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vichka [17]
3 years ago
14

Please help me solve this practice SAT question!

Mathematics
1 answer:
lord [1]3 years ago
6 0

Answer:

t=5

Step-by-step explanation:

∵ (t,17) lies on (x,y) plane y=x²-3x+7,t>0

∴ 17=t²-3t+7

t²-3t+7-17=0

t²-3t-10=0

t²-5t+2t-10=0

t(t-5)+2(t-5)=0

(t-5)(t+2)=0

t=5,-2

t>0

so t=5

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If 40% of a number is 80 what is 25% of that number?
olga2289 [7]

Answer:

25% of 200 is 50

Step-by-step explanation

40% of a number is 80

.40 * n = 80

Divide each side by .4

.40 n/.4 = 80/.4

n = 200

The number is 200

Now lets find 25 percent of that number

.25 * 200 = 50


7 0
3 years ago
Type the verb form suggested by the related word(s).<br><br> exerciser
loris [4]

Answer:

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Step-by-step explanation:

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3 years ago
What is the answer 9c-5=13?
riadik2000 [5.3K]
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3 0
3 years ago
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kvv77 [185]
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3 0
3 years ago
Read 2 more answers
How to simplify the expression (6+2)2 to the second power-4x3 using order of operations
dimaraw [331]
The answer would be 28.
--
Here's my work:

Remember PEMDAS:
- Parentheses
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Also, remember to always go left to right.

(6+2)^2-4*3
Square everything in the parenthesis.

36+4-4*3
Multiply where you see a multiplication symbol from left to right.

36+4-12
Add.

40-12
Subtract.

28
Done!
--
I hope I was able to guide and help you on this.
4 0
3 years ago
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