2.) Does the type of prenatal care affect a baby's birth weight? Researchers compared the birth wei of babies following four different types of prenatal care: no prenatal care at all, over-the coun prenatal vitamins, prescribed prenatal vitamins with irregular doctor visits, prescribed pren: vitamins with regular doctor visits. At the 5% significance level, what conclusions can be reach fe the 5.8 No Prenatal Care 5.9 6.2 5.6 5.7 6.1 6,0 Over-the-Counter 6.0 Vitamins Only 6.1 6.1 6.3 6.5 6.3 6.2 Irregular Doctor Visits 7.0 6.7 6.9 7.1 7.2 7.1 6.8 Regular Doctor Visits 7.1 7.6 7.5 6.9 7.4 7.2 7.3

Q: Y x² 2 2x + 1 x - 12

A:

Q: Please show each step mathematically for i, ii

A:

Q: X-y= 3 x+y = 5

A: Given equations x-y=3 x+y=5

Q: I also need the p value

A: (a) Now since the same student appears for the SAT twice, the scores are matched pairs. Hence the…

Q: 51° 151°

A:

Q: đ = , b = , = , d = Find đ +?

A: Given,  a→ = 2, 4b→ = -3, 5c→ = 1, -4d→ = -5, -3 We have to find a→+ c→.

Q: 22 V2 V3

A:

Q: Find the value of x.

A:

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.