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marta [7]
4 years ago
12

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is

the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation. x + y = 24 3x + 5y = 100 What does the solution of this system indicate about the questions on the test? The test contains 4 three-point questions and 20 five-point questions. The test contains 10 three-point questions and 14 five-point questions. The test contains 14 three-point questions and 10 five-point questions. The test contains 20 three-point questions and 8 five-point questions.

Mathematics
2 answers:
Nikitich [7]4 years ago
6 0
X represents the number of 3-point questions.
y represents the number of 5-point questions.
The solution is (x, y) = (10, 14).

The test contains 10 three-point questions and 14 five-point questions.

Jet001 [13]4 years ago
4 0

x represents the number of 3-point questions.

y represents the number of 5-point questions.

The solution is (x, y) = (10, 14).


The test contains 10 three-point questions and 14 five-point question

hope this helps you

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Let f(x) = 6x2 + 5 and g(x) = 3x - 5. Find g(f(0)).<br> A) 10 <br> B) 75 <br> C) 90 <br> D) 155
Kitty [74]

Answer:

A

Step-by-step explanation:

evaluate f(0) then substitute value into g(x)

f(0) = 0 + 5 = 5

g(5) = (3 × 5) - 5 = 15 - 5 = 10 → A


8 0
3 years ago
Evaluate the function for the given value.<br> If f(x) = -3x2 – 8, then f(-4)= ?
Ganezh [65]

Answer:

The answer is

<h2>f( - 4) =  - 56</h2>

Step-by-step explanation:

f(x) =  - 3 {x}^{2}  - 8 \\

To find f(-4) , substitute the value of x that's - 4 into f(x). That is for every x in f(x) , replace it with - 4

We have

f( - 4) =  - 3 ({ - 4})^{2}  - 8 \\  =  - 3(16) - 8 \\  =  - 48 - 8 \:  \:  \:  \:  \:

We have the final answer as

f( - 4) =  - 56

Hope this helps you

4 0
3 years ago
PLS HELPP ASAP!! WILL MARK BRAINLIEST!!
Vilka [71]

Answer:

The correct answer is A) 3x(3x + 2)(3x - 2)

Step-by-step explanation:

In order to find this, first take out the greatest common factor.

27x^3 - 12x

3x(9x^2 - 4)

Now, what is left in parenthesis is the difference of perfect squares. This allows us to factor.

3x(3x + 2)(3x - 2)

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NNADVOKAT [17]

Answer:

D 0.61

Step-by-step explanation:


0.42

0.69

= 0.6089

7 0
4 years ago
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