WILL GIVE BRAINLYEST

Mathematics

1 answer:

Kazeer [188]3 years ago

8 0

Answer:

the 2nd answer can I have brainlyest please this melted my brain

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Hannah either walks or cycles to school. The probability that she walks to school is 0.75. If she walks, the probability that sh

jek_recluse [69]

Answer:

0.17

Step-by-step explanation:

im not really sure but that closest as 0.75+0.6+0.2=0.83 and 1.00-0.83=0.17

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3 years ago

Dawn and lin took off on skateboards from the same location but traveled in opposite directions. After 20 minutes, Dawn had trav

julia-pushkina [17]

Answer:

14.12 km

Step-by-step explanation:

Distance of Dawn = 6.42 km

Distance from Lin = 7.7 km in the opposite direction.

If they went in opposite directions then they were moving away from each other.

Therefore, the final distance between the two can be written as follows:

d = 6.42 + 7.7 = 14.12 km

After 20 minutes Dawn and Lin were 14.12 km away.

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3 years ago

Find the value of x. Round to the nearest tenth

Inessa05 [86]

the answer should be 12. but I'm only 80% sure sooo...

5 0

4 years ago

Alfredo's painting his storage shed. He won't paint the top or bottom of the shed so he needs to calculate the lateral surface a

slavikrds [6]

Answer:

He is not painting the bottom or top meaning that he will paint 4 sides total, when there is a rectangular prism there are 6 sides and 3 pairs of 2 equal sides, so since there is a wall that is 9ft x 7 ft there is two of those, and since there is a wall that is 12 ft x 7 ft there are two of those as well. meaning that (7x9)·2=126 and (12x7)·2=168 when added we get 294. meaning that he needs to paint an area of 294 ft

7 0

2 years ago

if cot theta = -24/7 and cos theta < 0, name the quad in which theta lies, then find the exact value of csc theta

NemiM [27]

Cot θ = -24/7 and cos θ < 0

"cos θ < 0" means cosine is negative

Remember osmething like "ALL students Take Calculus"?

all is positive in quadrant 1
sine/cosecant is positive only in quadrant 2
tangent/cotangent is positive only in quadrant 3
cosine/secant is positive only in quadrant 4

since cot(angent) is the reciprocal of tangent, tangent must also be negative.

tangent is negative in quadrants II and IV
cosine is negative in quadrants II and III

therefore, θ must lie in quadrant II.

remember the tan θ = y / x. it is the y-coordinate divided by the x-coodinate. the y-coordinate would be the height of this 90 degree triangle that forms. the x-coordinate would be the bottom leg of the 90 degree triangle

then cot θ = x / y. therefore, cot θ = -24 / 7 means x = -24 and y = 7. we draw a triangle with these dimensions.

csc θ = r / y = hypotenuse over opposite (when you view the reference angle labeled as the one to base the hypotenuse/oppoiste on) because it is the reciprocal of sine

the hypotenuse can be found w/ pythagorean theorem

hypotenuse = √[(-24)² + 7²] = 25

therefore,
cot θ = 25/7

4 0

3 years ago