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3 years ago

What is the area of this quadrilateral?

Mathematics

1 answer:

spayn [35]3 years ago

5 0

Answer:C

Step-by-step explanation:

9×4=36

2×.5×4×3=12

36+12=48

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To rationalize the denominator 2 sqrt 10/ 3 sqrt 11 you should multiply the expression by which fraction

malfutka [58]

Answer:

Step-by-step explanation:

To rationalise the denominator.

Multiply the numerator/denominator by the radical on the denominator.

The radical on the denominator is $\sqrt{11}$ , thus

Multiply the fraction by

$\frac{\sqrt{11} }{\sqrt{11} }$ → B

7 0

3 years ago

Read 2 more answers

HELP ME! In a complete sentence, describe the relationship between the three angles in the diagram below. Write and solve an equ

AlexFokin [52]

Answer:

b = 17

∠QPS = 124°

∠SPT = 17°

∠TPR = 39°

Step-by-step explanation:

The sum of the three angles shown is a linear angle, with a measure of 180°.

This fact can be used to write an equation:

(8b -12)° +b° +(2b+5)° = 180°

11b -7 = 180

11b = 187

b = 17

8b -12 = 8(17) -12 = 124

2b +5 = 2(17) +5 = 39

The value of b is 17.

The angle measures are ...

∠QPS = 124°

∠SPT = 17°

∠TPR = 39°

4 0

3 years ago

Keisha is solving the equation 7^x=9.

olganol [36]

$\bf \textit{Logarithm of exponentials}\\\\
log_a\left( x^ b \right)\implies b\cdot log_a(x)\\\\
-------------------------------\\\\
7^x=9\implies \boxed{log(7^x)=log(9)}\implies x\cdot log(7)=log(9)
\\\\\\
x=\cfrac{log(9)}{log(7)}$

3 0

3 years ago

Jim is putting money into a savings account. He starts with $350 in the savings account, and each week he adds $60.

lukranit [14]

Answer:

S= 350+60w

Step-by-step explanation:

4 0

3 years ago

Need help pleaseee i have a test on friday

larisa [96]

Answer:

x = 8

Step-by-step explanation:

Using the sine or cosine ratio in the right triangle and the exact value

sin30° = $\frac{1}{2}$ , then

sin30° = $\frac{opposite}{hypotenuse}$ = $\frac{4}{x}$ = $\frac{1}{2}$ ( cross- multiply )

x = 8

5 0

3 years ago