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SVETLANKA909090 [29]
3 years ago
10

What is -40+7r=-5(8+5r)

Mathematics
1 answer:
Nuetrik [128]3 years ago
3 0

Answer:

r= -40/9 or r=-4 4/9

Step-by-step explanation:

You're welcome :)

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A truck with a heavy load drove from Boston to New York at 50 mph. After dropping of the load, it returned from New York to Bost
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Answer:

An average of 60mph.

Step-by-step explanation:

The average is the mean.

(50 + 70)/2 = 60

Please mark Brainliest if this helps!

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3 years ago
A group of students were surveyed to find out if they like watching television or reading during their free time. The results of
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6 0
2 years ago
Use parallelogram JKLM to find the length of JK.
shepuryov [24]
Opposite sides are congruent in a parallelogram.

so,

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3 years ago
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svetoff [14.1K]

\angle FHD=74^{\circ} (alternate segment theorem)

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3 0
2 years ago
If the angles are represented in degrees, find both angles:<br> cos(8x+18)=sin(−2x+36)
larisa [96]

Answer:

24 and 66degrees

Step-by-step explanation:

Given the equation

cos(8x+18)=sin(−2x+36)

In trigonometry identity, cos theta = sin (90- theta)

The given expression becomes;

sin (90 - (8x+18)) = sin(−2x+36)

sin will cancel out to have;

90 - (8x+18) = (−2x+36)

90-8x-18 = -2x+36

-8x +72 = -2x+36

-8x + 2x = 36 - 72

-6x = -36

x = 36/6

x = 6

Hence the value of x is 6

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= cos  66

Also

sin(−2x+36)

= sin(−2(6)+36)

= sin(−12+36)

= sin 24

Hence both angles are 24 and 66degrees

7 0
3 years ago
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