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3 years ago

I need an explanation

Mathematics

2 answers:

kap26 [50]3 years ago

7 0

Answer:

equilateral x=20

Step-by-step explanation:

3x=60

/3 /3

x=20

all angles of equilateral triangles equals 60

otez555 [7]3 years ago

3 0

Always remember that a triangle will always add up to 180

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F (p)= 2p+4/p-A and f (0)= -2 What is the value of A?<br><br> A=

ira [324]

9514 1404 393

Answer:

A = 2

Step-by-step explanation:

Using 0 for p, we have ...

F(0) = (2·0 +4)/(0 -A) = 4/-A

We want this to be -2, so ...

-2 = 4/-A

A = 4/(-(-2)) = 2 . . . . multiply by A/-2

A = 2

3 0

3 years ago

Choose the correct solution and graph for the inequality-5y<_-15

swat32

For this case we have the following inequality:

$-5y \leq-15$

To solve, we follow the steps below:

We divide between 5 on both sides of the inequality:

$-y \leq \frac {-15} {5}\\-y \leq-3$

We multiply by -1 on both sides taking into account that the sense of inequality changes:

$y \geq3$

Thus, the solution is given by all values of "y" greater than or equal to 3.

Answer:

$y \geq3$

See attached image

The vertical axis represents the "y" axis

4 0

3 years ago

Baldwin Family walked 4/5 of mile in 4/9 of an hour what is their unit rate in mph

Sholpan [36]

Answer:

Step-by-step explanation:

<h2>Since we know how much they walked in 4/9 of an hour, we will divide 4/5 by 4/9 to get 4/9 to one. They went 1 4/5 mph or 1.8 mph. I hope this helps!</h2>

5 0

3 years ago

The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 3408 miles, with a variance

Murrr4er [49]

Answer:

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) = 0.975

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

The mean number of miles between services

μ= 3408 miles

The Variance of miles between services

σ² = 249,001

σ = √249,001 = 499

Let 'X' be a random variable in a normal distribution

Given sample size 'n' =36

<u><em>Step(ii):</em></u>-

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

Z = -163/83.16 = 1.96

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) = P(Z≤1.96)

= 0.5 + A(1.96)

= 0.5 + 0.4750

= 0.975

<u><em>Final answer</em></u>:-

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) =0.975

6 0

3 years ago

BAKE SALE Cassandra and Alberto are selling pies for a fundraiser. Cassandra sold 3 small pies and 14 large pies for a total of

Alex Ar [27]

Answer:

Large pie = 13

small pie = 7

Step-by-step explanation:

hope this helps!

7 0

3 years ago