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4 years ago

Use the model Write the addition sentence. What number sentence does this model show

Mathematics

1 answer:

Nataliya [291]4 years ago

6 0

The answer 10 + 4 = 14

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Which of the following are geometric sequences? Check all that apply. A. 10, 5, 2.5, 1.25, 0.625, 0.3125 B. 5, 10, 20, 40, 80, 1

GaryK [48]

Which of the following are geometric sequences? Check all that apply.
A. 10, 5, 2.5, 1.25, 0.625, 0.3125
B. 5, 10, 20, 40, 80, 160
C. 3, 6, 9, 12 ,15, 18
D. 1, 3, 9, 27, 81

8 0

3 years ago

Read 2 more answers

Eduardo rides his bicycle for 6 hours. What was Eduardo's average speed if he rides a distance

Juli2301 [7.4K]

Answer:

14 mi per hour

Step-by-step explanation:

14x6 equals 84

5 0

3 years ago

Which number sentence is true?

podryga [215]

Answer:

Step-by-step explanation:

Because -8.2+(-4.1)=-8.2-4.1=-12.3.

7 0

3 years ago

Read 2 more answers

Can someone help me with these 5 question I have attached?

Contact [7]

Example 2: x=10

Example 3: x=-1

Example 4: x=35

Example 5: a-b+c=9

Example 6: x=1, x=1/2

Further explanation:

Example 2:

$\sqrt{4x-4} =6$

Taking Square on both sides

$(\sqrt{4x-4})^2 =(6)^2\\4x-4=36\\4x=36+4\\4x=40\\\frac{4x}{4}=\frac{40}{4}\\x=10$

Example 3:

$9+\sqrt{4x+8}=11$

Subtracting 9 from both sides

$9-9+\sqrt{4x+8}=11-9\\\sqrt{4x+8}=2\\$

Taking Square on both sides

$(\sqrt{4x+8})^2=(2)^2\\4x+8=4\\4x=4-8\\4x=-4\\\frac{4x}{4}=-\frac{4}{4}\\x=-1$

Example 4:

$8+\sqrt{x+1}=2$

subtracting 8 from both sides

$8-8+\sqrt{x+1}=2-8\\\sqrt{x+1}=-6$

Taking Square on both sides

$(\sqrt{x+1})^2=(-6)^2\\x+1=36\\$

Subtracting 1 from both sides

$x+1-1=36-1\\x=35$

Example 5:

$\sqrt{a-b+c}=3$

Taking Square on both sides

$(\sqrt{a-b+c})^2=(3)^2\\a-b+c=9\\$

Example 6:

$2\sqrt{2x-1}=4x-2$

Taking square on both sides

$(2\sqrt{2x-1})^2=(4x-2)^2\\4(2x-1)=16x^2+4-16x\\8x-4=16x^2-16x+4\\8x=16x^2-16x+4+4\\8x=16x^2-16x+8\\16x^2-16x-8x+8=0\\16x^2-24x+8=0$

dividng whole equation by 8

$2x^2-3x+1=0\\2x^2-2x-x+1=\\2x(x-1)-1(x-1)=0\\(2x-1)(x-1)=0\\2x-1=0 => x=\frac{1}{2}\\x-1=0 => x=1$

Keywords: Radical Expressions, Examples

Learn more about radical expressions at:

#LearnwithBrainly

3 0

3 years ago

PLEASE HELP ME OUT!!!A chef has less than 25.8 lb of rice. She takes out 5 lb to use during the day and stores the rest in conta

aksik [14]

25.8 - 5 = 20.8
20.8 divide by 2.5 = 8.32
so it should be 8

4 0

3 years ago