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3 years ago

Please help me . i'm trying to get my grades up and i'm struggling

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

8 0

D because it is..........

LenaWriter [7]3 years ago

3 0

Answer:

Step-by-step explanation:

just took that test

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Simplify the expression. Explain each step 7(4y)

777dan777 [17]

Answer: 28 y

Step-by-step explanation: All you really have to do is multiply 7 by 4y. 7(4y) 28y

6 0

3 years ago

Jenny studied the characteristics of two species of bacteria. The number of bacteria of species A, A(t), after t hours is repres

fredd [130]

Answer: D . $N(t) = 3 + (0.25t)^3 - 8(1.06)^t$

Step-by-step explanation:

Given : Jenny studied the characteristics of two species of bacteria. The number of bacteria of species A, A(t), after t hours is represented by the function,

$A(t) = 5 + (0.25t)^3$

The number of bacteria of species B, B(t), after t hours is represented by the function, $B(t) = 2 + 8(1.06)^t$

Then, the difference in the number of bacteria, N(t), of both the species after t hours will be :-

$N(t)=A(t)-B(t)\\\\=5 + (0.25t)^3-(2 + 8(1.06)^t)\\\\=5 + (0.25t)^3-2-8(1.06)^t\\\\=5-2 +(0.25t)^3-8(1.06)^t\\\\=3+(0.25t)^3-8(1.06)^t$

Hence, the correct answer should be : D . $N(t) = 3 + (0.25t)^3 - 8(1.06)^t$

7 0

4 years ago

Make w the subject of the formula s = w/a

enot [183]

Answer:

w = sa

Step-by-step explanation:

Given

s = $\frac{w}{a}$ ( multiply both sides by a to clear the fraction )

sa = w

8 0

3 years ago

Reggie lost 3 spaceships in level 3 of a video game. He lost 20 points for each spaceship. When he completed level 3, he earned

Dmitry_Shevchenko [17]

Loss: 3 (spaceships) * 20 (points per spaceship)

Gain: 250 (points)

Total: -(3*20) + 250 = +190

3 0

4 years ago

How to convert 0.08333333333 as a fraction?

mart [117]

0.08333333333
as it is a non recurring decimal fraction

x = 0.083333333
1000x = 83.3333333..... 
1000x - x =( 83.333333....) - (0.083333..... )

999x = 83.25 
3996x = 333
x=333/3996
x = 1/12

7 0

3 years ago