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3 years ago

Plz help me quickly it’s due very soon!!!!

Mathematics

1 answer:

horsena [70]3 years ago

4 0

Answer:

Step-by-step explanation:

Both angles together equal 180. Set up your formula as

-4x+5+-13x+39 = 180

Now move your terms to have all x values on one side

-4x-13x = 180-5-39

-17x = 136

x=136 / -17

Use this answer in place of your x in each equation to get the angle.

You got this!

You might be interested in

Let f(x) be a continuous function such that f(1) = 3 and f '(x) = sqrt( x^3 + 4 ). What is the value of f(5)?

snow_lady [41]

The value of f(5) is 49.1

Step-by-step explanation:

To find f(x) from f'(x) use the integration

f(x) = ∫ f'(x)

1. Find The integration of f'(x) with the constant term

2. Substitute x by 1 and f(x) by π to find the constant term

3. Write the differential function f(x) and substitute x by 5 to find f(5)

∵ f'(x) = + 6

- Change the root to fraction power

∵ =

∴ f'(x) = + 6

∴ f(x) = ∫ + 6

- In integration add the power by 1 and divide the coefficient by the

new power and insert x with the constant term

∴ f(x) = + 6x + c

- c is the constant of integration

∵

∴ f(x) = + 6x + c

- To find c substitute x by 1 and f(x) by π

∴ π = + 6(1) + c

∴ π = + 6 + c

∴ π = 6.4 + c

- Subtract 6.4 from both sides

∴ c = - 3.2584

∴ f(x) = + 6x - 3.2584

To find f(5) Substitute x by 5

∵ x = 5

∴ f(5) = + 6(5) - 3.2584

∴ f(5) = 49.1

7 0

3 years ago

Select the correct answer.

Tanya [424]

Answer:

The function f has an inverse because it is one-to-one.

Step-by-step explanation:

The condition for a function to have an inverse is that every x coordinate maps to a single y - coordinate. As illustrated by the diagram attached in the second picture, every x value maps to one y value therefore satisfying the condition making the function have an inverse.

8 0

2 years ago

×/5 + 9 = 4 please solve the equation

iren [92.7K]

Assuming you are solving for x

do the opposite of PEMDAS. Isolate the x. Because of equal sign, what you do to one side, you do to the other.

x/5 + 9 = 4

x/5 + 9 (-9) = 4 (-9)

x/5 = 4 - 9

x/5 = -5

x/5(5) = -5(5)

x = -5(5)

x = -25

-25 is your answer for x

hope this helps

8 0

3 years ago

Read 2 more answers

Find the volume of the sphere whose radius is 0.8 cm

vekshin1

Answer:

2.14 cm^3

Step-by-step explanation:

V = 4/3 pi r^3

V = 4/3 pi 0.512

V = 2.14

8 0

4 years ago

Read 2 more answers

A college entrance exam company determined that a score of 24 on the mathematics portion of the exam suggests that a student is

seraphim [82]

Answer:

a) The Z -value 2.397 < 2.576 at 99% or 0.01% level of significance

Null hypothesis is accepted at 0.01% level of significance

They score is above 24 on the math portion of the exam

b)

Null Hypothesis: There is no significance difference between the college level mathematics and math courses in high school

H₀: μ = 24

Alternative Hypothesis: H₁: μ ≠ 24

Step-by-step explanation:

Step(i):-

Given random sample 'n' = 250

Given data sample mean x⁻ = 24.5

Standard deviation = 3.3

Null Hypothesis: There is no significance difference between the college level mathematics and math courses in high school

H₀: μ = 24

Alternative Hypothesis: H₁: μ ≠ 24

test statistic

$Z = \frac{x^{-} - mean}{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{24.5 - 24}{\frac{3.3}{\sqrt{250} } } = \frac{0.5}{0.2087} = 2.397$

a) 99% or 0.01% level of significance

Level of significance ∝ = 0.01

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.005} =2.576$

The Z -value 2.397 < 2.576 at 99% or 0.01% level of significance

Null hypothesis is accepted at 0.01% level of significance

They score is above 24 on the math portion of the exam

b) 95% or 0.05% level of significance

Level of significance ∝ = 0.05

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.05}{2} } = Z_{0.025} = 1.96$

The Z -value 2.397 > 1.96 at 95% or 0.05% level of significance

Null hypothesis is Rejected at 0.05% level of significance

They score is below 24 on the math portion of the exam

6 0

3 years ago