3 years ago

Simplify the given expression. (4x2squared-15x-21)+3x2squared-10)

Mathematics

1 answer:

Bess [88]3 years ago

4 0

Answer:

$7x^{2} - 15x -31$

Step-by-step explanation:

$(4x^{2} - 15x -21) + 3x^{2} - 10 = 4x^{2} + 3x^{2} - 15x -21 - 10 = 7x^{2} - 15x -31$

You might be interested in

Fill in the blanks to solve 48 x 8.<br> 48 x 8<br> = 40 eights + 8<br> eights

kozerog [31]

Question is:

Fill in the blanks to solve $\frac{48}{x} =8$ .

Answer:

$x = 6$

Step-by-step explanation:

Given

$\frac{48}{x} =8$

Required

Solve

Multiply both sides by x

$x * \frac{48}{x} =8*x$

$48 =8*x$

Make x the subject

$x = \frac{48}{8}$

$x = 6$

4 0

3 years ago

Describe how the placement of the decimal point changes when you multiply a number by the power of ten. How is this the same and

Solnce55 [7]

Answer: the answer to your question is

Recall that when you multiply a decimal by a power of ten (10, 100, 1,000, etc), the placement of the decimal point in the product will move to the right according to the number of zeros in the power of ten. For instance, 4.12 · 10 = 41.2.

hope this helps for what you needed have a nice day! :)

3 0

3 years ago

Sally read 13 books during this month.her brother read 7 books.one fourth of all books they read were non fiction. how many non

vladimir1956 [14]

Thirteen plus seven is twenty. One fourth of twenty is five.
The answer is five.

3 0

3 years ago

5. h(t) = 3 • 49 for t= -3

Novosadov [1.4K]

Answer:

what do you need here there has to be something to do here your just giving me a variable

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Help pretty please .w.

sineoko [7]

I don’t know what that is it’s probably 9999999

4 0

3 years ago

Read 2 more answers