3 years ago

You bought a magazine for $5 and some erasers for $4 each. You spent a total of $33. How many erasers did you buy?

Mathematics

1 answer:

Serjik [45]3 years ago

4 0

Answer:7 erasers

Step-by-step explanation: keep the 5 and add 7x4=28 28+5=33

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The midpoint of is M(–1, –2). One endpoint is C(–9, –4). Find the coordinates of the other endpoint D.

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x coordinate of D = distance of 9 - 1 = 8 from point M

y coordinate of D = 4-2 = 2 from point M

so coordinates of D are (--1+8 , -2 + 2) = (7 , 0) answer

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3 years ago

Question 5<br> Find the value of x. (x refers to the angle)<br> 98°

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Step-by-step explanation:

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3. Tom was using wire of the following thicknesses 0.33 mm, 0.275 mm, 0.25 mm, and 0.3 mm for some electrical work. Order the wi

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3 years ago

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ryzh [129]

Answer:

5^3

Step-by-step explanation:

When it's multiplication you add the exponents.

Same with division, you subtract the exponents.

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5^3

I hope I could help!

6 0

3 years ago

Read 2 more answers

When the sun has risen 32 degrees above the horizon, Sandy casts a shadow that is 9 feet 2 inches long. How tall is Sandy, to th

Makovka662 [10]

Answer:

The height of Sandy is 68.74 inches.

Step-by-step explanation:

It is given that the sun has risen 32 degrees above the horizon. It means the angle of elevation is 32°.

Let the height of Sandy be x.

Sandy casts a shadow that is 9 feet 2 inches long.

We know that 1 feet = 12 inches

Using this conversion, we get

Shadow = 9 feet 2 inches = 9(12)+2 = 110 inches

In a right angled triangle,

$\tan\theta =\frac{perpendicular}{base}$

In triangle ABC,

$\tan(\angle C)=\frac{AB}{BC}$

$\tan(32^{\circ})=\frac{x}{110}$

Multiply both sides by 110.

$110\tan(32^{\circ})=x$

$68.73562871=x$

$x\approx 68.74$

Therefore the height of Sandy is 68.74 inches.

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3 years ago