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Sphinxa [80]
3 years ago
5

What is the solution of the equation?-10 + sqrt x+8 = -4

Mathematics
1 answer:
pantera1 [17]3 years ago
6 0
D:x+8\geq0\to x\geq-8\\\\-10+\sqrt{x+8}=-4\ \ \ /+10\\\\\sqrt{x+8}=-4+10\\\\\sqrt{x+8}=6\iff x+8=36\\\\x=36-8\\\\x=28\in D
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Can someone please help me out. I am in need of desperate help and have to leave in one hour! Please help
gtnhenbr [62]
The length is (3/5 -1/5)=2/5
the height is also 2/5
area: length * height =2/5 *2/5=4/5
D is correct. 
8 0
3 years ago
Read 2 more answers
Little Melinda has nickels and quarters in her bank. She has two
SCORPION-xisa [38]

A) N +2 = Q which equals

A) N -Q = -2

B) .05N +.25Q = 3.50  multiplying A) by .25

A) .25N -.25Q = -.5  then adding A) and B)

.30N = 3

Nickels = 10 Quarters = 12

*************DOUBLE CHECK ***************

.05 nickels = $0.50  .25 Quarters = $3.00





7 0
3 years ago
..Urgent.. 600 students attend Ridgewood Junior High School. 10% of students bring their lunch to school everyday. How many stud
zysi [14]

Answer:

Number of student bring their lunch = 60

Step-by-step explanation:

Given:

Total number of student = 600

Student bring their lunch = 10%

Find:

Number of student bring their lunch

Computation:

Number of student bring their lunch = Total number of student x Student bring their lunch

Number of student bring their lunch = 600 x 10%

Number of student bring their lunch = 60

3 0
2 years ago
Find the percent change. Tell whether it is a percent increase or decrease.
timurjin [86]
It would probably be A
5 0
2 years ago
Cara and John collect baseball cards.Cara has 12 times as many baseball cards as John.Together they have 117 cards.How many card
enyata [817]

Answer:

Cara:108

Step-by-step explanation:

John: x number of cards

Cara: 12 times x number of cards(she has 12 times more cards than John)

Cara+John=117 cards

12 \times x + x = 117 \\ 13x = 117 \\ x =  \frac{117}{13}  \\ x = 9

Cara has 12×9 cards, so she has 108 cards.

Hope this was helpful :)

5 0
3 years ago
Read 2 more answers
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