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fredd [130]
3 years ago
6

Solve for x. -3x + 4 = -8 A) x = 4 B) x = -4 C) No Solution D) x = -4/3

Mathematics
2 answers:
Mkey [24]3 years ago
8 0
<span>-3x + 4 = -8
First: You will subtract 4 on each side of the equal sign
You will get: -3x= -12
Next: You would divide each side by -3
You would get: x=4
Your answer would be: A, x=4

HOPE THIS HELPS! ^_^</span>
Delvig [45]3 years ago
6 0
The answer is A. Hope this helps!
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Can somebody please give me a step by step explanation. I have the answer I just don’t know how to show work!!!!!!! Please!!!
krek1111 [17]

Answer:

5391.76

Step-by-step explanation:

We have a rectangle and 2 semicircles

First find the area of the rectangle

A = l*w

A = 44*88= 3872

Then we know that 2 semicircles = 1 circle

The area of a circle is

A = pi r^2

The diameter is 44 so the radius is 22

A = pi * 22^2

A = pi484

A =1519.76

Add the areas together

1519.76+3872

5391.76

7 0
3 years ago
Isabella constructed a cylindrical vase that has a volume of 63 cubic centimeters.Jasonbconstructed a cone that had the same hei
Korvikt [17]
<span>cylindrical vase
r=radius </span>cylinder=radius cone
h= height cylinder=height cone
Volume  cylindrical vase (V1)= 63 cm³=pi*r² *h

cone
Volume cone (V2)=pi*r² *h
if radius cylinder=radius cone  and height cylinder=height cone
then V1=V2
therefore
V2= 63 cm³

the answer is The volume of cone is 63 cm³
5 0
3 years ago
an isosceles triangle has congruent sides of 20cm. the base is 10cm. find the height of the triangle.​
dolphi86 [110]

Answer:

\large\boxed{A_\triangle=25\sqrt{15}\ cm^2}

Step-by-step explanation:

Look at the picture.

The formula of an area of a triangle:

A_\triangle=\dfrac{bh}{2}

<em>b</em><em> - base</em>

<em>h</em><em> - height</em>

<em />

We need a length of a height.

Use the Pythagorean theorem:

leg^2+leg^2=hypotenuse^2

We have:

leg=5,\ leg=h,\ hypotenuse=20

Substitute:

5^2+h^2=20^2

25+h^2=400             <em>subtract 25 from both sides</em>

h^2=375\to h=\sqrt{375}\\\\h=\sqrt{(25)(15)}\\\\h=\sqrt{25}\cdot\sqrt{15}\\\\h=5\sqrt{15}\ cm

Calculate the area:

A_\triangle=\dfrac{(10)(5\sqrt{15})}{2}=\dfrac{50\sqrt{15}}{2}=25\sqrt{15}\ cm^2

8 0
3 years ago
Angles ∠123 and ∠423 share a ray, what is the ray called?
Jet001 [13]

Answer:

Ray 23

Step-by-step explanation:

8 0
3 years ago
Find the distance between the points (-2, 4) and (5, 4). <br> 3<br><br> 7 <br><br> 8
Lina20 [59]
Try this solution:
distance= \sqrt{(5-(-2)^2+(4-4)^2} = \sqrt{49} =7.

answer: 7
8 0
3 years ago
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