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Nikolay [14]
3 years ago
10

URGENT!! These triangles are similar looking at the angles. True or false

Mathematics
2 answers:
elena55 [62]3 years ago
8 0

Answer:

False

Step-by-step explanation:

Finger [1]3 years ago
5 0

Answer:

False

Step-by-step explanation:

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Pls help! Show work! How many points do you want
Rom4ik [11]

Answer:

She must score 90 points

Step-by-step explanation:

Find the average of the first 2 tests

76 + 80 = 156

Divide the sum of the first 2 tests by how many tests there were

156 ÷ 2 = 78

Multiply 82 by 3

82 x 3 = 246

Subtract 156 from 246

246 - 156 = 90

Add all the numbers together to get the average

90 + 80 + 76 = 246

246 ÷ 3 = 82

Hope this helps!

3 0
2 years ago
Given the following matrices, what 3 elements make up the first column of the product matrix DA?
Misha Larkins [42]

We have to figure out what the product of DA is,

\begin{bmatrix}-1&2&3\\8&-4&0\\6&7&1\\ \end{bmatrix}\begin{bmatrix}1\\3\\5\\ \end{bmatrix}=\begin{bmatrix}a\\b\\c\\ \end{bmatrix}

We know that,

\begin{bmatrix}a&b&c\\d&e&f\\g&h&i\\\end{bmatrix}\begin{bmatrix}x\\y\\z\\\end{bmatrix}=\begin{bmatrix}ax+by+cz\\dx+ey+fz\\gx+hy+iz\\\end{bmatrix}

So,

a=-1\cdot1+2\cdot3+3\cdot5=-1+6+15=20

b=8\cdot1+(-4)\cdot3+0\cdot5=8-12=-4

c=6\cdot1+7\cdot3+1\cdot5=6+21+5=32

So the solution is,

a,b,c=\boxed{20,-4,32}

Hope this helps :)

4 0
3 years ago
when converting into scientific notation moving the decimal point to the left means the exponent on the 10 should be positive. I
harina [27]
This is false, since moving the decimal point to the left makes the number smaller. Therefore, the number on the exponent should be negative.
5 0
3 years ago
Select the correct properties of slope below.
notka56 [123]
A D E are the answers because the second A is the opposite and an undefined slope is a vertical line not a zero like a flat one.
8 0
3 years ago
Read 2 more answers
PLEASE HELP ME WITH THIS ITS DUE IN 15 MINS!! WILL GIVE BRAINLIST!! HELP!
Whitepunk [10]

Answer:b

Step-by-step explanation:

6 0
3 years ago
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