Which expression below is equivalent to 6? * 1 pc O 1+2+1+2+1 3 (3) 15-4-5 24/3

The scale from a map to the actual distance is 2.5 cm to 620 mi. The distance on the map between Chicago and Boston is about 3.5

galina1969 [7]

Answer 868 miles

Step by step

Given: The scale from a map to actual distance is 2.5 cm to 620 miles. If the distance on the map between Chicago and Boston is about 3.5 cm. Hence, the approximate distance between Chicago and Boston = 868 miles.

If the distance on the map between Chicago and Boston is about 3.5 cm.

Then, the actual distance between them = 3.5\times 248 \text{ miles}=868 \text{ miles}

Hence, the approximate distance between Chicago and Boston = 868 miles.

i.e. 1 cm on map = 620/2.5 miles = 248 miles

6 0

3 years ago

Please please help me with this

Olegator [25]

Answer:

Step-by-step explanation:

First find the equations of the lines, then fill in the proper inequality sign. The upper line has a y-intercept of 1 and a slope of 1/2, so the equation, in slope-intercept form is

$y=\frac{1}{2}x+1$

Since the shading is below the line, the inequality sign is less than or equal to. The inequality, then, is

$y\leq \frac{1}{2}x+1$

But the solutions are in standard form, so let's do that:

$-\frac{1}{2}x+y\leq 1$

AND they do not like to lead with negatives, apparently, so let's change the signs and the way the inequality is facing, as well:

$\frac{1}{2}x-y\geq -1$

Let's do the sae with the lower line. The equation, in slope-intercept form is

$y=\frac{3}{2}x-3$ since the slope is 3/2 and the y-intercept is -3. Now, since the shading is above the line, the inequality is greater than or equal to:

$y\geq \frac{3}{2}x-3$

In standard form:

$-\frac{3}{2}x+y\geq -3$ and not leading with a negative gives us

$\frac{3}{2}x-y\leq 3$

Those 2 solutions are in choice B, I do believe.

7 0

4 years ago

Draw a circle with center A and a radius of your choice. Create three well-spaced points, B, C, and D, on the circle in clockwis

Dmitry [639]

Answer:

Please find attached the required circle

It is observed that the angle subtended by the arc CB which are m∠CAB and m∠CDB is such that the angle arc CB subtends at the center, m∠CAB is two times the angle that the arc CB subtends at the circumference

The measured angle subtended by the arc CB at the center m∠CAB = 64° and the measured angle subtended by the arc CB at the circumference m∠CDB = 32°

Step-by-step explanation:

T

5 0

3 years ago

Round 88.27 to the nearest one.

allsm [11]

Answer:

88

Step-by-step explanation:

Basically you look at the number after the decimal point and if it is below 5 it will turn to 88. If it is over 5 it will be a 89. For this you also ignore the 7. The 7 does not mean anything.

4 0

3 years ago

The time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minus.

AnnyKZ [126]

Answer:

Step-by-step explanation:

Given that the time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes.

P(completing exam before 1 hour)

= P(less than an hour) = P(X<60)

=P(Z< $\frac{60-70}{10} =-1$ )

=0.5-0.34=0.16

i.e. 16% of students completed the standardized exam.

7 0

3 years ago