All categories

2 years ago

Which is an equivalent expression for 21a+35?

Mathematics

1 answer:

ki77a [65]2 years ago

5 0

Answer:

7(3a + 5)

Step-by-step explanation:

Rewrite 21 as 7 · 3

Rewrite 35 as 7 · 5

Therefore,

⇒ 21a + 35 = 7 · 3a + 7 · 5

Factor out common term 7:

⇒ 7 · 3a + 7 · 5 = 7(3a + 5)

You might be interested in

Which statement about the graph is true? The graph shows a proportional relationship because it is a line, and the difference be

irga5000 [103]

Answer:

Quick question what graph

Step-by-step explanation:

5 0

3 years ago

Which linear equation has a slope of 3 and a y-intercept of –2?

gogolik [260]

The equation of the line that has a slope of 3 and a y-intercept of -2 is:

6 0

3 years ago

Read 2 more answers

3. Which property justifies rewriting

Maksim231197 [3]

B distributive property

7 0

2 years ago

Integral of of sin x/cosˆ2 x

marin [14]

Answer:

$\sec x + c$

Step-by-step explanation:

$\int \frac{ \sin \: x}{ { \cos}^{2}x } \: dx \\ \\ = \int \frac{ \sin \: x}{ { \cos}x } . \frac{ 1}{ { \cos}x } \: dx \\ \\ = \int \tan x . \sec x \: dx \\ \\ = \sec x + c$

7 0

2 years ago

The SI unit of work is

Tju [1.3M]

Answer:

<h3> $\boxed{ \bold{ \blue{ Joule}}}$ </h3>

Step-by-step explanation:

The SI unit of work is Joule.

Further more explanation:

▪️ $\blue{ \mathsf{ {What \: is \: Work \: ?}}}$

⇒Work done by a force acting on a body is defined as the product of force and displacement of the body in the direction of the force.

▪️ $\blue{ \bold{ \sf{What \: is \: SI \: unit \: ?}}}$

⇒The system of units which is agreed by the international convention of scientists held in France in 1960 is called SI unit.

▪️ $\blue{ \bold{ \sf{What \: do \: you \: mean \: by \: \: one \: joule \: work \: \: ?}}}$

⇒One joule is the amount of work done when one Newton force displaces a body through one metre in its own direction.

Hope I helped!

Best regards!

5 0

3 years ago