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3 years ago

Help me please! It’s timed

Mathematics

1 answer:

Scrat [10]3 years ago

3 0

Answer:

x=36.08

Step-by-step explanation:

Given: From the given triangle DEF, ∠E= $90^{0}$

DF=55

and DE= x

To find the value of x

According to trigonometry rule,

$\frac{x}{55} =cos49^{0} \\x=55(cos 49^{0} )\\x=55(0.656)\\x=36.08$

Therefore, the value of x will be 36.08

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Which table has a constant of proportionality of 8/5

Fudgin [204]

Sorry there’s no info here

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3 years ago

What is the decimal equivalent of 7 4/5?

motikmotik

It should be 7.8 which is answer D

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3 years ago

Read 2 more answers

Please Help and write the equation down as well!!<br> I´ll mark whoever is right Brainiest!

wolverine [178]

Answer:

y=6x+4

Step-by-step explanation:

now the formula for slope-intercept is y=mx+b

Slope (aka m) is 6

[how I got the slope is every time it goes forward 1 it goes up 6 rise/run]

so y=6x+[y intercept]

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2 years ago

What is 39 squared? A. 39 B. 1,482 C. 1,521 D. 78

iogann1982 [59]

Hey There!

The answer to you're question is C, because squared means to the power of two. So, 39 * 39 is 1,521.

Have A Brainly Day!

5 0

3 years ago

Among 35 students in a class, 20 of them earned A's on the midterm exam, 13 earned A's on the nal exam, and 12 did not earn A's

enyata [817]

Answer:

The correct answer is " $\frac{2}{7}$ ".

Step-by-step explanation:

According to the question,

Number of students,

= 35

A ! mid term A,

$n(A) = 20$

B : final A,

$n(B) = 13$

Didn't start,

$n(A^c \cap B^c) = 12$

Now,

⇒ $n(A \cup B)=35-12$

$=23$

then,

⇒ $n(A \cup B)=20+13-23$

$=10$

hence,

The probability will be:

⇒ $P(A \cap B)=\frac{10}{35}$

⇒ $=\frac{2}{7}$

7 0

3 years ago