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1 year ago

Write as an equation: If a number is decreased by five, and then the result is multiplied by two, the result is 26.

Mathematics

1 answer:

kvasek [131]1 year ago

5 0

Answer:

Step-by-step explanation:

Because when 18-5=13 x 2=26

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Can some one help me on this

Vilka [71]

28 divided by 4 = 7
so do 7 * 5 which is 35 so they make 35 cookies in 5 seconds

4 0

1 year ago

Find the area of a triangle with a =33, b =51, and c =42.

PolarNik [594]

Answer:

d. 690.1 units²

Step-by-step explanation:

1. You can use the Heron's formula to calculate the area of the triangle, which is:

$K=\sqrt{s(s-a)(s-b)(s-c)}$

Where:

$s=\frac{a+b+c}{2}$

2. Calculate $s$ :

$s=\frac{33+51+42}{2}\\s=63$

3. Substitute values into the formula shown above and calculate the area, as following:

$K=\sqrt{63(63-33)(63-51)(63-42)}\\K=690.1units^{2}$

4. Therefore, the area is 690.1 units².

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2 years ago

I’m wondering how this brainly

Anni [7]

Answer: i dont think so

i mean there arent many bots ive seen at least

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Choose the product.

Ivan

Answer:

$3 {x}^{3} - {x}^{2} - 5x + 3$

Step-by-step explanation:

$( 3{x}^{2} + 2x - 3)(x - 1) \\ 3 {x}^{2} (x) + 2x(x) - 3(x) + 3{x}^{2} ( - 1) + 2x( - 1) - 3( - 1) \\ 3 {x}^{3} + 2 {x}^{2} - 3x - 3 {x}^{2} - 2x + 3 \\ 3{x}^{3} - {x}^{2} - 5x + 3$

7 0

2 years ago

Read 2 more answers

Use an area model or the distributive property. <br> (4x +5)(4x-5)

alexandr1967 [171]

Answer:

16x-35

Step-by-step explanation:

Firstly, take the 4x in the first parenthesis and multiply it by the 4x and the -5 in the second parenthesis.

Second, multiply the +5 by the 4x and the -5 in the second parenthesis.

Finally, take both answers and add them together.

3 0

2 years ago