MATHEMATICS MIDDLE SCHOOL

Please help. I don't understand trig and I'm running out of points

Answers

Answer 1

Answer:

Answer:

0.07

Step-by-step explanation:

We can write Sin 4° as the following

Sin 4°

= Sin (22° - 18°)

= Sin 22° Cos 18° - Cos 22° Sin 18°

{Since, we know the formula that Sin (A - B) = Sin A Cos B - Cos A Sin B}

= 0.3726 × 0.9511 - 0.9272 × 0.3090

{Since, given that Sin 22° = 0.3726, Cos 18° = 0.9511, Sin 18° = 0.3090 and Cos 22° = 0.9272}

= 0.3566 - 0.2865

= 0.07 (Answer)

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Evaluate each function rule. Find y for x=0, 1, 2, and 3. Construct a function table for each problem.y=3x+1

Answers

sub x values for x
0,1,2
y=3(0)+1=1
y=3(1)+1=4
y=3(2)+1=7
y=3(3)+1=10

table

x=0,1,2,3
y=1,4,7,10

Can you help me with this question

Answers

V = A * h;
V = volume of the building;
h = 35 m ;
A = the area of floor plan;
A = 30 ^2 + π*15^2 - (π*15^2) / 4 => A = 900 + π*675 / 4 ≈
900 + 3.14*675 / 4 ≈ 900 + 529.87 ≈ 1429.87m^2
V ≈ 50045.45 m^3

Would 15.75 be as a fraction 15/750

Answers

to convert decimals to fractions is easy
.75=75/100 or 3/4

so 15.75=63/4

also since 15/7500 is less than one, it cannot be equivilent to 15.75

no, 0.75 is 3/4 and 15 is 60/4 therefor add them together to get 63/4, which can't be cancelled down. Therefor 15.75 is 63/4 as a fraction. It is not 15/7500 15 is smaller than 7500 therefor there would be no whole numbers. Remember a fraction is one thing dividing by another.

Can u please answer my question

Answers

1st Step:We should first change them all to have a common denominator.
2nd Step:We should find the least common multiple
4×1=4 8×1=8 16×1=16
4×2=8 8×2=16
4×3=12
4×4=16
LCM is 16

$(1*4)/(4*4)$ + $(1*2)/(8*2)$ + $(1)/(16)$
$(4)/(16)$ + $(2)/(16)$ + $(1)/(16)$
$(7)/(16)$

$(7)/(16)$ is the fraction of the page that is used in total.

turn the denominators into the same number by multipling them
same to top as to bottom so
1/4 =4/16
1/8= 2/16
1/16 stays the same

add together to get 7/16

Solve.
8+h>2+3h
A) h>3
B) h>4
C) h<3
D) h<4

Answers

8 + h > 2 + 3h
h - 3h > 2 - 8 . . . . . . . . (collecting like terms)
-2h > -6
h < -6/-2 . . . . . . . . (> changes to < when you divide with negative number and vice-versa)
h < 3 (i.e. the third option)

Order from least to greatest 4.08 4.34 4.803 of 4.038