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CaHeK987 [17]
3 years ago
15

Evaluate 3m2 -4 if m = -3​

Mathematics
1 answer:
zhenek [66]3 years ago
8 0

Answer:

23

Step-by-step explanation:

3m^{2} - 4 = 3 * (-3)^{2} - 4 = 3 * 9 - 4 = 27 - 4 = 23

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Answer:

1300.62

Step-by-step explanation:

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The larger of two numbers is 7 times the smaller number. 3 times the larger number is 7 more than 4 times the smaller number. Fi
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So the larger number is x, and the smaller number is y
7y=x
3x=7+4y

(So plug in the 7y=x information into the second equation)

3(7y)=7+4y
21y=7+4y
17y=7
y=7/17
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Read 2 more answers
Determine whether each relation represents a function. For each function, state the domain and range.
nydimaria [60]
D-domain;\ R-range\\\\1)\ \{(2;\ 6),\ (-3;\ 6),\ (4;\ 9),\ (1;\ 10)\}\ YES\ :)\\D=\{2;-3;\ 4;\ 1\};\ R=\{6;\ 9;\ 10\}\\\\2)\ \{(1;\ 3),\ (2;\ 3),\ (3;\ 3),\ (4;\ 3)\}\ \ \ YES\ :)\\D=\{1;\ 2;\ 3;\ 4\};\ R=\{3\}\\\\3)\ \{(\fbox{-2};\ 4),\ (\fbox{-2};\ 6),\ (0;\ 3),\ (3;\ 7)\}\ \ \ NO\ :(\\\\4)\ \{(-2;\ 4),\ (-1;\ 1),\ (0;\ 0),\ (1;\ 1)\}\ \ \ \ YES\ :)\\D=\{-2;-1;\ 0;\ 1\};\ R=\{4;\ 1;\ 0\}
7 0
3 years ago
The following two triangles have the same angles, and are similar. What is the ratio of hypotenuse to base for the triangles?
STatiana [176]

Answer:

A) The ratio of hypotenuse to base for the triangles is 0.75

Step-by-step explanation:

Here, the given  question is INCOMPLETE.

The following two triangles have the same angles, and are similar. What is the ratio of height to base for the triangles?

A) .75

B) 1.00

C) 1.25

D) 2.50

Here, given that the two triangles are similar.

In triangle one:

Height = 6 units , Base = 8 units

In triangle one:

Height = 3 units , Base = 4 units

Now,as the two given triangles are similar.

⇒Their corresponding sides are PROPORTIONAL.

\implies \frac{H}{h}  = \frac{B}{b}  = \frac{6}{8}  = \frac{3}{4}  = 0.75

So, in both the triangles, the corresponding side ratio is 0.75.

Hence, the ratio of hypotenuse to base for the triangles is 0.75

5 0
3 years ago
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