MATHEMATICS HIGH SCHOOL

Solve for x:
3x + 5 = 5x – 9

Answers

Answer 1
Answer:

Answer:

x=7

Step-by-step explanation:

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During a snowy day, it snowed lightly for a while, stopped for a while, snowed heavily, and then stopped. Which graph represents this situation?

Answers

A line graph would work with the up and downs.
the graph will go from 0 , up a little, back to 0, up more than before, and back to 0 again.

Which of the following is the same as 2.3×10^3

Answers

The answer would be C) 2,300.

Answer:

Step-by-step explanation:

10 times 10 is 100. then 10 times that is 1000. multiply that by 2.3 and you get 2300. hope thats easy enough to understand. :)

Sam determines the zeros of the function f(x) to be 8 and 7. What could be Sam’s function?1.

f(x) = (x − 8)(x + 7)
2.

f(x) = (x − 8)(x − 7)
3.

f(x) = (x + 8)(x + 7)
4.

f(x) = (x + 8)(x − 7)

Answers

Answer:

2. f (x) = (x - 8)\cdot (x-7)

Step-by-step explanation:

Given that function is polynomial, each zero is contained in binomials of the form (x - a), where a is the value of the zero. The number of roots means the number of binomial and the grade of the polynomial. Then, the function has the following form:

f (x) = (x - 8)\cdot (x-7)

In cosequence, the right answer is 2.
Option 2: f(x) = (x-8)(x-7)

x-8 = 0 ⇒ x = 8

x-7 = 0 ⇒ x = 7

In the figure below, segment AC is congruent to segment AB.Which statement is used to prove that angle ABD is congruent to angle ACD?
Answer

Angle CAB is congruent to angle CBA.

Angle DAC is congruent to angle DAB.

Triangle ACD is similar to triangle ABD.

Segment AD is congruent to segment AC.

Answers

Answer:

Option B is correct.

Angle DAC is congruent to angle DAB

Step-by-step explanation:

Given: Segment AC is congruent to segment AB.

In  ΔABD and ΔACD

AB \cong AC    [Given]

[Congruent sides have the same length]

AB = AC         [Side]

AD = AD        [Common side]

\angle DAC =\angle DAB      [Angle]

Side Angle Side(SAS) Postulate states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent.

Then by SAS,

\triangle ABD \cong \triangle ACD

By CPCT [Corresponding Parts of congruent Triangles are congruent]

then;

\angle ABD \cong \angle ACD

therefore, only statement which is used to prove that angle ABD is congruent to angle ACD is: Angle DAC is congruent to DAB
The right answer for the question that is being asked and shown above is that: "Angle DAC is congruent to angle DAB." The statement that is used to prove that angle ABD is congruent to angle ACD is that Angle DAC is congruent to angle DAB.

Sue is ready to move into a new apartment. Her new rent is 125% of what she paid in the last month. If the new rent is $650, how much rent did she pay in the last month?

Answers

$520is definitely the correct answer

Answer:

A is the correct answer

Step-by-step explanation:

i took the test

If x and y are integers, and 3x + 2y = 13, which of the following could be the value of y ?A. 0
B. 1
C. 2
D. 3
E. 4

Answers

They are all integers so...
first lets substitute
A.3x=13
X=13/3
b.3x+2=13
3x=11
x=11/3
c.3x+4=13
3x=9
x=3
d.3x+6=13
3x=7
x=7/3

E.3x+8=13
3x=5
x=5/3

therefore the possible is letter c because it must be an integer and the definition of integer states that it is not a decimal nor a fraction
C. 2
Because
3x+2(2)=13
3x+4=13
3x=9
x=3

None of the other solutions work out so that both x and y are integers.
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