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3 years ago

Plz help getting timed

Mathematics

2 answers:

aniked [119]3 years ago

5 0

The answer is 14.
7+7= 14
14/7 = 2
7•2=14

IrinaK [193]3 years ago

3 0

Answer:

Step-by-step explanation:

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What is the value of 11 + 3(9 – 6) – 4?<br> A) 12<br> B) 16<br> C) 18<br> D) 22

ser-zykov [4K]

the answer will be 16 (B)

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2 years ago

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Calculate the length of the missing side

Delicious77 [7]

You have to use the Pythagorean theorem because it is a right triangle. Consequently it is the square root of 12 squared plus 17 squared or approximately 20.81

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3 years ago

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Please help ASAP!! WILL MARK BRAINLY!!

erastova [34]

Answer:

$A=91^o$

$B=146^o$

$C=89^o$

$D=34^o$

Step-by-step explanation:

we know that

In an inscribed quadrilateral ABCD opposite angles are supplementary

$A+C=180^o$ ----> equation 1

$B+D=180^o$ ----> equation 2

step 1

Find the value of x

substitute the given values in equation 1

$(2x+3)^o+(2x+1)^o=180^o$

$4x=180-4\\4x=176\\x=44$

step 2

Find the measure of angle A,C and D

substitute the value of x

$A=(2(44)+3)=91^o$

$C=(2(44)+1)=89^o$

$D=(44-10)=34^o$

step 3

Find the measure of angle B

Remember the equation 2

$B+D=180^o$ ----> equation 2

substitute the value of D

$B+34^o=180^o$

$B=180^o-34^o=146^o$

6 0

3 years ago

Wendi worked 32 hours all from monday to friday. she worked 7 hours each day from monday through thursday. how many hours did we

goldfiish [28.3K]

Since we Wendi worked a combined 28 hours Monday through Thursday (7 Hr/Day x 4 Days = 28 Cumulative Hours), we can subtract the 28 hours from the weekly sum of 32 hours, and conclude that on the final day, Wendi worked 4 hours (32 Total Hours - 28 Cumulative Hours = 4 Hours Remaining).

Final Answer: "On Friday, Wendi worked 4 hours."

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3 years ago

Easter island is roughly triangular in shape. The height of the triangle is 7 mi less than the base. The area is 60 mi^2. Find t

lesantik [10]

Answer:

Base of Island = 15 m, Height = 8 m

Step-by-step explanation:

Here, let the base of the triangular island = b meters

So, the height of the region = (b-7) m

Area of the island = 60 sq.meters

Now, Area of the Triangle $= \frac{1}{2} \times \textrm{Base x Height}$

or, $60 m^{2} = \frac{1}{2} \times b \times (b-7)$

or, 120 = b(b-7)

⇒ $b^{2} - 7b - 120 = 0 \implies b^{2} -15b+ 8b -120=0$

or, b(b-15)+8(b-15) = 0

⇒(b-15)(b+8) = 0

Solving this, we get either b = 15 m , or b = -8m

But as b is the base of the triangle , so b CANNOT BE NEGATIVE.

⇒ b ≠ -8 m

Hence, Base of Island = b = 15 m

and Height = b -7 = 15 - 7 = 8 m

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2 years ago