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4 years ago

What is 10t =90 and how do I solve this?please help

Mathematics

1 answer:

Nesterboy [21]4 years ago

6 0

To solve this you have to divide 90 by 10 which would be 9 so

t=9

Hope it helps

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What is an outlier? How does it effect data like mean, median, and mode?

pogonyaev

An outlier is a number much smaller or larger than the rest of the group of numbers. And outlier does not affect the median or the mode at all. It only affects the mean.

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3 years ago

Someone please help me before I frl cry

Anna71 [15]

Answer:

Equation: 4x = 128

$m\angle 1 = 84\degree$

$m\angle 2 = 96\degree$

Step-by-step explanation:

$m\angle 1+ m\angle 2 =180\degree$ (Linear pair angles)

-> (x + 52)° + (3x)° = 180°

-> (4x + 52)° = 180°

-> 4x + 52 = 180

-> 4x = 180 - 52

-> 4x = 128 ( This is the required equation)

-> x = 128/4

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2 years ago

If a student scored 82 points on a test where the mean score was 78.2 and the standard deviation was 6.7. the student's z score

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Z-score formula is z=(x-m) / sd
x = data value
m= mean
sd = standard deviation

z= (82-78.2) / 6.7
=0.567
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3 years ago

A dolphin jumped up out of the water and back into the water in a parabolic path. (H) height (t) seconds . H=-8(t-0.5)^2+2 . How

tigry1 [53]

Answer:

4 seconds

Step-by-step explanation:

using the vertex formula of a quadratic,

$a(x-h)^{2} + k$ , where (h,k) is the vertex

$h = -8(t-0.5)^{2}+2$ h is height and t is time in seconds

the vertex (maximum height) of the dolphin is (h,k) or (0.5, 2)

Height of 1/2

time of 2 seconds

it will take 2 additional seconds to reach the water again.

this can also be solved using quadratic equation, but since it was already set up in vertex form, i'd use that.

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3 years ago

A group of 25 people are going to run a race. The top 8 finishers advance to the finals. Determine the number of possible outcom

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Answer:

n[total]=25

n[top finishers]=8

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3 years ago

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