 people divided by 6 equals 7 quarts.

i hope this helps !!

Answer: A and C

Step-by-step explanation: USA TEST PREP

Answer:

C

Step-by-step explanation:

Please don't hate if wrong.

Answer:

1. slope: 4. y-intercept: (0,-2)

2. slope: 0.6. y-intercept: (0,-4)

3. -1. y-intercept: (0,13)

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

my answer would be a

Step-by-step explanation:

a=2 /3=0.667

B=14/9=1 5/9 =1.556

c)=13/2 =6  1/2=6.5

d=5/ 8=0.625

Answer:

number A

the template does not have the needed triangle for the other numvers

Answer:

84

Step-by-step explanation:

14x6

Answer:

hui

Step-by-step explanation:

84

Answer:

5(2c - 3) = 3(3c - 5)

=> 10c - 15 = 9c - 15c

=> 10c+15c = 9c + 15c

=> 25c = 24

=> c = 24/25

Answer:

c=0

Step-by-step explanation:

Remove the parentheses

10c - 15 = 9c - 15

10c = 9c

Move the variable to the left

10c-9c=0

Collect like terms

then solve it and you'll get c=0

Hope this helps.

Answer:

a

Step-by-step explanation:

Answer:

t = -5/8

Step-by-step explanation:

1.) Add 15 to each side canceling it out on the left

8t - 15 = 32t

    +15    +15

2.) Subtract 32 from each side canceling it on the right

8t = 32t +15

-32t  -32t

3.) Divide each side by 24 to get the variable

-24t = 15

-24t/-24t = 15/-24t

4.) Simplify by 3

5/-8

t = -5/8

Answer:

254.34 in^2

Step-by-step explanation:

C = 18(3.14)

C = 56.52

A = C^2/4(3.14)

A = (56.52)^2 = 3194.5104

A = 3194.5104/4(3.14) = 254.34

Hope this makes sense

Answer:254.34

Step-by-step explanation:if you get it rong im sorry

Answer:

The first graph is misleading because all it is is just bigger. However the second graph is the same 80 million ton barrel twice. This means that its 80 +80 which indeed is 160 million tons.

Step-by-step explanation:

Answer:

F) = 79.27cm

G) = 50.8cm

Step-by-step explanation:

For F, add the area of the rectangle (8*5 = 40) to the area of the half circle ((pi * 5^2)/2 = 39.27) to get the total (79.27)

For G, add the area of the square (5.5*5.5 = 30.25) to the area of the trapezoid (3 * (8.2+5.5)/2 = 20.55) to get the total (50.8)

Hopefully this helps - let me know if you have any questions!

Answer:

This really isn't hard so for Allie the table is 2010/1 2011/2 2012/3 2013/4 2014/5

and for Jenna it is 2010/10 2011/11 2012/12 2013/13 2014/14 that is all for part A so for part B if Allie works for 6 years then Jenna will have worked 15

I hoped this helped you please give heart and 5 stars :-)

Answer:

25 units

Step-by-step explanation:

The longest side is 12.

The two other sides of the triangle = (3 sqaured + 6 squared) (9+36) the square root of 45 is about 6.7.

6.7 x 2 = 13.4

13.4 + 12 = 25.4

25.4 rounded to the nearest unit is 25

Answer:

25

Step-by-step explanation:

Used an online triangle calculator<3 lol

Answer:

80 students.

Step-by-step explanation:

30% = 24 students

10%     = 24/3 = 8

100% = 8*10 = 80 students.

Answer:

I wasnt sure of the question but i hope this is right

Step-by-step explanation:

Answer:

Cubic units because you are measuring the volume of the pool and

Step-by-step explanation:

Answer:

(2,4) (-5,5) (3,4)

Step-by-step explanation:

( had taken the test

Answer:

scalene

Step-by-step explanation:

all side lengths are different

Answer:

148cm²

Step-by-step explanation:

seriously why, just why? okay, hold on, we're gonna be here a while

Let's start with the triangles, they're all equal, and we already have their measurements and the formula for the area of a triangle is base x height ÷ 2, so all we have to do is plug:

5 x 8 = 40

40 ÷ 2 = 20

Now we have to multiply by 3 because there's 3 of these abominations:

20 x 3 = 60

So we put that on a back burner while we do the semicircle

So the formula for the area of a circle is pi x radius², so we have to find the radius. We know that each of the triangle bottoms is 5cm, so we just multiply by 3:

5 x 3 = 15

So the diameter of the semicircle is 15cm, now we divide that by two to find the radius:

15 ÷ 2 = 7.5

Now we just plug that into our formula (we're using 3.14 for pi)

7.5² = 56.25

3.14 x 56.25 = 176.625‬

Usually, we'd stop there, but it's only half of a circle, so:

176.625 ÷ 2 = 88.3125‬

So now we add both of our areas:

60 + 88.3125‬ =

148.3125‬

Normally, that would be the answer, but since we're supposed to be estimating, we round it to the nearest whole number:

148.3125 -> 148

So the area of the figure is 148cm²

if this is wrong, let me know so I can fix it

hope this helps:)