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Anni [7]
3 years ago
9

-7+(-3) SHOW WORK PLEASE HURRY

Mathematics
1 answer:
DENIUS [597]3 years ago
7 0

Answer:

-10

Step-by-step explanation:

-7+(-3)= -7-3

= -(7+3)

= -10

Side note: Do you not have a caculator?

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How do you find the median of these numbers $17.49, $11.29, $16.89, $11.79?
luda_lava [24]
Good morning, kid. It's quite easy.

The median is the middle number in a set after you place them least to greatest:

$11.29, $11.79, $16.89, $17.49

Well, since the numbers in the set are even, meaning there are only 4 numbers, we pick out the 2 middle numbers which would be, $11.79 and $16.89. Find the average (add them and divide by 2) and you'll get the median.

$11.79 + $16.89 = $28.68/2 = $14.34
Thus, the median is: $14.34
6 0
4 years ago
Whats the parent and shift for y=x-6
Sonbull [250]
The parent function is either identity function or constant function
the translation is down 6
8 0
3 years ago
6^6??????? please help meeeee
Alisiya [41]

Answer:

46656.

Step-by-step explanation:

6^6 = 6*6*6*6*6*6

= 46656.

5 0
3 years ago
Information on a packet of seeds claims that the germination rate is 92%. The packet contains 160 seeds.
xenn [34]

Answer: a. N(0.92, 0.0215)

Step-by-step explanation:

For population proportion (p) and sample size n, the mean and standard deviation is given by :-

The sampling distribution model for p is given by :_

N(\mu_p,\ \sigma_p)

, where

\mu_p=p \\ \sigma_p=\sqrt{\dfrac{p(1-p)}{n}

We assume that the seeds are randomly selected.

Given : Information on a packet of seeds claims that the germination rate is 92%.

i.e. p= 0.92

The packet contains 160 seeds.

i.e. n= 160

Then ,  \mu_p=0.92\\ \sigma_p=\sqrt{\dfrac{0.92(1-0.92)}{160}}\approx0.0215

Hence, the sampling distribution model for p is:

N(\mu_p,\sigma_p) = N(0.92, 0.0215)

7 0
4 years ago
Find the center, vertices, and foci for the ellipse 25x^2+64y^2=1600
Ronch [10]

Answer:

Step-by-step explanation:

Answer:

Data

Equation               25x² + 64y² = 1600

Process

1.- Divide all the equation by 1600

                            25x²/1600 + 64y²/ 1600 = 1600/1600

-Simplify

                             x²/64 + y²/ 25 = 1

2.- Equation of a horizontal ellipse

                            

3.- Find a, b and c

   a² = 64             a = 8

   b² = 25             b = 5

-Calculate c with the Pythagorean theorem

                  a² = b² + c²

-Solve for c

                  c² = a² - b²

-Substitution

                  c² = 8² - 5²

-Simplification

                 c² = 64 - 25

                 c² = 39

-Result

                 c = √13

4.- Find the center

         C = (0, 0)

5.- Find the vertices

         V1 = (-8, 0)     V2 = (8, 0)

6.- Find the foci

         F1 = (-√13, 0)   F2 = (√13, 0)

4 0
3 years ago
Read 2 more answers
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