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3 years ago

Can Julia cut a triangular patch for a quilt that has side lengths of 1 1/2 inches, 2 inches, and 4 inches?

Mathematics

1 answer:

faust18 [17]3 years ago

6 0

Yes she can , so that would Ben your answer

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Can anyone help i will give extra points

nataly862011 [7]

For question 3: 12 boys bc since 60 percent are girls, 40 percent are boys, the proportion 40/100=X/30 can be solved, 1200=100X, leaving you with X=12 boys

5 0

3 years ago

Point D is the in center of triangle ABC. Write an expression for the length x in terms of the three side lengths AB, AC, BC.

mina [271]

Answer:

$\underline{\boxed{x = \frac{A_r}{AC}}}$

Step-by-step explanation:

$let \: the \: area \: be \to \: A_r \\ since \: the \: base =AC \\ then \: the \: height = AB \\ but \: AB = 2x \\ hence : the \: area \: A_r= \frac{1}{2} AC(2x) \\ (2x)AC = 2A_r\\ x = \frac{2(A_r)}{2(AC)} \\ \boxed{x = \frac{A_r}{AC}}$

7 0

3 years ago

Sarah had 20 apples, If adam stole 15 of them, how many does sarah have now?

Rina8888 [55]

Answer:

5 apples

Step-by-step explanation:

20 - 15 = 5

6 0

3 years ago

HELP PLEASE <br><br>i dont understand at all...

bija089 [108]

An exponent signifies repeated multiplication.

$x\cdot x\cdot x=x^{3}$ the factor x is repeated 3 times

Exponents can be added and subtracted to express the effects of multiplication and division.

$\dfrac{x\cdot x\cdot x\cdot x\cdot x}{x\cdot x\cdot x}=\dfrac{x^{5}}{x^{3}}\\\\=\dfrac{x\cdot x\cdot x}{x\cdot x\cdot x}\cdot x\cdot x=x\cdot x\\\\=x^{(5-3)}=x^{2}$

The addition and subtraction of exponents works the same even when there are more denominator factors than numerator factors.

$\dfrac{x\cdot x\cdot x}{x\cdot x\cdot x\cdot x\cdot x}=\dfrac{x^{3}}{x^{5}}=\dfrac{1}{x^{2}}\\\\=x^{(3-5)}=x^{-2}$

That is, a negative numerator exponent is the same as a positive denominator exponent and vice versa. You can move a factor with an exponent from denominator to numerator and change the sign of the exponent, and vice versa.

Your expression has 3 in the denominator with a negative exponent. It can be moved to the numerator and the exponent changed to positive:

$\dfrac{1}{3^{-2}}=3^{2}\\\\=3\cdot 3=\bf{9}$

8 0

3 years ago

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blagie [28]

Answer:

Total distance covered by the maintenance worker = 9189.16 feet

Step-by-step explanation:

An amusement park has a diameter = 975 feet

Radius of the park = $\frac{\text{Diameter}}{2}$

r = $\frac{975}{2}$

r = 487.5 feet

Since a maintenance worker walks around the park three times, that means he covers the circumference of the circle thrice.

Circumference = 2πr

C = 2π(487.5)

C = 975π feet

He covers this distance thrice,

So total distance covered by him = 3 × (975π)

= 2925π

= 9189.16 feet

Therefore, he walks 9189.16 feet per day.

6 0

2 years ago