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murzikaleks [220]
3 years ago
13

Did I get this right? And please explain why or why not please

Mathematics
1 answer:
schepotkina [342]3 years ago
3 0
\bf 7x^2-10\implies 7(\stackrel{x}{6})^2-10\implies 7(36)-10\implies 252-10\implies 242
\\\\\\
43\ \textless \ y-30\implies 43+30\ \textless \ y\implies 73\ \textless \ y\qquad y=
\begin{cases}
74\\
75\\
76\\
77\\
...+\infty
\end{cases}
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3 years ago
Gisselle has 1/2 of a candy bar. She role off 1/2 of what she had. She then took the piece she broke off and split it into three
saul85 [17]

Answer:

\frac{1}{12}

Step-by-step explanation:

Given:

Gisselle has 1/2 of a candy bar.

She role off 1/2 of what she had and split it into three equal pieces.

Question asked:

What fraction of a candy bar was each piece?

Solution:

Gisselle has = \frac{1}{2} \ of \ a \ candy \ bar

She role off = \frac{1}{2} \ of \ what\ she \ had

                     =\frac{1}{2}  \ of\  \frac{1}{2}\\=\frac{1}{2} \times \frac{1}{2}\\\\=\frac{1}{4}

As she split it into three equal pieces, we will divided it by 3, we get,

\frac{1}{4} \div3\\\frac{1}{4}\times\frac{1}{3}

\frac{1}{12}

Therefore, fraction of a candy bar of each piece is \frac{1}{12}

4 0
3 years ago
If you're driving 30 miles per hour how many hours does it take to drive 60 miles?​
oksian1 [2.3K]

Answer:

2 hours B

Step-by-step explanation:

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Mike is putting a ladder up against his mothers house to clean the roof. His mothers house is 24 feet tall and he is placing the
levacccp [35]

The length of the ladder is 25 feet.

<u>Explanation:</u>

Height of the House, h = 24 feet

Distance between the house and the ladder, b = 7 feet

length of the ladder, x = ?

The house makes 90° with the base of the ladder.

Using pythagoras  theorm,

x² = h² + b²

x² = (24)² + (7)²

x = √625

x = 25

Therefore, the length of the ladder is 25 feet.

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3 years ago
5488÷32 = a. 171R16 b. 176R18 c. 176R10 d. 171R8
Alexxx [7]
A. 171r16 in my coculations
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3 years ago
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