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3 years ago

3(x² + 3x - 10) Simply the expression

Mathematics

2 answers:

miv72 [106K]3 years ago

5 0

Answer:

3 $x^{2}$ +9x-30

Step-by-step explanation:

Multiply the three into each number

3 $x^{2}$ +9x-30

HACTEHA [7]3 years ago

3 0

Answer:

3x² + 9x - 30

Step-by-step explanation:

3 × x² = 3x²

3 × 3x = 9x

3 × -10 = -30

3x² + 9x - 30

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What is 13 divided by 5/8

Norma-Jean [14]

20.8 hope this helps :D

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3 years ago

Read 2 more answers

Find the measure of angle Y

Musya8 [376]

Answer:

∠y=60°

Step-by-step explanation:

Question says to find the measure of the angle Y.

We have been given a picture of triangle XYZ. All angles are marked with same sign so that indicates that all three angles are equal.

∠x = ∠y = ∠z...(i)

We know that sum of all three angles of the triangle is always 180°.

So we can write:

∠x+∠y+∠z=180°

∠y+∠y+∠y=180° {using equation (i) }

3∠y=180°

divide both side by 3

∠y=60°

Hence final answer is the measure of angle y is 60 degree.

8 0

3 years ago

The main span of bridge A is 2500 is percent shorter than the main span of bridge B 4100

Gwar [14]

Answer:

16%

percentage is calculated by 100

A. 2500 × 1/100 = 25%

B. 4100 x 1/100 = 41%

41% - 25%

16%

therefore bridge A is 16% shorter than bridge B

5 0

3 years ago

What is the reciprocal of 10 2/3

Zinaida [17]

Answer:

the reciprocal is 3 /32

5 0

2 years ago

Karrine hit 4 more home runs than half the number of home runs Lu hit. Together they hit 10 home runs. Let x represent the numbe

Andreas93 [3]

Answer:

The number of home runs that Lu hit is 4 and the number of home runs that Karrine hit is 6

Step-by-step explanation:

Let

x ----> represent the number of home runs Lu hit

y ---> represent the number of home runs Karrine hit

we know that

Together they hit 10 home runs

$x+y=10$ ----> equation A

Karrine hit 4 more home runs than half the number of home runs Lu hit

$y=\frac{1}{2}x+4$ ---> equation B

substitute equation B in equation A

$x+\frac{1}{2}x+4=10$

solve for x

$\frac{3}{2}x=10-4$

$\frac{3}{2}x=6\\x=4$

Find the value of y

$y=\frac{1}{2}(4)+4=6$

therefore

The number of home runs that Lu hit is 4 and the number of home runs that Karrine hit is 6

5 0

3 years ago