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3 years ago

Which expression has the same value as the sum of 45 and 25?

Mathematics

1 answer:

Verdich [7]3 years ago

6 0

5(9+5)
when you open the parentheses you get 45+25

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The sum of two consecutive integers is − 17 -17. find the numbers

UkoKoshka [18]

I think it might be -76

4 0

3 years ago

Express as a trinomial (3x+8) (x+10)

docker41 [41]

Answer:

$3x^{2} +38x+80$

Step-by-step explanation:

Hello!

A trinomial is a expression consisting of three different terms

To turn this into a trinomial we multiply everything to each other

3x * x = $3x^{2}$

3x * 10 = 30x

8 * x = 8x

8 * 10 = 80

Now we put them all together in an equation

$3x^{2} +30x+8x+80$

Combine like terms

$3x^{2} +38x+80$

The answer is $3x^{2} +38x+80$

Hope this helps!

7 0

3 years ago

Allen is on the football team this year but he has poor time management skills. His mother told him that he is off the team if h

luda_lava [24]

Answer:

See explanation

Step-by-step explanation:

We can see that the sequence is 90, 86,82,.......

The common difference is 86 - 90 = -4

82 - 86 = -4

Hence the sequence is arithmetic

The function is;

t(n) = 90 + (n - 1)(-4) = 90 + 4 - 4n

t(n) = 94 - 4n

Since it is AP, we have the sequence as;

90, 86, 82, 78, 74, 70, 66, 62......

He will no longer play football after the eighth quiz.

The total points earned is the sum of the first eight terms of the AP

Sn =n/2[2a + (n - 1) d]

Sn = 8/2[2(90) + (8 - 1) (-4)]

Sn = 608 points

5 0

3 years ago

5=1/2x - 3 please help me out

liq [111]

Answer:

x = 16

Step-by-step explanation:

5 = 1/2(x) - 3

Add 3 to both sides.

8 = 1/2(x)

Rewrite for clarity.

1/2(x) = 8

x/2 = 8

Multiply both sides by 2.

x = 16.

Proof:

5 = 1/2(x) - 3

Substitute variable.

5 = 1/2(16) - 3

Multiply 1/2 and 16.

5 = 8 - 3

Subtract 3 from 8.

5 = 5

3 0

3 years ago

What is the value of the expression 1.6(x−y)2 when x = 10 and y = 5?

Luba_88 [7]

Answer:

1.6(10-5)2= 1.6(5)2= (8)(2)=16

Step-by-step explanation:

7 0

1 year ago

Read 2 more answers