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4 years ago

4-8(-2-6t) if t = -1

Mathematics

1 answer:

oee [108]4 years ago

4 0

Answer:

-16

Step-by-step explanation:

4-8= -4 (-2-6t) if t=-1 instead of t besides 6 put -1 multiplier it which it will become positive.

-4(-2+6)

-4x-2=8, -4x6= -24

8-24=-16

trust me i know that i am right

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Consider the function represented be the table. What is f(0)?

mamaluj [8]

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Step-by-step explanation:

The value of f(x) for x=0 is f(0). The first line of the table tells you that value is 6.

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4 years ago

If varies directly with y and x = 6 m when y = 15, find x when y = 20

GuDViN [60]

If x varies directly with y, then :

● Increase in x results in increase of y

● Decrease in x results in decrease of y

● It is represented by : x ∝ y

$\mathsf{\bigstar\;\;If\;x\;varies\;directly\;with\;y\;then : \large\boxed{\mathsf{\dfrac{x_1}{x_2} = \dfrac{y_1}{y_2}}}}$

Here : x₁ = 6 and y₁ = 15 and x₂ = x₂ and y₂ = 20

Substituting the values we get :

$\mathsf{\implies \dfrac{6}{x_2} = \dfrac{15}{20}}$

$\mathsf{\implies x_2 = \dfrac{20 \times 6}{15}}$

$\mathsf{\implies x_2 = 8}$

<u>Answer</u> : x = 8 when y = 20

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3 years ago

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Leni [432]

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Allison

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Allison:

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. How can you know if 2 shapes are congruent? Draw an example of 2 congruent triangles and label how you know.

ValentinkaMS [17]

Triangle ABC and triangle DEF are congruent by the SAS Congruence Postulate

<h3>What are congruent triangles?</h3>

Two triangles are said to be congruent if they have the same shape and their corresponding sides are also congruent.

We can say that two triangles are congruent using these 5 rules:

1: SSS or the side, side, side rule, that means that we have two triangles with all three sides equal.

2. SAS or side, angle, side states that in the two triangles, two sides and the included angle are equal.

3. ASA or angle, side, angle states that in two triangles, the two angles and the included side are equal.

4. AAS or angle, angle, side states that we have two triangles where two angles and the non-included side are equal.

5. HL or the Hypotenuse Leg rule states that, if the hypotenuse and one leg of one right-angled triangle are equal to the corresponding hypotenuse and leg of another right-angled triangle, then the two triangles are congruent.

Two triangles are said to be congruent if they have the same shape and their corresponding sides are also congruent.

Example:-From the diagram, given that:

AB = DE, BC = EF and ∠B = ∠E

Triangle ABC and triangle DEF are congruent by the SAS Congruence Postulate

Find out more on congruent triangles at:

brainly.com/question/2644832

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