2 years ago

Use the Quadratic Formula to solve the equation x2 + 4x = – 11.

Mathematics

1 answer:

Tpy6a [65]2 years ago

7 0

Answer:

3rd option is the correct answer

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√70 is between which two numbers on the number line?

Leto [7]

Answer:

C) 8 and 9

Step-by-step explanation:

We know that 70 is between two perfect squares.

The square numbers 64 and 81 can help us solve this question.

64<70<81

We take square root to get:

$\sqrt{64} \: < \: \sqrt{70} < \sqrt{81}$

We simplify this to get:

$8 \: < \: \sqrt{70} \: < \: 9$

Therefore √70 is between 8 and 9.

The correct option is C.

6 0

3 years ago

Dennis and Ivy share some sweets between them in the ratio 7:4 Dennis got 42 sweets. How many does ivy get

MrRa [10]

Answer:

$Ivy = 24$

Step-by-step explanation:

Given

$Dennis : Ivy = 7 : 4$

Required

Determine the amount of sweet Ivy gets when Dennis = 42

We have:

$Dennis : Ivy = 7 : 4$ and

$Dennis = 42$

Substitute 42 for Dennis in $Dennis : Ivy = 7 : 4$

$42 : Ivy = 7 : 4$

Convert to fraction

$\frac{42}{Ivy} = \frac{7}{4}$

Cross Multiply:

$Ivy * 7 = 42 * 4$

Divide through by 7

$\frac{Ivy * 7}{7} = \frac{42 * 4}{7}$

$Ivy = \frac{42 * 4}{7}$

$Ivy = 6* 4$

$Ivy = 24$

6 0

2 years ago

Paul wants to gift wrap the boxes. He has 1,000.00 square inches of wrapping paper. Does Paul have enough to wrap all three boxe

zhannawk [14.2K]

Answer:

Step-by-step explanation:

5 0

3 years ago

The plans for a shed call for a rectangular floor with a perimeter of 276 ft. the length is two times the width. find the length

hichkok12 [17]

2l+2w=276
l=2w

2(2w)+2w=276
6w=276
w=46
l=92

6 0

2 years ago

On Friday nights the local diner serves three main entrees, each with a choice of vegetable. The entrees are beef, chicken, and

Vlad [161]

C. chicken, spinach

(1 entree and 1 vegetable)

5 0

3 years ago