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3 years ago

I really need some help it's hard to understand

Mathematics

1 answer:

Murljashka [212]3 years ago

6 0

I think it’s 96 I might be wrong sorry if I am

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-2x+3=9. What does x equal?

Dimas [21]

Answer:

Step-by-step explanation:

$- 2x + 3 = 9 \\ - 2x = 9 - 3 \\ - 2x = 6 \\ \frac{ - 2x}{ - 2} = \frac{6}{ - 2}$

$x = - 3$

3 0

3 years ago

Read 2 more answers

if someone could please please help me with this I would appreciate it , if you could also explain your answer that would be gre

weqwewe [10]

Answer:

height for the building = 551.8 ft

Step-by-step explanation:

The info given describes the shape of a right triangle.

Thus:

Reference angle = Angle of elevation = 23°

Opposite side = height of the building = ?

Adjacent side = 1,300 ft

Apply trigonometric function, TOA:

Tan 23 = Opp/Adj

Tan 23 = Opp/1,300

1,300 × Tan 23 = Opp

551.817261 = Opp

Opp ≈ 551.8 ft

height for the building = 551.8 ft

3 0

2 years ago

The slope of the graph below is:

Paladinen [302]

Answer:

Step-by-step explanation:

i know u do rise over run so that will give you uor answer

im not very smart when it comes to math

sorry i couldnt help

3 0

2 years ago

What is the value represented by "y" in the equivalent ratio: 10:45 = 2:y? *

Andrei [34K]

Answer:

Step-by-step explanation:

2 x 5 = 10

9 x 5 = 45

10:45 = 2:9

7 0

2 years ago

Mariana walked 3/10 mile to the park. Later, she walked 1/4 mile to a friend's house. Then she walked 2/5 mile home. How many mi

Paladinen [302]

Answer:

19/20 of a mile.

Step-by-step explanation:

$\frac{3}{10} + \frac{1}{4} + \frac{2}{5}$

The common denominator is 20 so we times the first one by 2 the second one by 5 and the last one by 4. (Both numerator and denominator.)

You will end up with this $\frac{6}{20} + \frac{5}{20} + \frac{8}{20} = \frac{19}{20}$

7 0

3 years ago