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bazaltina [42]
3 years ago
7

What value of a will make the following equation true?

Mathematics
2 answers:
Nataly [62]3 years ago
8 0

Answer:

a=16

Step-by-step explanation:

Strike441 [17]3 years ago
6 0

Answer:

A=4

Step-by-step explanation:

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Use two sets of coordinates to write an equation<br> to describe the relationship.
Irina-Kira [14]

Answer/Step-by-step explanation:

An equation that describes the relationship can be written as y = mx.

Using the two sets of coordinates, (2, 140) and (4, 280), calculate the slope (m) as shown below:

\frac{y_2 - y_1}{x_2 - x_1} = \frac{280 - 140}{4 - 2} = \frac{140}{2} = 70

Substitute m = 70 into y = mx

The equation would be:

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This equation can be interpreted as follows:

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3 years ago
Simplify the square root of -121?
poizon [28]

Answer:

11<em>i</em>

Step-by-step explanation:

first you have to get a postive root.

\sqrt{-121} \\ \sqrt{-1}  \sqrt{121} \\

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\sqrt{-1} = i\\ \sqrt{121} =11\\ 11i

8 0
3 years ago
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55 is 40% of what number
SCORPION-xisa [38]
You simply put 40 over a hundred and 55 over n (which is the number were trying to find)  so you do cross multiplication. 55 times a hundred and after you get the answer. You divide it by 40 and should get 137.5.
3 0
3 years ago
-5(5-3v)=-115<br> Helpp me please
prisoha [69]

we start by opening the brackets so it will be -25 plus 15 v is equals to 115. negative times a negative is a positive so -5 times -3 we we have gotten positive 15v there I hope you understood so our new equation is -25 + 15v is equals to 115 collect the like terms 15v is equals to 115 + 25 15 v is equals to 140 divide both sides by 15 so v is equals to 9 and 1/3

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3 years ago
ΔABC is similar to ΔDEF. The length of segment AC is 12 cm. The length of segment BC is 18 cm. The length of segment DF is 10 cm
avanturin [10]

since similar, then

EF/BC = DF/AC

EF = BC•DF/AC

= 18•10/12

= 15

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3 years ago
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