Solve the system by substitution.
y = -2x - 7
9x - 10y = 12

Area = ( 4 + 14 ) × 10 / 2 + 1/2 × 14 × 8

Area = 180/2 + 7 × 8

Area = 90 + 56

Area = 146 cm^2

Answer:

$6700

Step-by-step explanation:

A. p. 3. x

Answer:

7 feet 6 inches

Step-by-step explanation:

5 yards = 15 feet

15 feet = 180 inches

180/2 = 90 inches

90 = 7.5 feet

Or 7 feet and 6 inches

Answer:

/13=3.60

(a)^2+(b)^2=(c)^2

(6)^2+(3.60)^2=(c)^2

36+13=(c)^2

49=(c)^2

c= /49

c=7

Step-by-step explanation:

pythagorean theorem is (a)^2+(b)^2=(c)^2

then replace it with the given values

inverse of square is squareroot

Answer:

third side is 7 units

Step-by-step explanation:

Hi there!

the Pythagorean theorem is given as a²+b²=c², where a and b are legs (the sides that make up the right angle) and c is the hypotenuse (side that is opposite to the right angle, or in this case, the third side)

we are given the lengths of the 2 legs, and we need to find the hypotenuse

a=6

b=√13

c=unknown value

square the values of a and b, add them together, and set that to equal c squared

or in other words:

6²+(√13)²=c²

36+13=c²

(because 6*6=36; √13*√13=13)

49=c²

√49=√c²

7=c

therefore the hypotenuse is 7 units

Hope this helps!

A. The area is 4 square units

B. The description is below

======================================================

Break the figure into two parts along the dashed line. So we get a triangle on the left and a rectangle on the right.

The triangle has horizontal base of 3-1 = 2, and height 2. It's area is base*height/2 = 2*2/2 = 4/2 = 2 square units.

The rectangle is 1 by 2, so it's area is length*width = 1*2 = 2 square units.

Combine the two smaller areas to get the overall area: 2+2 = 4 square units

--------

As an alternative, you can use the trapezoid area formula

b1 = 3 and b2 = 1 are the two parallel bases

h = 2 is the height

A = area of trapezoid

A = h*(b1+b2)/2

A = 2*(3+1)/2

A = 2*4/2

A = 8/2

A = 4 square units

what do you mean?.....

sbdbsbshshsjejsjej

Answer: m<8 = 58 degrees

m<5 = 122 degrees

Step-by-step explanation:

Answer:

Ngl I don't know what the F!CK this is

Answer:

5A)36 5b)30(mark as brainliest)

Step-by-step explanation:

5a)6+6+6+6+12 = 36

5b)36-8=28

28+2 = 30

Answer:

a: The answer is 36 units squared

b: You would lose four square units

Step-by-step explanation:

a: You can count the pieces showing, but you also have to add the amount you cannot see, which would give you a total of 36 units squared (since it doesn't say what each unit is represented by

b: The bottom pieces that originally were not showing would now be showing, but you would lose the ones above it. These cancel out from each other. There are 4 other sides that are now no longer showing since the others that are still showing still were anyways, so there are 4 units squared missing from the surface area when you remove the top two blocks.

Answer:

7

Step-by-step explanation:

Answer:

Step 1

Step-by-step explanation:

They're all wrong expansions but step 1 was where he made his first error... He shifted the bracket putting 3x inside the bracket... While the other steps the first expansion of 3x eliminating the bracket was correct.

The correct expansion is meant to be 3x + 21 + 5 = 3x + 26

Answer:

what is the question?????????????

Answer:

2²4

4²=16

4+16=20

hope it helps :)

Answer:

3:8 6:16 12:32 24:64 48:128

Step-by-step explanation:

3:8 6:16 12:32 24:64 48:128

Answer:

[tex]x=\frac{23}{7}- \frac{y}{7}[/tex]

Step-by-step explanation:

2x + 3y = 12

5x - 2y = 11

2x + 3y + 5x - 2y = 11 + 12

7x + y = 23

[tex]x=\frac{23}{7}- \frac{y}{7}[/tex]

Answer:

A is the truth

One trick that helps me memorize the placement of the atoms in each state is how the state acts. For example)

Solid, looks tough rigid. A group of Knight made a strong SOLID barrier by grouping together. So you assume that Solid has atoms that are close together

so knight (atoms) together = solid

Liquid, look at how wobbly it is, the knights are running together so their shield is NO LONGER SOLID. You assume that it is liquid cause they are all around, yet they are still together.

so knight (atoms) all around the place together = liquid

Now gases, they are crazy, they go everywhere. The knights are running their own separate way.

So knights (atoms) running everywhere = gases

Hope that answers your question.

Wish the examples were written better tho.

Step-by-step explanation:

Answer:

12.56

Step-by-step explanation:

the equation for a circumference is C=2pi r

C=2*3.14*2

2*3.14=6.28

6.28*2=12.56

I think the answer should be b, since y=3 when x=0, according to the option B.

y = x + 3, B

1.3 × 10^6 - 0.68 × 10^6 =

( 1.3 - 0.68 ) × 10^6 =

0.62 × 10^6 =

6.2 × 10^5

Answer

y = 0.2x − 7

Step-by-step explanation:

Find the slope first by subtracting (10, -5) and (5, -6) in slope formula, this will equal 1/5 or 0.2

Then find the y-intercept which is the point that crosses the y-axis, in this case -7 is the y-intercept

Finally format in y=mx + b for slope-intercept form

y=0.2x-7

Answer:

Step-by-step explanation:

Answer:

55 centimeters

Step-by-step explanation:

It is a right triangle which means it will add up to 90 degrees. You would start by adding 20 and 15 which is 35 and then subtract 35 from 90 to get 55. I hope this helped :)

[tex]\sf\pink{c\:=\:25\:centimetres}[/tex] ✅

Step-by-step explanation:-

[tex]\sf\purple{Using\:Pythagoras\:theorem, \:we \:have}[/tex]

[tex]({Perpendicular})^{2} + ({Base})^{2} = ({Hypotenuse})^{2} \\ ➪\:( {15 \: cm})^{2} + ({20 \: cm})^{2} = {c}^{2} \\ ➪ \: {c}^{2} = 225 \: {cm}^{2} + 400 \: {cm}^{2} \\ ➪ \: {c}^{2} = 625 \: {cm}^{2} \\ ➪ \: c \: = \sqrt{625 \: {cm}^{2} } \\ ➪ \: c \: = \sqrt{25 \times 25 \: {cm}^{2} } \\ ➪ \: c = \sqrt{ ({25 \: cm})^{2} } \\ ➪ \: c \: = 25 \: cm[/tex]

[tex]{\boxed{\mathcal{\blue{Therefore,\:the\:length\:of\:the\:hypotenuse\:is\:25\:cm.}}}}[/tex]

[tex]\boxed{Note:-}[/tex]

[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]

Answer:

Number of juice boxes people drank at Williams party = 91

Step-by-step explanation:

Total juice boxes Williams bought = 114

Juice boxes left over at the party = 23

How many juice boxes did people drink at William's party?

Number of juice boxes people drank at Williams party = Total juice boxes Williams bought - Juice boxes left over at the party

= 114 - 23

= 91

Number of juice boxes people drank at Williams party = 91

Answer:

1=75 degrees ;1=4=5=7

2=105 degrees 2=3=6=8

Answer:

(1.5, 2.5)

Step-by-step explanation:

Answer:

x=40

Step-by-step explanation:

you have to get a answer of 60

(40)+20=60

and 2(40)-20=60

Answer: Commutative property of multiplication

Step-by-step explanation:

The commutative property is a math rule that says that the order in which we multiply numbers does not change the product. - Khan Academy

Answer:

15% chance of rain o. one day