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Lyrx [107]
3 years ago
14

3.9 + x = -8 what is x

Mathematics
2 answers:
jarptica [38.1K]3 years ago
7 0

Answer:

x=-11.9

Step-by-step explanation:

madam [21]3 years ago
5 0

Answer:

x= -11.9

Step-by-step explanation:

3.9+x=-8

-3.9       -3.9

x= -11.9

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HELP ASAP!! IM FAILING AND I TRANSFER IN A WEEK. IDK HOW TO DO THIS:
suter [353]
X = W
y = L

<span>1. Write a function that could be used to find the garden’s length y in feet,
given its width x in feet. y =
</span>
A = x * y
20 = x * y
y = 20/x

<span>2. What happens to the length of the 20-square-foot garden as its width
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8 0
3 years ago
Brainliest and 30 points please help
kolbaska11 [484]

Answer:

22. Perimeter = 52 units

     Area = 160 Square Units

23. Notation form :  2 \times 10^{5}

     Standard Form : 200000

Step-by-step explanation:

22.

The formula for perimeter is

P = 2 (length + Width )

  = 2 ( 2x+3x+1)

  =  2(5x+1)

The Formula for Area of a rectangle is

A= length x width

A= 2x \times (3x+1)

A=6x^2+2x

Now we have to find the Perimeter and Area for x = 5

P = 2(5 x 5 +1)

P= 2(26)

P=52 units

A= 6 x 5 x 5 + 2 x 5

A= 150 + 10

A= 160 square units

23.

A. By using rule of exponents , we can determine that both the results will be same.

B.

Miriam's calculation

\frac{2.8 \times 10^{9}}{1.4 \times 10^{4}}

\frac{2.8}{1.4} \times 10^{9-4}

2 \times 10^5

Priya's calculation

\frac{2.8 \times 10^{2}}{1.4 \times 10^{-3}}

\frac{2.8}{1.4} \times 10^{2-(-3)}

2 \times 10^5

Standard notation

2 \times 10^5 = 200000

4 0
3 years ago
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GuDViN [60]
The answer would be 10!
7 0
3 years ago
The number of Roberto’s baseball cards is ¾ the number of David’s cards If Roberto gives ½ of his cards to David, what will be t
inn [45]

Answer:

1/4, 0.25

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which of the following expressions has a coefficient of 6 and a constant of 9?
Tcecarenko [31]
It would be C because a coefficient is always with a variable and 6 is with a variable which makes it a coefficient

Hope this helps

Have a great day/night
6 0
3 years ago
Read 2 more answers
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