All categories

3 years ago

HELP ANSWER QUICKLY!!

Mathematics

2 answers:

WITCHER [35]3 years ago

8 0

Answer: The answer is B.

Step-by-step explanation: It just is. If you multiplied 4x10, and added it to 2x3, you would get the area.

Dvinal [7]3 years ago

6 0

Answer:

B: 4x10 + 2x3

Step-by-step explanation:

You might be interested in

Aaron and Maria collected shells one morning at the beach. Maria had 3 times as many as Aaron, but they would have had the same

Hoochie [10]

Let the amount of shells collected by Aaron be $x$ and the amount of shells collected by Maria be $y$ respectively. Then the following system of equations should be solved:
$\left \{ {{3x=y} \atop {x+8=y-6}} \right.$

First of all, express $y$ out of first equation:
$y=3x$

Then, replace $y$ in second equation with found expression and solve it:
$x+8=3x-6$
$2x=14$
$x=14/2=7$

Finally, replace $x$ in first equation with found value and solve it too:
$3*7=y$
$y=21$

So, Aaron has found 7 shells while Maria has found 21.

7 0

3 years ago

The quotient of a number and -7 is less than 13

Tomtit [17]

Answer:is there a picture along with this? I don't remember how to do these but this sounds like something with a picture included

Step-by-step explanation:

5 0

3 years ago

The average value of a function f over the interval [−2,3] is −6 , and the average value of f over the interval [3,5] is 20. Wha

Xelga [282]

Answer:

The average value of $f$ over the interval $[-2,5]$ is $\frac{10}{7}$ .

Step-by-step explanation:

Let suppose that function $f$ is continuous and integrable in the given intervals, by integral definition of average we have that:

$\frac{1}{3-(-2)} \int\limits^{3}_{-2} {f(x)} \, dx = -6$ (1)

$\frac{1}{5-3} \int\limits^{5}_{3} {f(x)} \, dx = 20$ (2)

By Fundamental Theorems of Calculus we expand both expressions:

$\frac{F(3)-F(-2)}{3-(-2)} = -6$

$F(3) - F(-2) = -30$ (1b)

$\frac{F(5)-F(3)}{5-3} = 20$

$F(5) - F(3) = 40$ (2b)

We obtain the average value of $f$ over the interval $[-2, 5]$ by algebraic handling:

$F(5) - F(3) +[F(3)-F(-2)] = 40 + (-30)$

$F(5) - F(-2) = 10$

$\frac{F(5)-F(-2)}{5-(-2)} = \frac{10}{5-(-2)}$

$\bar f = \frac{10}{7}$

The average value of $f$ over the interval $[-2,5]$ is $\frac{10}{7}$ .

4 0

3 years ago

carley beat the school record for the 400 meter run by 1.3 seconds. if she ran the race in 55.7 seconds what was the record?

Vika [28.1K]

Answer:

If Carley ran the 400 meter run in a total of 55.7 seconds and she beat the record by 1.3 seconds, you would add 55.7 and 1.3

55.7+1.3= 57 seconds

The past school record for the girls 400 meter run was 57 seconds

Hope this helps ;)

4 0

3 years ago

Find m<adc.please dhdhdhd

Alexus [3.1K]

They both are complementary angles i.e their sum must equals 90°

4x+ 31 + 6x + 39 = 90
10x + 70 = 90
10x = 90-70
10x = 20
x = 2

we have to find angle ADC
just put the value of x in that expression for that angle.

angle ADC = 6x + 39 = 6 (2)+39 = 12 + 39 = 51°

4 0

3 years ago