All categories

2 years ago

Miranda is adding the numbers below. 2.9 times 10^10 + 5.35 times 10^10 What is the sum written in scientific notation?

1 answer:

6 0

2.9*10^10+ 5.35*10^10
= (2.9+ 5.35)*10^10 (distributive property)
= 8.25*10^10

The correct answer is A. 8.25 times 10^10~

You might be interested in

Find the Area of the figure below, composed of an isoceles trapezoid and one

MAVERICK [17]

Answer:

the total area is 15.6 square units

Step-by-step explanation:

hello,

you can find the total area dividing the shape into two known shapes

total area= area of the trapezoid +area of the semicircle

then

step one

find the area of the isosceles trapezoid using

$A=\frac{a+b}{2}*h$

where

a is the smaller base

b is the bigger base

h is theheight

A is the area

let

a=2

b=5

h=4

put the values into the equation

$A=\frac{a+b}{2}*h\\A=\frac{5+2}{2}*4\\A=3.5*4\\A=14$

Step two

find the area of the semicircle

the area of a circle is given by

$A_{c}=\pi \frac{d^{2}}{4}\\$

but, we need the area of half circle, we need divide this by 2

$A_{semic}=\frac{ \pi \frac{d^{2}}{4}}{2}\\A_{semic}= \pi \frac{d^{2}}{8}$

now the diameter of the semicircle is 2, put this value into the equation

$A_{semic}= \pi \frac{2^{2}}{8}\\\\A_{semic}= \pi \frac{1}{2}\\ A_{semic}=\frac{\pi }{2}\\$

find the total area

total area= area of the trapezoid +area of the semicircle

$total\ area= 14+\frac{\pi }{2} \\total\ area=15.6$

so, the total area is 15.6 square units

Have a good day.

5 0

3 years ago

When a 49 pound weight is attached to the spring, the spring stretches 7 inches. Assume that the length of the spring y varies d

stealth61 [152]

I'm not totally sure, but it might be y= x/7.

8 0

3 years ago

The difference of twice a number and 6 is at most 25

Hitman42 [59]

This is your personal answer
2( x - 6) <= 28

x - 6 <= 14

x <= 20

6 0

3 years ago

Find the inverse of the function F(x) = 5x + 10 F -1 (x) = ?

snow_tiger [21]

Answer is F-1(x)= x/5-2 it is x over 5 minus 2

3 0

3 years ago

PLS ANSWER FAST I ONLY HAVE LIKE 40 MIND

MakcuM [25]

Answer:

1. 5

2. C

3. A

Step-by-step explanation:

4 0

3 years ago