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3 years ago

How would i determine x ?

Mathematics

1 answer:

dimaraw [331]3 years ago

7 0

Judging by the little marks on the sides, EF is the midsegment. midsegment is half of the base length
so 3x+5=80
3x=75
x=25

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For which equations below is x = –3 a possible solution? Check all that apply.

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3 years ago

Write a ratio for the follow description : Kaleel made three times as many baskets as many baskets as john during basketball pra

Igoryamba

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3 years ago

The mean amount spent by a family of four on food per month is $500 with a standard deviation of $75. Assuming that the food cos

JulijaS [17]

Answer:

The probability that a family spends less than $410 per month

P( X < 410) = 0.1151

Step-by-step explanation:

Step(i):-

Given mean of the population = 500

Given standard deviation of the Population = 75

Let 'X' be the variable in normal distribution

$Z = \frac{x-mean}{S.D}$

Given X = $410

$Z = \frac{410-500}{75} = - 1.2$

Step(ii):-

The probability that a family spends less than $410 per month

P( X < 410) = P( Z < - 1.2 )

= 0.5 - A( -1.2)

= 0.5 - A(1.2)

= 0.5 - 0.3849 ( ∵from normal table)

= 0.1151

Final answer:-

The probability that a family spends less than $410 per month

P( X < 410) = 0.1151

6 0

3 years ago

PLEASE EXPLAIN BECAUSE A GIRL IS COMPLETELY LOST HERE

Afina-wow [57]

Hello!

To find the value of b, we need to use the Law of Sines. The law states,

sin A / a = sin B / b = sin C / c.

We are given these values: sin A = 55 degrees, side a = 8 cm, sin C = 82 degrees.

Since angle B is not given, we have to find it ourselves. We can find the measure of angle B by subtracting both the given angle values from 180 degrees because every triangle is equal to 180 degrees.

180 - 55 - 82 = 43 | The measure of sin B = 43 degrees.

sin (55) / 8 = sin (43) / b (multiply both sides by b)

0.10239... · b = 0.68199... (divide both sides by 0.10239...)

c = 6.6607...

The measure of side b is equal to about 6.7 centimeters.

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3 years ago

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Madison has three jobs. This week she earned $124 waitressing, $30 delivering packages, and $46 babysitting. What percent of her

Likurg_2 [28]

Answer:

23%

Step-by-step explanation:

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3 years ago

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