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4 years ago

What is the value of the expression when s = 2 and t = -1.5?

Mathematics

2 answers:

allsm [11]4 years ago

8 0

Answer:

-13.5

Step-by-step explanation:

trust me

kvasek [131]4 years ago

4 0

Hope it helped you

<h3 /><h3>Thank You </h3>

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<img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%28x%20-%20%20%5Cfrac%7B2%7D%7B9%7D%20%29%28x%20%2B%20%20%5Cfrac%7B1%7D%7B2%7

Aleonysh [2.5K]

$f(x) = (x - \dfrac{2}{9} )(x + \dfrac{1}{2} )$

$\text {When } f(x) = 0 :$

$(x - \dfrac{2}{9} )(x + \dfrac{1}{2} ) = 0$

$(x - \dfrac{2}{9} ) = 0 \text { or } (x + \dfrac{1}{2} ) = 0$

$x = \dfrac{2}{9} \text { or } x = -\dfrac{1}{2}$

3 0

4 years ago

(A journey by bus takes 45 minutes at 60 km per hour. How fast must a car go to do the same

Vlad [161]

Answer:

The car must drive at 108 km/h to cover the same journey.

Step-by-step explanation:

Given that:

Time taken by bus journey = 45 minutes = $\frac{45}{60} = 0.75\ hour$

Speed of bus = 60 km/h

Distance of the journey = Speed * Time

Distance of the journey = 60 * 0.75 = 45 km

The car needs to cover 45 km in 25 minutes.

25 minutes = $\frac{25}{60}\ hour$

Distance = Speed * Time

45 = $\frac{25}{60}*Speed$

Speed = $45*\frac{60}{25}$

Speed = 108 km/h

Hence,

The car must drive at 108 km/h to cover the same journey.

7 0

3 years ago

What is the exponential form of the following expression?

GenaCL600 [577]

-5^3 • 3c :) im almost 99 percent sure this is correct :)

5 0

3 years ago

Read 2 more answers

Hi Please answer this for me ill thank u and rate I Need it asap Thank U :D

Law Incorporation [45]

Answer:4) 1. (3^4)^3=3^12 ,

2.(-10^3)^6=-10^18 others are similar...

5) 1. (2^7/2^5)=2^2,4 ,

2.(a^7/a^3)=a^4 ,

7. [(-4)^3 x (-4)^5)]/[ (-4)^2 x(-4)^3]=4^3 others are similar...

Step-by-step explanation: 4)1. step1. 3^(4x3) , 2. step1. -10^(3x6)

step2. 3^12 , step2. -10^18

5)1. step1. 2^(7-5) , 2. step1. a^(7-3)

step2. 2^(2) , step2. a^(4)

7. step1. -4^(3+5)/-4^(2+3)

step2. -4^(8)/-4^(5)

step3. 4^(8-5)

step4. 4^(3)

8 0

3 years ago

Use exterior angle measures to solve for h

Maru [420]

Answer:

h = 125

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles, that is

h = 63 + 62 = 125

3 0

3 years ago