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3 years ago

What is the value of the expression below when x=1? 4x² + 5

Mathematics

2 answers:

zheka24 [161]3 years ago

6 0

Answer:

Step-by-step explanation:

4x^2+5=

4(1)^2+5=

4(1)+5=

4+5=

SpyIntel [72]3 years ago

3 0

Answer:

its 9

Step-by-step explanation:

bec 1 square is 1 and 4 +5 is 9

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A problem is given to three students A,B and C whose chances of solving 1/2, 1/3 and 1/4 respectively. What is the probability t

tatuchka [14]

Answer:

because

1/2+1/3+1/4

1/2x6+1/3x4+1/4x3

1/12+1/12+1/12

1+1+1/12

3/12

1/4

1:4 so,their is a proability that the problem will be solved.

5 0

3 years ago

Can you guys help me I need to turn this in at 11:00pm :( . <br> Don’t answer it if you don’t know .

Ostrovityanka [42]

Answers :

1.) Linear

2.) non-linear

3.) non-linear

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6 0

3 years ago

Solve for X. Solve for X. Solve for X. Solve for X.

Elena L [17]

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See this attachment

5 0

3 years ago

jimhas 100 cards. there is a whole number from 1 to 100 on each card . nocards have the same number. Jim puts a Star on every ca

allochka39001 [22]

Answer:

21, 42, 63, 84.

Step-by-step explanation:

The cards with a star and a circle must be multiples of 3 and 7.

So these must also be multiples of 21:

These are 21, 42, 63 and 84.

6 0

4 years ago

Are the ratios 84/105 and 128/160 proportional? Give two different reasons to support your answer.

Karolina [17]

We have been given two ratios and we are supposed to compare our ratios whether they are proportional or not.

1. We will reduce our fractions to compare our ratios. Let us simplify each of our given fractions.

$\frac{84}{105}$

Let us divide numerator and denominator with greatest common factor. We can see that 21 is GCF of our ratio.

$\frac{4}{5}$

Now we will simplify our second ratio.

$\frac{128}{160}$

GCF of our fraction is 32. Upon dividing our fraction by 32 we will get,

$\frac{4}{5}$

We can see that our both ratios are similar.

2. Now we will find decimal values of our fractions.

$\frac{84}{105}=0.8$

$\frac{128}{160}=0.8$

We can see that $0.8=0.8$ .

Therefore, we can say that our ratios are proportional.

4 0

4 years ago