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Basile [38]
3 years ago
10

Triangle ABC has area 45cm. Find the length AB. 10cm 400

Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0

Answer:

if the triangle is equilateral, then side AB would measure 15cm

Step-by-step explanation:

side AB would be 15cm, because the area is 45 cm and there are 3 sides, so 45/3=15. again, assuming the triangle is equilateral

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Please help a brother out! Thank you!
netineya [11]

they are saying x = 3 so you would use the middle equation

so -4x becomes -4(3)

-4 * 3 =-12

5 0
2 years ago
Which rational number equals 0 point 4 with bar over 4?
Ulleksa [173]
<h3>Answer:   4/9</h3>

==============================================

Work Shown:

x = 0.\overline{4}\\\\x = 0.4444\ldots\\\\10x = 4.4444\ldots\\\\10x-x = 4.4444\ldots-0.4444\ldots\\\\9x = 4\\\\x = \frac{4}{9}\\\\\frac{4}{9} = 0.\overline{4}= 0.4444\ldots\\\\

The idea is that when we subtract 10x and x, the infinite decimal pattern (the 4s that go on forever) will cancel. That leads to 9x = 4 which solves to x = 4/9

6 0
3 years ago
A number of squares are connected in a row to form a rectangle. The table shows the relationship between the number of squares,
svp [43]

Answer:

✅The table can be represented by the equation, y = 4x + 4

✅The relation is a function.

✅The graph of the function is linear.

Step-by-step explanation:

✍️The first statement: The table can be represented by the equation, y = 4x + 4.

To check if the first statement is correct let's find the equation that can represent the table by finding the slope (m) and y-intercept (b).

Using two pairs, (1, 8) and (2, 12),

Slope = \frac{y_2 - y_1}{x_2 - x_1} = \frac{12 - 8}{2 - 1} = \frac{4}{1} = 4.

Substitute, x = 1, y = 8, and m = 4 into y = mx + b to solve for b.

Thus:

8 = (4)(1) + b

8 = 4 + b

Subtract 4 from each side

8 - 4 = b

4 = b

Plug in the values of b and m into y = mx + b.

Thus, the equation that represents the table would be:

y = 4x + 4.

✅Therefore, the first statement is correct.

✍️The second statement: The graph of the function is non-linear.

This is NOT TRUE because the equation of the function, y = 4x + 4, represents the equation of a linear graph in the slope-intercept form. When graphed, it will give us a straight line.

✍️The Third statement: The relation is a function.

This is TRUE because each input value (x-value) has exactly one output value (y-value).

✍️The Fourth statement: The rate of change is NOT constant.

This standby is NOT TRUE.

The rate of change is the slope (m) that we have calculated above to be 4. Between any two pairs, the rate of change remains 4.

Therefore, this statement is not correct.

✍️The Fifth statement: The graph of the function is linear.

This is TRUE. As stated earlier, from the equation generated, it is safe to say that the equation represents graph of a linear function. The graph will be a straight line graph.

5 0
3 years ago
Someone help me with the ASAP!
JulsSmile [24]

\mathsf{Given :\;\;\dfrac{12}{\frac{3}{5}}}

\mathsf{:\implies 12 \times \dfrac{5}{3}}

\mathsf{:\implies 4 \times 5}

\mathsf{:\implies 20}

4 0
3 years ago
Read 2 more answers
(4×⁴+3׳+2ײ-×+1)+(5ײ-2×+3)​
Annette [7]

Answer:

4×⁴+3׳+7ײ-3x+4

Step-by-step explanation:

First remove the parentheses and pair up like terms

4×⁴+3׳+2ײ+5ײ-x-2x+1+3

Then combine the like terms

4×⁴+3׳+7ײ-3x+4

Which is the answer.

3 0
3 years ago
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