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3 years ago

U all reallyyy gottaa help me

Mathematics

2 answers:

Nady [450]3 years ago

7 0

Sheeeeeseeeeeeeeeeeeeeeeesh

Igoryamba3 years ago

5 0

Answer:

20?

Step-by-step explanation:

4*4=16

6*6=36

36-16=20

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The square of a number exceeds that number by 12. What are the two possible solutions?

Juliette [100K]

Answer:

Step-by-step explanation:

I bought 12 pounds of coffee. I used 1/4 of the coffee in a week. How many pounds did i used in a week??

3 0

3 years ago

I am trying Find the surface area of a prism or cube and it only has 3.5<br>

Kryger [21]

Surface Area of Cube = width^2 * 6 (sides of the cube)

Therefore, (3.5)^2 * 6 =

73.5 [whatever units]^2

4 0

3 years ago

the diagram shows a 5cm x 5cm x 5cm cube calculate the length of the diagonal AB give your answer correct to 1 decimal place

Lynna [10]

Answer:

√3 * 5 = 5√3 cm

Step-by-step explanation:

→ ABCDEFGH is a cube.

→ CF = Diagonal of cube.

→ CH = Diagonal of Base Face BCDH.

→ Let the side of Each cube = a.

Than,

in Right ∆CFH, By Pythagoras Theoram, we have,

→ CH² + FH² = CF² --------- Equation (1)

and, Similarly, in Right ∆CDH ,

→ CD² + DH² = CH² ------- Equation (2).

Putting Value of Equation (2) in Equation (1), we get,

→ (CD² + DH²) + FH² = CF²

→ a² + a² + a² = CF²

→ CF² = 3a²

→ CF = √3a .

Hence, we can say That Diagonal of a cube is √3 times of its sides.

__________________

Given:-

Side of cube = 5cm.

So,

→ Diagonal of cube = √3 * 5 = 5√3 cm. (Ans.)

4 0

3 years ago

I really need some help with this question (Image attached)

ella [17]

Answer:

KL = 23

KM = 29

Step-by-step explanation:

By applying cosine rule in the given triangle KLM,

cos(∠M) = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

cos(52°) = $\frac{LM}{KM}$

cos(52°) = $\frac{18}{KM}$

KM = $\frac{18}{\text{cos}52}$

KM = 29.24

KM ≈ 29

By applying sine rule,

sin(52°) = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

sin(52°) = $\frac{KL}{29.24}$

KL = 29.24[sin(52°)]

= 23.03

≈ 23

KL = 23

6 0

3 years ago

sara had 23 yellow and 43 red marbles. Tim took 22 of saras yellow marbles and gave 10 of them to jack. How many marble does sar

Marat540 [252]

Answer:

Step-by-step explanation:

Sara had 66 marbles in total. After taking 22 away, she is left with 44.

Hope this helps!

8 0

3 years ago

Read 2 more answers