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il63 [147K]
3 years ago
7

Please Help! Brainliest Answer!

Mathematics
1 answer:
Alla [95]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Using sine rule

a/sin A =b/sin B

8/sin90° = x/sin60°

8 * sin60° = x

x =

4 \sqrt{3}

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Can someone please help me with this
lana [24]

Answer:

3x-10+70°=180°(Supplementary angles)

3x+60°=180°

3x=180°-60°

3x=120°

3x/3 =120°/3

x=40°

Step-by-step explanation:

Hope that this is helpful.

Have a wonderful day.

6 0
3 years ago
Three U.S coins add to $1 If one of them is not half a dollar what is the smallest value coin?
Svet_ta [14]
The smallest value is $0.25 (a quarter) because you can use two quarters and a half dollar. Only one of them can't be a half dollar, but the other two can be.
4 0
3 years ago
A case of soda has 24 cans in it. There are 12 cases of soda. 1) What is the total number of cans of soda there are? 2) The soda
ElenaW [278]

Answer:

1) 288 cans

2) about 41 cans per team

Step-by-step explanation:

For number one you would multiply the numbers

24x12=288

there are 288 cans in total

2) divide 288 by 7 to distribute the cans evenly

each team gets about 41 cans

6 0
4 years ago
A is a 4x4 matrix and A^2 + 4A - 5I = 0. If det(A+2I)>0, enter det(A+2I)
maw [93]
\mathbf A^2+4\mathbf A-5\mathbf I=0
\implies\mathbf A^2+4\mathbf A+4\mathbf I=(\mathbf A+2\mathbf I)^2=9\mathbf I
\implies\det\bigg((\mathbf A+2\mathbf I)^2\bigg)=\det(9\mathbf I)
\implies\det(\mathbf A+2\mathbf I)^2=9^4\det\mathbf I
\implies\det(\mathbf A+2\mathbf I)=\pm\sqrt{9^4}
\implies\det(\mathbf A+2\mathbf I)=9^2=81

where we take the positive root because we're told that the determinant is positive.
5 0
3 years ago
Find the slope of the line that passes through the points<br><br> A(0, 2) and B(4, –1).
kati45 [8]

Slope=M=y2-y1/X2-X1=

-1 -2 /4-0=

-3/4  =

-0.75

5 0
3 years ago
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