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3 years ago

I NEED HELP ASAP about this question it’s for a test !

Mathematics

2 answers:

Yanka [14]3 years ago

8 0

Answer:

b. 2.50x

you multiply 2.50 by x Hugh decides to buy.

Lilit [14]3 years ago

6 0

Answer:

0.25

Step-by-step explanation:

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3 to the x power - 1 = 9 to the x power+2

Tom [10]

So we need to solve:

3ˣ⁻¹ = 9ˣ⁺²

To do this, we need to have the same base for both sides of the equation.

So let's go with the base of 3.

3² = 9

3ˣ⁻¹ = (3²)ˣ⁺²

3ˣ⁻¹ = 3²ˣ⁺⁴

Since the bases are the same now, we need to get rid of them and we would get:

x - 1 = 2x + 4

Subtract both sides by 2x:

-x - 1 = 4

Add 1 to both sides:

-x = 5

Divide both sides by -1:

x = -5

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3 years ago

If a point is reflected over the y-axis, then the coordinates of (x, y) are changed to ______________.

Alisiya [41]

Answer:

its opposite

Step-by-step explanation:

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2 years ago

Given that sin63= 0.891 enter the cosine of a complementary angle

PSYCHO15rus [73]

Answer:

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Step-by-step explanation:

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3 years ago

PLEASE HELP!!!!!!! ALSO SHOW WORK

Dimas [21]

Answer: a) 92 yards, b) 29.29 yards and 672.99 sq. yd.

Step-by-step explanation:

Since we have given that

Area of square pen = 529 sq. yd

Let the length of each side be 'a'.

As we know the formula for "Area":

$Area=a^2\\\\529=a^2\\\\\sqrt{529}=a\\\\a=23\ yd$

So, the perimeter of the square pen is given by

$4\times s=4\times 23\\\\=92\ yd$

So, perimeter of square pen = Perimeter of round pen

$92=2\pi r\\\\92=2\times 3.14\times r\\\\\dfrac{92}{2}=3.14\times r\\\\\dfrac{46}{3.14}=r\\\\14.64=r$

So, the diameter of round pen is $2\times r=2\times 14.64=29.29\ yd$

And the area of round pen is

$\pi r^2\\\\=3.14\times (14.64)^2\\\\=672.99\ sq.\ yd$

Hence, a) 92 yards, b) 29.29 yards and 672.99 sq. yd.

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3 years ago

Compare these fractions to 1/2. less than 1/2 equal to 1/2 greater than 1/2.

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1. > = < = < >
2. 3/4
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4 years ago

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