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3 years ago

I have no idea where to start

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

7 0

Answer:

where the 5 is you always start in the middle when you handle shapes and things like that.

Step-by-step explanation:

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Rewrite the function in intercept form y=x^2+8x+15

gavmur [86]

<span>To do that, you need to set it all to zero and factor: x^2+8x+15 = 0 (x+5)(x+3) = 0 then put both those in parentheses chunks in their own equations x + 5 = 0 x + 3 = 0 and then simplify x = -5 x = -3 So the two points where the parabola crosses the x-axis are -5 and -3.</span>

3 0

3 years ago

Help asap plz, shshshjdhshxh

jek_recluse [69]

What are you trying to find

5 0

4 years ago

Read 2 more answers

SURFACE AREAS – PYRAMIDS URGENT

soldier1979 [14.2K]

In this question , to find the total surface area , we have to find the area of all faces and add them .

And here the base is a hexagon. THe formula of area of hexagon is

$\frac{3 \sqrt 3}{2} a^2$

And in the given diagram, side length , a=4cm , so area is

$\frac{3 \sqrt 3}{2} (4)^2 = 24 \sqrt 3$

Now we need to find the area of triangle.

We have 6 triangular faces. And for area of triangle, we need the slant edge, and for that we use pythagorean formula

$8^2+(2 \sqrt 3)^2=h^2 \\ h^2 =76 \\ h = 2 \sqrt{19}$

Now we use the formula of area of triangle which is half times the product of base times height. And since there are 6 triangles, so we have to multiply by 6 too.

$=6*(1/2)*4*2 \sqrt{19} = 104.61$

So total surface area is

$24 \sqrt 3 + 104.61 =146.2 cm^2$

3 0

3 years ago

Write an inequality for the graph

scoray [572]

X is greater or equal to 0
the top one

8 0

3 years ago

1.) Solve -23.7 + d = -48.57.

Olegator [25]

Answer:

-24.87

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

d−23.7=−48.57

Step 2: Add 23.7 to both sides

d−23.7+23.7=−48.57+23.7

d=-24.87

3 0

3 years ago

I have no idea where to start​

I have no idea where to start