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____ [38]
3 years ago
13

Joan bought 12 books for $87.00 which equation can be used to determine the price

Mathematics
1 answer:
Fed [463]3 years ago
7 0

Answer:

You can use 12/100

Step-by-step explanation:

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What is the answer ?
Anuta_ua [19.1K]

Answer:

x= y+2/3+4

Step-by-step explanation:

5 0
3 years ago
Each of the four angles of a quadrilateral measures 90°. How many rectangles can you construct using this condition?
skad [1K]
The defenition of a rectangle is that it has 4 angles that measure 90 degrees
ther are infinite legnths and inifinite numbers
intinite side legnths so infinite number of unique rectangles
4 0
4 years ago
Read 2 more answers
_ 4. How many roots does the following equation have: 2x^4 – x^3 – 12x^2 – 25x + 5 = 0
vlada-n [284]

Answer:

B. 4

Step-by-step explanation:

The degree of the polynomial (the exponent of the highest term) is the total number of roots (including imaginary roots).

The degree of this polynomial is 4, so there are 4 roots.

7 0
3 years ago
The graph shows a reflection.
Andru [333]

Answer:

false

Step-by-step explanation:

the only difference is the fact that it was reflected over the y-axis. the size of the triangle was not altered. the triangles are the same size, just different locations.

5 0
3 years ago
Read 2 more answers
In a class of 50 students, everyone has either a pierced nose or a pierced ear. The professor asks everyone with a pierced nose
Tems11 [23]

Answer:  3

Step-by-step explanation:

Let E be the event of that student pierces ear and N be the event of that student pierces nose.

Given: n(E\cup N=50)

n(E)=46\\\\n(N)=7

For any two event A and B, we have

n(A\cup B)=n(A)+n(B)-n(A\cap B)

Similarly , n(E\cup N)=n(E)+n(N)-n(E\cap N)

50=46+7-n(E\cap N)\\\\\Rightarrow\ n(E\cap N)=53-50=3

Hence, 3 students have piercings both on their ears and their noses.

7 0
3 years ago
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