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aniked [119]
3 years ago
8

Word Problems

Mathematics
1 answer:
Mashutka [201]3 years ago
8 0

Answer:

a. 280

b. 520

Step-by-step explanation:

multiply 800 by. 35 to get the number of girls then, subtract that number from 800.

You might be interested in
How do you solve this (x+3)+(7x+2)
VladimirAG [237]

Answer:

8x + 5

Explanation:

x + 3 + 7x + 2

Combine Like Terms

= x + 3 + 7x + 2

= (x + 7x) + (3 + 2)

= 8x + 5

8 0
3 years ago
Read 2 more answers
I didn’t do this but my friend needs help so help
yuradex [85]

Answer:

1. X = 14

2.X =13

Step-by-step explanation:

The angles are 90 degrees. I did math to check if the x values are correct and they are.

8 0
3 years ago
Given the first term and the common ratio of a geometric sequence find the explicit formula.
lisov135 [29]

A geometric sequence is generated by multiplying the first term in the sequence, a_1, several times by a fixed scalar r. So

a_2=a_1r

a_3=a_2r=a_1r^2

a_4=a_3r=a_1r^3

and so on, down to

a_n=a_{n-1}r=a_{n-2}r^2=\cdots=a_1r^{n-1}

Using the result above, the sequences you're interested in are

31) a_n=-(-2)^{n-1}

33) a_n=4(-4)^{n-1}

We can rewrite these results to make them slightly cleaner.

-(-2)^{n-1}=-(-1)^{n-1}2^{n-1}=(-1)^n2^{n-1}

4(-4)^{n-1}=4(-1)^{n-1}4^{n-1}=(-1)^{n-1}4^n

6 0
3 years ago
Based on the provided information about the characteristic roots and the right hand side function g(t), determine the appropriat
Rufina [12.5K]

Answer:

Yp = t[Asin(2t) + Acos(2t)]

Yp = t²[At² + Bt + C]

Step-by-step explanation:

The term "multiplicity" means when a given equation has a root at a given point is the multiplicity of that root.

(a) r1=-2i; r2=2i g(t)=2sin(2t) + 3cos(2t)

As you can notice the multiplicity of this equation is 1 since the roots r1 = 2i and r2 = 2i appear for only once.

The form of a particular solution will be

Yp = t[Asin(2t) + Acos(2t)]

where t is for multiplicity 1

(b) r1=r2=0; r3=1 g(t)= t² +2t + 3

As you can notice the multiplicity of this equation is 2 since the roots r1 = r2 = 0 appears 2 times.

The form of a particular solution will be

Yp = t²[At² + Bt + C]

where t² is for multiplicity 2

6 0
3 years ago
Giving brainliest 0.85 ? 7/8
Mumz [18]

Answer:

Option C, 0.85 < 0.875

Step-by-step explanation:

0.85 ? 7/8

<u>Convert 7/8 to decimal </u>

0.85 ? 0.875

0.85 < 0.875

Answer:  Option C, 0.85 < 0.875

6 0
3 years ago
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