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Sunny_sXe [5.5K]
3 years ago
5

30 POINTS!!!! + BRAINLESIT

Mathematics
2 answers:
Ronch [10]3 years ago
6 0

1. simplify: 4(6 + 7)

Answer:<em> D: </em><u>52</u>


2. Simplify: 6(5+4)

Answer: C: <u>54</u>


3. Simplify:6y+5z+8y=3z

Answer: B: <u>14y+2z</u>


4: Simplify: 6m + 7n + 5m =3n

Answer: C: <u>11m + 4+n</u>

worty [1.4K]3 years ago
3 0

1: D; 4 * 13= 52

2: C; 6*9=54

3: B

4: C

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If ur answer can be a fraction then it’d be 14/24 or 7/12 chance
4 0
3 years ago
The ravens won three more games than they lost.they played 96 games.how much games did they win?
balandron [24]
x-the \ number \ of \ games \ won \ \\\\ y-the \ number \ of \ games \ lost \\\\ x= y+3 \\\\ x+y=96 \\\\ 3+y+y=96 \\\\ 3+2y=96 \\\\2y=96-3\\\\2y=93 \\\\ \boxed{y=\frac{93}{2}=46.5\approx46\ games \ lost} \\\\ x=3+46 \\\\ \boxed{x=49 \ games \ win}
4 0
3 years ago
two sequences have the formulae 3n-1 and 7n+2 . A new sequences is formed by the number which appear in both of these sequences.
dangina [55]

Answer:

65+42*(n-1)

Step-by-step explanation:

aₙ = 65+42*(n-1)

65, 107, 149, 191, .....

5 0
3 years ago
A man weighing 800 N is hanging from a 2 mm diameter titanium wire with a cross-section of 3 x 10^-6 m^2. Will the wire break?
DENIUS [597]

Answer:

Since stress is greater than ultimate strength, the wire will break.

Step-by-step explanation:

The titanium wire is experimenting an axial load. Ultimate strength equals 2.20\times 10^{8}\,Pa. The wire shall break if and only if stress is at least equal to ultimate strength. The equation for axial stress (\sigma), measured in pascals, in the wire with circular cross-section is:

\sigma = \frac{4\cdot F}{\pi\cdot D^{2}} (1)

Where:

F - Axial force, measured in newtons.

D - Cross-section diameter, measured in meters.

Please notice that axial force is the weight of the man hanging from wire.

If we know that F = 800\,N and D = 0.002\,m, then the axial stress experimented by the titanium wire is:

\sigma = \frac{4\cdot (800\,N)}{\pi\cdot (0.002\,m)^{2}}

\sigma \approx 2.546\times 10^{8}\,Pa

Since stress is greater than ultimate strength, the wire will break.

3 0
2 years ago
What directed number is suggested by the statement "I gained 3 pounds "?​
sammy [17]

Answer:

The directed number suggested is +3.

Step-by-step explanation:

A directed number is one that has either a positive or negative sign, so that it could be easily located on the number line. Thus, the sign shows the direction of the number. Examples are: -2, -1, +5, +6 etc.

From the given question, let the initial weight be represented by W, then:

I gained 3 pounds implies at that; 3 pounds was added to my initial weight. Thus, my present weight is my initial weight + 3 pounds.

i.e I gained 3 pounds ⇒ W + 3

So that the directed number suggested by the statement is +3.

7 0
3 years ago
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