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Harman [31]
3 years ago
10

I need help with this! ASAP!

Mathematics
1 answer:
vovangra [49]3 years ago
7 0
The first one. 
The other ones have nothing to prove it. 
You might be interested in
If x+3 is a factor of x^3-x^2-10x+A. What is the value of A?
Leno4ka [110]

Answer:

A = 6.

Step-by-step explanation:

Let a denote a constant (a number, rather than a variable like x.)

Let f(x) denote an expression about x (for example,

By the factor theorem, if (x - a) is a factor of f(x), then f(a) = 0. In other words, if all mentions of x in the expression f(x)\! are replaced with a, then the expression should evaluate to zero.

(x + 3) is equivalent to (x - (-3)). That is: a = -3.

Replace all mentions of x in x^3 - x^2 - 10\, x + A by (-3) to get:

(-3)^3 - (-3)^2 - 10\times (-3) + A.

That should evaluate to zero. Therefore: -27 - 9 + 30 + A = 0. Solve for A to get A = 6.

7 0
3 years ago
A granite monument has a volume of 25,365.4 cm3. The density of granite is 2.7 g/cm3. Use this information to calculate the mass
Vaselesa [24]

Answer:

<h3>The answer is 68,486.58 g</h3>

Step-by-step explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of granite monument =

25,365.4 cm³

density = 2.7 g/cm³

The mass of the granite monument is

mass = 25,365.4 × 2.7

We have the final answer as

<h3>68,486.58 g</h3>

Hope this helps you

6 0
3 years ago
Which statement best explains how Italian society was affected by the Renaissance?
Tresset [83]

italian society entered a new era of artistic and academic achievement

4 0
3 years ago
2) AT&amp;T charges an initial fee of $5.80 plus $0.30 per text. If Izzy has her cell phone
balu736 [363]

Answer: 50 texts

Step-by-step explanation: 20.8 - 5.80 = 15

15 ÷ .30 = 50

3 0
3 years ago
9d + d + 2d - 4 = 6d<br><br> A: 2/3<br> B: -2<br> C: 2/9<br> D: -9 <br><br> Please comment
jonny [76]
<span>9d + d + 2d - 4 = 6d
Add d to 9d
10d+2d-4=6d
Add 2d to 10d
12d-4=6d
Subtract 12d from both sides
-4=-6d
Divide -6 on both sides
Final Answer: 4/6 or 2/3 *Both answers are equivalent to each other.</span>
5 0
3 years ago
Read 2 more answers
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