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3 years ago

Do anyone good at probabilty and statistcs? but college level

Mathematics

1 answer:

adelina 88 [10]3 years ago

6 0

Yes what's the question

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Karen buys a water heater on clearance. It is 65% off the original price. If Karen pays $350, what was the original price?

andre [41]

Answer:

227.5

Step-by-step explanation:

trust meh ._.

6 0

3 years ago

Round 7.76 to one decimal place

Gelneren [198K]

So if a number is 5 or greater you round up but if the number is 4 or less you round down so the number 6 is above five so you would round the 6 to 10 therefore making it 7.8 instead of 7.76

5 0

4 years ago

Count by 1/4s from 2 1/2 to 6 1/2

Bingel [31]

Answer:

there are 16 1/4s

Step-by-step explanation:

1 = 1/4 x 4

2 1/2 + 4 = 6 1/2

4 = 1/4 x 16

7 0

4 years ago

A spinner has 4 equal-sized sections. To win the game, the pointer must land on a purple section.

sveticcg [70]

Answer:

You didn't include the statements so can you comment them below please.

1 favorable outcome / 4 outcomes in total = 0.25 = 25% to get wanted spot

0.25 purple = 1/4 = 25%

purple = 1/4

If you have any questions you can ask. Hope this helps

Step-by-step explanation:

6 0

4 years ago

The slope of the rafter is 15 m.Half the run of the rafter measure 12m.find the height of the ridge from the base

Korvikt [17]

Answer:

$9\; \rm m$ .

Step-by-step explanation:

Assume that the run of this rafter is level. Then the height of the ridge (the line with a question mark next to it in the diagram) should be perpendicular to the line marked with $\rm 12\; m$ . The three labelled lines in this diagram will form a right triangle.

The line marked as $15\; \rm m$ will be the hypotenuse of this right triangle.
The line marked as $12\; \rm m$ will be one of the triangle's legs.
The line representing the height of the ridge (the one with the question mark) will be the other leg of this right triangle.

Hence, the height of this ridge can be found with the Pythagorean Theorem. By the Pythagorean Theorem:

$(\text{First Leg})^2 + (\text{Second Leg})^2 = (\text{Hypotenuse})^2$ .

In this particular right triangle:

$(\text{Height})^2 + (12\; \rm m)^2 = (15\; \rm m)^2$ .

$(\text{Height})^2 = (15\; \rm m)^2 - (12\; \rm m)^2$ .

Therefore, the height of this ridge would be $\sqrt{81}\; \rm m = 9\; \rm m$ . (Note the unit.)

4 0

3 years ago