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3 years ago

11

Derek bought a package of 8 tennis balls. The total weight of the tennis balls was 18 ounces. How much did each tennis ball weig

h?

1 answer:

beks73 [17]3 years ago

7 0

2.25 ounces...18/8=2.25

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Help with number 10 please

vladimir2022 [97]

Answer:

If he is traveling over 85 miles its cheaper to use company a

Step-by-step explanation:

137-65= 72

72÷0.85= 84.7058823529= 85

So after 85 miles company A is cheaper

5 0

3 years ago

Martin is taking a test at school. His teacher gave him 1 hour and 15 minutes to complete the test. He has been taking the test

nekit [7.7K]

Converting 1 hour and 15 minutes to minutes only, its 75 minutes. 75 - 54 is 21. So, Martin has 21 minutes left to finish.

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3 years ago

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How do you simplify sin2x=cosx

torisob [31]

sin(2x) = cos(x)
2sin(x)cos(x) = cos(x) Expand sin(2x).
2cos(x) 2cos(x) Divide 2cos(x) on each side.
sin(x) = ¹/₂
sin⁻¹[sin(x)] = sin⁻¹(¹/₂) Use sin⁻¹(x) on each side.
x = 30, 150 Find the answer.

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3 years ago

Find 3 1/6 + (-4 1/3).

jeka94

Answer:

-1 1/6

Step-by-step explanation:

$3\frac{1}{6} + (-4\frac{1}{3} )$

Convert the mixed numbers into improper fractions

$\frac{19}{6} + (-\frac{13}{3} )$

Apply the rule: a + (-b) = a - b

$\frac{19}{6} + (-\frac{13}{3} ) = \frac{19}{6} - \frac{13}{3}$

The Least Common Multiplier of 6 and 3 is 6

Adjust the fractions on the LCM

$\frac{19}{6} - \frac{26}{3}$

Apply the Fraction Rule: $\frac{a}{c} -\frac{b}{c} = \frac{a - b}{c}$

$\frac{19 - 26}{6}$

Subtract the numbers

$\frac{-7}{6}$

Apply the Fraction Rule: $\frac{-a}{b} = - \frac{a}{b}$

$-\frac{7}{6}$

Convert improper fraction into a mixed number

$-1\frac{1}{6}$

Hope this Helps :)

3 0

2 years ago

Answer ASAP In the given diagram, ∠4 = 45°, ∠5 = 135° and ∠10 = ∠11 Part A: Solve for the values of the remaining angles. Show a

MaRussiya [10]

Answer:

A) ∠9 = ∠10 = ∠11 = ∠12 = 90°

∠2 = ∠3 = ∠5 = ∠8 = 135°

∠1 = ∠4 = ∠6 = ∠7 = 45°

B) 1. ∠4 and ∠1 -> vertical angles

2. ∠7 and ∠5 -> supplementary

3. ∠9 and ∠10 -> supplementary

Step-by-step explanation:

<u>Data</u>

∠4 = 45°

∠5 = 135°

∠10 = ∠11

The following are vertical angles, so they are congruent:

∠1 ≅ ∠4

∠3 ≅ ∠2

∠11 ≅ ∠9

∠10 ≅ ∠12

∠7 ≅ ∠6

∠5 ≅ ∠8

From here and data, it is deduced that

∠11 ≅ ∠9 ≅ ∠10 ≅ ∠12

From the picture, the addition of them is equal to 360°, then:

∠11 + ∠9 + ∠10 + ∠12 = 360°

4*∠11 = 360°

∠11 = 360°/4

∠11 = 90° = ∠10 = ∠9 = ∠12

∠2 and ∠4 are supplementary, then:

∠2 + ∠4 = 180°

∠2 = 180° - 45°

∠2 = 135°

∠7 and ∠5 are supplementary, then:

∠7 + ∠5 = 180°

∠7 = 180° - 135°

∠7 = 45°

6 0

3 years ago

Read 2 more answers