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3 years ago

Find area of a right triangle with a width of 4cm and a length of 10cm

Mathematics

2 answers:

worty [1.4K]3 years ago

6 0

The area equals 40. The height is 10 and the width is 4 so u just multiply. Which equals 40. Hope this helps :)

Naily [24]3 years ago

4 0

Answer:

I'm almost sure 10 times 4

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If f(x) = x2 – 3, then f(-1) is equivalent<br> to

zloy xaker [14]

Answer:

negative 5. or -5

Step-by-step explanation:

f(-1)= (-1)2-3

2 times -1= -2

-2-3= -5

f= -5

7 0

3 years ago

Read 2 more answers

The sum of two positive integers, a and b, is at least 30. The difference of the two integers is at least 10. If b is th

Dafna11 [192]

Answer:

$a + b \geq 30$

$b - a \geq 10$

Step-by-step explanation:

Given

The sum of the two positive integer a and b is at least 30, this means the sum of the two positive integer is 30 or greater than 30, so we write the inequalities as below.

$a + b \geq 30$

The difference of the two integers is at least 10, if b is the greater integer then we subtract integer a from integer b, so we write the inequality as below.

$b - a \geq 10$

Therefore, the following system of inequalities could represent the values of two positive integers a and b.

$a + b \geq 30$

$b - a \geq 10$

6 0

3 years ago

Caroline puts $400 into a savings account that earns 6% annually. Write a function that represents this situation, where t is th

DaniilM [7]

Answer: 19 years

Step-by-step explanation:

Given

Amount invested $\$400$

Rate of interest $R=6\%$

after 1-year amount becomes

$A=400\left (1+6\%\right)\\A=400\left (1+0.06\right)\\A=400\times 1.06\\A=\$424$

After n years it is

$A=400\left (1.06\right)^n$

Sum accumulated is $\$1200$

$\Rightarrow 1200=400\left(1.06\right)^n\\\Rightarrow 3=\left(1.06\right)^n\\\text{Taking log both sides}\\\Rightarrow n=\dfrac{\ln 3}{\ln 1.06}\\\\\Rightarrow n=18.85\approx 19\ \text{years}$