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anzhelika [568]

3 years ago

9

What is 84(0.5) not in decimal form

2 answers:

SpyIntel [72]3 years ago

6 0

Answer:

42

Step-by-step explanation:

pshichka [43]3 years ago

5 0

The answers to the question is 42

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At a special sale, all pens are sold at one price and all pencils at another price.If 3 pens and 2 pencils are sold for 47 cents

mezya [45]

3 pen + 2 pencil = .47
2 pen + 3 pencil = .38

2(3pen + 2 pencil = .47)
-3(2pen + 3 pencil = .38)

6 pen + 4 pencil = .94
-6 pen - 9 pencil = -1.14
- 5 pencil = -.2
pencil = .04

3pen + 2(.04) = .47
3pen + .08 = .47
3 pen + .08 - .08 = .47 -.08
3 pen = .39
pen = .13

Pen = 13 cents and pencil = 4 cents

4 0

3 years ago

Which of the following are solutions to the equation below?

katrin2010 [14]

First simplify then solve.

$4x^2+20x+25=49 \\4x^2+20x-24=0 \\4(x^2+5x-6)=0 \\x^2+5x-6=0\Longrightarrow(x+6)(x-1)=0 \\\boxed{x_1=-6, x_2=1}$

We find there are two solutions. In your case the correct answers are A, C, D

Hope this helps.

r3t40

Hope this helps.

r3t40

7 0

3 years ago

If the perimeter of the rectangle is 30 cm and value of j is 8.

dezoksy [38]

2j +2h =30. That is the equation

2(8) + 2h = 30
16+ 2h =30

Subtract 16 from both sides
2h = 14
H=7

4 0

3 years ago

Once I get it wrong, I can’t redo the same question again and I have to go onto the next question. I only have 5 questions but i

iris [78.8K]

Answer:

$\Huge\boxed{29.3}$

Step-by-step explanation:

Hello There!

<u>Remember The Trigonometric Ratios</u>

Sin = opposite divided by hypotenuse

Cos = adjacent divided by hypotenuse

Tan = opposite divided by adjacent

We need to find the measure of angle X given the opposite side length and hypotenuse

Opposite and hypotenuse correspond with sine so we are going to use sine to solve for x

We create an equation: $sin(x)=\frac{43}{88} \\$

$\frac{43}{88} =.4886363636\\sin(x)=.4886363636$

Now we want to get rid of the sin

To do so we take the inverse of sin (which would be arcsin) and apply it to each side

$arcsin^-^1(sinX)=x\\arcsin^-^1(.4886363636)=29.25099306$

finally we round to the nearest tenth

we're left with x = 29.3

7 0

3 years ago

Read 2 more answers

If set A={2, 3, 4, 5}, Set B ={0, 1, 6, 7, 5}, then these sets are a) Disjoint b) Supersets c) overlapping d) None

Harlamova29_29 [7]

Answer

overlapping

explanation:

This is overlapping set because at least one common element (5) is present in both set.

7 0

3 years ago