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3 years ago

Ruth bought 7 cases of soda for a picnic. Each case cost $3.50. What total amount did Ruth spend for the soda?

Mathematics

2 answers:

Naya [18.7K]3 years ago

4 0

Answer:

24.50

Step-by-step explanation:

3.50

x 7

24.50

Karolina [17]3 years ago

4 0

Answer:

24.50

Step-by-step explanation:

7 x 3 =21.00 0.50 x 7 = 3.50 21.00 + 3.50 =24.50

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Find the probability p(e or f) if e and f are mutually exclusive, p(e)equals 0.25, and p(f)equals 0.51.

Masteriza [31]

The definition of two events being mutually exclusive (or disjoint) only means that it is not possible for the two events to occur together. Given two events, E and F, they are mutually exclusive and also mean independent.

In this case, since events E and F are mutually exclusive, therefore the probability that either E or F will occur will simply be the sum of two events.

P (E or F) = P (E) + P (F)

P (E or F) = 0.25 + 0.51

P (E or F) = 0.76

Therefore this means that there is a 76% probability that either E or F will occur.

8 0

3 years ago

suppose linda had 2/3 of a yard of fabric and told Sandra that she used 3/4 of a yard. Sandra says this is not possible. Do you

zepelin [54]

I do not agree because 3/4 is greater than 2/3 so you can not do 3/4-2/3

7 0

3 years ago

Simplify 1/9^-3? A. 1/-27 B. 9^3 = 729 C.1/-729 D. 9^-3 = -27

Natali [406]

Exponent rule : a^-b = 1 / (a^b)

1/9 ^-3 =
1 / (1/9^3) =
1 / (1^3) /(9^3) =
1 / (1/729) =
1 * 729/1 =
729

ur answer is B

8 0

3 years ago

Read 2 more answers

How do you answer this?

gulaghasi [49]

Answer:

75.7°

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relations between trig functions and sides of a right triangle. You are given all three sides of the triangle, so you can make use of at least two different trig functions to find the missing angle.

Cos = Adjacent/Hypotenuse

Tan = Opposite/Adjacent

<h3>cosine</h3>

The hypotenuse is 65, and the side adjacent to the unknown angle is 16. That tells you ...

cos(?) = 16/65

The inverse function is used to find the angle value:

? = arccos(16/65) ≈ 75.7°

<h3>tangent</h3>

The side opposite the angle of interest is 63. Then you have ...

tan(?) = 63/16

The inverse function is used to find the angle value:

? = arctan(63/16) ≈ 75.7°

_____

Additional comments

When using trig functions on a calculator, you need to make sure the angle mode is set to what you want. Here, we want angles in degrees, so we have set that as the angle mode. The [DEG] icon in the lower left corner of the display confirms this.

We can't tell what you're supposed to round the value to. The attachment gives enough digits for you to be able to round to whatever precision you need.

5 0

2 years ago

Find the distance between FD F=(4,6) D=(0,-1)

Kaylis [27]

Answer:

Final answer -

$d(FD) = \sqrt{65 } \: units$

hope helpful :D

5 0

2 years ago