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3 years ago

7p+3q for p=2 and q=-6

Mathematics

2 answers:

notsponge [240]3 years ago

8 0

Answer:

-4

Step-by-step explanation:

First we substitute in the values given for p and q. This results in $7(2)+3(-6)=14-18=-4$

monitta3 years ago

5 0

Answer:

-4

Step-by-step explanation:

7p + 3q where p = 2 and q = -6

7(2) + 3(-6)

14 + (-18)

-4

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What is 200% as a fraction

Paladinen [302]

Answer:

2 / 1

Step-by-step explanation:

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4 years ago

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 419 gram setting. It is

Dahasolnce [82]

Answer:

The calculated t- value = 1.09 > 3.19 at 0.025 level of significance

Null hypothesis is rejected

There is sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

Step(i):-

Given the mean of the Population(μ) = 419 grams

The sample size 'n' =19

Given mean of the sample x⁻ = 412

Given variance of the sample S² = 784

S = √784 = 28

Step(ii):-

Null hypothesis: H₀: There is no sufficient evidence to support the claim that the bags are underfilled.

Alternative hypothesis: H₁:

There is sufficient evidence to support the claim that the bags are underfilled.

Test statistic

$t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$

$t = \frac{412 -419}{\frac{28}{\sqrt{19} } }$

t = -1.09

|t| = |-1.09|

Degrees of freedom ν = n-1 = 19-1 =18

t₀.₀₂₅ = 3.19

Final answer:-

The calculated t- value = 1.09 > 3.19 at 0.025 level of significance

Null hypothesis is rejected

There is sufficient evidence to support the claim that the bags are underfilled

8 0

4 years ago

How do you find the vertex and axis of symmetry for this function, F(x)=3(x+1)^2

Andrews [41]

Answers:
Vertex is (-1,0)
Axis of symmetry is x = -1

============================================

Explanation:

F(x) = 3(x+1)^2
is the same as
y = 3(x-(-1))^2 + 0
which is in the form
y = a(x-h)^2 + k

We can see that
a = 3
h = -1
k = 0

Therefore the vertex is (h,k) = (-1,0)
The axis of symmetry is x = h = -1 which is the equation x = -1

The axis of symmetry in this case is a vertical line through the vertex.

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3 years ago

What is the length of the line

astraxan [27]

Answer:

d. 13

Step-by-step explanation:

a^2 + b^2 = c^2

5^2 + 12^2 = 13^2

25 + 144 + 169

5 0

3 years ago

Read 2 more answers

Evaluate f(x)=x+6 when x=−2,0, and 5.

Gekata [30.6K]

Answer:

f(-2) = 4

f(0) = 6

f(5) = 11

Step-by-step explanation:

You just need to plug in the different values of x into the equation

f(x)=x+6

When x = -2, then f(-2) = -2 + 6 = 4

When x = 0, then f(0) = 0 + 6 = 6

When x = 5, then f(5) = 5 + 6 = 11

6 0

3 years ago

Read 2 more answers