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3 years ago

Consider the proposition

Mathematics

2 answers:

ddd [48]3 years ago

6 0

your answer is C

Leokris [45]3 years ago

6 0

Answer:

Step-by-step explanation:

2x+5=13

2x+5-5=13-5

2x=8

2x/2=8/2

X=4

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The formula for velocity of an object is the equals d over t where he is a velocity of the object t is the distance traveled and

butalik [34]

Answer:

$(a)\ t =\frac{d}{v}$

$(b)\ d = vt$

Step-by-step explanation:

The question is mixed up with details of another question. See comment for original question

Given

$v = \frac{d}{t}$

$v \to velocity$

$d \to distance$

$t \to time$

Solving (a): Solve for time

We have:

$v = \frac{d}{t}$

Cross multiply

$t * v = d$

Make t the subject

$t =\frac{d}{v}$

Solving (b): Solve for distance

We have:

$v = \frac{d}{t}$

Cross multiply

$d = v * t$

$d = vt$

7 0

3 years ago

What is the value of c ? X^2+3x+c=7/4+c

Musya8 [376]

Answer:

c = 2.25

Step-by-step explanation:

For the given equation, we can find the value of c by dividing the numerical coefficient of the left-hand side of the equation by 2 and squaring the quotient obtained.

$c = ( \frac { 3 } { 2 } )^ 2$

Solving for c to get:

$c = 2 . 2 5$

It means that this value of c is added to both sides of the equation.

4 0

3 years ago

Determine the angle at the centre of a circle with radius 12.0 cm for an arc length of of 21.0 cm.

nata0808 [166]

Answer:

$\theta=\dfrac{7}{4}\ \text{radian}$

Step-by-step explanation:

We have,

Radius of the circle is 12 cm

Arc length, l = 21 cm

It is required to find the central angle of the circle. The formula for the length of an arc of a circle is :

$l=r\times \theta$

$\theta$ is central angle

$\theta=\dfrac{l}{r}\\\\\theta=\dfrac{21}{12}\\\\\theta=\dfrac{7}{4}\ \text{radian}$

So, the angle at the centre of the circle is $\dfrac{7}{4}\ \text{radian}$ .

7 0

3 years ago

PLSS PLSS HELP ME I REALLY DONT UNDERSTAND THIS

atroni [7]

The answer is probably B = 45°

7 0

3 years ago

When n = 6, which of the expressions below will be greater than 175? Select all that

crimeas [40]

Since n=6, replace n with 6.

A) 6^3-4(6)+[3(6)-10]

B) 6(6)^2-3(6)

C) 14(6)+(10x5)

D) 5[6a^2+4(6)]-(10x8)

A) 216-24+18-10

200

B) 1296-18

1278

C) 84+50

134

D) 30a^2+24-80

30a^2-56

So the answers are A and B

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hope it helps

I'm wrong, and I can't take it down so pls report and someone will take it down.

6 0

3 years ago

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