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2 years ago

The area of a triangle is 48cm^2. The height of the triangle is 6cm. Calculate the length of the base

1 answer:

5 0

$\textit{area of a triangle}\\\\ A=\cfrac{1}{2}bh ~~ \begin{cases} b=base\\ h=height\\[-0.5em] \hrulefill\\ h=6\\ A=48 \end{cases}\implies \begin{array}{llll} 48=\cfrac{1}{2}(b)(6)\implies 48=3b \\\\\\ \cfrac{48}{3}=b\implies 16=b \end{array}$

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Solve b 4b+5=1+5b what is b

Leto [7]

Answer: b=4

Step-by-step explanation: Let's solve your equation step-by-step.

4b+5=1+5b

Step 1: Simplify both sides of the equation.

4b+5=5b+1

Step 2: Subtract 5b from both sides.

4b+5−5b=5b+1−5b

−b+5=1

Step 3: Subtract 5 from both sides.

−b+5−5=1−5

−b=−4

Step 4: Divide both sides by -1.

−b

−1

−4

−1

b=4

4 0

3 years ago

Read 2 more answers

Really need need help on this please

Alexxx [7]

Answer:

$\frac{7}{2}$

Step-by-step explanation:

$\frac{12-3y}{2} + y (\frac{2y-4}{y})$

we substitute the value of "y" in the equation:

$\frac{12-3(3)}{2} + 3 (\frac{2(3)-4}{3})\\\\\frac{12-9}{2} + 3 (\frac{6-4}{3})\\\\\frac{3}{2} + 3 (\frac{2}{3})\\\\\frac{3}{2} + 2\\\\\frac{7}{2}$

3 0

3 years ago

A function passes through the points (2,9) and (7,34). What are its rate of change and initial value?

Bess [88]

Answer:

The rate of change: 1/5

Initial value: (0,-1)

Step-by-step explanation:

The rate of change is easily 5/25, we just have to simplify it to 1/5.

To get the intial value, just subtract (2,9) by the rate of change twice.

5 0

3 years ago

True or False: The graph of y = 9 is a horizontal line

maks197457 [2]

true: y = 9 would give us a straight line because of two reasons:

a: we don’t know if x is rising

b: we don’t have an x in the equation

4 0

2 years ago

Jenny made $221 for 13 hours of work. At the same rate, how many hours would she have to work to make $85?

Sever21 [200]

Answer: Jenny would have to work 5 hours to get $85

Step-by-step explanation:

Jenny makes $17 an hour (221/13 = 17) and 85/17 is 5

5 0

2 years ago