All categories

2 years ago

Rose has $25 and wants to buy a dress that costs $32.78. How many more money does she need to buy.

Mathematics

2 answers:

anastassius [24]2 years ago

7 0

Answer:

7.78

Step-by-step explanation:

32.78 - 25 = 7.78

Westkost [7]2 years ago

5 0

Answer:

$7.78

Step-by-step explanation:

You might be interested in

Use Pythagorean theorem to find right triangle side lengths 8 and 10

sp2606 [1]

Answer:

Step-by-step explanation:

$a^{2}+b^{2} =c^{2} \\\\8^{2}+b^{2} =10^{2} \\64+b^{2}=100\\b^{2}=36\\\sqrt{36} =6\\b=6$

4 0

3 years ago

I dont understand this problem

Fiesta28 [93]

Answer:

D and F

Step-by-step explanation:

$x^{2}+4x+4=12$ can be rewritten as $x^{2} +4x-8=0$ .

From there you can use the quadratic formula $x=\frac{-b±\sqrt{b^{2}+4ac } }{2a}$ (ignore the A, I can‘t seem to remove it), where a=1, b=4, and c=-8.

$x=\frac{-4±\sqrt{4^{2}-4(1)(-8)} }{2(1)}$

Then you get $x=\frac{-4±\sqrt{16+32}}{2}$

Then you get $x=\frac{-4±\sqrt{48} }{2}$

So $x=-2±\frac{4\sqrt{3} }{2}$

Which means $x=-2+2\sqrt{3}$ or $-2-2\sqrt{3}$ which are choices D and F.

8 0

2 years ago

In the regular octagon below, if AP = 12 cm. and BC = 19 cm, find its area.

Blizzard [7]

First symmetrically cut the octagon to get 8 pieces. (So that you will get the idea that this polygon is divided into 8 triangles)

Then find the area of one of the triangles:

Area of Triangle = $\frac{1}{2} * b* h$

A = $\frac{1}{2}$ × 12 × 19

A = 114 cm²

To find the area of the whole octagon shape:

A = 114 × 8 = 912 cm²

<em>Hope it helps!</em>

5 0

1 year ago

Read 2 more answers

If cos theta = 0.5, find sec theta. A. 0.25 B. 0.5 C. 1 D. 2

Vsevolod [243]

Sec theta = 1/cos theta = 1/0.5 = 2

Option D is the correct answer.

4 0

3 years ago

Triangle ABC has coordinates of A(–8, –8), B(4, –2), and C(2, 2). Find the coordinates of its image after a dilation centered at

kherson [118]

The answer is (C) because you multiply each point by 1.5.

7 0

3 years ago

Read 2 more answers