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3 years ago

PLEASE HELP QUICKLY 20 POINTS!!!

Mathematics

2 answers:

Luden [163]3 years ago

8 0

2 - 6 ( -5t + 1 )

Distribute the 6 to the numbers inside the parenthesis (PEMDAS)

2 - 6*- 5t - 6*1

= 2 + 30t - 6

= 30t - 4

Option C is correct.

sergeinik [125]3 years ago

6 0

2 - 6 ( -5t + 1 )

Apply distributive property first:

2 - 6*-5t -6*1

Simplify:

2+30t -6

Combine like terms:

30t - 4

The answer is C.

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Please answer 76 and 77 for brainlest answer and please show work !

Anvisha [2.4K]

Answer:76 D 77 C

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3 years ago

Consider a triangle A B C like the one below. Suppose that B = 57°, C= 65°, and a = 48. (The figure is not drawn to scale.) Solv

Komok [63]

Answer:

A = 58 degrees

b = 51.9

c = 48.5

Step-by-step explanation:

To find A we simply just need to remember that all triangles add up to 180 degrees and we are already given two angles of the triangle so....

$57 + 65=122$

$122+58=180$

$A=58$

To find sides b and c we use the law of sines since we now know the angle of each side.

$a=48$

$b=48\times\frac{sin65}{sin57} =51.87$

$51.87$

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$51.9$

$b=51.9$

$c=48\times\frac{sin58}{sin57} =48.54$

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Hope this helps.

5 0

3 years ago

19. A teacher tells 36 students to form 4 equal groups. Write and solve a

olchik [2.2K]

4 x = 36

Step-by-step explanation:

Because the groups have an equal number of students, we assume that each of the groups has x number of students.

Therefore since there is x number of students in each of the 4 groups, there is 4 * x number of total students in all groups combined.

Since the question already indicates that there are a total of 36 students in the class, then we can indicate that..

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3 years ago

A number D is less than or equal to 2 and greater than or equal to negative 2

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$D \le 2$

$D \ge -2$

$-2 \le D$

$-2 \le D \le 2$

Answer: -2 ≤ D ≤ 2

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3 years ago

The window in Mr. Rodriguez's attic is in two parts, each shaped like a trapezoid and each with identical dimensions.

MaRussiya [10]

Answer and Step-by-step explanation:

$First, ~multiply~base~and~height.~In~our~case~the~base~is~30~inches~and$ $the~height~is~12~inches.$ $Then,~we 'll~take~16~inches~and~multiply~it~with~12~inches$

So, it'll be :

$30~inches$ × $12~inches$ $=360~inches$

$16~inches$ × $12~inches=192~inches$

$Now,~that~we've~got~ 360 ~and~ 192~ as~ our~ answers ~we ~add~ them ~up..$

Like this :

 $360+192=552$ 

 $And,~that's~our~final~answer!-522~in^2$ 

4 0

3 years ago

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