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inn [45]
3 years ago
13

Just help me please! simplify: 3x – 7 + 5x +8 simplify: m + m + 3m +4

Mathematics
1 answer:
vlada-n [284]3 years ago
4 0
1st one: 8x+1
2nd one:5m+4
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Ten is at least the product of a number h and 5
slamgirl [31]

When you hear the word 'product' in mathematics, it means that you're multiplying something. In this case, it's h * 5. When it says 'at least', this means that ten is the smallest possible answer, or in other words, h*5 is greater than or equal to 10.

h * 5≥10

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Which letter? is it help plzzzzzzzzzzzzzzzzzz
egoroff_w [7]

Answer:

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Step-by-step explanation:

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Triangle E D F has sides that are of varying lengths. Side E D has a length of 4 and side E F has a length of 9.
9966 [12]

Answer:

D E + E F greater-than D F

5 less-than D F less-than 13

Triangle D E F is a scalene triangle

Step-by-step explanation:

we know that

The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

we have the triangle EDF

where

ED=4\ units\\EF=9\ units

<u><em>Applying the triangle inequality theorem</em></u>

1)

ED+EF > DF\\4+9 > DF\\13 > DF\\DF < 13\ units

2)

ED+DF > EF\\4+DF > 9\\DF > 5\ units

so

The length of DF is the interval -----> (5,13)

The triangle DEF is a scalene triangle (the three length sides are different)

therefore

<em>The statements that are true are</em>

D E + E F greater-than D F

5 less-than D F less-than 13

Triangle D E F is a scalene triangle

3 0
3 years ago
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Ivan has 15 yards of green felt and 12 yards of blue felt to make 3 quilts if Ivan uses the same total number of yards for each
mixas84 [53]

Answer:

9 yards

Step-by-step explanation:

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Now, the length of 3 quilts is given as:

Total\ length=l+l+l=3l ----- (1)

As per question:

Total length = Length of green felt + Length of blue felt

Total length = g+b

Total\ length=15+12=27--------- (2)

Now, comparing equations (1) and (2), we get:

3l=27\\\\l=\frac{27}{3}\\\\l=9\ yards

Hence, each quilt measures 9 yards in length.

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3 years ago
Simplify (8x^2 - 1 + 2x^3) - (7x^3 - 3x^2 + 1).
Elenna [48]

Answer:

31x^2-2 is the answer....

Step-by-step explanation:

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