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3 years ago

Write an expression that is equivalent to 30(x + y + 1)

Mathematics

1 answer:

Lerok [7]3 years ago

4 0

Answer:

30x + 30y +30

Step-by-step explanation:

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Michelle needs to save $7,000 for school in the next two years. She found a bank that offers a 9% interest rate compounded annua

Lina20 [59]

$100\%+9\%=109\%=1.09\\\\x\times1.09^2=7,000\\\\1.1881x=7,000\ \ \ \ /:1.1881\\\\x\approx5892\\\\Answer:\$5892$

5 0

3 years ago

Please help I’ll mark brainlist

Kay [80]

Answer:

⚪ 4: three right triangles and one acute-angled triangle.

Step-by-step explanation:

$.$

7 0

3 years ago

Read 2 more answers

A 20 foot ladder leaning against a wall is used to reach a window that is 17 feet above the ground. How far from the wall is the

GarryVolchara [31]

The bottom of the ladder is 10.5 feet away from the wall

Step-by-step explanation:

The given scenario forms a right triangle.

Where

The length of ladder will be the hypotenuse

The wall on which the window is situated will ebt he perpendicular and

The distance between the foot of ladder and the wall will be the base

So,

Hypotenuse = H = 20 foot

Perpendicular = P = 17 feet

Base = B = ?

Using the Pythagoras theorem

$H^2=P^2+B^2\\(20)^2=(17)^2+B^2\\400=289+B^2\\400-289=B^2\\B^2=111\\Taking\ square\ root\ on\ both\ sides\\\sqrt{B^2}=\sqrt{111}\\B=10.53\\Rounding\ off\ to\ the\ nearest\ tenth\\B=10.5$

The bottom of the ladder is 10.5 feet away from the wall

Keywords: Triangle, Pythagoras Theorem

Learn more about Pythagoras theorem at:

#LearnwithBrainly

8 0

3 years ago

What would be the equation of the midline of this graph?

andrey2020 [161]

Answer:

Step-by-step explanation:

Vertices of the quadrilateral ABCD are,

A → (-5, 2)

B → (-3, 4)

C → (-2, 4)

D → (-1, 2)

By reflecting the given quadrilateral ABCD across x-axis to form the image quadrilateral A'B'C'D',

Rule for the reflection of a point across x-axis is,

(x, y) → (x , -y)

Coordinates of the image point A' will be,

A(-5, 2) → A'(-5, -2)

From the picture attached, point E is obtained by translation of point A'.

Rule for the translation of a point by h units right and k units up,

A'(x+h, y+k) → E(x', y')

By this rule,

A'(-5 + h, -2 + k) → E(1, -1)

By comparing coordinates of A' and E,

-5 + h = 1

h = 6

-2 + k = -1

k = 1

That means

Rule for the translation will be,

[(x + 6), (y + 1)]

5 0

3 years ago

Find the surface area of a cube with edges 5.88 cm long

Verdich [7]

Answer:

207.45cm²

this is ur answer...

plz mark as brainlisted

6 0

3 years ago