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umka21 [38]
3 years ago
7

1.4x + 1.2x - 3.8 = -9​

Mathematics
1 answer:
sashaice [31]3 years ago
4 0
First, to make the equation easier to read, you want to add the x’s together. you should then get 2.6x-3.8=-9. then, you want to add the 3.8 to both sides, to make the x stand alone. you should end up with 2.6x=-5.2. to find x, you then want to divide both sides by 2.6. your final answer after dividing should be x=-2
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Octavia can type 60 words per minute. Write the ordered pairs number of minutes, number of words for Octavia typing for 0,1,2, a
Evgen [1.6K]
(0,0) (1,60) (2,120) (3,180)

60 words per minute means 60 words in 1 minute. As an ordered pair, this is (1,60). The number of words is 60 times the number of minutes.
3 0
3 years ago
Find the value of x *​
nasty-shy [4]

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Step-by-step explanation:

6 0
3 years ago
X - 3 + 5x = 15 what is the value of 3x + 4​
sergey [27]

Answer:

13

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
PLZ I NEED HELP NOW THANKS
xeze [42]

Answer:

1240.4 mm²

Step-by-step explanation:

SA of Pentagonal pyramid:

(as)(5/2) + (sl)(5/2)

↑ ↑

base area lateral area

_____________________

a: apothem (in-radius) length, s: side length.

l: slant height.

______________________

Since we are already given the base area which is 440.4 mm². All we need to do is find the lateral area and add both areas together.

Given that the triangular face of the lateral part has a side/base length of 16mm, and a 20mm slant height.

A triangle has an area of ½bh and since there are 5 of these faces total, (5)(½bh) = (5/2)(bh). In a three dimensional perspective, b will be s and h will be l so (sl)(5/2).

With this information the surface area is:

(16)(20)(5/2)mm + (440.4 mm²) →

800 mm² + 440.4 mm² =

1240.4 mm²

7 0
3 years ago
4x107 is times as much as 4x103 10^4 10^10 4x10^10 4x10^4
const2013 [10]

Answer

4 x 103

Step-by-step explanation:

it is the same as 4 x 103 because they have the same significant figures which is three

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3 years ago
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