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2 years ago

Which is the value of 3b² — b when b = 5?

Mathematics

1 answer:

yanalaym [24]2 years ago

3 0

Answer:

The answer is

Step-by-step explanation:

3b² - b

when b = 5

Substitute the value of b that's 5 into the expression

That's

3(5)² - 5

= 3(25) - 5

= 75 - 5

We have the final answer as

Hope this helps you

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Can anyone simplify 24q2/8q-3

Morgarella [4.7K]

24q^2 / 8q^-3

lets break this down...
24/8 = 3

q^2 / q^-3....when dividing exponents with the same base, keep the base and subtract the exponents. q^2 / q^-3 = q^(2 -(-3) = q^(2 + 3) = q^5

put them together and u get : 3q^5

4 0

3 years ago

What's the area of this triangle

Luda [366]

Answer:

D A = (1/2) (y₂ - y₁)(x₃ - x₁)

Step-by-step explanation:

b = (y₂ - y₁)

h = (x₃ - x₁)

A = (1/2)bh

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2 years ago

Solve for x:

SIZIF [17.4K]

Answer:

x = 5.95

Step-by-step explanation:

Given

$\frac{x}{1.7}$ = 3.5

Multiply both sides by 1.7 to clear the fraction

x = 1.7 × 3.5 = 5.95

8 0

2 years ago

I will give Brainliest to who answers. 9a + 46 = 5a + 74

Sonbull [250]

“a” would equal 7!! hope this helps :)

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3 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

2 years ago