3 years ago

9.

Mathematics

1 answer:

marishachu [46]3 years ago

3 0

Answer:

A. -4-3x>7

Step-by-step explanation:

-4-3(-5)>7

-4-(-15)>7

11>7

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-3(x + 1) + 7x + 8 = 5x - x + 6 - 2

Karo-lina-s [1.5K]

Answer: 5=4 (empty set)

Step-by-step explanation:

(-3x + 7x) + (-3+ 8) = (5x + -x) + (6+-2)

4x + 5 = 4x + 4

Each 4x cancel each other out

5=4

7 0

3 years ago

Solving a right triangle (ROUND TO THE NEAREST TENTH)

Kay [80]

Answer:

see explanation

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the given angles from 180 for B

B = 180° - (90 + 40)° = 180° - 130° = 150°

--------------------------------------------------------------

sin40° = $\frac{opposite}{hypotenuse}$ = $\frac{a}{21}$

Multiply both sides by 21

21 × sin40° = a, thus

a ≈ 13.5 ( to the nearest tenth )

--------------------------------------------------------------

cos40° = $\frac{adjacent}{hypotenuse}$ = $\frac{b}{21}$

Multiply both sides by 21

21 × cos40° = b, thus

b ≈ 16.1 ( to the nearest tenth )

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3 years ago

Caroline delivers flowers and earns $1.25 for each rose and $0.75 for each daisy. What is her total pay for a week in which she

SCORPION-xisa [38]

Answer:

She will be paid $684

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3 years ago

These two triangles can be shown to be congruent using which transformation?

Vladimir [108]

Answer:

This is B) A reflection over the y-axis.

Step-by-step explanation:

You can tell this in a picture due to the fact that each point on the corresponding triangle is equidistant from the y-axis. Take the point at the bottom for instance. In both pictures, it is 2 spaces away from the y axis.

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3 years ago

Whats the answer to. 9(x+3)=4 x-3

lys-0071 [83]

X=-6
you could either multiply 9 on both sides or distribute the 9 and isolate the variable

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3 years ago