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olga nikolaevna [1]
3 years ago
15

For the expression 5-5x to have a negative value, what must be true about the value of x?

Mathematics
1 answer:
storchak [24]3 years ago
7 0
X has to be greater than 1
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A restaurant sells 10 fish tacos for $8.49, or 6 chicken tacos for $5.40. Which is the better deal?
Vikentia [17]

Answer:

Chicken Tacos

Step-by-step explanation:

10 for 8.49= 8.49÷10=0.849

6 for 5.40=5.40÷ 6=0.900

10×.900=$9

8 0
2 years ago
Please Solve for 3 of them
Furkat [3]

Answer:

13.  b.  4 + 5x = 29; $5.

14.  c.  74 + w = 3w + 6; 34 pounds.

15.  b.  $42.5.

Step-by-step explanation:

13. 4 + 5x = 29

5x = 29-4 = 25

x = 5.

14. 74 + w = 3w + 6

68 = 2w

w = 34.

15. Let x be the money he got last year. Then:

2x + 5 = 90

2x = 85

x = $42.5.

7 0
3 years ago
Instructions: Find the missing side lengths. Leave your answers as radicals in simplest form.
KengaRu [80]

Answer:

X=6 and Y=3

Step-by-step explanation:

Use SOHCAHTOA, SOH, Sin=Opposite/Hypotenuse, Therefore Sin60°=(3√3)/x ; Xsin60°=3√3 and Sin60° without using 4figuretable or calculator is √3/2, Now x=3√3 ÷√3/2 ;. therefore X=3√3×2/√3= 6. X=6 . Using Pythagoras theorem, 6²={(3√3)² +y²}. Y²= 36-27=9. Y=√9, Y=3. Therefore X=6 and Y=3.

7 0
3 years ago
The two spheres above have the same center. One has a radius of 4 cm, and the other has a radius of 5 cm. Approximately how much
frozen [14]
Volume a sphere: [4/3]π(r^3)

Space between the spheres = Volume of the larger sphere - Volume of the smaller sphere

= [4/3]π (R^3) - [4/3π](r^3) = [4/3]π(R^3 - r^3) = [4/3]π {(5cm)^3 - (4cm)^3} =

= 255.5 cm^3

Answer: 255.5 cm^3
8 0
3 years ago
P(x)=×^4-x^2-3<br>use the remainder theorem and synthetic division to find p(-2)
xxTIMURxx [149]

Answer: p(-2)=9


Step-by-step explanation:


8 0
3 years ago
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