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2 years ago

Can someone help me with my math? it is about 45 questions and wont take too long :(

Mathematics

2 answers:

tensa zangetsu [6.8K]2 years ago

8 0

The slope is the change in Y over the change in X.

Use the two blue dots on the graph :

(-1,0) ans (3,4)

Slope = (4 - 0) / (3 - -1)

= 4 / 4

= 1

ad-work [718]2 years ago

7 0

Answer:

The answer to your question is: slope = 1

Step-by-step explanation:

Data

Find 2 points of the graph and find the slope

Then use the formula point - slope to find the equation of the line

Points

A (-1 , 0)

B (3, 4)

m = $\frac{4 - 0}{3 + 1} = \frac{4}{4}$

m = 1

Line equation

( y - y1) = m (x -x1)

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garik1379 [7]

Answer:

$11,520

Step-by-step explanation:

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6 0

3 years ago

Find the area of Pentagon ABCDE in which BL perpendicular to AC, CM perpendicular to AD, EN perpendicular to AD such that AC = 8

deff fn [24]

Answer:

Area ABCDE = 82 cm²

Step-by-step explanation:

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2 years ago

Solve for x solve for x

alekssr [168]

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Let me know if you have questions.

7 0

2 years ago

Which of the following is the algebraic expression that best describes the sequence 3, 9, 27, 81, 243,...?

DIA [1.3K]

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4 0

3 years ago

Given u = −8i − 3j and v = −12i − 7j, what is projvu?

8090 [49]

Answer:

(b) -7.275i -4.244j

Step-by-step explanation:

The projection of vector u onto vector v is the product of the unit vector v, the magnitude of vector u, and the cosine of the angle between them.

The dot product gives the product of the magnitudes of the two vectors and the cosine of the angle between them. To find the projection, we must divide the dot product by the magnitude of v and multiply by the unit vector in the direction of v.

$proj(u,v)=(\vec{u}\cdot\vec{v})\cdot\dfrac{\vec{v}}{|\vec{v}|^2}=\dfrac{((-8)(-12)+(-3)(-7))(-12\vec{i}-7\vec{j})}{(-12)^2+(-7)^2}\\\\=\dfrac{-(96+21)(12\vec{i}+7\vec{j})}{144+49}=-\dfrac{117}{193}(12\vec{i}+7\vec{j})\approx\boxed{-7.275\vec{i}-4.244\vec{j}}$

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2 years ago