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3 years ago

In a class, every student knows French or German (or both). 15 students know French, and 17 students know German.

1 answer:

4 0

Answer:
32 students

Explanation:
We are given that:
Students in the class can either speak French, German or both
15 students know French
17 students know German

Now, the maximum number in the class can be calculated by assuming that no student can speak both languages.
This means that the number of students will be the summation of those who know French only (15) and those who know German only (17)

In this case:
the maximum number of students = 15 + 17 = 32 students

Hope this helps :)

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What's the answer to this?

beks73 [17]

Answer:

Q' = (-4, -2)

R' = (4, -2)

S' = (4, 2)

T' = (-4, 2)

Step-by-step explanation:

First, we can create a matrix to scale this rectangle by putting all the x coordinates in the top row and all the y coordinates in the bottom row and multiply it by 4.

Our initial matrix to multiply:

$4\left[\begin{array}{cccc}-1&1&1&-1\\-2&-2&-1&-1\end{array}\right]$

Moved to the origin:

$4\left[\begin{array}{cccc}-1&1&1&-1\\-0.5&-0.5&0.5&0.5\end{array}\right]$

Multiplied by four:

$\left[\begin{array}{cccc}-4&4&4&-4\\-2&-2&2&2\end{array}\right]$

This gives us the points of

Q' = (-4, -2)

R' = (4, -2)

S' = (4, 2)

T' = (-4, 2)

which are our answers.

3 0

2 years ago

Which equation could represent the relationship shown in the scatter plot?

umka2103 [35]

From the scatter plot, the equation that could represent the relationship shown is y = 1/2x + 7.

7 0

3 years ago

Read 2 more answers

John is arguing that they should use the following expressions to calculate the final cost of this item: (20-20•0.15)+(20-20•0.1

Vikki [24]

If they use (20-20x0.15)+(20-20x.015)x0.05 the final cost would be $34.05

Hope this helps

3 0

4 years ago

ASAP! HELP )

Setler79 [48]

$HEY THERE!!$

To find the approximate we have to multiply with 2

find the approximation of √7 = 14

find the approximation of √13 = 26

find the approximation of √34 = 68

find the approximation of √91 = 182

HOPE IT HELPS YOU.

5 0

3 years ago

The area of a circle (A) is given by the formula A=r^2 where r is the circle's radius. The formula to find r is______ . If (A)=5

9966 [12]

Answer: (A) and (A)

Step-by-step explanation:

$A=\pi \cdot r^2\\\\\dfrac{A}{\pi}=r^2\\\\\sqrt{\dfrac{A}{\pi}}=r\ \rightarrow \ \bigg(\dfrac{A}{\pi}\bigg)^{\dfrac{1}{2}}\\\\\\\\r=\sqrt{\dfrac{A}{\pi}}\\\\.\ =\sqrt{\dfrac{54\cdot 7}{22}}\\\\.\ =\sqrt{\dfrac{27\cdot 7}{11}}\\\\.\ =\sqrt{\dfrac{189}{11}}\\\\.\ =\sqrt{17.1818}\\\\.\ =4.15$

8 0

3 years ago