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dexar [7]
3 years ago
5

4. A student earned an 80% on a math test. If she got 16 questions correct, how many problems were on the test? A. 13 questions

B. 18 questions C. 20 questions D. 22 questions​
Mathematics
2 answers:
choli [55]3 years ago
7 0

Answer:

20 questions on the test so C

Step-by-step explanation:

grandymaker [24]3 years ago
5 0

Answer:

20

Step-by-step explanation:

16*100/80

1600/80=20

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Write a number so that the 6 in the number 32692 is 1/10 of the value of the 6 in your number
Alexus [3.1K]

Answer:

36292

Step-by-step explanation:

just move the 6 one place to the left making it bigger.

6 0
3 years ago
Evaluate the indicated function for f(x)=x^2-7 and g(x) =x-2
enyata [817]

Answer:

f(g(x))=(x-2)^2 - 7

(x-2)(x-2) - 7

x^2-2x-2x+4-7

x^2-4x-3

g(f(x))=x^2-2-7

x^2-9

(x+3)(x-3)

Step-by-step explanation:

  1. to solve for f(x), replace x with the g(x).
  2. since we don't multiply a bracket with the negative or the positive signs to the
  3. exponent, you have to factor into two binomials.
  4. use the FOIL method to eliminate the brackets.
  5. add like-terms

  • to find g(x), replace x with the f(x).
  • add like-terms
  • since there's difference of square, factor them into two binomials
7 0
3 years ago
Find the perimeter of the given figure, round to the nearest tenth
labwork [276]

Answer:

2√424 + 62 ≈ 103.1825205639 ≈ <u>103.2 units</u>

Explanation:

Given the two baselengths, and the perpendicular height of the trapezoid, you can actually find the perimeter through the pythangorean theorem because the perpendicular height or height that forms a right or 90 degree angle makes a right triangle(2 be exact because this is an isoceles trapezoid which has two adjacent right triangles).

This is true of the trapezoid is icosceles.

6 0
2 years ago
Read 2 more answers
Can you answer the question in the picture below?
uysha [10]

Step-by-step explanation:

Area of parking lot

= length \: of \: base \:  \times height \\  = 200 \times 120 \\  = 24000 \:  {ft}^{2}

5 0
3 years ago
What is the measure of angle ABC?
Angelina_Jolie [31]
B. 42 degrees
Angle ABC is an inscribed angle so u have to divide Arc AC by 2 to find angle ABC.

84degrees divided by 2 is 42 degrees.
7 0
3 years ago
Read 2 more answers
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