All categories

3 years ago

Really easy....plz help if u can..will mark

Mathematics

1 answer:

goldenfox [79]3 years ago

4 0

Answer:

The distributive property.

Step-by-step explanation:

The distributive property is when you distribute a number to different numbers in a parentheses. For example...

2*x would be 2x, and 2*4 would be 8.

You might be interested in

In right triangle DEF, ∠E is a right angle, m∠D=26∘, and DF=4.5.

jok3333 [9.3K]

Answer:

The measurement of EF is 1.98 units

Step-by-step explanation:

In Δ DEF

∵ m∠E = 90°

∴ FD is the hypotenuse of the triangle

∵ m∠D = 26°

∵ EF is opposite to angle D

- We can use the sine ratio to find it

∵ sin D = $\frac{EF}{FD}$ ⇒ (opposite side / hypotenuse)

∵ FD = 4.5 units

∴ sin(26) = $\frac{EF}{4.5}$

- Multiply both sides by 4.5

∴ 4.5 sin(26) = EF

∵ sin 26° ≈ 0.44

∴ 4.5(0.44) = EF

∴ 1.98 = EF

The measurement of EF is 1.98 units

3 0

3 years ago

Which of the following statements is false?A. A rhombus is a quadrilateral.B. A quadrilateral is a polygon with four angles.C. I

ololo11 [35]

We have the following statements and results.

A. A rhombus is a quadrilateral.

True. A rhombus is a quadrilateral all of which sides have the same length.

B. A quadrilateral is a polygon with four angles.

True. A polygon is a plane figure with at least three straight sides and angles, and typically five or more.

C. In quadrilateral PQRS, ∠P and ∠S are opposite angles.

False. If we have a quadrilateral PQRS, that means that ∠P and ∠S are consecutive angles, not opposite.

D. The diagonals of a rhombus are perpendicular and bisect each other.

True. It is true that the diagonals of a rhombus are always perpendicular and bisect each other.

Answer.

Statement C is false.

8 0

1 year ago

Anyone help with this math question please dont geuss

Yanka [14]

Answer:

For each ticket sold they earned 3 dollars

Step-by-step explanation:

6 0

3 years ago

The distance from the center of a round table top to the edge of the table top is 4 ft. What's the area of the table top?

son4ous [18]

C would be the answer because to find the area of a circle A=pi times radius squared and you put that in a calculator and get 50.24

8 0

4 years ago

Read 2 more answers

Could someone please help me? Thank you and explain the work because I don’t get this

lesya [120]

Answer:

5.59 times per second.

Step-by-step explanation:

Direct variation is in the form:

$y=kx$

Where k is the constant of variation.

Inverse variation is in the form:

$\displaystyle y=\frac{k}{x}$

In the given problem, the frequency of a vibrating guitar string varies inversely as its length. In other words, using f for frequency and l for length:

$\displaystyle f=\frac{k}{\ell}$

We can solve for the constant of variation. We know that the frequency f is 4.3 when the length is 0.65 meters long. Thus:

$\displaystyle 4.3=\frac{k}{0.65}$

Solve for k:

$k=4.3(0.65)=2.795$

So, our equation becomes:

$\displaystyle f=\frac{2.795}{\ell}$

Then when the length is 0.5 meters, the frequency will be:

$\displaystyle f=\frac{2.795}{.5}=5.59\text{ times per second.}$

5 0

3 years ago