All categories

3 years ago

Can somebody please help me either these two

Mathematics

2 answers:

Zarrin [17]3 years ago

4 0

1. 8.96 x 105 I think
2. <span>4.25 x 10-4
</span>

pochemuha3 years ago

4 0

Problem 1.

9.3 * 10^7 - 3.4 * 10^6 =

You need the same exponent:

= 9.3 * 10^7 - 0.34 * 10^7

= 8.96 * 10^7

Problem 2.

0.00045 - 2.5 * 10^(-5) =

= 45 * 10^(-5) - 2.5 * 10^(-5)

= 42.5 * 10^(-5)

= 4.25 * 10^(-4)

You might be interested in

P=2h enter the profit in dollars for each hot dog

VikaD [51]

Answer: 8

Step-by-step explanation:

2x4

8 0

2 years ago

Last year, Pattersonville had a population of 40,500 people . The census indicated that the population of the town has been decr

AleksandrR [38]

Answer:

34175 people will live in Pattersonville 8 years from now

Step-by-step explanation:

Initial population of Pattersonville =40,500

We are given that The census indicated that the population of the town has been decreasing by 2.1% per year .

Now we are supposed to find If this trend continues , approximately how many people will live in Pattersonville 8 years from now

Formula : $N(t)=N_0(1-r)^t$

Where N(t)= Population after t years

$N_0$ = Initial population

r = rate of decrease = 2.1 %=0.021

t = 8 years

Substitute the values in the formula :

So, $N(8)=40500(1-0.021)^8$

N(8)=34175.63223

So, 34175 people will live in Pattersonville 8 years from now

7 0

3 years ago

HELP ASAP WHAT IS THIS ANSWER

postnew [5]

Answer:

Step-by-step explanation:

x = 1/2 ( a + b)

x = 1/2 (129 + 71)

x = 1/2 (200)

x = 100 °

you just have to remember that formula

7 0

3 years ago

Each week Charlene uses 3/4 of a bag of cat food to feed her cats. She has 112 bags of cat food in stock. How long will her stoc

inessss [21]

The stock of cat food will last for 149 weeks.

Step-by-step explanation:

Given,

Bags of cat food in stock = 112

Bags used each week = $\frac{3}{4}\ of\ one\ bag$

Let,

x be the number of weeks.

Therefore,

$\frac{3}{4}x=112$

Multiplying both sides by 4/3

$\frac{4}{3}*\frac{3}{4}x=112*\frac{4}{3}\\x=\frac{448}{3}\\x=149.33$

Rounding off to nearest whole number;

x=149

The stock of cat food will last for 149 weeks.

Keywords: fraction, multiplication

Learn more about fractions at:

#LearnwithBrainly

4 0

3 years ago

Trapezoid ABCD and trapezoid JKLM are similar. What side corresponds to side BC? Side LM Side KL Side JK Side KJ

astraxan [27]

Answer: JK

Step-by-step explanation:

3 0

3 years ago