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3 years ago

Please solve this , i will mark brainliest

Mathematics

2 answers:

erastova [34]3 years ago

6 0

C thank me later thanks

balandron [24]3 years ago

6 0

Answer:

The correct answer to your problem is C. t= -10, t= -3

(t + 3)(t +10) = 0

t + 3 = 0

t + 10 = 0

0 - 3 = -3 and 0 - 10 = -10, therefore your answer is C.

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The diagram shows two shapes A and B. Prove that both of them have equal perimeter.

Hatshy [7]

Answer:

see explanation

Step-by-step explanation:

Calculate the perimeters by summing the measures of the sides.

Left figure ( starting with base and summing clockwise )

x + 5 + (x - 6) + (y - 5) + 6 + y ( brackets are the measure of the indents )

= x + 5 + x - 6 + y - 5 + 6 + y

= 2x + 2y

Right figure ( starting with base and summing clockwise )

x + 2 + (x - 3) + (y - 2) + 3 + y

= x + 2 + x - 3 + y - 2 + 3 + y

= 2x + 2y

Both figures have perimeters of 2x + 2y cm

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3 years ago

Josiah paid $19.75 for 2.5 pounds of coffee beans. What was the cost of the beans per pounds?

Olin [163]

19.75 / 2.5 = 7.90 per lb

5 0

3 years ago

Read 2 more answers

State the number of possible real zeros and turning points of f(x) = x7 – 6x6 + 8x5. Then determine all of the real zeros by fac

Rudiy27

Answer:

steps below

Step-by-step explanation:

f(x) = x⁷ – 6x⁶ + 8x⁵

f'(x) = 7x⁶ - 36x⁵ + 40x⁴

= x⁴ (7x² - 36x + 40) ... (1)

Critical point (x,y): x = 0 , x = (36 ± √(-36)²-4*7*40) / (2*7) = (18±2√11) / 7

x = 0 or x = 3.5 or x = 1.6

plug into (1): y = 0 , y = -394.3 , y = 10.1

extreme : maximum (1.6 , 10.1) minimum (3.5 , -394.3) ... turning points

x⁷ – 6x⁶ + 8x⁵ = x⁵ (x² - 6x + 8) = x⁵ (x-2) (x-4) =0

real zeros: x = 0, x=2, x=4

3 0

3 years ago

The perimeter of a triangle is 7272 cm. the longest side is 66 cm less than the sum of the other two sides. twice the shortest s

VashaNatasha [74]

Suppose the three sides are a, b, and c, with c being the longest, a being the shortest
first equation: c=(a+b)-66
second equation: 2a=c-55=> c=2a+55
plug c=2a+55 into the first equation: 2a+55= a+b-66 => b=a+121
a+b+c=a+(a+121)+(2a+55)=7272 =>4a+176=7272 =>a=1774
a=1774, b=1895, c=3603

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3 years ago

F(x)=2x+1; g(x)=3x-2 find (f+g) (3)

baherus [9]

Step-by-step explanation:

GIVEN,

f(x)=2x+1; g(x)=3x-2

NOW,

( 2x+1 + 3x-2)×3

=(5x-2)×3

=15x - 6 ANSWER

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3 years ago