3 years ago

Which sum does the model below represent?

Mathematics

1 answer:

cestrela7 [59]3 years ago

6 0

It’s -3 because 4+-7=-3

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Perimeter of a square with side 4 square root of 5

Darya [45]

Answer:

16 $\sqrt{5}$

Step-by-step explanation:

$4\sqrt{5}$ + $4\sqrt{5}$ + $4\sqrt{5}$ + $4\sqrt{5}$

16 $\sqrt{5}$

7 0

4 years ago

Divide. Write your answer as a fraction in simplest form. −7/10÷ 2/5= help

WARRIOR [948]

Answer:

- $\frac{7}{4}$

Step-by-step explanation:

Given

- $\frac{7}{10}$ ÷ $\frac{2}{5}$

Leave the first fraction

Change division to multiplication

Turn the second fraction upside down

= - $\frac{7}{10}$ × $\frac{5}{2}$ ← cancel 5 and 10 by 5

= - $\frac{7}{2}$ × $\frac{1}{2}$

= - $\frac{7(1)}{2(2)}$

= - $\frac{7}{4}$

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3 years ago

What are the roots of x^2 -5x-4=0

allochka39001 [22]

I suggest drawing a graph or simply using a calculator

The answers should be (5 - √ 41) / 2 and (5 + √ 41) / 2

;)

3 0

3 years ago

Simplify the expression. 2.5 –25 92.5 65

Marina86 [1]

Answer:

$\frac{5}{8} \times ({18.3 + (- 22))} + ( - 45)$

$( \: \: \frac{5}{8} \times 32) - 45$

$20 - 45 = - 25$

option B

8 0

3 years ago

Standard Form -19 - 24y+ 8y^7 help help wjeko

Iteru [2.4K]

8y7−24y−19 This is what it is in standard form

7 0

3 years ago