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Ksenya-84 [330]
3 years ago
13

2x+ for x=5 help me with this

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0

Answer:

10

Step-by-step explanation:

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Why is one called the multiplicative identity? HELP!!!!
Serjik [45]
The Multiplicative Identity Property. This means that you can multiply 1 to any number... and it keeps its identity! The number stays the same!
7 0
4 years ago
A figure is broken into a rectangle and a triangle. The triangle has a base of 2 and two-thirds feet and height of 3 feet. The r
ohaa [14]

Answer:

b=2\frac23\:\sf ft

Area of triangle = 4 ft²

Area of rectangle = 6\frac23\: \sf ft^2

Area of irregular figure = 10\frac23\: \sf ft^2

Step-by-step explanation:

\begin{aligned}\sf Base\:of\:triangle\:(b) & = 5-2\frac13\\\\& = \dfrac{15}{3}-\dfrac73\\\\ & = \dfrac83\\\\ & = 2\frac23\:\sf ft \end{aligned}

\begin{aligned}\sf Area\:of\:a\:triangle & =\dfrac12 \sf \times base \times height\\\\& = \dfrac12 \times b \times 3\\\\ & = \dfrac12 \times \dfrac83 \times \dfrac31\\\\ & = \dfrac{24}{6}\\\\ & = 4\: \sf ft^2\end{aligned}

\begin{aligned}\sf Area\:of\:rectangle& =\sf length \times width\\\\& = 5 \times 1\frac13\\\\ & = \dfrac51\times \dfrac43\\\\& = \dfrac{20}{3}\\\\ & = 6\frac23\: \sf ft^2\end{aligned}

\begin{aligned} \sf Area\:of\:irregular\:figure & = \sf area\:of\:triangle+area\:of\:rectangle\\\\ & = 4 + 6\frac23\\\\ & = 10\frac23\: \sf ft^2\end{aligned}

5 0
2 years ago
Read 2 more answers
Complete the following proof by dragging and dropping the correct reason in the spaces bellow
almond37 [142]

Given:

Q is between P and R, R is between Q and S, PR=QS.

To prove:

PQ=RS

Solution:

The two column proof is:

Statements                                             Reasons

1. Q is between P and R                         1. Given

2. PQ+QR=PR                                  2. Segment addition postulate

3. R is between Q and S                        3. Given

4. QR+RS=QS                                   4. Segment addition postulate

5. PR=QS                                            5. Given

6. PQ+QR=QR+RS                        6. Substituting property of equality

7. PQ+QR-QR=QR+RS-QR    7. Subtraction property of equality

8. PQ=RS                                            8. Simplify

Hence proved.

6 0
3 years ago
Determine if the following triangle is a right triangle or not using the Pythagorean Theorem Converse. Triangle with side length
atroni [7]

Answer:

True, these measures do form a right triangle.

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2

(6)^2 + (8)^2 = (10)^2

36 + 64 = 100

100 = 100

So, its true these measurements do form a right triangle.

6 0
3 years ago
Can someone answer this question please answer it correctly pleas help me if it’s correct I will mark you brainliest
elena-14-01-66 [18.8K]

Answer:

5/39

Step-by-step explanation:

<u>Step 1:  Find the probability</u>

Cross country / total

10 / 78

(10/2) / (78/2)

5 / 39

Answer:  5/39

5 0
3 years ago
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