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2 years ago

5

Can someone please help me?

2 answers:

vekshin12 years ago

5 0

7.2 take 1.2 and multiply by 6

melamori03 [73]2 years ago

5 0

The only reasionable answer is 7.2

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Simplify the expression 4 + 23−|−4| <br> A.16 B.4 C.8 D.12

Artyom0805 [142]

Answer: =23

Step-by-step explanation:

$4+23-\left|-4\right|$

$=4+23-4$

$=23$

7 0

2 years ago

Please help, I need the answer quick, Thank you

cricket20 [7]

Answer: true

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Juan ordered 20 pizzas for a party. 45% of the pizzas have 8 slices each. The remaining 55% of the pizzas have 12 slices each. C

Mama L [17]

Total number of pizzas Juan ordered $20$

Since, $45\%$ of pizzas have $8$ slices.

Therefore, number of pizzas with $8$ slices are: $45\%\times(20)$

$=\frac{45}{100} \times(20)$

$=\frac{45}{10} \times(2)$

$=\frac{90}{10}$

$=9$ pizzas

Also, since, $55\%$ of pizzas have $12$ slices.

Therefore, number of pizzas with $12$ slices are: $55\%\times(20)$

$=\frac{55}{100} \times(20)$

$=\frac{55}{10} \times(2)$

$=\frac{110}{10}$

$=11$ pizzas

Now, there are $9$ pizzas with $8$ slices and $11$ pizzas with $12$ slices.

Therefore, total number of slices of pizza are: $=(9)(8)+(11)(12)$

$=72+132$

$=204$ slices

5 0

3 years ago

True or false all rectangles are quadrilaterals

Leni [432]

answer - true

all rectangles have four sides, and a shape is a quadrilateral if it has four sides

therefore, all rectangles are quadrilaterals

7 0

3 years ago

The pH of solution A is 2.4, while the pH of solution B is 9.4.

pishuonlain [190]

Answer:

The answer to your question is below

Step-by-step explanation:

pH definition

pH = - log [H⁺]

a) For pH = 2.4, solution A

2.4 = -log[H⁺]

[H⁺] = antilog⁻².⁴

[H⁺] = 0.00398

For pH = 9.4, solution B

[H⁺] = antilog⁻⁹.⁴

[H⁺] = 3.98 x 10⁻¹⁰

b) Divide hydrogen-ion concentration of solution A by hydrogen-ion concentration of solution B.

0.00398 / 3.98 x 10⁻¹⁰

10000000 times

c) By 7, because 7 is the number of zeros

3 0

3 years ago