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pentagon [3]
3 years ago
9

Find the value of given expression

t%7B5%7D%20" id="TexFormula1" title=" \sqrt{21 - 1} \times \sqrt{5} " alt=" \sqrt{21 - 1} \times \sqrt{5} " align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
Over [174]3 years ago
6 0
The answer is 10 :))

Nataliya [291]3 years ago
6 0

Answer:  

<u>10</u> is the answer

Step-by-step explanation:

thx for the points ig

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Find the volume of the pyramid. round to the nearest hundredth
hichkok12 [17]

Answer:

A. 17.35 mm³

Step-by-step explanation:

<u>Volume of a Pyramid</u>

V = \frac{1}{3}Bh

V ... volume

B ... area of base

h ... height

The base of this pyramid is a square. Area of a square is side times side.

B = 3.5 \times 3.5

Let's substitute in the formula.

V = \frac{1}{3}Bh\\\\V = \frac{1}{3}(3.5\times 3.5)(4.25)\\\\V = \frac{1}{3}(12.25)(4.25)\\\\V \approx 17.35417 \text{ mm}^3

Now let's round to the nearest hundredth.

V = 17.35 mm³

6 0
2 years ago
Use technology to approximate the solution(s) to the system of equations to the nearest tenth of a unit
PSYCHO15rus [73]

Question:

Use technology to approximate the solution(s) to the system of equations to the nearest tenth of a unit.

Select all that apply.

f(x)=log x

g(x)=|x-3|

(3.6,0.6)

(-2.6,0.4)

(-3.6,0.6)

(2.6,0.4)

(4.5,-1.5)

Answer:

Option A : (3.6,0.6) is the solution to the system of equations.

Option D: (2.6,0.4) is the solution to the system of equations.

Explanation:

The two equations are f(x)=log x and g(x)=|x-3|

To determine the solution of the system of equations using technology, let us plot the equations in the graphing calculator.

The solution of the system of equations is the intersection of the two lines.

Thus, from the graph, we can see that the two lines f(x) and g(x) intersect at the points (2.587,0.413) and (3.55,0.55)

Rounding off the solution to the nearest tenth, we get,

(2.6,0.4) and (3.6,0.6)

Thus, the solution to the system of equations is (2.6,0.4) and (3.6,0.6)

Hence, Option A and Option D are the correct answers.

3 0
4 years ago
Select the expression that is equivalent to x + x + y × y × y.
Romashka-Z-Leto [24]
The Answer is : 2x+3y
3 0
3 years ago
The lines below are perpendicular. If the slope of the green line is 3/2 what is
Mars2501 [29]

Answer:

The answer: -2/3

your welcome :)

4 0
3 years ago
What is Best Buy out of 3 lbs for 1.89 or 5lbs for 2.49
vodomira [7]
1.89 / 3 = 0.63 per pound
2.49/ 5 = 0.498 per pound

answer 
<span>5lbs for 2.49 is the best buy</span>
8 0
4 years ago
Read 2 more answers
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