3 years ago

Can someone please tell me this equation?

Mathematics

1 answer:

Lena [83]3 years ago

5 0

Answer:

for the number of rubas, it keeps on doubling up while on the square number its only going up by 1 every time.

Step-by-step explanation:

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PLZZZ HELPPPPPPP LAST QUESTIONS LAST CHANCE FOR POINTSSSS REWARD BRAINLIESTT

Nimfa-mama [501]

Answer:

question 19

(2x-5)(3x+1)

Step-by-step explanation:

question 19

6x^2-13x-5

6x^2 coefficient = 6

-13x coeddicient = -13

-5 is constant

multiply coefficient of first term by the constant

i.e. 6*-5= -30

get 2 factors of -30 whoose sum equals -13

-15 +2 = -13

rewrite to have

6x^2-15x+2x-5

3x(2x-5) the firs term

1(2x-5)

add up,

(3x+1)(2x-5)

3 0

3 years ago

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what is the surface area of a rectangular prism whose base is 5 inches by 6 inches and whose height is 5 inches?

Ugo [173]

160 inches... I am 98% sure I am correct

6 0

3 years ago

The distance traveled by a toy car can be modeled by D(t) = t3 − 3t2 + t − 3, where t > 3 represents time in seconds. If the

Bogdan [553]

Answer:

$t^2+1$

Step-by-step explanation:

We are given that

Distance traveled by a toy car

$D(t)=t^3-3t^2+t-3$

Where t>3

Time taken by car =t-3 seconds

We have to find the expression which represents the speed of the toy car.

We know that

$Speed=\frac{Distance}{time}$

Using the formula

$Speed=\frac{(t^3-3t^2+t-3)}{t-3}$

$Speed=\frac{t^2(t-3)+(t-3)}{t-3}$

$Speed=\frac{(t-3)(t^2+1)}{t-3}$

$Speed=t^2+1$

Hence, the expression which represents the speed of the toy car

$t^2+1$

5 0

3 years ago

Simplify each expression. 7(2y+1) + 3y

mars1129 [50]

7(2y+1)+3y
14y + 7 + 3y
17y + 7

4 0

3 years ago

Plsss help will mark brainliest

DiKsa [7]

C, because 7 divided, or over nine, is 7/9
Hope this helps!

3 0

4 years ago

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