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Alja [10]
3 years ago
7

Which equation has x = -2 as the solution?

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
8 0
The answer is 2x + 8 = 4
ivanzaharov [21]3 years ago
8 0
The answer is 2x +8=4 because 2 times -2 equals -4. When -4 is added to 8, it comes out to 4
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Help<br> me please asap
enot [183]

Answer:

first one:

Area of a circle = π*r²

diameter (they gave) = 30ft

radius = diameter/2 = 15ft

π*15²= 706.85834705770347865409476123789‬

to nearest tenth= 706.9 ft

second question:

circumference = 2*π*r or d(diameter)*π

diameter = 30ft

30*π = circumference = 94.247779607693797153879301498385‬

in terms of π = 30π

4 0
3 years ago
A math class has three girls and 7 boys in the 7th grade and five girls and five boys in the 8th grade the teacher randomly sele
Anuta_ua [19.1K]

Answer:

7/20

Step-by-step explanation:

Seventh grade: Total = 3 + 7 = 10

Number of boys = 7 boys

Probability of a boy being picked = 7/10

Eighth grade: Total 5 + 5 = 10

Number of boys = 5

Probability 5/10 = 1/2

The probability of the correct outcome = 7/10  *  1/2  = 7 / 20

Answer: 7 / 20

7 0
3 years ago
janice bought her mother a bunch of 10 flowers. two of the flowers are daisies. one half of the remaining flowers are tulips. wr
Paul [167]
2/10, or simplified as 1/5.
Since the part that are daisies is 2, and the total number of flowers is 10, the fraction is 2/10 or 1/5.
3 0
3 years ago
PLEASE ANSWER LAST OF MY POINTS, DUE IN 10 MINUTES
makkiz [27]
No HAHAHAHAHAahhahahsiaijxjs
6 0
3 years ago
Standard form Q)9, Q)10
jeka94
9) 0.31
10) (7x10^6)-(3x10^3)
7000000-3000=6997000
6.997x10^6

Hope this helps :)
7 0
3 years ago
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