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SVETLANKA909090 [29]

3 years ago

11

hich is a true statement about quadrilaterals? A) All rhombuses are squares. B) All squares are rectangles. C) All rectangles ar

e squares. D) All quadrilaterals are rectangles.

2 answers:

geniusboy [140]3 years ago

4 0

Answer:

A.)

Step-by-step explanation:

aleksley [76]3 years ago

3 0

Answer:

The answer is B

Step-by-step explanation:

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alexis bought a video game player. She does not remember the price before tax. She does know that the 6% sales tax came to $4.80

attashe74 [19]

You divide 4.80 and 6

3 0

3 years ago

Suppose that a1, a2, a3, . . . is an arithmetic sequence, in which a3 = 19 and a14 = 96. Find a1.

katovenus [111]

Uhhh I think you have to add 19 and 14 which shall give you the answer to a1 so it should be 33 but then I think you divide 33 and 96 or you will multiply 33 and 96

7 0

3 years ago

Log5(x-1)+log5(x+3)-1=0

jonny [76]

Answer:

there are no real solutions

Step-by-step explanation:

$\log_5(x-1)+\log_5(x+3)-1=0\\\\\log_5(x-1)+\log_5(x+3)=1$

there is a rule that says

$\log_b(a)+\log_b(c)=\log_b(ac)$

so we have

$\log_5(x-1)+\log_5(x+3)=\log_5((x-1)(x+3))=1$

and we have the definition

$\log_a(b)=c\\\\a^{c} =b$

so we have

$5^{1} = (x-1)(x+3)\\\\5=x^{2} -1x+3x-3\\\\5=x^{2} +2x-3\\\\0=x^{2} +2x-3-5\\\\0=x^{2} +2x-8\\\\$

and using the quadratic formula we get that

there are no real solutions

3 0

3 years ago

Read 2 more answers

Please help me find large & smaller angle

Dennis_Churaev [7]

If one angle is 9 times the other angle, and they're complementary, you can set up an equation.

90 = x + 9x

x is the smaller angle. When you solve for x, you get 9.

So, the large angle is 81°, and the smaller angle is 9°.

Hope this helped!! xx

8 0

3 years ago

8 less than a number n is less than 11

iragen [17]

In mathematical form, it would be:

n-8 < 11

add 8 from both sides,

n-8+8 < 11+8

n < 19

So, n value must be less than 19

Hope this helps!

8 0

4 years ago