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2 years ago

Decide if this statement is true or false. x = 2 if and only if | x1 = 2 A.true B. False

Mathematics

1 answer:

diamong [38]2 years ago

6 0

Answer:

true, do u need an explanation?

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PLEASE FAST IF YOU DO THANK You SO MUCH

Katen [24]

Answer:

Prism surface area: 1,271cm

Base area: 66cm

Lateral: 1,139cm

8 0

3 years ago

On an algebra quiz, Alice got 24 problems correct and 4 incorrect. What is the ratio of correct problems to the total number of

VladimirAG [237]

Answer:

24:28

Step-by-step explanation:

Alice got 24 problems correct.

She also got 4 problems incorrect.

28 is the total amount of problems because of 24+4=28.

Hope this helps =]

5 0

3 years ago

In ΔBCD, the measure of ∠D=90°, the measure of ∠C=83°, and DB = 95 feet. Find the length of BC to the nearest tenth of a foot.

Paha777 [63]

Answer:

95.7

Step-by-step explanation:

\sin C = \frac{\text{opposite}}{\text{hypotenuse}}=\frac{95}{x}

sinC=

hypotenuse

opposite

\sin 83=\frac{95}{x}

sin83=

x\sin 83=95

xsin83=95

Cross multiply.

\frac{x\sin 83}{\sin 83}=\frac{95}{\sin 83}

sin83

xsin83

sin83

Divide each side by sin 83.

x=\frac{95}{\sin 83}=95.7134\approx 95.7\text{ feet}

sin83

=95.7134≈95.7 feet

Type into calculator and roundto the nearest tenth of a foot.

8 0

3 years ago

Plz helppppp I need this or ima help plz help as fast as possible ASAP

melisa1 [442]

The first and last one are the same the teo middle ones are the same. the two middle ones equal -20 and the last and first one equal 20. this is for the question above problem 3.2

5 0

3 years ago

A rectangle has a height to width ratio of 3:4.5. Give two examples of dimensions for rectangles that could be scaled versions o

OlgaM077 [116]

We have been given that a rectangle has a height to width ratio of 3:4.5.

Let h be height and w be width of rectangle.

We can set our given information in an equation as:

$\frac{h}{w} =\frac{3}{4.5}$

$h=\frac{3}{4.5} *w$

Now we will substitute h=1 in this equation.

$1=\frac{3}{4.5} *w$

$3w=4.5$

$w=\frac{4.5}{3} =1.5$

We can see that width of rectangle is 1.5 times height of rectangle.

Our one set of dimensions of rectangle will be: height=1 and width=1.5.

We can get many set of dimensions for our rectangle by multiplying both height and width of rectangle by same number.

Multiplying by 5 we will get our dimensions as: height 5 and width 7.5.

Therefore, (1 and 1.5) and (5 and 7.5) dimensions for rectangle will be scaled version of our rectangle.

6 0

3 years ago