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2 years ago

If you help me I’ll give brainliest

Mathematics

2 answers:

Bess [88]2 years ago

5 0

Answer:

20 calls

Step-by-step explanation:

20 calls were made before 6 pm

aleksandrvk [35]2 years ago

4 0

Answer:

Step-by-step explanation:

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Please help I’m stuck.

Alika [10]

Answer: bro Idk imma try to figure it out

Step-by-step explanation:

8 0

2 years ago

Mai wants to make an open top box by cutting out corners of a square piece of cardboard and folding up the sides. The cardboard

Bumek [7]

Answer:

$V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

The domain for x is all real numbers greater than zero and less than 5 com

Step-by-step explanation:

<em><u>The question is</u></em>

What is the volume of the open top box as a function of the side length x in cm of the square cutouts?

see the attached figure to better understand the problem

Let

x -----> the side length in cm of the square cutouts

we know that

The volume of the open top box is

$V=LWH$

we have

$L=(10-2x)\ cm$

$W=(10-2x)\ cm$

$H=x)\ cm$

substitute

$V(x)=(10-2x)(10-2x)x\\\\V(x)=(100-40x+4x^{2})x\\\\V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

Find the domain for x

we know that

$(10-2x) > 0\\10> 2x\\ 5 > x\\x < 5\ cm$

The domain is the interval (0,5)

The domain is all real numbers greater than zero and less than 5 cm

therefore

The volume of the open top box as a function of the side length x in cm of the square cutouts is

$V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

5 0

2 years ago

a big penguin will eat three times as much as a small penguin. the big penguin will eat 21 grams of fish. let b = number of gram

garik1379 [7]

S equals 3 times B, I think.
Hope I helped c:

4 0

2 years ago

What is the solution to q + (–9) = 12? (1 point)

Klio2033 [76]

To solve q+(-9)=12 we do the following.
q+(-9)=12
+9 +9
q=21

Giving us are end answer of q=21.

Hope this helps!=)

4 0

2 years ago

Foram prescritos 500mg de dipirona para uma criança com febre.Na unidade tem disponivel ampola de 1g/2ml.Quantos g vão ser admin

Valentin [98]

De acordo com a disponibilidade da unidade, há apenas a seguinte dosagem: 1g/2mL - ou seja, uma grama de dipirona a cada 2mL

O enunciado está meio mal formulado, pois é dito que foram prescritos 500mg de dipirona e é essa quantidade de farmaco que a criança tem que tomar. Deseja-se saber quantos mL deverao ser administrados.

Fazendo a classica regra de 3, podemos chegar no volume desejado:

(atentar que 500mg = 0,5g)

g mL

1 --------- 2

0,5 --------- X

1 . X = 0,5 . 2

8 0

3 years ago