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LenKa [72]
3 years ago
6

WILL MARK BRAINLIEST!!!! PLEASE HELP

Mathematics
1 answer:
TEA [102]3 years ago
4 0
I’m pretty sure it’s b - standard
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On Gabriela’s first birthday, her parents gave her a $50 savings account. On every birthday after that her parents added to the
valkas [14]

Answer: a_1=50,d=25 and $475 deposited into the account on her birthdays by her 18th birthday.

Step-by-step explanation:

It is given that, on Gabriela’s first birthday, her parents gave her a $50 savings account.

Initial term : a_1=50

On every birthday after that her parents added to the account, increasing the amount they deposited by $25 each year.

Common difference : d=25

It forms an AP: 50,75,100,...

nth term of an AP is

a_n=a_1+(n-1)d

Substitute a_1=50 and d=25 in the above formula.

a_n=50+(n-1)25

It represents the amount deposited into the account after n birthdays.

We need to find the amount by her 18th birthday.

Put n=18 in the above equation.

a_{18}=50+(18-1)25

a_{18}=50+(17)25

a_{18}=50+425

a_{18}=475

Therefore, $475 deposited into the account on her birthdays by her 18th birthday.

7 0
3 years ago
Please help . Giving brainliest. Only question NUMBER 5 .
OverLord2011 [107]

Answer:

48.8

Step-by-step explanation: The equation for the area of a circle is π*r², since the base of a cylinder is a circle we take the equation of a circle and multiply the height of the cynlinder by using the equation π*r²*h to get the volume of a cylinder. In this case our factors are

π= 3.14

r²= 6.76  

h=2.3

3.14*6.76*2.3=48.82072

rounded to the nearest tenth=48.8

Hope this helps you!

Mark me brainleast!!!!!

7 0
2 years ago
The circle below has a radius of 16 inches.
torisob [31]
2*16*3.14=100.48
Answer D
Explanation:
Circumference = 2*pi*radius
5 0
3 years ago
Does anybody know the answers to these? will mark brainliest!
jeyben [28]

Answer:

1.

Tan 45=√2/n

n=√2

again

sin 45=√2/m

m=2

answer:<u> </u><u>m</u><u>=</u><u>2</u><u>,</u><u>n</u><u>=</u><u>√</u><u>2</u>

<u>2</u><u>.</u>

sin 45=x/3

x=3/√2=3√2/2

y=3√2/2

<u>a</u><u>n</u><u>s</u><u>:</u><u>x</u><u>=</u><u>3√2/2</u><u>,</u><u>y</u><u>=</u><u>3√2/</u><u>3</u>

<u>3</u><u>.</u>

sin 45=a/4

a=4/√2

b=4/√2

ans:<u>a</u><u>=</u><u>4</u><u>/</u><u>√</u><u>2</u><u>,</u><u>b</u><u>=</u><u>4</u><u>/</u><u>√</u><u>2</u>

4.

b=4 base sides of isosceles triangle

sin 45=4/a

a=4√2

ans:<u>a</u><u>=</u><u>4</u><u>√</u><u>2</u><u> </u><u>and</u><u> </u><u>b</u><u>=</u><u>4</u>

5 0
3 years ago
The Super Shop is having a grand opening sale. Today's special includes 4
KATRIN_1 [288]

Answer:

11

Step-by-step explanation:

4d=44

4d/4=44/4

d=11

the cost is 11$ per dress

8 0
3 years ago
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