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Mkey [24]
3 years ago
5

HELP PLEASE EASY MATH

Mathematics
2 answers:
zzz [600]3 years ago
8 0

Answer:

C

Step-by-step explanation:

solong [7]3 years ago
8 0

Answer:

C

Step-by-step explanation:

y=mx+b, mx being the slope and b being the y-intercept. The answer is C.

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7/2x+1/2=10 1/2+9/2x what is the value of x
gogolik [260]

Answer:

21

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Find the value of y.
stepladder [879]

Answer:

10

Step-by-step explanation:

5 0
3 years ago
Maria invested $450 in a savings account and earned $126 in interest at the end of 7 years.
Brut [27]
The interest rate is B. 4%

Given:
Principal = 450
Interest = 126
term = 7 
rate = ?

Simple Interest is computed by multiplying the Principal, rate, and term.

Interest = P × r × t

126 = 450 × r × 7
126 = 3150r
r = 126/3150
r = 0.04 x 100% = 4%

To check:

I = 450 
× 0.04 x 7
I = 18 × 7
I = 126
5 0
2 years ago
On a graphing calculator, you can use the function normalcdf(lower bound, upper bound, μ, σ) to find the area under a normal cur
larisa86 [58]

Answer:

99.87% of cans have less than 362 grams of lemonade mix

Step-by-step explanation:

Let the the random variable X denote the amounts of lemonade mix in cans of lemonade mix . The X is normally distributed with a mean of 350 and a standard deviation of 4. We are required to determine the percent of cans that have less than 362 grams of lemonade mix;

We first determine the probability that the amounts of lemonade mix in a can is less than 362 grams;

Pr(X<362)

We calculate the z-score by standardizing the random variable X;

Pr(X<362) = Pr(Z

This probability is equivalent to the area to the left of 3 in a standard normal curve. From the standard normal tables;

Pr(Z<3) = 0.9987

Therefore, 99.87% of cans have less than 362 grams of lemonade mix

4 0
3 years ago
9. What is the coefficient of y^2? in the expansion of (x + y)^2??
klemol [59]

Answer:

The coefficient of y² will be 1, which we can see when we expand the expression:

(x + y)²

= (x +y)(x + y)

= x² + xy + xy + y²

= x² + 2xy + y²

3 0
2 years ago
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