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Alexeev081 [22]
3 years ago
6

PLEASE HELPPPPP MATH

Mathematics
2 answers:
Artist 52 [7]3 years ago
8 0

Answer:

After 30 weeks.

Step-by-step explanation:

250 + 25*30 = 1000

400 + 20*30 = 1000

Stels [109]3 years ago
6 0

Answer:

Use the equation 250+25w=400+20w

Step-by-step explanation:

Replace w with one of the answers until you get the right one.

pretty sure its 35 but I don't have a calculator with me so double check

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Find the area of each circle. Use 3.14 for pi. 22m
PilotLPTM [1.2K]

Step-by-step explanation:

area =  {\pi}r^{2}

A= 3.14 × 22^2

A = 1519.78 m^2

5 0
3 years ago
Calculate the coefficient of x4y18 in the expansion of (x − y)22
Oksana_A [137]
Binomial theorem:

(x-y)^n=\displaystyle\sum_{k=0}^n\binom nkx^k(-y)^{n-k}

The term with x^4y^{18} corresponds to n=18+4=22 and k=4 (or k=18, since \dbinom nk=\dbinom n{n-k}).

So, the coefficient of this term is

\dbinom{22}4(-1)^{18}=\dbinom{22}4=\dfrac{22!}{4!(22-4)!}=7315
4 0
3 years ago
Please find the value of x with explaination​
sattari [20]

the value of x is 36. is it right or wrong?

6 0
3 years ago
For the vectors u and v with magnitudes u = 88 and v = 99​, find the angle θ between u and v which makes u and v = 77.
WARRIOR [948]

Answer:

<h2>89.5°</h2>

Step-by-step explanation:

Using the vector formula u.v = |u||v|cos\theta

|u| = magnitude of vector u

|v| = magnitude of vector v

u.v is the dot product of vector u and v

Given |u| = 88, |v| = 99 and u.v = 77, to get \theta we will substitute the given values into the equation above;

77 = 88*99cos\theta\\cos\theta = \frac{77}{88*99} \\cos\theta = \frac{77}{8712} \\cos\theta = 0.008838\\\theta = cos^{-1} 0.008838\\\theta = 89.5^{0}

4 0
3 years ago
To make 5 apple pies you need 2 pounds of apples how many pounds of apples do you need to make 20 Apple pies
Vanyuwa [196]
8 pounds. Because you'll need 4 pounds to make 10 apple pies, 6 pounds to make 15 apple pies, and 8 pounds to make 20 apple pies.
5 0
3 years ago
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