I have keys, but no locks and space, and no rooms. You can enter, but you can’t go outside. What am I?

Answer: A. 16

Step-by-step explanation:

16Step-by-step explanation:

Step-by-step explanation:

Find volume of pyramid

Formula for volume of pyramid

= (height * length * width) ÷ 3

Height = 4mm

B (base = area = length x width) =15mm^2

Volume = (4mm * 15mm^2) ÷ 3

= 60 ÷ 3

= 20 mm^3

Answer:

Step-by-step explanation:

20mm^3

Answer:

x = -7   or   y = 1

Step-by-step explanation:

Since we are not given the actual formula for the parabola, we do not know in which direction the parabola is facing. The axis of symmetry is the value of the line that splits the parabola perfectly down the middle, to calculate this we need to know in which direction the parabola is facing. Since we do not have this information and only have the maximum vertex we can provide the two possible values for the Axis of Symmetry, which would be the following...

x = -7   or   y = 1

Answer:1. X+2y=0 answer:−2y     2. 12y= -6x answer:x=−2y

Step-by-step explanation:

Answer: 60

Step-by-step explanation:

Answer: 2nd option and 4th option

I got this right on plato

Answer:

C.

4x – y = 7

Step-by-step explanation:

Write in standard form.

4

x

−

y

=

7

y

=

4

x

−

7

The standard form of a linear equation is  

A

x

+

B

y

=

C

.

Rewrite the equation with the sides flipped.

4

x

−

7

=

y

Move all terms containing variables to the left side of the equation.

Tap for more steps...

4

x

−

y

−

7

=

0

Add  

7

to both sides of the equation.

4

x

−

y

=

7

variable

A letter used to represent a number value in an expression or an equation.

equation

A mathematical statement that says two expressions have the same value; any number sentence with an  

=

.

Answer:

2/3

Step-by-step explanation:

Have a good day :)

Answer:

35g protein

Step-by-step explanation:

If 100g cornflakes contain 7g protein and now we need to find how much protein is in 500g cornflakes simply multiply 7 by 5.

Answer:

You can explore a variety of things in Alaska. There are so many activities you could do such as visiting museums and hiking and tons more. The thing about this is that it is out in the wilderness which makes it more exciting and cooler to see nature more than it does in new zealand. The climate can be pretty chilly in Alaska but it is way much fun to see tons of glaciers. New zealand has eathquakes frequently whilst Alaska doesn't.

Answer:

A) B.R(-9)?

Step-by-step explanation:

Answer:

17 - 42

18 - 50

Step-by-step explanation:

17)

You know the total measurement of both angles is 180.

So your formula is (2x+54) + x = 180. Now rearrange to get

180 - (2x+54) = x or 180-2x+54 =x

Simply to -2x+126 = x followed by moving x and moving 126 to get

-3x = -126 , now divide both sides by -3

18)

Your complete circle is 360 and  you know one angle is 90.

Set your formula to 360=90+(3x)+(x-20)+(2x-10)

Rewrite to 360 = 90+3x+x-20+2x-10 and combine like terms

360 = 90 - 20 - 10 + 3x + x+2x

360 = 60 + 6x

360 - 60 = 6x

300 = 6x

300/6 = x

50 = x

Answer:

1200 m2

Step-by-step explanation:

hope i helped

Answer:

-16

Step-by-step explanation:

4×(-2)²×(-1)³

=4×4×-1

=-16

Answer:

-3

Step-by-step explanation:

You replace the x in the equation for 5 so the problem to work it out would be f(x)=-2(5)+7

then you just solve the equation normally

Answer:

Step-by-step explanation:

f(x)=-2x+7

f(5)=-2×5+7

=-10+7

=-3

Answer:

The is answer is 120sq. ft.

Step-by-step explanation:

To find the area mulitply 10 by 12 and you get 120.

Answer:

-25

Step-by-step explanation:

hope this helps

Answer:

-25

Step-by-step explanation:

-20-20 is -40.

-40+15 is -25

Hope this helps

9514 1404 393

Answer:

  4arcsin(x^(1/4)) +C

Step-by-step explanation:

Let x = z^4. Then dx = 4z^3·dz, and the given expression is ...

  [tex]\displaystyle\frac{dx}{\sqrt{x\sqrt{x}-x^2}}=\frac{4z^3\,dz}{\sqrt{z^4z^2-z^8}}=4\cdot\frac{dz}{\sqrt{1-z^2}}[/tex]

and its integral is ...

  [tex]\displaystyle\int{\frac{4\,dz}{\sqrt{1-z^2}}}=4\arcsin{(z)}+C=\boxed{4\arcsin{\sqrt[4]{x}}+C}[/tex]

__

Note that the original integrand is only defined on the interval (0, 1).

Answer:

(0, -1)

Step-by-step explanation:

hope this helps :)

Answer:

826 feet,

Step-by-step explanation:

Difference = 648 - (-178)

= 648 + 178

= 826.

Answer:

b) 6/7

c) 14

Step-by-step explanation:

b) Scale Factor = Red/(Red+Blue) = 8/(8+6) = 8/14 = 6/7.

c) x =  8+6 = 14.

EXTRA TIP: If you aren't sure, think about wheter these triangles are isosceles(from the diagram). Hope this helps!

Answer:

The answer is 4.

Step-by-step explanation:

Have a great day. :)

Okay, I'm failing too but I'm in a higher grade the answer is 4

The distance between the two boats will be equal to 63 meters.

Trigonometry is the branch of mathematics which set up a relationship between the sides and angle of the right-angle triangles.

The image is attached with the answer below we can see the two boats at different angles 3 so the distance between the two boats will be calculated as:-

Distance of the boat at an angle of 22 degrees.

[tex]x_1 =\dfrac{50}{tan22}=123\ m[/tex]

Distance of the boat at an angle of 15 degrees.

[tex]x_2=\dfrac{50}{tan15}=186\ m[/tex]

So the distance between the two boats will be:-

x₂-x₁    =   186   -  123  =   63 m

Hence the distance between the two boats will be equal to 63 meters.

To know more about Trigonometry follow

https://brainly.com/question/24349828

#SPJ1

Answer:

WXV=87° because they are opposite angle

Step-by-step explanation:

frist we need to find TU

TU=1/2×87°

TU=43.5

WSTU is half circle =180°

WS+ST+TU=180°

72°+43.5+ST=180°

115.5+ST=180°

ST=180°-115.5

ST=64.5°

the measurement of UV=wu-x

UV=180°-87°

UV=93° the inner angle that made by UV

the arc of UV1/2=93° cross production

UV=46.5

vst i didn't understand

i help you???

Answer:

C) 5 3√2

Step-by-step explanation:

Answer:

I think a

Step-by-step explanation:

Answer:

x=0.125

Step-by-step explanation:

4/32=0.125

Answer:

a.option is the correct answer right I think so

Answer:

A seems to be the right answer