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3 years ago

Can someone help? Please I need it quickly

Mathematics

2 answers:

Gala2k [10]3 years ago

7 0

Answer and Step-by-step explanation:

Let's solve your equation step-by-step.

−2(x+5)=4

Step 1: Simplify both sides of the equation.

−2(x+5)=4

(−2)(x)+(−2)(5)=4(Distribute)

−2x+−10=4

−2x−10=4

Step 2: Add 10 to both sides.

−2x−10+10=4+10

−2x=14

Step 3: Divide both sides by -2.

-2x/2 = 14/-2

x equals...

x=-7

ra1l [238]3 years ago

3 0

Answer:

Step-by-step explanation:

ok so the answer for the one after 12x is 8x I think but it would only make sens i dunno the answer to the fraction

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What is 4/5 of 15. Pls tell MAEEE!!!

kirill115 [55]

Answer:

Step-by-step explanation:

of is a another word for multiplying or multiplication

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3 years ago

A college has a 30% completion rate, meaning that 30% of all students who start at the college complete the goal they set. The p

RSB [31]

Answer:

45%

Step-by-step explanation:

For simplicity, let use assume there are 100 students in the school.

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New set goal = 30 + 15 = 45 students.

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Therefore;

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3 years ago

Why do you think the Court ruled differently in New York Times Co. v. United States (1971) than it did in Schenck v. United Stat

Marina CMI [18]

Answer:

The case reached the Supreme Court in June 1971. The Supreme Court has, at times, ruled that the government can restrict speech that presents a “clear and present danger.”

5 0

3 years ago

The age of the Hawaiian islands gets older as you move from east to west. If the half-life of K-40 is 1.3 billion years, approxi

Mumz [18]

Answer:

$t \approx 750550.12\,yr$

Step-by-step explanation:

The time constant of the isotope is:

$\tau = \frac{1.3\times 10^{9}\,yr}{\ln 2}$

$\tau \approx 1.876 \times 10^{9}\,yr$

The decay of the isotope is described by the following model:

$\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }$

Now, the time is cleared in the equation:

$t = -\tau \cdot \ln \frac{m}{m_{o}}$

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5 0

3 years ago

3)June 2019-In the diagram below of AABC, D is a

Alexeev081 [22]

Answer:

BC = 23.8

Step-by-step explanation:

See the diagram attached.

Given AC ║ DE and BD = 5, DA = 12 and BE = 7.

We have to find BC.

Since, AC ║ DE, so, Δ ABC and Δ DBE are similar.

If two triangles are similar then the ratio of their corresponding sides remains the same.

Hence, $\frac{BD}{BA} = \frac{BE}{BC}$

⇒ $\frac{5}{12 + 5} = \frac{7}{BC}$

⇒ $BC = \frac{7 \times 17}{5} = 23.8$ (Answer)

7 0

3 years ago