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allochka39001 [22]
2 years ago
5

The length of a cell phone is 1.6 inches and the width is 3.4 inches. The company

Mathematics
1 answer:
Svetach [21]2 years ago
7 0
Assuming that the aspect ratio would remain constant, the new length of the phone should be 4.42 inches.
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Find the missing segment.
Bond [772]

Answer:

? = 7.

Step-by-step explanation:

The two triangles are similar because of the AA Theorem.

The larger triangle's side that is equal to 9 + 3 corresponds to the smaller triangle's side length of 9, while the larger triangle's 21 + ? side corresponds to the smaller triangle's 21 side. Now, we can set up a proportion!

\frac{9}{9+3} =\frac{21}{21 + ?}

\frac{9}{12} =\frac{21}{? + 21}

\frac{3}{4} =\frac{21}{? + 21}

\frac{1}{4} =\frac{7}{? + 21}

? + 21 = 7 * 4

? + 21 = 28

? = 28 - 21

? = 7

Hope this helps!

3 0
3 years ago
Which represents the inverse of the function f(x)=4x​
Galina-37 [17]
F-1(x)=x/4 represents the inverse function because to find the inverse you have to interchange the variables & solve for y
6 0
3 years ago
Find the product.<br> a.<br> 5d - 79<br> b. 12 ab. 3cd
Solnce55 [7]

Answer:

35dg & 36abcd

Step-by-step explanation:

Multiply 7 times 5 then add the remaining terms for equation 1. For equation 2 multiply 12 by 3 for 36.

6 0
3 years ago
If celia made 3 1/2 cups of rice. A serving is 2/3cup. How many servings of rice did she make?
nadezda [96]

Answer:

ima say around 5 and 1/4 cups

Step-by-step explanation:

3 1/2 divided by 2/3 cand be round to

3 3/6 divided by 4/6 to make it easier

6 0
3 years ago
Solve the system of equations -3x+7y=-18 and 4x-4y=8 by combining the equations.
Aleksandr-060686 [28]

Answer:

\huge \colorbox{red}{(x,y)=(-1,-3)}

Step-by-step explanation:

multiply first equation by 4 and second by 3 respectively:

\begin{cases} \displaystyle - 12x + 28y =  - 72 \\   \:  \: \displaystyle  \: 12x - 12y = 24 \end{cases}

combine the equations:

\underline{ \begin{cases} \displaystyle - 12x + 28y =  - 72 \\   \:  \: \displaystyle  \: 12x - 12y = 24 \end{cases}} \\  \displaystyle16y =  - 48

divide both sides by -48:

\displaystyle \:  \frac{16y}{16}  =  \frac{ - 48}{16}  \\ y =  - 3

substitute the value of y to the second equation

\displaystyle \: 4x - 4. - 3 = 8

simplify multiplication:

\displaystyle \: 4x  + 12 = 8

cancel 12 from both sides:

\displaystyle \: 4x =  - 4

divide both sides by 4

\displaystyle \:  \frac{4x}{4}  =  \frac{ - 4}{4}  \\ x =  - 1

therefore our solution is

\displaystyle (x,y)=(-1,-3)

4 0
3 years ago
Read 2 more answers
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