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4 years ago

use the point slope form to find the linear equation of a line that passes through the points 2,-1 and 10,7

Mathematics

1 answer:

Elena-2011 [213]4 years ago

3 0

Answer:

Step-by-step explanation:

Y2-y1 , x2-x1

7-3=5

10-(-1=11

5/11 so y=5/11x is the answer

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Please help! Will mark brainliest. The answer is 1.96 but I need to know to they got the answer.

nadya68 [22]

Here we are looking to find the critical value Z.

When alpha is 0.05:

0.05/2=.025

Using your z chart this would equal 1.96 positive or negative. Hope this helps!

3 0

3 years ago

Prove that all integers from n to n+m is given by

ch4aika [34]

Answer:

no need to prove ,I believe you

Step-by-step explanation:

i believe you

6 0

3 years ago

Please help i have an exam next week and im really stuck on this

ruslelena [56]

Answer:

Area = 96 square cm

Step-by-step explanation:

Area of the figure = (2 x Area of triangles) + Area of square

$Area \ of \ triangle = \frac{1}{2} \times base \ height = \frac{1}{2} \times 8\times 4 = 16cm^2\\\\Area \ of \ square = side \times side = 8 \times 8 = 64cm^2$

Therefore, $Area \ of \ the\ figure = (2 \times 16) + 64 = 32 + 64 = 96cm^2$

6 0

3 years ago

Read 2 more answers

Find the approximate length of EF.

Yuri [45]

Answer:

The correct option is B

Step-by-step explanation:

Given information: ∠F=32°,∠D=54° and DF=18m.

According to the angle sum property of triangle, the sum interior angles of a triangle is 180°.

Using angle sum property, we get

$\angle D+\angle E+\angle F=180^{\circ}$

$54^{\circ}+\angle E+32^{\circ}=180^{\circ}$

$\angle E+86^{\circ}=180^{\circ}$

$\angle E=180^{\circ}-86^{\circ}$

$\angle E=94^{\circ}$

Law of sine:

$\frac{\sin A}{a}=\frac{\sin B}{b}=\frac{\sin C}{c}$

Using law of sine we get

$\frac{\sin D}{d}=\frac{\sin E}{e}$

$\frac{\sin D}{EF}=\frac{\sin E}{DF}$

$\frac{\sin 54^{\circ}}{EF}=\frac{\sin 94^{\circ}}{18}$

$\frac{0.809016994375}{EF}=\frac{0.99756405026}{18}$

Cross multiply,

$0.809016994375\times 18=0.99756405026\times EF$

Divide both sides by 0.99756405026.

$EF=14.5978655656$

$EF\approx 14.6$

The value of EF is 14.6 m. Therefore the correct option is B.

7 0

3 years ago

five twice the sum of a number and 3 is the same as 3 multiplied by 1 less than twice the number. what is the number?

aleksklad [387]

Answer: -4.5, but only if the phrase "five twice the sum . . ." means 5*2*(the sum of . . .). "five twice" is confusing, so please check the question.

Step-by-step explanation:

5*2*(X + 3) = 3*(2X - 1)

10X + 15 = 6X -3

4X = -18

X = -18/4

X = - 4.5

5 0

3 years ago