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3 years ago

What is -4(7+10)-2v+4v

Mathematics

2 answers:

liberstina [14]3 years ago

8 0

-68-6v
(negative 68 minus 6v)

mylen [45]3 years ago

5 0

2v=-68 I believe is the answer

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Will make brainliest with correct answer

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

8² = 64

6² = 36

64 + 36 = 100

√100 = 10

8 0

3 years ago

What is true about △ABC? Select three options

rjkz [21]

Answer:

A) AB ⊥ AC

B) The triangle is a right triangle.

C) The triangle is an isosceles triangle

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance AB

we have

$A(-1,3), B(-5,-1)$

substitute in the formula

$d=\sqrt{(-1-3)^{2}+(-5+1)^{2}}$

$d=\sqrt{(-4)^{2}+(-4)^{2}}$

$d_A_B=\sqrt{32}\ units$

step 2

Find the distance BC

we have

$B(-5,-1),C(3,-1)$

substitute in the formula

$d=\sqrt{(-1+1)^{2}+(3+5)^{2}}$

$d=\sqrt{(0)^{2}+(8)^{2}}$

$d_B_C=8\ units$

step 3

Find the distance AC

we have

$A(-1,3),C(3,-1)$

substitute in the formula

$d=\sqrt{(-1-3)^{2}+(3+1)^{2}}$

$d=\sqrt{(-4)^{2}+(4)^{2}}$

$d_A_C=\sqrt{32}\ units$

step 4

Compare the length sides of triangle

$d_A_B=\sqrt{32}\ units$

$d_B_C=8\ units$

$d_A_C=\sqrt{32}\ units$

therefore

The triangle ABC is an isosceles triangle, because has two equal sides

The triangle ABC is a right triangle because satisfy the Pythagoras theorem

$BC^2=AB^2+AC^2$

$8^2=(\sqrt{32})^2+(\sqrt{32})^2$

$64=32+32$

$64=64$ ----> is true (Is a right triangle)

AB ⊥ AC because in a right triangle the legs are perpendicular

5 0

3 years ago

Read 2 more answers

-3+ 4d - 2f + 3d + 6f - 4 - 8

Igoryamba

Answer:

Explanation:

-3 + 4d - 2f + 3d + 6f - 4 - 8

= −3 + 4d + −2f + 3d + 6f + −4 + −8

Combine Like Terms

= −3 + 4d + −2f + 3d + 6f + −4 + −8

(4d + 3d) + (−2f + 6f) + (−3 + −4 + −8)

7d + 4f + −15

= 7d + 4f - 15

5 0

3 years ago

Catapillar is 2.15 inches long a Nother caliphate older is 1.9 inches long Robert you say quite picture do you find the cut by d

saw5 [17]

You messed up your writing on this question I can't help.if I can't read it

7 0

3 years ago

Can someone please help me find the missing side?

pishuonlain [190]

Answer:

x ≈ 6.2

Step-by-step explanation:

To find x using trig. ratios we require to find the hypotenuse of the right triangle on the left.

From the right triangle on the right we can calculate the hypotenuse.

sin53° = $\frac{opposite}{hypotenuse}$ = $\frac{opp}{30}$

Multiply both sides by 30

opp = 30 × sin53° ≈ 24

Thus the length of the hypotenuse of the triangle on the left is 24, hence

cos75° = $\frac{adjacent}{hypotenuse}$ = $\frac{x}{24}$

Multiply both sides by 24

x = 24 × cos75° ≈ 6.2

8 0

3 years ago

Read 2 more answers