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krok68 [10]
3 years ago
12

Which of the following is a vertical stretch of the

Mathematics
2 answers:
Ratling [72]3 years ago
8 0

Answer:

Y= 4x^2

Step-by-step explanation:

First answer

Marianna [84]3 years ago
8 0

Answer: The first one is A the second one is D

Step-by-step explanation:

You might be interested in
Multiple the polynomial (4x^2 + 4x + 6)(7x + 5)
Mazyrski [523]

Answer:

28 x³ + 48 x² + 62 x + 30

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that the polynomial equation

            (4 x² + 4x +6)(7x+5)

Multiply

   ⇒   4 x² ( 7 x+5) + 4 x ( 7x+5) + 6 (7x+5)

  ⇒    28 x³ + 20 x² + 28 x² + 20 x + 42 x + 30

  ⇒    28 x³ + 48 x² + 62 x + 30

               

8 0
3 years ago
The graph represents f(x), and g(x) = 7x – 42.
Aliun [14]
g(x)=7x-42\\\\\y-intercept\ of\ g(x):\\\\f(0)=7\cdot0-42=-42\to(0;\ -42)\\\\x-intercept\ of\ g(x):\\\\0=7x-42\ \ \ \ |+42\\7x=42\ \ \ |:7\\x=6\to(6;\ 0)

f(x)=ax+b\\\\y-intercept\ of\ f(x):\ (0;\ -3)\\\\x-intercept\ of\ f(x):\ (6;\ 0)

Answer:

A) the y-intercept of g(x) is less than the y-intercept of f(x).


4 0
4 years ago
A company produces packages of granola and has changed its recipe. It claims that the proportion of almonds in how is the approp
vova2212 [387]

Answer:

The correct answer is

t = \frac{0.49-0.29}{\sqrt{\frac{(0.42)^2}{100} +}\frac{(0.29)^2}{100}  }

Step-by-step explanation:

To solve the question we note that the question involves a test statistic calculation given by

t = \frac{x_1-x_2}{\sqrt{\frac{s_1^2}{n_1} +}\frac{s_2^2}{n_2}  } Where

x₁ = Mean of sample 1

x₂ = Mean of sample 2

n₁ = Sample size of sample 1

n₂ = Sample size of sample 2

s₁ = Variance of sample 1

s₂ = Variance of sample 2

s₁ = ∑(x₁ - x₁')²/n₁,  s₂ = ∑(x₂ - x₂')²/n₂

The test statistic is a variable that is derived from a given data sample and is applied in hypothesis testing. The test statistic measures the available data against the expected value from the null hypothesis

With the given data, we have

t = \frac{0.49-0.29}{\sqrt{\frac{(0.42)^2}{100} +}\frac{(0.29)^2}{100}  }

4 0
3 years ago
Abdul has bought 30 pounds of dog food. He feeds his dog
Cerrena [4.2K]

Answer: I think its 45 days

Step-by-step explanation: hope this helps

6 0
3 years ago
Find the value of x ​
kodGreya [7K]

Answer:

See below, please

Step-by-step explanation:

(2x + 9) + (4x - 3) = 90

6x + 6 = 90

6x = 90 - 6 = 84

Hence

x = 14

8 0
3 years ago
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