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3 years ago

Steps 2,4 and 6 are all justified for the same reason, what is the reason ?

Mathematics

1 answer:

mel-nik [20]3 years ago

5 0

Because both of them are congruent triangles.

The have sides that equal to each other, angles that equal to each other and a common base.

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Look at the picture please

lbvjy [14]

The answer is the First one and the Second to Last one.

5 0

3 years ago

Set up a proportion. What is h?

Ulleksa [173]

Answer:

Decimal:

h = 4.2 ft

Fraction:

$h=4\frac{1}{5}$ ft

Step-by-step explanation:

$\frac{9}{15} :\frac{h}{7}$

Cross multiply.

h · 15 = 9 · 7

Simplify.

15h = 63

Divide each side by 15.

15h ÷ 15 = 63 ÷ 15

Simplify.

h = 4.2

3 0

3 years ago

Ellis built a rectangular vegetable garden there is 9' long and has an area of 72 ft²what is the perimeter of the vegetable gard

xz_007 [3.2K]

W= 72/9 = 8
w=8
l+l+w+w= p
9+9+8+8 = 34ft

6 0

4 years ago

Stephanie is making beef for a party the recipe uses 1 1/2 teaspoons of pepper, 3 2/4 teaspoons of garlic powder 1/8 teaspoons o

Arisa [49]

Answer:

She will use:

3 tablespoons of pepper

7 tablespoons of garlic powder

$\frac{1}{4}$ tablespoon of thyme

8 tablespoons of onion powder

Explanation:

To double the amount, Stephanie will need to double the amount of each ingredient used. This means that she will multiply each amount by 2

Therefore:

New amount of any ingredient = old amount of that ingredient x 2

This means that:

New amount of pepper = $1\frac{1}{2}*2= 3$ tablespoons

New amount of garlic powder = $3\frac{2}{4}*2=7$ tablespoons

New amount of thyme = $\frac{1}{8}*2=\frac{1}{4}$ tablespoons

New amount of onion powder = $4*2=8$ tablespoons

Hope this helps :)

8 0

3 years ago

PLEASE ANSWER I WILL MARK THE BRAINIEST ANSWER :) factorise: X^2 + 10x + 16

Damm [24]

Answer:

(x+2)(x+8)

Step-by-step explanation:

1.)find factors of the third expression(16)that will add up to give the second expression(10)

16=2×8. 10=2+8

2.)substitute those factors inplace of 10

${x}^{2} + 10x + 16$

$x {}^{2} + 2x + 8x + 16$

3.)factorise using grouping method

$( {x}^{2} + 2x) + (8x + 16)$

$x(x + 2) + 8(x + 2)$

$= (x + 2)(x + 8)$

3 0

3 years ago