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2 years ago

Pls help will give brainiest

Mathematics

1 answer:

Anastaziya [24]2 years ago

7 0

Answer:

Step-by-step explanation:

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A lion paced up and down the ridge 10 times. The ridge is 5 ft. 3 in. long. How far did the lion travel? (12 in.=1 ft.)

Setler79 [48]

Answer:

105 ft.

Step-by-step explanation:

5 x 12 = 60

So 5 feet is 60 inches.

60 + 3 = 63

That makes the ridge 63 inches long.

When the lion went up the ridge, it traveled 63 inches.

When the lion went back down the ridge, it traveled another 63 inches, totaling 126 inches.

The lion did this 10 times.

126 x 10 = 1260

Divide 1260 by 12 to find the measurement in feet.

1260 ÷ 12 = 105

7 0

3 years ago

On a group project, Mira does 24 math questions while Grace does half as many questions. If they have to complete 50 questions,

Troyanec [42]

Answer:

Step-by-step explanation:

24+12=36

50-36=14

hope this helped

3 0

2 years ago

Read 2 more answers

Solve the equation 2cosA = 3tanA

zavuch27 [327]

$\bf sin^2(\theta)+cos^2(\theta)=1\implies cos^2(\theta)=1-sin^2(\theta)
\\\\\\
tan(\theta)=\cfrac{sin(\theta)}{cos(\theta)}\\\\
-----------------------------\\\\

2cos(A)=3tan(A)\implies 2cos(A)=3\cfrac{sin(A)}{cos(A)}
\\\\\\
2cos^2(A)=3sin(A)\implies 2[1-sin^2(A)]=3sin(A)
\\\\\\
2-2sin^2(A)=3sin(A)\implies 2sin^2(A)+3sin(A)-2$

$\bf \\\\\\
0=[2sin(A)-1][sin(A)+2]\implies 
\begin{cases}
0=2sin(A)-1\\
1=2sin(A)\\
\frac{1}{2}=sin(A)\\\\
sin^{-1}\left( \frac{1}{2} \right)=\measuredangle A\\\\
\frac{\pi }{6},\frac{5\pi }{6}\\
----------\\
0=sin(A)+2\\
-2=sin(A)
\end{cases}$

now, as far as the second case....well, sine of anything is within the range of -1 or 1, so -1 < sin(A) < 1

now, we have -2 = sin(A), which simply is out of range for a valid sine, so there's no angle with such sine

so, only the first case are the valid angles for A

8 0

3 years ago

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. Suppose that the

Arisa [49]

The answer is 50%...

5 0

2 years ago

The price of a $250 item after successive discounts of 20% and<br> 30% is?

Ivan

Answer:

The price of item after successive discounts are 20% and 30% is $140.

Step-by-step explanation:

The marked price of item is $250.

Two successive discounts are 20% and 30%.

Price of item after discounts of 20% is

$250-\frac{20}{100}(250)=250-50=200$

New price of item after first discount is $200.

Price of item after second discount, i.e., 30% is

$200-\frac{30}{100}(200)=200-60=140$

Therefore, the price of item after successive discounts are 20% and 30% is $140.

3 0

3 years ago