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Westkost [7]
4 years ago
6

BC = ? Round your answer to the nearest hundredth.

Mathematics
2 answers:
Vlada [557]4 years ago
5 0
So you do tan 65 = BC/7
marta [7]4 years ago
5 0

\tan 65^\circ = \dfrac{\textrm{opposite}}{\textrm{adjacent}} = \dfrac x 7

x = 7 \tan 65^\circ \approx 15.01

Answer:15.01

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Given h(x) = 4x – 5, solve for a when h(x) = 7.
Elenna [48]

h(x)=4x-5

\\ \sf\longmapsto h(7)

\\ \sf\longmapsto 4(7)-5

\\ \sf\longmapsto 28-5

\\ \sf\longmapsto 23

3 0
3 years ago
Read 2 more answers
How many solution does this have and how do you solve it
Vadim26 [7]

Answer:

Infinite solutions

Step-by-step explanation:

To determine the number of solutions a system has, you need its slope. If the slopes are the same, check if the equations are equivalent or not.

To find the slope, rearrange the equation to isolate "y", which makes it slope-intercept form y = mx + b.

"x" and "y" represent points on the line.

"m" represents the slope, which is how steep a line is.

"b" represents the y-intercept (where the graph hits the y-axis).

Isolate "y" in both equations:

x + 3y = 0

3y = -x        Subtract 'x' from both sides

y = -x/3        Divide both sides by 3.

y = -\frac{1}{3}x

The slope is -1/3.

9y = -3x

y = -3x/9        Divide both sides by 9

y = -\frac{3}{9}x        Reduce the fraction to lowest terms

y = -\frac{1}{3}x

The slope is -1/3, but the two equations are the same.

Since the equations are the same, or <u>equivalent</u>, the two lines are always touching. The solution of a system means where two lines intersect, or meet. Therefore, <u>there are infinite solutions</u>.

5 0
3 years ago
On Tuesday at 8:00am the temperature was 38 degrees. By 2:30pm, the temperature had fallen to (-12). What was the total drop in
steposvetlana [31]

Answer:

26 degrees

Step-by-step explanation:

so you do 8:00 - 2:30 which is 5:70. then you subtract 12 from 38 to get 26. The total drop was 26 degrees!

pls mark me as brainliest hope this helps!

6 0
3 years ago
What is the sum of the first 75 even numbers starting with 2? Enter your answer in the box.
vova2212 [387]

Answer:

5700

Step-by-step explanation:

step 1 Address the formula, input parameters & values.

Input parameters & values:

The number series 2, 4, 6, 8, 10, 12, .  .  .  .  , 150.

The first term a = 2

The common difference d = 2

Total number of terms n = 75

step 2 apply the input parameter values in the AP formula

Sum = n/2 x (a + Tn)

= 75/2 x (2 + 150)

= (75 x 152)/ 2

= 11400/2

2 + 4 + 6 + 8 + 10 + 12 + .  .  .  .   + 150 = 5700

Therefore, 5700 is the sum of first 75 even numbers.

6 0
4 years ago
Read 2 more answers
Can someone plz help me
Colt1911 [192]

Answer:

x is less than or equal to negative 14.

Step-by-step explanation:

so for now we should pretend that the greater than or equal to is an equal sign, and simplify the problem to get x alone on a side

remove 5 from each side

-x/3=1/3-5

-x/3=14/3

multiply both sides by 3

-x=14

x=-14

so we can now replace the equal sign with the equal or greater to, so x is less than or equal to -14

4 0
3 years ago
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