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2 years ago

Brainliest if u solve

Mathematics

2 answers:

sashaice [31]2 years ago

7 0

92 ft i think. please correct me if i’m wrong.

mezya [45]2 years ago

5 0

Answer: a. 80 ft. b. $1200

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Which two equations are true?(2×10−4)+(1.5×10−4)=3.5×10−4(3×10−5)+(2.2×10−5)=6.6×10−10 (6.3×10−1)−(2.1×10−1)=3×10−1(5.4×103)−(2.

tiny-mole [99]

let me edit your question as:

Which two equations are true?

Eq1:

(2×10−4)+(1.5×10−4)=3.5×10−4(3×10−5)+(2.2×10−5)

Eq2:

6.6×10−10(6.3×10−1)−(2.1×10−1)=3×10−1(5.4×103)−(2.7×103)

Eq3:

2.7×103(7.5×106)−(2.5×106)=5×100

Answer:

No one is true

Step-by-step explanation:

let's check each equation, if the values on both sides (left and right side) are equal then the equation is true otherwise false.

Using PEMDAS rule we are simplifying the equations as;

Eq1:

$(2*10-4)+(1.5*10-4)=3.5*10-4(3*10-5)+(2.2*10-5)\\(16)+(11)=35-4(25)+(17)\\27=35-100+17\\27=-48\\$

Eq2:

$6.6*10-10(6.3*10-1)-(2.1*10-1)=3*10-1(5.4*103)-(2.7*103)\\66-10(62)-(20)=30-1(556.2)-278.1\\66-620-20=30-556.2-278.1\\-574=-804.1$

Eq3:

$2.7*103(7.5*106)-(2.5*106)=5*100\\221089.5-265=500\\220824.5=500\\$

we observed that none of the equation has two same values on both sides thus none of the three equations is true.

Also, no value of Eq1, Eq2 or Eq3 are same thus none of the equation is true

8 0

3 years ago

7. During a sale, the price of a pair of running shoes was marked down from $89.95 to $75.00. What was the

shutvik [7]

Answer:

16.6%

Step-by-step explanation:

(75/89.95)*100=83.37....

100-83.37...=16.62...

=16.6%

7 0

2 years ago

Which ordered pairs are on the line 2x−3y=8 ? Select each correct answer. (12,−73) (−2,4) (2,−43) (−5,−6)

timama [110]

The answer is (-5,-6)

6 0

2 years ago

Read 2 more answers

What math symbols are missing to make the equation right: 7 3 7 3 = 24 can not change order of numbers you may use parentheses,

Citrus2011 [14]

Step-by-step explanation:

Here, the given expression is:

7 3 7 3 = 24

Here, to get the desired expression:

7 - 3 = 4

4 + ( 7 x 3 ) = 4 + (21) = 24 = Right Side.

So, the given expression can be written as:

7 - 3 + (7 x 3) = 24

3 0

2 years ago

A cone has a diameter of 24 in. and a slant height of 15 in. What is the approximate volume of the cone? Use 3.14 to approximate

g100num [7]

So you are using Volume...

V=1/3(pi)r^2h
as you go thu this equation

15 x 15 =225
12 x12= 144
225-144= 81
81/9=9

which your piece would be 1/3 pi r^2h answer is 1356.48
and you round it to the nearest tenth. So

( 1356.5) is ur answer...... So (B)

8 0

3 years ago