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pentagon [3]
3 years ago
12

Coach she can do 30 jumping jacks in 30 seconds

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

because every second is one

Vesna [10]3 years ago
3 0

Answer:

ok

Step-by-step explanation:

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HELP PLEASE IM STRUGGLING
ser-zykov [4K]

Step-by-step explanation:

Both are very correct,

5 { }^{ - 2}  =  \frac{1}{25}  \: or \:  \frac{1}{5 {}^{2} }

because any number raised to the power of a negative

is given as

a {}^{ - x}  =  \frac{1}{a {}^{x} }

if this helped pls give brainliest

4 0
3 years ago
Can someone help me with this problem
SVETLANKA909090 [29]
3x + 14 = 143

3x = 129

X = 43
5 0
3 years ago
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The population at Bishop High School is 2000 students in 2011. Every year the population decreases by 50 students
Artemon [7]

Answer:

  • Let p be the population at t be the number of years since 2011.  Then, p=2000-50t
  • The projected population of the high school in 2015=1800
  • In <u>2019</u> the population be 1600 students

Step-by-step explanation:

Given: The population at Bishop High School students in 2011 =2000

Also,  Every year the population decreases by 50 students which implies the rate of decrease in population is constant.

So, the function is a linear function.

Let p be the population at t be the number of years since 2011.

Then, p=2000-50t

So at t=0, p=2000

In year 2015, t=4, substitute t=4 in the above equation ,we get

p=2000-50(4)\\\Rightarrow\ p=2000-200\\\Rightarrow\ p=1800

Hence, the projected population of the high school in 2015=1800

Now, put p=1600 in the function , we get

1600=2000-50t\\\Rightarrow50t=2000-1600\\\Rightarrow50t=400\\\Rightarrow\ t=\frac{400}{50}\\\Rightarrow\ t=8

Now, 2011+8=2019

Hence, in <u>2019</u> the population be 1600 students




6 0
3 years ago
How do -11.5 and -9.5 compare?
DIA [1.3K]

Answer:

-9.5 is larger by 2 units

Step-by-step explanation:

-9.5 - (-11.5)

= -9.5 + 11.5

= 2.

5 0
3 years ago
What is the missing numbers<br><br> 9 tenths + 7 hundredths<br><br> 6 tenths + _ hundredths = 0.66
dolphi86 [110]
The first one is 0.97 the second one is 6
7 0
3 years ago
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