3 years ago

WILL MARK YOU BRAINLIEST

Mathematics

2 answers:

Reptile [31]3 years ago

4 0

Answer:

(-1,-3)

Step-by-step explanation:

90 degree rotation = (x,y) —> (-y,x)

Nikolay [14]3 years ago

3 0

Answer:

i believ its b

Step-by-step explanation:

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How many 2-digit positive integers are there such that the product of the product of their two digits is 24?

musickatia [10]

I can only list four of them:. 38, 46, 64, and 83.

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3 years ago

What is the following product?

KiRa [710]

ANSWER

$2 \sqrt{42} +7 \sqrt{2}- 6- \sqrt{21}$

EXPLANATION

The given product is:

$( \sqrt{14} - \sqrt{3} )( \sqrt{12} + \sqrt{7} )$

We expand using the distributive property to obtain:

$\sqrt{14}( \sqrt{12} + \sqrt{7}) -\sqrt{3}( \sqrt{12} + \sqrt{7} )$

Extract the perfect squares to get:

$\sqrt{14}(2 \sqrt{3} + \sqrt{7}) -\sqrt{3}( 2\sqrt{3} + \sqrt{7} )$

Expand further to get;

$2 \sqrt{42} +7 \sqrt{2}- 2(3) - \sqrt{21}$

This simplifies to,

$2 \sqrt{42} +7 \sqrt{2}- 6- \sqrt{21}$

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3 years ago

Three numbers a;b; 9; ... are in geometric sequence. If 1 is subtracted from the first term then

kenny6666 [7]

if a b 9 are in GP

b÷a = 9 ÷ b

b^2 = 9a

if a - 1 b 9 are in AP

2b = a+8

b = a+8÷2

substitute

b is equal to a + 8 by 2 in b square equal to 9 a

(a+8÷2)^2 = 9a

a^2+16a+64 = 36a

a^2 -20a +64 =0

(a-16) (a-4) =0

a= 16 or a=4

when a=16 b= 12

when a=4 b= 6

Value of a and b are given above

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The unit rate would be 11/2. Hope this helped.

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Line GH contains points G(–2, 6) and H(5, –3). What is the slope of ?

hoa [83]

7/9 is the answer I believe

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