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2 years ago

Plz help, I'll give brainliestFind the value of x

Mathematics

1 answer:

Black_prince [1.1K]2 years ago

3 0

Answer:

14.04

Step-by-step explanation:

$19^{2}$ - $17^{2}$ = 72

$\sqrt{72}$ = 8.48

8.48 + 8.48 = 16.96

31 - 16.96 = 14.04

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An ant can travel at a constant speed of 980 inches every 5 minutes. How far does the ant travel in 1 minute? The ant travels 19

ycow [4]

Answer:

The ant travels 1,372 inches in 7 minutes.

Step-by-step explanation:

Since 1 minute = 196 inches

1 × 7 = 7

196 × 7 = 1,372

8 0

2 years ago

I need help. this is the problem x^2/3+10=7x^1/3

Arlecino [84]

$\it x^{\frac{2}{3}}+10=7x^{\frac{1}{3}} \Leftrightarrow (x^{\frac{1}{3}})^2-7x^{\frac{1}
 {3}} +10=0 
\\\;\\
We\ note\ x^{\frac{1}{3}} =t \ \ and \ the \ equation \ will \ be:
\\\;\\
t^2-7t+10 = 0 \Leftrightarrow t^2 -2t-5t+10=0 \Leftrightarrow t(t-2) -5(t-2)=0$

$\it \Leftrightarrow (t-2)(t-5)=0 
\\\;\\
t-2=0 \Rightarrow t=2 \Rightarrow x^{\frac{1}{3}}=2 \Rightarrow (x^{\frac{1}{3}})^3 =2^3 \Rightarrow x = 8
\\\;\\
t-5=0 \Rightarrow t=5 \Rightarrow x^{\frac{1}{3}}= 5 \Rightarrow (x^{\frac{1}{3}})^3 = 5^3 \Rightarrow x = 125$

S = {8; 125}

7 0

3 years ago

What is the most important thing to remember when setting up a proportion

Andrew [12]

Answer:

This will help you answer the question

The most important thing to remember when writing a proportion is to keep the units the same in both ratios. You know the fractions are equivalent because each shows the ratio of girls to boys in the class. The first fraction shows the known ratio of girls to boys.

7 0

3 years ago

Katherine is considering two new cell phone plans. She doesn't want to spend more for minutes she won't use. One plan allows up

mojhsa [17]

Answer:

The first plan of $49 will be best plan for her.

Step-by-step explanation:

Katherine used 1479 minutes call in the last 6 months.

So, the average monthly call that Katherine made is $\frac{1479}{6} =246.5$ minutes.

Now, there are two plans for mobile recharge.

One is 250 minutes call time for $49 and the other is 350 minutes call time for $65.

Since 246.5 < 250 and Katherine does not want to spend more for minutes she won't use, then the first plan of $49 will be the best plan for her. (Answer)

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3 years ago

Byron scrambled 8 dozen eggs for the campers. What is the total number of eggs Byron scrambled

dusya [7]

The answer you are look for is 96

A dozen of eggs =12
He scramble 8 of a dozen

12•8=96

6 0

3 years ago

Plz help, I'll give brainliestFind the value of x​

Plz help, I'll give brainliestFind the value of x