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devlian [24]
3 years ago
12

Cora chose to have her birthday party

Mathematics
1 answer:
kramer3 years ago
6 0

$35, sorry if I’m wrong

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Evaluate 7^35 7^-21 7^-8
AveGali [126]

Answer:

117,649

Step-by-step explanation:

7^35 x 7^-29

= 7^6

=117,649

3 0
3 years ago
4. solve<br> e) 4^x-10.2^x+16=0<br> I think the dot means multiply?
suter [353]
4^x-10\cdot2^x+16=0\Rightarrow(2^2)^x-10\cdot2^x+16=0\Rightarrow(2^x)^2-10\cdot2^x+16=0

subtitute\ 2^x=t > 0\\\\t^2-10t+16=0\\t^2-2t-8t+16=0\\t(t-2)-8(t-2)=0\\(t-2)(t-8)=0\iff t-2=0\ or\ t-8=0\\\\t=2\ or\ t=8\\\\t=2^1\ or\ t=2^3\\\\therefore\ 2^x=2^1\ or\ 2^x=2^3\\\\Answer:\boxed{x=1\ or\ x=3}
6 0
3 years ago
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CAN SOMEONE HELP ME WITH THIS QUESTION!!!
earnstyle [38]

Answer:

E

Step-by-step explanation:

let a, b, c represent the number of students in 6th, 7th, 8th grade

ratio of students : teachers = 28 : 1

There are 82 teachers , so 28 × 82 = 2296 students

Then

a + b + c = 2296 , that is

828 + b + c = 2296 ( subtract 828 from both sides )

b + c = 1468 → E

8 0
2 years ago
Triangle EFG has the following vertices E(1,2), F(4,2) and G(1,6). What are the new coordinates of triangle E’F’G’ after it is r
Fynjy0 [20]

Answer:

i dont know but

Step-by-step explanation:

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7 0
2 years ago
Which of the following represents 76% as a fraction in simplest form? A. 37/50 B. 19/25 C. 39/50 D. 17/25
lakkis [162]
I hope this helps you



76%


76/100


4.19/4.25


19/25
8 0
3 years ago
Read 2 more answers
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