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2 years ago

Help asap will give brainlest and 100 points answers are A.0.8B.3.2C.12.8D.13.8

Mathematics

2 answers:

gogolik [260]2 years ago

7 0

Answer:

see below for explanation:-

Step-by-step explanation:

$\displaystyle{3.2(b \div2) }$

b= $\displaystyle{ \frac{1}{2} }$

$\displaystyle{3.2( \frac{1}{2} \times \frac{1}{2}) }$

$\displaystyle{ 3.2( \frac{1}{4}) }$

$\displaystyle{ 3.2 \times 4 }$

$12.8$

BigorU [14]2 years ago

5 0

Answer:

B.3.2

Step-by-step explanation:

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Subtracting mixed number 4_1 - 2_7 4 8 4

aleksandr82 [10.1K]

Answer:

$4\frac{1}{4} - 2\frac{7}{8} = 1\frac{3}{8}$

Step-by-step explanation:

Given

$4\frac{1}{4} - 2\frac{7}{8}$ --- proper representation of the question

Required

Evaluate

Convert numbers to improper fractions

$4\frac{1}{4} - 2\frac{7}{8} = \frac{17}{4} - \frac{23}{8}$

Take LCM

$4\frac{1}{4} - 2\frac{7}{8} = \frac{34 - 23}{8}$

$4\frac{1}{4} - 2\frac{7}{8} = \frac{11}{8}$

Convert to improper fraction

$4\frac{1}{4} - 2\frac{7}{8} = 1\frac{3}{8}$

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3 years ago

5. Simplify the expression and find its value when p= 4 and q = -5:

Ierofanga [76]

Answer: -180

Step-by-step explanation:

$\bf \blue{ \boxed{ \bf p = 4 \: \: and \: \: q = - 5 \Rightarrow pq = 4 \times ( - 5) = - 20}}$

3(p2q + pq2 - pq) - 6pq + 3pq2 =

3[-20 × 2 + (-20) × 2 - (-20)] - 6 × (-20) + 3 × 2 × (-20) =

3[-40 + (-40) + 20] - 6 × (-20) + 3 × 2 × (-20) =

3(-40 - 40 + 20) - 6 × (-20) + 3 × 2 × (-20) =

3(-80 + 20) - 6 × (-20) + 3 × 2 × (-20) =

3 × (-60) - 6 × (-20) + 3 × 2 × (-20) =

-180 + 120 + 6 × (-20) =

-180 + 120 + (-120) =

-180 + 120 - 120 =

-60 - 120 = -180

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2 years ago

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Match each expression to its value.

Klio2033 [76]

1) 7-5 = 2
2)-7+ 5 = -2
3) -7-5 = -12
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hope this helps! feel free to mark brainliest

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3 years ago

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What two numbers multiply to negative 8 but add to negative 7

Amiraneli [1.4K]

Let "a" and "b" be the two numbers
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By factorizing we get (x+8)(x-1)=0
So a can be either -8 or 1 and b can be 1 or -8
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3 years ago

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