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3 years ago

What is the value of x?Enter your answer in the box.x =

Mathematics

2 answers:

Delicious77 [7]3 years ago

6 0

I’m pretty sure x equals 31

evablogger [386]3 years ago

6 0

X most likely equals 0, when finding the area of a triangle only the length and height is needed. I’m probably not correct on this one but its a possible answer

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Hi can someone please help me? If sin2A=cos 3A find the value of A. Can you please explain in full detail how you arrived at you

cupoosta [38]

Sin (x) = Cos (90 - x)
sin(2A) = cos (90 - 2A)
=cos (3A)
90 - 2A = 3A
5A=90
A=18

6 0

3 years ago

1. y = x + 2 y=-3x What’s is the answer?

DiKsa [7]

Answer:

x=(-1/2) y=(3/2)

Step-by-step explanation:

y=x+2 Given

-3x=x+2 Substitute (-3x) for y

-2-3x=x Subtract 2 from both sides

-2=4x Add 3x to both sides

(-1/2)=x Divide both sides by 4.

y=x+2 Given

y=(-1/2)+2 Substitute (-1/2) for x

y=1 1/2

y=3/2

3 0

3 years ago

Alecia builds a box in the shape of a cube with an open top. She plans to paint the box. Alecia calculates that there are 256 sq

STALIN [3.7K]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the options to select the required condition from were not listed. So, I will answer on general terms

From the question, we understand that the cube has an open-top and the surface ares is 256 in^2

Let L represents the edge length, the surface area (S) is:

$S = 5L^2$

Substitute 256 for S

$256 = 5L^2$

Divide both sides by 5

$51.2 = L^2$

Take square roots of both sides:

$\sqrt{51.2} = L$

$7.155= L$

$L=7.16in$ ---- approximated

The volume of the cube is:

$Volume = L^3$

$Volume = \sqrt{51.2}^3$

$Volume = 366.3573$

$Volume = 366.36in^3$

So, the edge length of the cube is 7.16 inches and the volume is 366.36 cubic inches

6 0

3 years ago

Read 2 more answers

One blanket requires 2 1/5 feet of fabric. If Mariam wants to make 3 1/2 blankets, how much fabric will she need? (answer in fra

melisa1 [442]

2 1/5 = when you simplify is 11/5
3 1/2= when you simplify is 7/2
Now, if Miriam want to make 3 1/2 blanket you have to multiply for 2 1/5 that is the amount for 1 blanket. And the result it will be how much fabric Miriam will need to make the 3 1/2 blanket
However, you have to
3 1/2 x 2 1/5 = 7 7/10 if you simplify it will be
7/2 x 11/5 = 77/10

Calculation steps:

7/2 x 11/5 = 7 x 11 / 2 x 5 = 77/10 = 7 7/10
So, Miriam will need 7 7/10 feet of fabric to make 3 1/2 blanket.

Hope that help.

3 0

3 years ago

Justine correctly multipled the decials shown. How can the product be correct without three decial places 8.5 x 2.34 = 19.89

Sloan [31]

Answer:

The answer is "19.89".

Step-by-step explanation:

Given:

$\to 8.5 \times 2.34$