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3 years ago

[3x(9+7)] +6 please help, 25 points!

Mathematics

1 answer:

Eva8 [605]3 years ago

5 0

Answer:

(27x +21x) +6

48x +6

do you understand

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What is the y-intercept of the line described by the equation below? y = 3x - 6

elena55 [62]

This is a line in the form y = mx + b, where b is the y intercept. In your equation above, 3 is the slope, the m value, and -6 is the y-intercept, the b value.

3 0

4 years ago

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Find four rational number between 1/4 and 2/3.

olya-2409 [2.1K]

Answer:

4/12, 5/12, 6/12, 7/12

Step-by-step explanation:

1/4 x 3/3 = 3/12

2/3 x 4/4 = 8/12

between 3/12 and 8/12

4/12, 5/12, 6/12, 7/12

you can simplify these if you wish

Hope that helped!!! k

6 0

3 years ago

HELP PLEASE!

wel

Answers:

$\text{Perimeter} = 14\sqrt{5}\\\\\text{Area} = 50\\\\$

=======================================================

Work Shown:

$L = 2\sqrt{5} = \text{length}$

$W = 5\sqrt{5} = \text{width}$

P = perimeter

$P = 2*(L+W)\\\\P = 2*(2\sqrt{5}+5\sqrt{5})\\\\P = 2*(7\sqrt{5})\\\\P = 14\sqrt{5}\\\\$

-------------

A = area

$A = L*W\\\\A = (2\sqrt{5})*(5\sqrt{5})\\\\A = (2*5)(\sqrt{5}*\sqrt{5})\\\\A = 10\sqrt{5*5}\\\\A = 10\sqrt{25}\\\\A = 10*5\\\\A = 50\\\\$

3 0

3 years ago

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the width of the vegetable garden is 1/3 times its length. if the length of the garden is 7 3/4, what is the width in simplest f

Valentin [98]

w = width

l = length

w = 1/3 length

l = 7 3/4

w = 1/3 * length

w = 1/3 ( 7 3/4)

change the mixed number to an improper fraction

7 3/4 = (4*7+3)/4 = 31/4

w = 1/3 ( 31/4) = 31/12

12 goes in to 31 2 times with 7 left over

w = 2 7 /12

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3 years ago

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A shape is made of 12 right triangles of equal size. Each right triangle has a base of 4cm and a height of 5cm. What is the tota

Natalka [10]

Answer: 120 cm²

Step-by-step explanation:

Let's start by finding the area of one triangle

The formula for finding the area of a triangle is $A=\frac{hb}{2}$

Where

A is the area

h is the height (5 for this)

and b is the base (4 for this)

Let's sub in our values and solve.

$A=\frac{(5)(4)}{2}\\A=\frac{20}{2}\\A=10$

Since there are 12 triangles in the shape we must multiply our area for one triangle by 12 to find the total area of the shape

12×10=120

6 0

2 years ago